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42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#ifndef _INC_ECC_SECP256K1_H
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#define _INC_ECC_SECP256K1_H
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// y^2 = x^3 + ax + b with a = 0 and b = 7 => y^2 = x^3 + 7:
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#define SECP256K1_B 7
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#define SECP256K1_P0 0xfffffc2f
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#define SECP256K1_P1 0xfffffffe
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#define SECP256K1_P2 0xffffffff
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#define SECP256K1_P3 0xffffffff
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#define SECP256K1_P4 0xffffffff
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#define SECP256K1_P5 0xffffffff
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#define SECP256K1_P6 0xffffffff
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#define SECP256K1_P7 0xffffffff
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#define SECP256K1_N0 0xd0364141
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#define SECP256K1_N1 0xbfd25e8c
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#define SECP256K1_N2 0xaf48a03b
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#define SECP256K1_N3 0xbaaedce6
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#define SECP256K1_N4 0xfffffffe
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#define SECP256K1_N5 0xffffffff
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#define SECP256K1_N6 0xffffffff
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#define SECP256K1_N7 0xffffffff
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typedef struct secp256k1
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{
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u32 xy[96]; // pre-computed points: (x1,y1,-y1),(x3,y3,-y3),(x5,y5,-y5),(x7,y7,-y7)
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} secp256k1_t;
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DECLSPEC u32 parse_public (secp256k1_t *r, const u32 *k);
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DECLSPEC void point_mul (u32 *r, const u32 *k, GLOBAL_AS const secp256k1_t *tmps);
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#endif // _INC_ECC_SECP256K1_H
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