hashcat/docs/changes.txt

* changes v6.2.2 -> v6.2.x

##
## Bugs
##

- Fixed 'E' rule in pure kernel mode which was ignoring letters that are in positions that are multiples of 4
- Fixed false negative in hash-mode 15900 (DPAPI masterkey file v2) if password was longer than 64 characters

##
## Improvements
##

- Alias Devices: Show a warning in case the user specifically listed a device to use which in a later step is skipped because it is an alias of another active device
- Backend Information: Added new column showing the PCI Address per CUDA/OpenCL device to easier identify broken cards

##
## Technical
##

- Tests: Changed tests for VeraCrypt from -a 0 to -a 3, because password extension is not available to all shells

* changes v6.2.1 -> v6.2.2

##
## Algorithms
##

- Added hash-mode: bcrypt(md5($pass)) / bcryptmd5
- Added hash-mode: bcrypt(sha1($pass)) / bcryptsha1
- Added hash-mode: FortiGate256 (FortiOS256)
- Added hash-mode: Linux Kernel Crypto API (2.4)
- Added hash-mode: MurmurHash
- Added hash-mode: OpenEdge Progress Encode
- Added hash-mode: md5(utf16le($pass))
- Added hash-mode: sha1(utf16le($pass))
- Added hash-mode: sha256(utf16le($pass))
- Added hash-mode: sha384(utf16le($pass))
- Added hash-mode: sha512(utf16le($pass))
- Added hash-mode: md5(md5(md5($pass)))
- Added hash-mode: sha1(sha1($salt.$pass.$salt))
- Added hash-mode: sha256($salt.sha256($pass))
- Added hash-mode: sha384($pass.$salt)
- Added hash-mode: sha384($salt.$pass)
- Added hash-mode: sha384($salt.utf16le($pass))
- Added hash-mode: sha384(utf16le($pass).$salt)

##
## Features
##

- Autodetect hash-type: performs an automatic analysis of input hash(es), either listing compatible algorithms, or executing the attack (if only one compatible format is found)
- Autodetect hash-type: added option --identify to only perform autodetection of hash-type, without back-end device initialization

##
## Bugs
##

- Fixed error message in -a 9 mode with rules when number of words from wordlist is not in sync with number of unique salts
- Fixed error-handling logic in monitor thread to not return in case of error (disk full, permission error, ...) but to retry instead
- Fixed false negatives with TrueCrypt/VeraCrypt when zip- or gzip-compressed files were used as keyfiles
- Fixed free memory-size output for skipped GPU (both automatic and manual) of --backend-info information screen

##
## Improvements
##

- AES Crypt Plugin: Reduced max password length from 256 to 128 which improved performance by 22%
- CUDA Backend: If --stdout is used, do not warn about missing CUDA SDK
- Folder Management: Add support for XDG Base Directory specification when hashcat is installed using 'make install'
- Hardware Monitor: Add support for GPU device utilization readings from sysfs (AMD on Linux)
- OpenCL Backend: Use CL_DEVICE_BOARD_NAME_AMD instead of CL_DEVICE_NAME for device name (when supported by OpenCL runtime)
- Performance Monitor: Suggest -S to improve cracking performance in specific attack configurations
- RAR3-p (Compressed): Fix workaround in unrar library in AES constant table generation to enable multi-threading support
- RC4 Kernels: Improved performance by 20%+ with new RC4 code in hash-modes Kerberos 5 (etype 23), MS Office (<= 2003) and PDF (<= 1.6)
- Scrypt Kernels: Re-enable use of kernel cache in scrypt-based kernels
- Status Screen: Show currently-running kernel type (pure, optimized) and generator type (host, device)
- UTF8-to-UTF16: Replaced naive UTF8-to-UTF16 conversion with true conversion for RAR3, AES Crypt, MultiBit HD (scrypt) and Umbraco HMAC-SHA1

##
## Technical
##

- Dependencies: Updated LZMA SDK from 19.00 to 21.02 alpha
- Dependencies: Updated xxHash from 0.1.0 to v0.8.0 - Stable XXH3
- Documentation: Update missing documentation in plugin developer guide for OPTS_TYPE_MP_MULTI_DISABLE and OPTS_TYPE_NATIVE_THREADS
- Hashrate: Update inner-loop hashrate prediction to handle new salt_repeats feature and also respect _loop2 kernel runtime
- Kernels: Add RC4 cipher to crypto library with optimized shared memory access pattern which will not cause any bank conflicts if -u <= 32
- Kernels: Add standalone true UTF8-to-UTF16 converter kernel that runs after amplifier. Use OPTS_TYPE_POST_AMP_UTF16LE from plugin
- Kernel Cache: Add module_jit_build_options() string from modules to kernel cache checksum calculation
- Modules: Recategorized HASH_CATEGORY option in various modules
- Modules: Added hash categories HASH_CATEGORY_IMS and HASH_CATEGORY_CRYPTOCURRENCY_WALLET
- Modules: Changed hash category of Python passlib from HASH_CATEGORY_GENERIC_KDF to HASH_CATEGORY_FRAMEWORK
- Unit-Tests: Added missing support for OPTS_TYPE_LOOP_PREPARE, OPTS_TYPE_LOOP_PREPARE2 and salt_repeats in self-test
- Unit-Tests: Added missing unit-test for Stargazer Stellar Wallet XLM

* changes v6.2.0 -> v6.2.1

##
## Technical
##

- Dependencies: Updated unrar source from 5.9.4 to 6.0.5
- Dependencies: Make unrar dependencies optional and disable hash-mode 23800 if dependency is disabled

* changes v6.1.1 -> v6.2.0

##
## Algorithms
##

- Added hash-mode: Apple iWork
- Added hash-mode: AxCrypt 2 AES-128
- Added hash-mode: AxCrypt 2 AES-256
- Added hash-mode: BestCrypt v3 Volume Encryption
- Added hash-mode: Bitwarden
- Added hash-mode: Dahua Authentication MD5
- Added hash-mode: KNX IP Secure - Device Authentication Code
- Added hash-mode: MongoDB ServerKey SCRAM-SHA-1
- Added hash-mode: MongoDB ServerKey SCRAM-SHA-256
- Added hash-mode: Mozilla key3.db
- Added hash-mode: Mozilla key4.db
- Added hash-mode: MS Office 2016 - SheetProtection
- Added hash-mode: PDF 1.4 - 1.6 (Acrobat 5 - 8) - edit password
- Added hash-mode: PKCS#8 Private Keys
- Added hash-mode: RAR3-p (Compressed)
- Added hash-mode: RAR3-p (Uncompressed)
- Added hash-mode: RSA/DSA/EC/OPENSSH Private Keys
- Added hash-mode: SolarWinds Orion v2
- Added hash-mode: SolarWinds Serv-U
- Added hash-mode: SQLCipher
- Added hash-mode: Stargazer Stellar Wallet XLM
- Added hash-mode: Stuffit5
- Added hash-mode: Telegram Desktop >= v2.1.14 (PBKDF2-HMAC-SHA512)
- Added hash-mode: Umbraco HMAC-SHA1
- Added hash-mode: sha1($salt.sha1($pass.$salt))
- Added hash-mode: sha1(sha1($pass).$salt)

##
## Features
##

- Added new attack-mode: Association Attack (aka "Context Attack") to attack hashes from a hashlist with associated "hints"
- Added support for true UTF-8 to UTF-16 conversion in kernel crypto library
- Added option --hash-info to show generic information for each hash-mode
- Added command prompt [f]inish to tell hashcat to quit after finishing the current attack

##
## Bugs
##

- Fixed access to filename which is a null-pointer in benchmark mode
- Fixed both false negative and false positive results in -m 3000 in -a 3 (affecting only NVIDIA GPU)
- Fixed buffer overflow in -m 1800 in -O mode which is optimized to handle only password candidates up to length 15
- Fixed buffer overflow in -m 4710 in -P mode and only in single hash mode if salt length is larger than 32 bytes
- Fixed hardware management sysfs readings in status screen (typically ROCm controlled GPUs)
- Fixed include guards in several header files
- Fixed incorrect maximum password length support for -m 400 in optimized mode (reduced from 55 to 39)
- Fixed internal access on module option attribute OPTS_TYPE_SUGGEST_KG with the result that it was unused
- Fixed invalid handling of outfile folder entries for -m 22000
- Fixed memory leak causing problems in sessions with many iterations - for instance, --benchmark-all or large mask files
- Fixed memory leaks in several cases of errors with access to temporary files
- Fixed NVML initialization in WSL2 environments
- Fixed out-of-boundary reads in cases where user activates -S for fast but pure hashes in -a 1 or -a 3 mode
- Fixed out-of-boundary reads in kernels using module_extra_buffer_size() if -n is set to 1
- Fixed password reassembling for cracked hashes on host for slow hashes in optimized mode that are longer than 32 characters
- Fixed race condition in potfile check during removal of empty hashes
- Fixed race condition resulting in out of memory error on startup if multiple hashcat instances are started at the same time
- Fixed rare case of misalignment of the status prompt when other user warnings are shown in the hashcat output
- Fixed search of tuning database - if a device was not assigned an alias, it couldn't be found in general
- Fixed test on gzip header in wordlists and hashlists
- Fixed too-early execution of some module functions that use non-final values opts_type and opti_type
- Fixed unexpected non-unique salts in multi-hash cracking in Bitcoin/Litecoin wallet.dat module which led to false negatives
- Fixed unit test for -m 3000 by preventing it to generate zero hashes
- Fixed unit tests using 'null' as padding method in Crypt::CBC but actually want to use 'none'
- Fixed unterminated salt buffer in -m 23400 module_hash_encode() in case salt was of length 256
- Fixed vector datatype support in -m 21100 only -P mode and only -a 3 mode were affected

##
## Improvements
##

- Apple Keychain: Notify the user about the risk of collisions / false positives
- CUDA Backend: Do not warn about missing CUDA SDK installation if --backend-ignore-cuda is used
- CUDA Backend: Give detailed warning if either the NVIDIA CUDA or the NVIDIA RTC library cannot be initialized
- CUDA Backend: Use blocking events to avoid 100% CPU core usage (per GPU)
- OpenCL Runtime: Workaround JiT compiler deadlock on NVIDIA driver >= 465.89
- OpenCL Runtime: Workaround JiT compiler segfault on legacy AMDGPU driver compiling RAR3 OpenCL kernel
- RAR3 Kernels: Improved loop code, improving performance by 23%
- Scrypt Kernels: Added a number of GPU specific optimizations per hash modes to hashcat.hctune
- Scrypt Kernels: Added detailed documentation on device specific tunings in hashcat.hctune
- Scrypt Kernels: Optimized Salsa code portion by reducing register copies and removed unnecessary byte swaps
- Scrypt Kernels: Reduced kernel wait times by making it a true split kernel where iteration count = N value
- Scrypt Kernels: Refactored workload configuration strategy based on available resources
- Startup time: Improved startup time by avoiding some time-intensive operations for skipped devices

##
## Technical
##

- Bcrypt: Make BCRYPT entry for CPU in hashcat.hctune after switch to OPTS_TYPE_MP_MULTI_DISABLE (basically set -n to 1)
- Benchmark: Update benchmark_deep.pl with new hash modes added (also new hash modes which were added with v6.1.0)
- Building: Declare phony targets in Makefile to avoid conflicts of a target name with a file of the same name
- Building: Fixed build warnings on macOS for unrar sources
- Building: Fixed test for DARWIN_VERSION in Makefile
- Commandline Options: Removed option --example-hashes, now an alias of --hash-info
- Compute API: Skipping devices instead of stop if error occured in initialization
- Documentation: Added 3rd party licenses to docs/license_libs
- Hash-Mode 8900 (Scrypt): Changed default benchmark scrypt parameters from 1k:1:1 to 16k:8:1 (default)
- Hash-Mode 11600 (7-Zip): Improved memory handling (alloc and free) for the hook function
- Hash-Mode 13200 (AxCrypt): Changed the name to AxCrypt 1 to avoid confusion
- Hash-Mode 13300 (AxCrypt in-memory SHA1): Changed the name to AxCrypt 1 in-memory SHA1
- Hash-Mode 16300 (Ethereum Pre-Sale Wallet, PBKDF2-HMAC-SHA256): Use correct buffer size allocation for AES key
- Hash-Mode 20710 (sha256(sha256($pass).$salt)): Removed unused code and fixed module_constraints
- Hash-Mode 22000 (WPA-PBKDF2-PMKID+EAPOL): Support loading a hash from command line
- Hash-Mode 23300 (Apple iWork): Use correct buffer size allocation for AES key
- Hash Parser: Output support for machine-readable hash lines in --show and --left and in error messages
- Kernel Development: Kernel cache is disabled automatically when hashcat is compiled with DEBUG=1
- Kernel Functions: Added generic AES-GCM interface see OpenCL/inc_cipher_aes-gcm.h
- Kernel Functions: Refactored OpenCL/inc_ecc_secp256k1.cl many functions, add constants and documentation
- Kernel Functions: Refactored OpenCL/inc_ecc_secp256k1.cl to improve usage in external programs
- Kernel Functions: Wrap atomic functions with hc_ prefix. Custom kernels need to rename "atomic_inc()" to "hc_atomic_inc()"
- Kernel Parameters: Added new parameter 'salt_repeat' to improve large buffer management
- Module Parameters: Add OPTS_TYPE_MP_MULTI_DISABLE for use by plugin developers to prevent multiply -n with the MCU count
- Module Parameters: Add OPTS_TYPE_NATIVE_THREADS for use by plugin developers to enforce native thread count
- Module Structure: Add 3rd party library hook management functions. This also requires an update to all existing module_init()
- OpenCL Runtime: Add support for clUnloadPlatformCompiler() to release some resources after JiT compilation
- OpenCL Runtime: Switched default OpenCL device type on macOS from GPU to CPU. Use -D 2 to enable GPU devices
- OpenCL Runtime: Update module_unstable_warnings() for all hash modes based on most recent versions of many OpenCL runtimes
- Unit tests: Added 'potthrough' (like passthrough, but hash:plain) to tools/test.pl
- Unit tests: Added Python 3 support for all of the Python code in our test framework
- Unit tests: Fixed the packaging of test (-p) feature
- Unit tests: Updated test.sh to show kernel type (pure or optimized) in output
- Unit tests: Use python3/pip3 instead of just python/pip in tools/install_modules.sh

* changes v6.1.0 -> v6.1.1

##
## Bugs
##

- Fixed unresolvable relative paths in hashcat.log

* changes v6.0.0 -> v6.1.0

##
## Algorithms
##

- Added hash-mode: Apple Keychain
- Added hash-mode: XMPP SCRAM

##
## Bugs
##

- Fixed alias detection with additional processor core count check
- Fixed false negatives in hash-mode 10901 if hash-mode 9200, 10000, 10900 or 20300 was used to compile the kernel binary
- Fixed integer overflow for large masks in -a 6 attack mode
- Fixed maximum password length in modules of hash-modes 600, 7800, 7801 and 9900
- Fixed non-zero status code when using --stdout
- Fixed uninitialized value in bitsliced DES kernel (BF mode only) leading to false negatives

##
## Improvements
##

- Compile macOS: Fixed makefile target 'clean' to correctly remove *.dSYM folders
- Compile ZLIB: Fixed makefile include paths in case USE_SYSTEM_ZLIB is used
- Hcchr Files: Renamed some .charset files into .hcchr files
- Hash-Mode 21200 (md5(sha1($salt).md5($pass))): Improved speed by using pre-computed SHA1
- OpenCL Devices: Utilize PCI domain to improve alias device detection
- OpenCL Kernels: Added datatypes to literals of enum costants
- OpenCL Kernels: Added pure kernels for hash-mode 600 (BLAKE2b-512)
- OpenCL Runtime: Add some unstable warnings for some SHA512 based algorithms on AMD GPU on macOS
- OpenCL Runtime: Reinterpret return code CL_DEVICE_NOT_FOUND from clGetDeviceIDs() as non-fatal

##
## Technical
##

- Backend: Changed the maximum number of compute devices from 64 to 128
- Tests: Improved tests for hash-mode 11300 (Bitcoin/Litecoin wallet.dat)
- Tests: Improved tests for hash-mode 13200 (AxCrypt)
- Tests: Improved tests for hash-mode 13600 (WinZip)
- Tests: Improved tests for hash-mode 16400 (CRAM-MD5 Dovecot)
- Tests: Improved tests for hash-mode 16800 (WPA-PMKID-PBKDF2)

* changes v5.1.0 -> v6.0.0

##
## Features
##

- Refactored hash-mode integration and replaced it with a fully modularized plugin interface
- Converted all existing hardwired hash-modes to hashcat plugins
- Added comprehensive plugin developer guide on adding new/custom hash-modes to hashcat
- Refactored compute backend interface to allow adding compute API other than OpenCL
- Added CUDA as a new compute backend (enables hashcat to run on NVIDIA Jetson, IBM POWER9 w/ Nvidia V100, etc.)
- Support automatic use of all available GPU memory when using CUDA backend
- Support automatic use of all available CPU cores for hash-mode-specific hooks
- Support on-the-fly loading of compressed wordlists in zip and gzip format
- Support deflate decompression for the 7-Zip hash-mode using zlib hook
- Added additional documentation on hashcat brain, slow-candidate interface and keyboard-layout mapping features
- Keep output of --show and --left in the original ordering of the input hash file
- Improved performance of many hash-modes

##
## Algorithms
##

- Added hash-mode: AES Crypt (SHA256)
- Added hash-mode: Android Backup
- Added hash-mode: AuthMe sha256
- Added hash-mode: BitLocker
- Added hash-mode: BitShares v0.x
- Added hash-mode: Blockchain, My Wallet, Second Password (SHA256)
- Added hash-mode: Citrix NetScaler (SHA512)
- Added hash-mode: DiskCryptor
- Added hash-mode: Electrum Wallet (Salt-Type 3-5)
- Added hash-mode: Huawei Router sha1(md5($pass).$salt)
- Added hash-mode: Java Object hashCode()
- Added hash-mode: Kerberos 5 Pre-Auth etype 17 (AES128-CTS-HMAC-SHA1-96)
- Added hash-mode: Kerberos 5 Pre-Auth etype 18 (AES256-CTS-HMAC-SHA1-96)
- Added hash-mode: Kerberos 5 TGS-REP etype 17 (AES128-CTS-HMAC-SHA1-96)
- Added hash-mode: Kerberos 5 TGS-REP etype 18 (AES256-CTS-HMAC-SHA1-96)
- Added hash-mode: MultiBit Classic .key (MD5)
- Added hash-mode: MultiBit HD (scrypt)
- Added hash-mode: MySQL $A$ (sha256crypt)
- Added hash-mode: Open Document Format (ODF) 1.1 (SHA-1, Blowfish)
- Added hash-mode: Open Document Format (ODF) 1.2 (SHA-256, AES)
- Added hash-mode: Oracle Transportation Management (SHA256)
- Added hash-mode: PKZIP archive encryption
- Added hash-mode: PKZIP Master Key
- Added hash-mode: Python passlib pbkdf2-sha1
- Added hash-mode: Python passlib pbkdf2-sha256
- Added hash-mode: Python passlib pbkdf2-sha512
- Added hash-mode: QNX /etc/shadow (MD5)
- Added hash-mode: QNX /etc/shadow (SHA256)
- Added hash-mode: QNX /etc/shadow (SHA512)
- Added hash-mode: RedHat 389-DS LDAP (PBKDF2-HMAC-SHA256)
- Added hash-mode: Ruby on Rails Restful-Authentication
- Added hash-mode: SecureZIP AES-128
- Added hash-mode: SecureZIP AES-192
- Added hash-mode: SecureZIP AES-256
- Added hash-mode: SolarWinds Orion
- Added hash-mode: Telegram Desktop App Passcode (PBKDF2-HMAC-SHA1)
- Added hash-mode: Telegram Mobile App Passcode (SHA256)
- Added hash-mode: Web2py pbkdf2-sha512
- Added hash-mode: WPA-PBKDF2-PMKID+EAPOL
- Added hash-mode: WPA-PMK-PMKID+EAPOL
- Added hash-mode: md5($salt.sha1($salt.$pass))
- Added hash-mode: md5(sha1($pass).md5($pass).sha1($pass))
- Added hash-mode: md5(sha1($salt).md5($pass))
- Added hash-mode: sha1(md5(md5($pass)))
- Added hash-mode: sha1(md5($pass.$salt))
- Added hash-mode: sha1(md5($pass).$salt)
- Added hash-mode: sha1($salt1.$pass.$salt2)
- Added hash-mode: sha256(md5($pass))
- Added hash-mode: sha256($salt.$pass.$salt)
- Added hash-mode: sha256(sha256_bin($pass))
- Added hash-mode: sha256(sha256($pass).$salt)

##
## Bugs
##

- Fixed buffer overflow in build_plain() function
- Fixed buffer overflow in mp_add_cs_buf() function
- Fixed calculation of brain-session ID - only the first hash of the hashset was taken into account
- Fixed cleanup of password candidate buffers on GPU as set from autotune when -n parameter was used
- Fixed copy/paste error leading to invalid "Integer overflow detected in keyspace of mask" in attack-mode 6 and 7
- Fixed cracking multiple Office hashes (modes 9500, 9600) if hashes shared the same salt
- Fixed cracking of Blockchain, My Wallet (V1 and V2) hashes when testing decrypted data in unexpected format
- Fixed cracking of Cisco-PIX and Cisco-ASA MD5 passwords in mask-attack mode when mask > length 16
- Fixed cracking of DNSSEC (NSEC3) hashes by replacing all dots in the passwords with lengths
- Fixed cracking of Electrum Wallet Salt-Type 2 hashes
- Fixed cracking of NetNTLMv1 passwords in mask-attack mode when mask > length 16 (optimized kernels only)
- Fixed cracking of RAR3-hp hashes with pure kernel for passwords longer than 28 bytes
- Fixed cracking of VeraCrypt Streebog-512 hashes (CPU only)
- Fixed cracking raw Streebog-HMAC 256 and 512 hashes for passwords of length >= 64
- Fixed cracking raw Whirlpool hashes cracking for passwords of length >= 32
- Fixed incorrect progress-only result in a special race condition
- Fixed invalid call of mp_css_utf16le_expand()/mp_css_utf16be_expand() in slow-candidate sessions
- Fixed invalid password truncation in attack-mode 1 when the final password is longer than 32 characters
- Fixed invalid use of --hex-wordlist if encoded wordlist string is larger than length 256
- Fixed maximum password length limit which was announced as 256 but was actually 255
- Fixed out-of-boundary read in pure kernel rule engine rule 'p' when parameter was set to 2 or higher
- Fixed out-of-boundary write to decrypted[] in DPAPI masterkey file v1 kernel
- Fixed output of IKE PSK (mode 5300 and 5400) hashes to use separators in the correct position
- Fixed output password of "e" rule in pure and CPU rule engine when separator character is also the first letter
- Fixed problem with usage of hexadecimal notation (\x00-\xff) within rules
- Fixed race condition in maskfile mode by using a dedicated flag for restore execution
- Fixed some memory leaks when hashcat is shutting down due to some file error
- Fixed some memory leaks when mask-files are used in optimized mode
- Fixed --status-json to correctly escape certain characters in hashes
- Fixed the 7-Zip parser to allow the entire supported range of encrypted and decrypted data lengths
- Fixed the validation of the --brain-client-features command line argument (only values 1, 2 or 3 are allowed)

##
## Improvements
##

- Bitcoin Wallet: Be more user friendly by allowing a larger data range for ckey and public_key
- Brain: Added new parameter --brain-server-timer to specify seconds between scheduled backups
- Building: Fix for library compilation failure due to multiple defenition of sbob_xx64()
- Cracking bcrypt and Password Safe v2: Use feedback from the compute API backend to dynamically calculate optimal thread count
- Dictstat: On Windows, the st_ino attribute in the stat struct is not set, which can lead to invalid cache hits. Added the filename to the database entry.
- Documents: Added README on how to build hashcat on Cygwin, MSYS2 and WSL
- File handling: Print a truncation warning when an oversized line is detected
- My Wallet: Added additional plaintext pattern used in newer versions
- Office cracking: Support hash format with second block data for 40-bit oldoffice files (eliminates false positives)
- OpenCL Runtime: Added a warning if OpenCL runtime NEO, Beignet, POCL (v1.4 or older) or MESA is detected, and skip associated devices (override with --force)
- OpenCL Runtime: Allow the kernel to access post-48k shared memory region on CUDA. Requires both module and kernel preparation
- OpenCL Runtime: Disable OpenCL kernel cache on Apple for Intel CPU (throws CL_BUILD_PROGRAM_FAILURE for no reason)
- OpenCL Runtime: Do not run shared- or constant-memory size checks if their memory type is of type global memory (typically CPU)
- OpenCL Runtime: Improve ROCm detection and make sure to not confuse with recent AMDGPU drivers
- OpenCL Runtime: Not using amd_bytealign (amd_bitalign is fine) on AMDGPU driver drastically reduces JiT segfaults
- OpenCL Runtime: Unlocked maximum thread count for NVIDIA GPU
- OpenCL Runtime: Update unstable mode warnings for Apple and AMDGPU drivers
- OpenCL Runtime: Workaround JiT compiler error on AMDGPU driver compiling WPA-EAPOL-PBKDF2 OpenCL kernel
- OpenCL Runtime: Workaround JiT compiler error on ROCm 2.3 driver if the 'inline' keyword is used in function declaration
- OpenCL Runtime: Workaround memory allocation error on AMD driver on Windows leading to CL_MEM_OBJECT_ALLOCATION_FAILURE
- OpenCL Runtime: Removed some workarounds by calling chdir() to specific folders on startup
- Outfile: Added new system to specify the outfile format, the new --outfile-format now also supports timestamps
- Startup Checks: Improved the pidfile check: Do not just check for existing PID, but also check executable filename
- Startup Checks: Prevent the user from modifying options which are overwritten automatically in benchmark mode
- Startup Screen: Add extra warning when using --force
- Startup Screen: Add extra warning when using --keep-guessing
- Startup Screen: Provide an estimate of host memory required for the requested attack
- Status Screen: Added brain status for all compute devices
- Status Screen: Added remaining counts and changed recovered count logic
- Status Screen: Added --status-json flag for easier machine reading of hashcat status output
- Tab Completion: Allow using "make install" version of hashcat
- Tuning Database: Updated hashcat.hctune with new models and refreshed vector width values
- VeraCrypt: Added support for VeraCrypt PIM brute-force, replaced --veracrypt-pim with --veracrypt-pim-start and --veracrypt-pim-stop
- WipZip cracking: Added two byte early reject, resulting in higher cracking speed
- WPA/WPA2 cracking: In the potfile, replace password with PMK in order to detect already cracked networks across all WPA modes

##
## Technical
##

- Backend Interface: Added new options --backend-ignore-cuda and --backend-ingore-opencl to prevent CUDA and/or OpenCL API from being used
- Binary Distribution: Removed 32-bit binary executables
- Building: On macOS, switch from ar to /usr/bin/ar to improve building compatibility
- Building: Skipping Travis/Appveyor build for non-code changes
- Codebase: Cleanup of many unused rc_* variables
- Codebase: Fixed some printf() format arguments
- Codebase: Fixed some type casting to avoid truncLongCastAssignment warnings
- Codebase: Moved hc_* file functions from shared.c to filehandling.c
- Codebase: Ran through a bunch of clang-tidy checkers and updated code accordingly
- Codebase: Remove redundant calls to fclose()
- Dependencies: Updated LZMA-Headers from 18.05 to 19.00
- Dependencies: Updated OpenCL-Headers to latest version from GitHub master repository
- Hash-Mode 12500 (RAR3-hp): Allow cracking of passwords up to length 64
- Hash-mode 1460 (HMAC-SHA256 (key = $salt)): Allow up to 64 byte of salt
- Hash-Mode 1680x (WPA-PMKID) specific: Changed separator character from '*' to ':'
- Hash-Mode 8300 (DNSSEC (NSEC3)) specific: Allow empty salt
- Keep Guessing: No longer automatically activate --keep-guessing for modes 9720, 9820, 14900 and 18100
- Keep Guessing: No longer mark hashes as cracked/removed when in potfile
- Kernel Cache: Reactivate OpenCL runtime specific kernel caches
- Kernel Compile: Removed -cl-std= from all kernel build options since we're compatible to all OpenCL versions
- OpenCL Kernels: Fix OpenCL compiler warning on double precision constants
- OpenCL Kernels: Moved "gpu_decompress", "gpu_memset" and "gpu_atinit" into shared.cl in order to reduce compile time
- OpenCL Options: Removed --opencl-platforms filter in order to force backend device numbers to stay constant
- OpenCL Options: Set --spin-damp to 0 (disabled) by default. With the CUDA backend this workaround became deprecated
- Parsers: switched from strtok() to strtok_r() for thread safety
- Requirements: Add new requirement for NVIDIA GPU: CUDA Toolkit (9.0 or later)
- Requirements: Update runtime check for minimum NVIDIA driver version from 367.x to 440.64 or later
- Test Script: Switched from /bin/bash to generic /bin/sh and updated code accordingly

* changes v5.0.0 -> v5.1.0

##
## Features
##

- Added support for using --stdout in brain-client mode
- Added new option --stdin-timeout-abort, to set how long hashcat should wait for stdin input before aborting
- Added new option --kernel-threads to manually override the automatically-calculated number of threads
- Added new option --keyboard-layout-mapping to map users keyboard layout, required to crack TC/VC system boot volumes

##
## Algorithms
##

- Added pure kernels for hash-mode 11700 (Streebog-256)
- Added pure kernels for hash-mode 11800 (Streebog-512)
- Added hash-mode 11750 (HMAC-Streebog-256 (key = $pass), big-endian)
- Added hash-mode 11760 (HMAC-Streebog-256 (key = $salt), big-endian)
- Added hash-mode 11850 (HMAC-Streebog-512 (key = $pass), big-endian)
- Added hash-mode 11860 (HMAC-Streebog-512 (key = $salt), big-endian)
- Added hash-mode 13771 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 512 bit)
- Added hash-mode 13772 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 1024 bit)
- Added hash-mode 13773 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 1536 bit)
- Added hash-mode 18200 (Kerberos 5 AS-REP etype 23)
- Added hash-mode 18300 (Apple File System (APFS))
- Added Kuznyechik cipher and cascades support for VeraCrypt kernels
- Added Camellia cipher and cascades support for VeraCrypt kernels

##
## Improvements
##

- OpenCL Devices: Add support for up to 64 OpenCL devices per system
- OpenCL Platforms: Add support for up to 64 OpenCL platforms per system
- OpenCL Runtime: Use our own yielding technique for synchronizing rather than vendor specific
- Startup: Show OpenCL runtime initialization message (per device)
- xxHash: Added support for using the version provided by the OS/distribution

##
## Bugs
##

- Fixed automated calculation of brain-session when not using all hashes in the hashlist
- Fixed calculation of brain-attack if a given wordlist has zero size
- Fixed checking the length of the last token in a hash if it was given the attribute TOKEN_ATTR_FIXED_LENGTH
- Fixed endianness and invalid separator character in outfile format for hash-mode 16801 (WPA-PMKID-PMK)
- Fixed ignoring --brain-client-features configuration when brain server has attack-position information from a previous run
- Fixed invalid hardware monitor detection in benchmark mode
- Fixed invalid warnings about throttling when --hwmon-disable was used
- Fixed missing call to WSACleanup() to cleanly shutdown windows sockets system
- Fixed missing call to WSAStartup() and client indexing in order to start the brain server on Windows
- Fixed out-of-boundary read in DPAPI masterkey file v2 OpenCL kernel
- Fixed out-of-bounds write in short-term memory of the brain server
- Fixed output of --speed-only and --progress-only when fast hashes are used in combination with --slow-candidates
- Fixed selection of OpenCL devices (-d) if there's more than 32 OpenCL devices installed
- Fixed status output of progress value when -S and -l are used in combination
- Fixed thread count maximum for pure kernels in straight attack mode

##
## Technical
##

- Brain: Set --brain-client-features default from 3 to 2
- Dependencies: Added xxHash and OpenCL-Headers to deps/ in order to allow building hashcat from GitHub source release package
- Dependencies: Removed gitmodules xxHash and OpenCL-Headers
- Keymaps: Added hashcat keyboard mapping us.hckmap (can be used as template)
- Keymaps: Added hashcat keyboard mapping de.hckmap
- Hardware Monitor: Renamed --gpu-temp-abort to --hwmon-temp-abort
- Hardware Monitor: Renamed --gpu-temp-disable to --hwmon-disable
- Memory: Limit maximum host memory allocation depending on bitness
- Memory: Reduced default maximum bitmap size from 24 to 18 and give a notice to use --bitmap-max to restore
- Parameter: Rename --nvidia-spin-damp to --spin-damp (now accessible for all devices)
- Pidfile: Treat a corrupted pidfile like a not existing pidfile
- OpenCL Device: Do a real query on OpenCL local memory type instead of just assuming it
- OpenCL Runtime: Disable auto-vectorization for Intel OpenCL runtime to workaround hanging JiT since version 18.1.0.013
- Tests: Added hash-mode 11700 (Streebog-256)
- Tests: Added hash-mode 11750 (HMAC-Streebog-256 (key = $pass), big-endian)
- Tests: Added hash-mode 11760 (HMAC-Streebog-256 (key = $salt), big-endian)
- Tests: Added hash-mode 11800 (Streebog-512)
- Tests: Added hash-mode 11850 (HMAC-Streebog-512 (key = $pass), big-endian)
- Tests: Added hash-mode 11860 (HMAC-Streebog-512 (key = $salt), big-endian)
- Tests: Added hash-mode 13711 (VeraCrypt PBKDF2-HMAC-RIPEMD160 + XTS 512 bit)
- Tests: Added hash-mode 13712 (VeraCrypt PBKDF2-HMAC-RIPEMD160 + XTS 1024 bit)
- Tests: Added hash-mode 13713 (VeraCrypt PBKDF2-HMAC-RIPEMD160 + XTS 1536 bit)
- Tests: Added hash-mode 13721 (VeraCrypt PBKDF2-HMAC-SHA512 + XTS 512 bit)
- Tests: Added hash-mode 13722 (VeraCrypt PBKDF2-HMAC-SHA512 + XTS 1024 bit)
- Tests: Added hash-mode 13723 (VeraCrypt PBKDF2-HMAC-SHA512 + XTS 1536 bit)
- Tests: Added hash-mode 13731 (VeraCrypt PBKDF2-HMAC-Whirlpool + XTS 512 bit)
- Tests: Added hash-mode 13732 (VeraCrypt PBKDF2-HMAC-Whirlpool + XTS 1024 bit)
- Tests: Added hash-mode 13733 (VeraCrypt PBKDF2-HMAC-Whirlpool + XTS 1536 bit)
- Tests: Added hash-mode 13751 (VeraCrypt PBKDF2-HMAC-SHA256 + XTS 512 bit)
- Tests: Added hash-mode 13752 (VeraCrypt PBKDF2-HMAC-SHA256 + XTS 1024 bit)
- Tests: Added hash-mode 13753 (VeraCrypt PBKDF2-HMAC-SHA256 + XTS 1536 bit)
- Tests: Added hash-mode 13771 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 512 bit)
- Tests: Added hash-mode 13772 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 1024 bit)
- Tests: Added hash-mode 13773 (VeraCrypt PBKDF2-HMAC-Streebog-512 + XTS 1536 bit)
- Tests: Added VeraCrypt containers for Kuznyechik cipher and cascades
- Tests: Added VeraCrypt containers for Camellia cipher and cascades

* changes v4.2.1 -> v5.0.0

##
## Features
##

- Added new option --slow-candidates which allows hashcat to generate passwords on-host
- Added new option --brain-server to start a hashcat brain server
- Added new option --brain-client to start a hashcat brain client, automatically activates --slow-candidates
- Added new option --brain-host and --brain-port to specify ip and port of brain server, both listening and connecting
- Added new option --brain-session to override automatically calculated brain session ID
- Added new option --brain-session-whitelist to allow only explicit written session ID on brain server
- Added new option --brain-password to specify the brain server authentication password
- Added new option --brain-client-features which allows enable and disable certain features of the hashcat brain

##
## Algorithms
##

- Added hash-mode 17300 = SHA3-224
- Added hash-mode 17400 = SHA3-256
- Added hash-mode 17500 = SHA3-384
- Added hash-mode 17600 = SHA3-512
- Added hash-mode 17700 = Keccak-224
- Added hash-mode 17800 = Keccak-256
- Added hash-mode 17900 = Keccak-384
- Added hash-mode 18000 = Keccak-512
- Added hash-mode 18100 = TOTP (HMAC-SHA1)
- Removed hash-mode 5000 = SHA-3 (Keccak)

##
## Improvements
##

- Added additional hybrid "passthrough" rules, to enable variable-length append/prepend attacks
- Added a periodic check for read timeouts in stdin/pipe mode, and abort if no input was provided
- Added a tracker for salts, amplifier and iterations to the status screen
- Added option --markov-hcstat2 to make it clear that the new hcstat2 format (compressed hcstat2gen output) must be used
- Allow bitcoin master key lengths other than 96 bytes (but they must be always multiples of 16)
- Allow hashfile for -m 16800 to be used with -m 16801
- Allow keepass iteration count to be larger than 999999
- Changed algorithms using colon as separators in the hash to not use the hashconfig separator on parsing
- Do not allocate memory segments for bitmap tables if we don't need it - for example, in benchmark mode
- Got rid of OPTS_TYPE_HASH_COPY for Ansible Vault
- Improved the speed of the outfile folder scan when using many hashes/salts
- Increased the maximum size of edata2 in Kerberos 5 TGS-REP etype 23
- Make the masks parser more restrictive by rejecting a single '?' at the end of the mask (use ?? instead)
- Override --quiet and show final status screen in case --status is used
- Removed duplicate words in the dictionary file example.dict
- Updated Intel OpenCL runtime version check
- Work around some AMD OpenCL runtime segmentation faults
- Work around some padding issues with host compilers and OpenCL JiT on 32 and 64-bit systems

##
## Bugs
##

- Fixed a invalid scalar datatype return value in hc_bytealign() where it should be a vector datatype return value
- Fixed a problem with attack mode -a 7 together with stdout mode where the mask bytes were missing in the output
- Fixed a problem with tab completion where --self-test-disable incorrectly expected a further parameter/value
- Fixed a race condition in status view that lead to out-of-bound reads
- Fixed detection of unique ESSID in WPA-PMKID-* parser
- Fixed missing wordlist encoding in combinator mode
- Fixed speed/delay problem when quitting while the outfile folder is being scanned
- Fixed the ciphertext max length in Ansible Vault parser
- Fixed the tokenizer configuration in Postgres hash parser
- Fixed the byte order of digest output for hash-mode 11800 (Streebog-512)

* changes v4.2.0 -> v4.2.1

##
## Improvements
##

- Try to evaluate available OpenCL device memory and use this information instead of total available OpenCL device memory for autotune

##
## Bugs
##

- Fixed a buffer overflow in precompute_salt_md5() in case salt was longer than 64 characters

* changes v4.1.0 -> v4.2.0

##
## Algorithms
##

- Added hash-mode 16700 = FileVault 2
- Added hash-mode 16800 = WPA-PMKID-PBKDF2
- Added hash-mode 16801 = WPA-PMKID-PMK
- Added hash-mode 16900 = Ansible Vault

##
## Improvements
##

- Added JtR-compatible support for hex notation in rules engine
- Added OpenCL device utilization to the status information in machine-readable output
- Added missing NV Tesla and Titan GPU details to tuning database
- General file handling: Abort if a byte order mark (BOM) was detected in a wordlist, hashlist, maskfile or rulefile
- HCCAPX management: Use advanced hints in message_pair stored by hcxtools about endian bitness of replay counter
- OpenCL kernels: Abort session if kernel self-test fails
- OpenCL kernels: Add '-pure' prefix to kernel filenames to avoid problems caused by reusing existing hashcat installation folder
- OpenCL kernels: Removed the use of 'volatile' in inline assembly instructions where it is not needed
- OpenCL kernels: Switched array pointer types in function declarations in order to be compatible with OpenCL 2.0
- Refactored code for --progress-only and --speed-only calculation
- SIP cracking: Increased the nonce field to allow a salt of 1024 bytes
- TrueCrypt/VeraCrypt cracking: Do an entropy check on the TC/VC header on start

##
## Bugs
##

- Fixed a function declaration attribute in -m 8900 kernel leading to unusable -m 9300 which shares kernel code with -m 8900
- Fixed a miscalculation in --progress-only mode output for extremely slow kernels like -m 14800
- Fixed a missing check for errors on OpenCL devices leading to invalid removal of restore file
- Fixed a missing kernel in -m 5600 in combination with -a 3 and -O if mask is >= 16 characters
- Fixed detection of AMD_GCN version in case the rocm driver is used
- Fixed missing code section in -m 2500 and -m 2501 to crack corrupted handshakes with a LE endian bitness base
- Fixed a missing check for hashmodes using OPTS_TYPE_PT_UPPER causing the self-test to fail when using combinator- and hybrid-mode

* changes v4.0.1 -> v4.1.0

##
## Features
##

- Added option --benchmark-all to benchmark all hash-modes (not just the default selection)
- Removed option --gpu-temp-retain that tried to retain GPU temperature at X degrees celsius - please use driver-specific tools
- Removed option --powertune-enable to enable power tuning - please use driver specific tools

##
## Algorithms
##

- Added hash-mode 16000 = Tripcode
- Added hash-mode 16100 = TACACS+
- Added hash-mode 16200 = Apple Secure Notes
- Added hash-mode 16300 = Ethereum Pre-Sale Wallet, PBKDF2-SHA256
- Added hash-mode 16400 = CRAM-MD5 Dovecot
- Added hash-mode 16500 = JWT (JSON Web Token)
- Added hash-mode 16600 = Electrum Wallet (Salt-Type 1-2)

##
## Bugs
##

- Fixed a configuration setting for -m 400 in pure kernel mode which said it was capable of doing SIMD when it is not
- Fixed a hash parsing problem for 7-Zip hashes: allow a longer CRC32 data length field within the hash format
- Fixed a hash parsing problem when using --show/--left with hashes with long salts that required pure kernels
- Fixed a logic error in storing temporary progress for slow hashes, leading to invalid speeds in status view
- Fixed a mask-length check issue: return -1 in case the mask length is not within the password-length range
- Fixed a missing check for return code in case hashcat.hcstat2 was not found
- Fixed a race condition in combinator- and hybrid-mode where the same scratch buffer was used by multiple threads
- Fixed a restore issue leading to "Restore value is greater than keyspace" when mask files or wordlist folders were used
- Fixed a uninitialized value in OpenCL kernels 9720, 9820 and 10420 leading to absurd benchmark performance
- Fixed the maximum password length check in password-reassembling function
- Fixed the output of --show when $HEX[] passwords were present within the potfile

##
## Improvements
##

- OpenCL Kernels: Add a decompressing kernel and a compressing host code in order to reduce PCIe transfer time
- OpenCL Kernels: Improve performance preview accuracy in --benchmark, --speed-only and --progress-only mode
- OpenCL Kernels: Remove password length restriction of 16 for Cisco-PIX and Cisco-ASA hashes
- Terminal: Display set cost/rounds during benchmarking
- Terminal: Show [r]esume in prompt only in pause mode, and show [p]ause in prompt only in resume mode

##
## Technical
##

- Autotune: Improve autotune engine logic and synchronize results on same OpenCL devices
- Documents: Added docs/limits.txt
- Files: Copy include/ folder and its content when SHARED is set to 1 in Makefile
- Files: Switched back to relative current working directory on windows to work around problems with Unicode characters
- Hashcat Context: Fixed a memory leak in shutdown phase
- Hash Parser: Changed the way large strings are handled/truncated within the event buffer if they are too large to fit
- Hash Parser: Fixed a memory leak in shutdown phase
- Hash Parser: Fixed the use of strtok_r () calls
- OpenCL Devices: Fixed several memory leaks in shutdown phase
- OpenCL Kernels: Add general function declaration keyword (inline) and some OpenCL runtime specific exceptions for NV and CPU devices
- OpenCL Kernels: Replace variables from uXX to uXXa if used in __constant space
- OpenCL Kernels: Use a special kernel to initialize the password buffer used during autotune measurements, to reduce startup time
- OpenCL Kernels: Refactored kernel thread management from native to maximum per kernel
- OpenCL Kernels: Use three separate comparison kernels (depending on keyver) for WPA instead of one
- OpenCL Runtime: Add current timestamp to OpenCL kernel source in order to force OpenCL JiT compiler to recompile and not use the cache
- OpenCL Runtime: Enforce use of OpenCL version 1.2 to restrain OpenCL runtimes to make use of the __generic address space qualifier
- OpenCL Runtime: Updated rocm detection
- Returncode: Enforce return code 0 when the user selects --speed-only or --progress-only and no other error occurs
- Rules: Fixed some default rule-files after changing rule meaning of 'x' to 'O'
- Self Test: Skip self-test for mode 8900 - user-configurable scrypt settings are incompatible with fixed settings in the self-test hash
- Self Test: Skip self-test for mode 15700 because the settings are too high and cause startup times that are too long
- Terminal: Add workitem settings to status display (can be handy for debugging)
- Terminal: Send clear-line code to the same output stream as the message immediately following
- Timer: Switch from gettimeofday() to clock_gettime() to work around problems on cygwin
- User Options: According to getopts manpage, the last element of the option array has to be filled with zeros

* changes v4.0.0 -> v4.0.1:

##
## Improvements
##

- Changed the maximum length of the substring of a hash shown whenever the parser found a problem while parsing the hash

##
## Bugs
##

- Fixed a memory leak while parsing a wordlist
- Fixed compile of kernels on AMD systems on windows due to invalid detection of ROCm
- Fixed compile of sources using clang under MSYS2
- Fixed overlapping memory segment copy in CPU rule engine if using a specific rule function
- Fixed a parallel build problem when using the "install" Makefile target
- Fixed the version number extraction for github releases which do not including the .git directory

* changes v3.6.0 -> v4.0.0:

##
## Features
##

- Added support to crack passwords and salts up to length 256
- Added option --optimized-kernel-enable to use faster kernels but limit the maximum supported password- and salt-length
- Added self-test functionality to detect broken OpenCL runtimes on startup
- Added option --self-test-disable to disable self-test functionality on startup
- Added option --wordlist-autohex-disable to disable the automatical conversion of $HEX[] words from the word list
- Added option --example-hashes to show an example hash for each hash-mode
- Removed option --weak-hash-check (zero-length password check) to increase startup time, it also causes many Trap 6 error on macOS

##
## Algorithms
##

- Added hash-mode 2500 = WPA/WPA2 (SHA256-AES-CMAC)
- Added hash-mode 2501 = WPA/WPA2 PMK

##
## Bugs
##

- Fixed a buffer overflow in mangle_dupechar_last function
- Fixed a calculation error in get_power() leading to errors of type "BUG pw_add()!!"
- Fixed a memory problem that occured when the OpenCL folder was not found and e.g. the shared and session folder were the same
- Fixed a missing barrier() call in the RACF OpenCL kernel
- Fixed a missing salt length value in benchmark mode for SIP
- Fixed an integer overflow in hash buffer size calculation
- Fixed an integer overflow in innerloop_step and innerloop_cnt variables
- Fixed an integer overflow in masks not skipped when loaded from file
- Fixed an invalid optimization code in kernel 7700 depending on the input hash, causing the kernel to loop forever
- Fixed an invalid progress value in status view if words from the base wordlist get rejected because of length
- Fixed a parser error for mode -m 9820 = MS Office <= 2003 $3, SHA1 + RC4, collider #2
- Fixed a parser error in multiple modes not checking for return code, resulting in negative memory index writes
- Fixed a problem with changed current working directory, for instance by using --restore together with --remove
- Fixed a problem with the conversion to the $HEX[] format: convert/hexify also all passwords of the format $HEX[]
- Fixed the calculation of device_name_chksum; should be done for each iteration
- Fixed the dictstat lookup if nanoseconds are used in timestamps for the cached files
- Fixed the estimated time value whenever the value is very large and overflows
- Fixed the output of --show when used together with the collider modes -m 9710, 9810 or 10410
- Fixed the parsing of command line options. It doesn't show two times the same error about an invalid option anymore
- Fixed the parsing of DCC2 hashes by allowing the "#" character within the user name
- Fixed the parsing of descrypt hashes if the hashes do have non-standard characters within the salt
- Fixed the use of --veracrypt-pim option. It was completely ignored without showing an error
- Fixed the version number used in the restore file header

##
## Improvements
##

- Autotune: Do a pre-autotune test run to find out if kernel runtime is above some TDR limit
- Charset: Add additional DES charsets with corrected parity
- OpenCL Buffers: Do not allocate memory for amplifiers for fast hashes, it's simply not needed
- OpenCL Kernels: Improved performance of SHA-3 Kernel (keccak) by hardcoding the 0x80 stopbit
- OpenCL Kernels: Improved rule engine performance by 6% on for NVidia
- OpenCL Kernels: Move from ld.global.v4.u32 to ld.const.v4.u32 in _a3 kernels
- OpenCL Kernels: Replace bitwise swaps with rotate() versions for AMD
- OpenCL Kernels: Rewritten Keccak kernel to run fully on registers and partially reversed last round
- OpenCL Kernels: Rewritten SIP kernel from scratch
- OpenCL Kernels: Thread-count is set to hardware native count except if -w 4 is used then OpenCL maximum is used
- OpenCL Kernels: Updated default scrypt TMTO to be ideal for latest NVidia and AMD top models
- OpenCL Kernels: Vectorized tons of slow kernels to improve CPU cracking speed
- OpenCL Runtime: Improved detection for AMD and NV devices on macOS
- OpenCL Runtime: Improved performance on Intel MIC devices (Xeon PHI) on runtime level (300MH/s to 2000MH/s)
- OpenCL Runtime: Updated AMD ROCm driver version check, warn if version < 1.1
- Show cracks: Improved the performance of --show/--left if used together with --username
- Startup: Add visual indicator of active options when benchmarking
- Startup: Check and abort session if outfile and wordlist point to the same file
- Startup: Show some attack-specific optimizer constraints on start, eg: minimum and maximum support password- and salt-length
- WPA cracking: Improved nonce-error-corrections mode to use a both positive and negative corrections

##
## Technical
##

- General: Update C standard from c99 to gnu99
- Hash Parser: Improved salt-length checks for generic hash modes
- HCdict File: Renamed file from hashcat.hcdict to hashcat.hcdict2 and add header because versions are incompatible
- HCstat File: Add code to read LZMA compressed hashcat.hcstat2
- HCstat File: Add hcstat2 support to enable masks of length up to 256, also adds a filetype header
- HCstat File: Renamed file from hashcat.hcstat to hashcat.hcstat2 and add header because versions are incompatible
- HCtune File: Remove apple related GPU entries to workaround Trap 6 error
- OpenCL Kernels: Added code generator for most of the switch_* functions and replaced existing code
- OpenCL Kernels: Declared all include functions as static to reduce binary kernel cache size
- OpenCL Kernels: On AMD GPU, optimized kernels for use with AMD ROCm driver
- OpenCL Kernels: Removed some include functions that are no longer needed to reduce compile time
- OpenCL Runtime: Fall back to 64 threads default (from 256) on AMD GPU to prevent creating too many workitems
- OpenCL Runtime: Forcing OpenCL 1.2 no longer needed. Option removed from build options
- OpenCL Runtime: On AMD GPU, recommend AMD ROCm driver for Linux
- Restore: Fixed the version number used in the restore file header
- Time: added new type for time measurements hc_time_t and related functions to force the use of 64 bit times

* changes v3.5.0 -> v3.6.0:

##
## Algorithms
##

- Added hash-mode   600 = BLAKE2-512
- Added hash-mode 15200 = Blockchain, My Wallet, V2
- Added hash-mode 15300 = DPAPI masterkey file v1 and v2
- Added hash-mode 15400 = ChaCha20
- Added hash-mode 15500 = JKS Java Key Store Private Keys (SHA1)
- Added hash-mode 15600 = Ethereum Wallet, PBKDF2-HMAC-SHA256
- Added hash-mode 15700 = Ethereum Wallet, PBKDF2-SCRYPT

##
## Features
##

- 7-Zip cracking: increased max. data length to 320k and removed AES padding attack to avoid false negatives
- Dictionary cache: Show time spent on dictionary cache building at startup
- Rules: Support added for position 'p' (Nth instance of a character) in host mode (using -j or -k)
- Rules: Support added for rejection rule '_N' (reject plains of length not equal to N) in host mode
- Rules: Support added for rule 'eX'
- Wordlist encoding: Added parameters --encoding-from and --encoding-to to configure wordlist encoding handling
- Wordlist encoding: Support added for internal conversion between user-defined encodings during runtime

##
## Workarounds
##

- Workaround added for NVIDIA NVML library: If libnvidia-ml.so couldn't be loaded, try again using libnvidia-ml.so.1

##
## Improvements
##

- WPA cracking: Improved nonce-error-corrections mode to fix corrupt nonces generated on big-endian devices

##
## Bugs
##

- Fixed a condition that caused hybrid attacks using a maskfile to not select all wordlists from a wordlist folder
- Fixed a memory leak that was present when a user periodically prints hashcat status (using --status-timer)
- Fixed a missing type specifier in a function declaration of the RACF kernel

##
## Technical
##

- Building: In the binary release packages, link libiconv static for Windows binaries
- Dictstat: Structure for dictstat file changed to include --encoding-from and --encoding-to parameters
- OpenCL Runtime: Updated AMDGPU-PRO driver version check, warn if version 17.10 (known to be broken) is detected
- WPA cracking: Reduced --nonce-error-corrections default from 16 to 8 to compensate for speed drop caused by big-endian fixes

* changes v3.40 -> v3.5.0:

##
## Features
##

- WPA cracking: Added support for WPA/WPA2 handshake AP nonce automatic error correction
- WPA cracking: Added parameter --nonce-error-corrections to configure range of error correction

##
## Algorithms
##

- Added hash-mode 15100 = Juniper/NetBSD sha1crypt

##
## Improvements
##

- Abbreviate long hashes to display the Hash.Target status line within 80 characters
- Refactored internal use of esalt to sync with the number of digests instead of the number of salts
- Refactored other output to display within 80 characters without wrapping

##
## Bugs
##

- Fixed a hash validation error when trying to load Android FDE < 4.3 hashes
- Fixed a problem where --keyspace combined with custom charsets incorrectly displayed an error message
- Fixed a problem where --stdout combined with custom charsets incorrectly displayed an error message
- Fixed a problem with parsing and displaying -m 7000 = Fortigate (FortiOS) hashes
- Fixed a race condition after sessions finish, where the input-base was freed but accessed afterwards
- Fixed a typo that resulted in the minimum password length not being correctly initialized
- Fixed --outfile-format formats 11 through 15 to show the correct crack position
- Fixed --remove to apply even when all hashes are either found in the potfile or detected in weak-hash checks

##
## Technical
##

- Building: Added missing prototypes for atlassian_parse_hash function
- Dictionary Cache: Split long status line into multiple lines to stay < 80 chars
- Files: Detect and error when users try to use -r with a parameter which is not a file
- HCCAPX Parser: Added support for a special bit (bit 8) of the message_pair that indicates if replay counters match
- Parameter: Detect and error when users try to use an empty string (length 0) for parameters like --session=
- Parameter: Detect and error when users try to use non-digit input when only digits are expected
- Sessions: Improved string comparison in case user sets --session to "hashcat"
- Status View: Add rejected counter to machine-readable output
- Status View: Rename labels Input.Mode, Input.Base, ... to Guess.Mode, Guess.Base, ...
- Status View: Added a visual indicator to the status screen when checkpoint quit has been requested
- Versions: Changed version naming convention from x.yz to x.y.z

* changes v3.30 -> v3.40:

##
## Features
##

- Added support for loading hccapx files
- Added support for filtering hccapx message pairs using --hccapx-message-pair
- Added support for parsing 7-Zip hashes with LZMA/LZMA2 compression indicator set to a non-zero value
- Added support for decompressing LZMA1/LZMA2 data for -m 11600 = 7-Zip to validate the CRC
- Added support for automatic merge of LM halfes in case --show and --left is used
- Added support for showing all user names with --show and --left if --username was specified
- Added support for GPU temperature management on cygwin build

##
## Algorithms
##

- Added hash-mode  1411 = SSHA-256(Base64), LDAP {SSHA256}
- Added hash-mode  3910 = md5(md5($pass).md5($salt))
- Added hash-mode  4010 = md5($salt.md5($salt.$pass))
- Added hash-mode  4110 = md5($salt.md5($pass.$salt))
- Added hash-mode  4520 = sha1($salt.sha1($pass))
- Added hash-mode  4522 = PunBB
- Added hash-mode  7000 = Fortigate (FortiOS)
- Added hash-mode 12001 = Atlassian (PBKDF2-HMAC-SHA1)
- Added hash-mode 14600 = LUKS
- Added hash-mode 14700 = iTunes Backup < 10.0
- Added hash-mode 14800 = iTunes Backup >= 10.0
- Added hash-mode 14900 = Skip32
- Added hash-mode 15000 = FileZilla Server >= 0.9.55

##
## Workarounds
##

- Workaround added for AMDGPU-Pro OpenCL runtime: AES encrypt and decrypt Invertkey function was calculated wrong in certain cases
- Workaround added for AMDGPU-Pro OpenCL runtime: RAR3 kernel require a volatile variable to work correctly
- Workaround added for Apple OpenCL runtime: bcrypt kernel requires a volatile variable because of a compiler optimization bug
- Workaround added for Apple OpenCL runtime: LUKS kernel requires some volatile variables because of a compiler optimization bug
- Workaround added for Apple OpenCL runtime: TrueCrypt kernel requires some volatile variables because of a compiler optimization bug
- Workaround added for NVidia OpenCL runtime: RACF kernel requires EBCDIC lookup to be done on shared memory

##
## Bugs
##

- Fixed a problem within the Kerberos 5 TGS-REP (-m 13100) hash parser
- Fixed clEnqueueNDRangeKernel(): CL_UNKNOWN_ERROR caused by an invalid work-item count during weak-hash-check
- Fixed cracking of PeopleSoft Token (-m 13500) if salt length + password length is >= 128 byte
- Fixed cracking of Plaintext (-m 99999) in case MD4 was used in a previous session
- Fixed DEScrypt cracking in BF mode in case the hashlist contains more than 16 times the same salt
- Fixed duplicate detection for WPA handshakes with the same ESSID
- Fixed nvapi datatype definition for NvS32 and NvU32
- Fixed overflow in bcrypt kernel in expand_key() function
- Fixed pointer to local variable outside scope in case -j or -k is used
- Fixed pointer to local variable outside scope in case --markov-hcstat is not used
- Fixed recursion in loopback handling when session was aborted by the user
- Fixed rule 'O' (RULE_OP_MANGLE_OMIT) in host mode in case the offset + length parameter equals the length of the input word
- Fixed rule 'i' (RULE_OP_MANGLE_INSERT) in host mode in case the offset parameter equals the length of the input word
- Fixed string not null terminated inside workaround for checking drm driver path
- Fixed string not null terminated while reading maskfiles
- Fixed truncation of password after position 32 with the combinator attack
- Fixed use of option --keyspace in combination with -m 2500 (WPA)
- Fixed WPA/WPA2 cracking in case eapol frame is >= 248 byte

##
## Technical
##

- Building: Add SHARED variable to Makefile to choose if hashcat is build as static or shared binary (using libhashcat.so/hashcat.dll)
- Building: Removed compiler option -march=native as this created problems for maintainers on various distributions
- Building: Removed the use of RPATH on linker level
- Building: Replaced linking of CRT_glob.o with the use of int _dowildcard
- Commandline: Do some checks related to custom-charset options if user specifies them
- CPU Affinity: Fixed memory leak in case invalid cpu Id was specified
- Dispatcher: Fixed several memory leaks in case an OpenCL error occurs
- Events: Improved the maximum event message handling. event_log () will now also internally make sure that the message is properly terminated
- File Locking: Improved error detection on file locks
- File Reads: Fixed memory leak in case outfile or hashfile was not accessible
- File Reads: Improved error detection on file reads, especially when getting the file stats
- Files: Do several file and folder checks on startup rather than when they are actually used to avoid related error after eventual intense operations
- Hardware Management: Bring back kernel exec timeout detection for NVidia on user request
- Hardware Monitor: Fixed several memory leaks in case hash-file writing (caused by --remove) failed
- Hardware Monitor: Fixed several memory leaks in case no hardware monitor sensor is found
- Hardware Monitor: In case NVML initialization failed, do not try to initialiaze NVAPI or XNVCTRL because they both depend on NVML
- Hash Parsing: Added additional bound checks for the SIP digest authentication (MD5) parser (-m 11400)
- Hash Parsing: Make sure that all files are correctly closed whenever a hash file parsing error occurs
- Helper: Added functions to check existence, type, read- and write-permissions and rewrite sources to use them instead of stat()
- Keyfile handling: Make sure that the memory is cleanly freed whenever a VeraCrypt/TrueCrypt keyfile fails to load
- Mask Checks: Added additional memory cleanups after parsing/verifying masks
- Mask Checks: Added integer overflow detection for a keyspace of a mask provided by user
- Mask Increment: Fixed memory leak in case mask_append() fails
- OpenCL Device: Do a check on available constant memory size and abort if it's less than 64kB
- OpenCL Device Management: Fixed several memory leaks in case initialization of an OpenCL device or platform failed
- OpenCL Header: Updated CL_* errorcode to OpenCL 1.2 standard
- OpenCL Kernel: Move kernel binary buffer from heap to stack memory
- OpenCL Kernel: Refactored read_kernel_binary to load only a single kernel for a single device
- OpenCL Kernel: Remove "static" keyword from function declarations; Causes older Intel OpenCL runtimes to fail compiling
- OpenCL Kernel: Renumbered hash-mode 7600 to 4521
- OpenCL Runtime: Added a warning about using Mesa OpenCL runtime
- OpenCL Runtime: Updated AMDGPU-Pro driver version check, do warn if version 16.60 is detected which is known to be broken
- Outfile Check: Fixed a memory leak for failed outfile reads
- Restore: Add some checks on the rd->cwd variable in restore case
- Rule Engine: Fixed several memory leaks in case loading of rules failed
- Session Management: Automatically set dedicated session names for non-cracking parameters, for example: --stdout
- Session Management: Fixed several memory leaks in case profile- or install-folder setup failed
- Sessions: Move out handling of multiple instance from restore file into separate pidfile
- Status screen: Do not try to clear prompt in --quiet mode
- Tests: Fixed the timeout status code value and increased the runtime to 400 seconds
- Threads: Restored strerror as %m is unsupported by the BSDs
- Wordlists: Disable dictstat handling for hash-mode 3000 as it virtually creates words in the wordlist which is not the case for other modes
- Wordlists: Fixed memory leak in case access a file in a wordlist folder fails
- WPA: Changed format for outfile and potfile from essid:mac1:mac2 to hash:mac_ap:mac_sta:essid
- WPA: Changed format for outfile_check from essid:mac1:mac2 to hash

* changes v3.20 -> v3.30:

##
## Features
##

- Files: Use $HEX[...] in case the password includes the separater character, increases potfile reading performance
- Files: If the user specifies a folder to scan for wordlists instead of directly a wordlist, then ignore the hidden files
- Loopback: Include passwords for removed hashes present in the potfile to next loopback iteration
- New option --progress-only: Quickly provides ideal progress step size and time to process on the user hashes and selected options, then quit
- Status screen: Reenabled automatic status screen display in case of stdin used
- Truecrypt/Veracrypt: Use CRC32 to verify headers instead of fuzzy logic, greatly reduces false positives from 18:2^48 to 3:2^64
- WPA cracking: Reuse PBKDF2 intermediate keys if duplicate essid is detected

##
## Algorithms
##

- Added hash-mode 1300 = SHA-224

##
## Bugs
##

- Fixed buffer overflow in status screen display in case of long non-utf8 string
- Fixed buffer overflow in plaintext parsing code: Leading to segfault
- Fixed custom char parsing code in maskfiles in --increment mode: Custom charset wasn't used
- Fixed display screen to show input queue when using custom charset or rules
- Fixed double fclose() using AMDGPU-Pro on sysfs compatible platform: Leading to segfault
- Fixed hash-mode 11400 = SIP digest authentication (MD5): Cracking of hashes which did not include *auth* or *auth-int* was broken
- Fixed hex output of plaintext in case --outfile-format 4, 5, 6 or 7 was used
- Fixed infinite loop when using --loopback in case all hashes have been cracked
- Fixed kernel loops in --increment mode leading to slower performance
- Fixed mask length check in hybrid attack-modes: Do not include hash-mode dependant mask length checks
- Fixed parsing of hashes in case the last line did not include a linefeed character
- Fixed potfile loading to accept blank passwords
- Fixed runtime limit: No longer required so sample startup time after refactorization

##
## Workarounds
##

- Workaround added for Intel OpenCL runtime: GPU support is broken, skip the device unless user forces to enable it

##
## Technical
##

- Building: Added hashcat32.dll and hashcat64.dll makefile targets for building hashcat windows libraries
- Building: Added production flag in Makefile to disable all the GCC compiler options needed only for development
- Building: Removed access to readlink() on FreeBSD
- Building: For CYGWIN prefer to use "opencl.dll" (installed by drivers) instead of optional "cygOpenCL-1.dll"
- Events: Added new event EVENT_WEAK_HASH_ALL_CRACKED if all hashes have been cracked during weak hash check
- Hardware management: Switched matching ADL device with OpenCL device by using PCI bus, device and function
- Hardware management: Switched matching NvAPI device with OpenCL device by using PCI bus, device and function
- Hardware management: Switched matching NVML device with OpenCL device by using PCI bus, device and function
- Hardware management: Switched matching xnvctrl device with OpenCL device by using PCI bus, device and function
- Hardware management: Removed *throttled* message from NVML as this created more confusion than it helped
- Hash Parser: Improved error detection of invalid hex characters where hex character are expected
- OpenCL Runtime: Updated AMDGPU-Pro driver version check, do warn if version 16.50 is detected which is known to be broken
- OpenCL Runtime: Updated hashcat.hctune for Iris Pro GPU on macOS
- Potfile: In v3.10 already, the default potfile suffix changed but the note about was missing. The "hashcat.pot" became "hashcat.potfile"
- Potfile: Added old potfile detection, show warning message
- Returncode: Added dedicated returncode (see docs/status_codes.txt) for shutdowns caused by --runtime and checkpoint keypress
- Sanity: Added sanity check to disallow --speed-only in combination with -i
- Sanity: Added sanity check to disallow --loopback in combination with --runtime
- Threads: Replaced all calls to ctime() with ctime_r() to ensure thread safety
- Threads: Replaced all calls to strerror() with %m printf() GNU extension to ensure thread safety

* changes v3.10 -> v3.20:

The hashcat core was completely refactored to be a MT-safe library (libhashcat).
The goal was to help developers include hashcat into distributed clients or GUI frontends.
The CLI (hashcat.bin or hashcat.exe) works as before but from a technical perspective it's a library frontend.

##
## Features
##

- New option --speed-only: Quickly provides cracking speed per device based on the user hashes and selected options, then quit
- New option --keep-guessing: Continue cracking hashes even after they have been cracked (to find collisions)
- New option --restore-file-path: Manually override the path to the restore file (useful if we want all session files in the same folder)
- New option --opencl-info: Show details about OpenCL compatible devices like an embedded clinfo tool (useful for bug reports)
- Documents: Added colors for warnings (yellow) and errors (red) instead of WARNING: and ERROR: prefix
- Documents: Added hints presented to the user about optimizing performance while hashcat is running
- Hardware management: Support --gpu-temp-retain for AMDGPU-Pro driver
- Hardware management: Support --powertune-enable for AMDGPU-Pro driver
- Password candidates: Allow words of length > 31 in wordlists for -a 0 for some slow hashes if no rules are in use
- Password candidates: Do not use $HEX[] if the password candidate is a valid UTF-8 string and print out as-is
- Pause mode: Allow quit program also if in pause mode
- Pause mode: Ignore runtime limit in pause mode
- Status view: Show core-clock, memory-clock and execution time in benchmark-mode in case --machine-readable is activated
- Status view: Show temperature, coreclock, memoryclock, fanspeed and pci-lanes for devices using AMDGPU-Pro driver
- Status view: Show the current first and last password candidate test queued for execution per device (as in JtR)
- Status view: Show the current position in the queue for both base and modifier (Example: Wordlist 2/5)
- Markov statistics: Update hashcat.hcstat which is used as reference whenever the user defines a mask
- Charsets: Added lowercase ascii hex (?h) and uppercase ascii hex (?H) as predefined charsets

##
## Algorithms
##

- Added hash-mode 14000 = DES (PT = $salt, key = $pass)
- Added hash-mode 14100 = 3DES (PT = $salt, key = $pass)
- Added hash-mode 14400 = SHA1(CX)
- Added hash-mode 99999 = Plaintext
- Extended hash-mode 3200 = bcrypt: Accept signature $2b$ (February 2014)
- Improved hash-mode 8300 = DNSSEC: Additional parsing error detection

##
## Bugs
##

- Custom charset from file parsing code did not return an error if an error occured
- Fix some clSetKernelArg() size error that caused slow modes to not work anymore in -a 1 mode
- Hash-mode 11600 = (7-Zip): Depending on input hash a clEnqueueReadBuffer(): CL_INVALID_VALUE error occured
- Hash-mode 22 = Juniper Netscreen/SSG (ScreenOS): Fix salt length for -m 22 in benchmark mode
- Hash-Mode 5500 = NetNTLMv1 + ESS: Fix loading of NetNTLMv1 + SSP hash
- Hash-mode 6000 = RipeMD160: Fix typo in array index number
- If cracking a hash-mode using unicode passwords, length check of a mask was not taking into account
- If cracking a large salted hashlist the wordlist reject code was too slow to handle it, leading to 0H/s
- Null-pointer dereference in outfile-check shutdown code when using --outfile-check-dir, leading to segfault
- On startup hashcat tried to access the folder defined in INSTALL_FOLDER, leading to segfault if that folder was not existing
- Random rules generator code used invalid parameter for memory copy function (M), leading to use of invalid rule
- Sanity check for --outfile-format was broken if used in combination with --show or --left

##
## Workarounds
##

- Workaround added for AMDGPU-Pro OpenCL runtime: Failed to compile hash-mode 10700 = PDF 1.7 Level 8
- Workaround added for AMDGPU-Pro OpenCL runtime: Failed to compile hash-mode 1800 = sha512crypt
- Workaround added for NVidia OpenCL runtime: Failed to compile hash-mode 6400 = AIX {ssha256}
- Workaround added for NVidia OpenCL runtime: Failed to compile hash-mode 6800 = Lastpass + Lastpass sniffed
- Workaround added for macOS OpenCL runtime: Failed to compile hash-mode 10420 = PDF 1.1 - 1.3 (Acrobat 2 - 4)
- Workaround added for macOS OpenCL runtime: Failed to compile hash-mode 1100 = Domain Cached Credentials (DCC), MS Cache
- Workaround added for macOS OpenCL runtime: Failed to compile hash-mode 13800 = Windows 8+ phone PIN/Password
- Workaround added for pocl OpenCL runtime: Failed to compile hash-mode 5800 = Android PIN

##
## Performance
##

- Improved performance for rule-based attacks for _very_ fast hashes like MD5 and NTLM by 30% or higher
- Improved performance for DEScrypt on AMD, from 373MH/s to 525MH/s
- Improved performance for raw DES-based algorithms (like LM) on AMD, from 1.6GH/s to 12.5GH/s
- Improved performance for raw SHA256-based algorithms using meet-in-the-middle optimization, reduces 7/64 steps
- Improved performance for SAP CODVN B (BCODE) and SAP CODVN F/G (PASSCODE) due to register handling optimization, gives 3% and 25%
- Improved performance by reducing maximum number of allowed function calls per rule from 255 to 31
- Improved performance by update the selection when to use #pragma unroll depending on OpenCL runtime vendor

- Full performance comparison sheet v3.10 vs. v3.20: https://docs.google.com/spreadsheets/d/1B1S_t1Z0KsqByH3pNkYUM-RCFMu860nlfSsYEqOoqco/edit#gid=1591672380

##
## Technical
##

- Autotune: Do not run any caching rounds in autotune in DEBUG mode if -n and -u are specified
- Bash completion: Removed some v2.01 leftovers in the bash completion configuration
- Benchmark: Do not control fan speed in benchmark mode
- Benchmark: On macOS, some hash-modes can't compile because of macOS OpenCL runtime. Skip them and move on to the next
- Building: Added Makefile target "main_shared", a small how-to-use libhashcat example
- Building: Added many additional compiler warning flags in Makefile to improve static code error detection
- Building: Added missing includes for FreeBSD
- Building: Added some types for windows only in case _BASETSD_H was not set
- Building: Changed Makefile to strip symbols in the linker instead of the compiler
- Building: Defined NOMINMAX macro to prevent definition min and max macros in stdlib header files
- Building: Enabled ASLR and DEP for Windows builds
- Building: Fixed almost all errors reported by cppcheck and scan-build
- Building: On macOS, move '-framework OpenCL' from CFLAGS to LDFLAGS
- Building: On macOS, use clang as default compiler
- Building: Support building on Msys2 environment
- Building: Use .gitmodules to simplify the OpenCL header dependency handling process
- Charsets: Added DES_full.charset
- Data Types: Replaced all integer macros with enumerator types
- Data Types: Replaced all integer variables with true bool variables in case they are used as a bool
- Data Types: Replaced all string macros with static const char types
- Data Types: Replaced all uint and uint32_t to u32
- Data Types: Replaced atoi() with atoll(). Eliminates sign conversion warnings
- Documents: Added docs/credits.txt
- Documents: Added docs/team.txt
- Documents: Changed rules.txt to match v3.20 limitations
- Error handling (file handling): Fixed a couple of filepointer leaks
- Error handling (format strings): Fixed a few printf() formats, ex: use %u instead of %d for uint32_t
- Error handling (memory allocation): Removed memory allocation checks, just print to stderr instead
- Error handling (startup): Added some missing returncode checks to get_exec_path()
- Fanspeed: Check both fanpolicy and fanspeed returncode and disable retain support if any of them fail
- Fanspeed: Minimum fanspeed for retain support increased to 33%, same as NV uses as default on windows
- Fanspeed: Reset PID controler settings to what they were initially
- Fanspeed: Set fan speed to default on quit
- File handling: Do a single write test (for files to be written later) directly on startup
- File locking: Use same locking mechanism in potfile as in outfile
- Hardware management: Fixed calling conventions for ADL, NvAPI and NVML on windows
- Hardware management: Improved checking for successfull load of the NVML API
- Hardware management: In case fanspeed can not be set, disable --gpu-temp-retain automatically
- Hardware management: In case of initialization error show it only once to the user on startup
- Hardware management: Refactored all code to return returncode (0 or -1) instead of data for more easy error handling
- Hardware management: Refactored macros to real functions
- Hardware management: Removed kernel exec timeout detection on NVIDIA, should no longer occur due to autotune
- Hardware management: Replaced NVML registry functions macros with their ascii versions (Adds NVML support for XP)
- Hashlist loading: Do not load data from hashfile if hashfile changed during runtime
- Kernel cache: Fixed checksum building on oversized device version or driver version strings
- Logging: Improved variable names in hashcat.log
- Loopback: Refactored --loopback support completely, no longer a recursive function
- Memory management: Fixed some memory leaks on shutdown
- Memory management: Got rid of all global variables
- Memory management: Got rid of local_free() and global_free(), no longer required
- Memory management: Refactored all variables with HCBUFSIZ_LARGE size from stack to heap, macOS doesn't like that
- OpenCL Headers: Select OpenCL headers tagged for OpenCL 1.2, since we use -cl-std=CL1.2
- OpenCL Kernels: Added const qualifier to variable declaration of matching global memory objects
- OpenCL Kernels: Got rid of one global kernel_threads variable
- OpenCL Kernels: Moved OpenCL requirement from v1.1 to v1.2
- OpenCL Kernels: Recognize reqd_work_group_size() values from OpenCL kernels and use them in the host if possible
- OpenCL Kernels: Refactored common function append_0x01()
- OpenCL Kernels: Refactored common function append_0x02()
- OpenCL Kernels: Refactored common function append_0x80()
- OpenCL Kernels: Refactored rule function append_block1()
- OpenCL Kernels: Refactored rule function rule_op_mangle_delete_last()
- OpenCL Kernels: Refactored rule function rule_op_mangle_dupechar_last()
- OpenCL Kernels: Refactored rule function rule_op_mangle_rotate_left()
- OpenCL Kernels: Refactored rule function rule_op_mangle_rotate_right()
- OpenCL Kernels: Support mixed kernel thread count for mixed kernels in the same source file
- OpenCL Kernels: Switch from clz() to ffz() for bitsliced algorithms
- OpenCL Kernels: Using platform vendor name is better than using device vendor name for function detection
- OpenCL Runtime: Updated AMDGPU-Pro and AMD Radeon driver version check
- OpenCL Runtime: Updated Intel OpenCL runtime version check
- OpenCL Runtime: Updated NVIDIA driver version check
- Password candidates: The maximum word length in a wordlist is 31 not 32, because 0x80 will eventually be appended
- Potfile: Base logic switched; Assuming the potfile is larger than the hashlist it's better to load hashlist instead of potfile entries
- Potfile: In case all hashes were cracking using potfile abort and inform user
- Restore: Automatically unlink restore file if all hashes have been cracked
- Restore: Do not unlink restore file if restore is disabled
- Rules: Refactored macros to real functions
- Status: Added Input.Queue.Base and Input.Queue.Mod to help the user better understand this concept
- Status: Do not wait for the progress mutex to read and store speed timer
- Status: Do not show Recovered/Time when cracking < 1000 hashes
- Status: Do not show Recovered/Time as floats but as integers to reduce over-information
- Tests: Removed rules_test/ subproject: Would require total rewrite but not used in a long time
- Threads: Replaced all calls to getpwuid() with getpwuid_r() to ensure thread safety
- Threads: Replaced all calls to gmtime() with gmtime_r() to ensure thread safety
- Threads: Replaced all calls to strtok() with strtok_r() to ensure thread safety
- Wordlists: Use larger counter variable to handle larger wordlists (that is > 2^32 words)
- X11: Detect missing coolbits and added some help text for the user how to fix it

* changes v3.00 -> v3.10:

##
## Improvements
##

- Added mask display to modes 3, 6, and 7. Allows the user to see the custom character set used during the run
- Make Linux build POSIX compatible; Also allow it to actually compile on musl-libc systems
- Add support to compile on FreeBSD
- Make use of cl_context_properties[] to clCreateContext(), even if OpenCL specification allow the use of NULL, some runtimes fail without
- The Time.Estimated attribute in status display should also show --runtime limit if user set it
- Fix some strict aliasing rule violation on older compilers
- Fix some variable initializers on older compilers
- Replace DARWIN macro with compiler predefined macro __APPLE__
- Replace LINUX macro with compiler predefined macro __linux__
- Allow the use of enc_id == 0 in hash-mode 10600 and 10700 as it takes no part in the actual computation
- Get rid of exit() calls in OpenCL wrapper library with the goal to have a better control which error can be ignored under special circumstances
- Do not error and exit if an OpenCL platform has no devices, just print a warning and continue with the next platform
- Workaround for OpenCL runtimes which do not accept -I parameter in the OpenCL kernel build options even if this is an OpenCL standard option
- Workaround for OpenCL runtimes which do accept -I parameter in the OpenCL kernel build options, but do not allow quotes
- Output cracked hashes on Windows using \r\n and not \n
- Replace RegGetValue() with RegQueryValueEx() to enable Windows XP 32 bit compatibility
- Slightly increased NVidias rule-processing performance by using generic instructions instead of byte_perm()
- Add support for @ rule (RULE_OP_MANGLE_PURGECHAR) to use on GPU
- Add support for --outfile (short -o) to be used together with --stdout
- Skip periodic status output whenever --stdout is used together with stdin mode, but no outfile was specified
- Show error message if --show is used together with --outfile-autohex-disable (this is currently not supported)
- Show error message if --skip/--limit is used together with mask files or --increment
- Workaround for NVidia OpenCL runtime bug causing -m 6223 to not crack any hashes even with the correct password candidate

##
## Bugs
##

- Fixed a bug where CRAM MD5 checked salt length instead of hash length
- Fixed a bug where hashcat is suppressing --machine-readable output in the final status update
- Fixed a bug where hashcat did not check the return of realpath() and crashes uncontrolled if the path does not exist
- Fixed a bug where hashcat crashes for accessing deallocated buffer if user spams "s" shortly before hashcat shuts down
- Fixed a bug where hashcat crashes in case of a scrypt P setting > 1
- Fixed a bug where hashcat did not correctly use the newly cracked plains whenever --loopback or the induction folder was used
- Fixed a bug where hashcat did not correctly remove hashes of type WPA/WPA2 even if present in potfile
- Fixed a bug where hashcat reported an invalid password for a zero-length password in LM
- Fixed a bug where hashcat did not take into account how long it takes to prepare a session when auto-aborting with --runtime is in use
- Fixed a bug where some kernels used COMPARE_M_SIMD instead of COMPARE_S_SIMD in singlehash mode

##
## Algorithms
##

- Added new hash-mode 13900 = OpenCart

* changes v2.01 -> v3.00:

This release markes the fusion of "hashcat" and "oclHashcat" into "hashcat".
It combines all features of all hashcat projects in one project.

##
## Features
##

- Support for Apple OpenCL runtime
- Support for NVidia OpenCL runtime (replaces CUDA)
- Support for Mesa (Gallium) OpenCL runtime
- Support for pocl OpenCL runtime
- Support for Khronos' OSS OpenCL reference implementation for building
- Support to utilize OpenCL devices-types other than GPU, ex: CPU and FPGA
- Support to utilize multiple different OpenCL platforms in parallel, ex: AMD + NV
- Support to utilize multiple different OpenCL device-types in parallel, ex: GPU + CPU
- Added option --opencl-platform to select a specific OpenCL platform
- Added option --opencl-device-types select specific OpenCL device types
- Added option --opencl-vector-width to override automatically selected vector-width size
- Added makefile native compilation target
- Added makefile install and uninstall targets
- Added autotuning engine and user-configurable tuning database
- Added current engine clock, current memory clock and pci-e lanes to the status display
- Added support for --gpu-temp-retain for NVidia GPU, both Linux and Windows
- Added execution timer of the running kernel to the status display
- Added command prompt to quit at next restore checkpoint
- Added human-readable error message for the OpenCL error codes
- Added option --potfile-path to override potfile path
- Added option --veracrypt-keyfile to set Keyfiles used, can be multiple
- Added option --veracrypt-pim to set the VeraCrypt personal iterations multiplier
- Added option --machine-readable for easier parsing of output
- Added option --powertune-enable to work with NVidia devices as well, not just AMD
- Added option --stdout to print candidates instead of trying to crack a hash

##
## Algorithms
##

- Added new hash-mode   125 = ArubaOS
- Added new hash-mode 12900 = Android FDE (Samsung DEK)
- Added new hash-mode 13000 = RAR5
- Added new hash-mode 13100 = Kerberos 5 TGS-REP etype 23
- Added new hash-mode 13200 = AxCrypt
- Added new hash-mode 13300 = AxCrypt in memory SHA1
- Added new hash-mode 13400 = Keepass 1 (AES/Twofish) and Keepass 2 (AES)
- Added new hash-mode 13500 = PeopleSoft PS_TOKEN
- Added new hash-mode 13600 = WinZip
- Added new hash-mode 137** = VeraCrypt
- Added new hash-mode 13800 = Windows 8+ phone PIN/Password

##
## Performance
##

- Full Table: https://docs.google.com/spreadsheets/d/1B1S_t1Z0KsqByH3pNkYUM-RCFMu860nlfSsYEqOoqco/edit#gid=0

##
## Improvements
##

- Reordering of files to help integration into linux distributions ~/.hashcat etc
- Use a profile directory to write temporary files (session, potfile etc.)
- Workaround dependencies on AMD APP-SDK AMD ADL, NV CUDA-SDK, NV ForceWare, NVML and NVAPI; they are no longer required
- Load external libraries dynamic at runtime instead of link them static at compile-time
- Benchmark accuracy improved; Is now on par to: singlehash -a 3 -w 3 ?b?b?b?b?b?b?b
- Benchmark no longer depends on a fixed time
- Removed option --benchmark-mode, therefore support --workload-profile in benchmark-mode
- Enabled support of --machine-readable in combination with --benchmark for automated benchmark processing
- Replaced --status-automat entirely with --machine-readable to make it more consistent among benchmark and non-benchmark mode
- Extended support from 14 to 255 functions calls per rule
- Extended password length up to 32 for 7zip
- Extended salt length up to 55 for raw hash types, eg: md5($pass.$salt)
- Extended version information
- Removed some duplicate rules in T0XlCv1, d3ad0ne and dive
- Redesigned changes.txt layout
- Redesigned --help menu layout

##
## Bugs
##

- Fixed a bug in speed display: In some situation, especially with slow hashes or lots of salts, it showed a speed of 0H/s
- Fixed a bug in restore handling: user immediately aborting after restart broke the restore file
- Fixed a bug in line counter: conditional jump or move depends on an uninitialised value
- Fixed a bug in rule-engine for NVidia devices: code for left- and right-shift were switched
- Fixed a bug in dive.rule: rules were not updated after the function 'x' was renamed to 'O'
- Fixed a bug in memory allocation "OpenCL -4 error": used unitialized value in a special situation
- Fixed a bug in memory handling: heap buffer overflow
- Fixed a bug in memory handling: out of bounds access
- Fixed a bug in implementation of DCC2: forced default iteration count for hashes to 10240
- Fixed a bug in implementation of WPA/WPA2: MAC and nonce stay one their original position as in the hccap file
- Fixed a bug in implementation of GOST R 34.11-94: zero length passwords were not cracked
- Fixed a bug in implementation of BLAKE2-512 kernels: incorrect access of the esalt buffer

##
## Technical
##

- Removed deprecated GCC version check requirement
- Removed NPROCS from Makefile, let make automatically detect the optimal number of parallel threads
- Dropped all C++ overloading functions to normal function which helps support more OpenCL platforms
- Renamed functions in common.h to emphasize their purpose
- Refactorized fast-hash kernels to enable SIMD on all OpenCL platforms
- Refactorized SIMD handling: SIMD the inner-loop not the outer-loop to save registers
- Workaround missing clEnqueueFillBuffer() support in certain OpenCL runtimes
- Added amd_bytealign() support in non-AMD OpenCL runtimes
- Added amd_bfe() support in non-AMD OpenCL runtimes
- Added several macros to allow writing optimized code for the different OpenCL platforms
- Replaced typedef for bool with stdbool.h
- Added special DEBUG environment variables to the makefile
- Hashcat now acquires an exclusive lock before writing to any file
- Changed buffers to not use same buffer for both input and output at the same time with snprintf()
- Check for allocatable device-memory depending on kernel_accel amplifier before trying to allocate
- Added additional check for max. ESSID length to prevent possible crashes
- Use a GCC equivalent for __stdcall where applicable
- Synchronize maximum output line size with input line size
- Increased maximum hash line size to 0x50000
- Run weak-hash checks only in straight-attack mode, this greatly reduces code complexity
- Restrict loopback option to straight attack-mode
- Moved rules_optimize to hashcat-utils
- Stick to older libOpenCL in binary package to avoid errors like this: version `OPENCL_2.0' not found
- Tightened hash parser for several algorithms
- Updated old RC4 code in Kerberos 5
- Limited the salt length of Juniper Netscreen/SSG (ScreenOS) hashes to 10
- Updated algorithm used to automatically select an ideal --scrypt-tmto value
- Renamed option --gpu-accel to --kernel-accel
- Renamed option --gpu-loops to --kernel-loops
- Renamed option --gpu-devices to --opencl-devices
- Added inline declaration to functions from simd.c, common.c, rp.c and types_ocl.c to increase performance
- Dropped static declaration from functions in all kernel to achieve OpenCL 1.1 compatibility
- Added -cl-std=CL1.1 to all kernel build options
- Created environment variable to inform NVidia OpenCL runtime to not create its own kernel cache
- Created environment variable to inform pocl OpenCL runtime to not create its own kernel cache
- Dropped special 64-bit rotate() handling for NV, it seems that they've added it to their OpenCL runtime
- Completely get rid of HAVE_ADL, HAVE_NVML and HAVE_NVAPI in sources
- Replaced NVAPI with NVML on windows