1 /* $OpenBSD: fe25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ 2 3 /* 4 * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, 5 * Peter Schwabe, Bo-Yin Yang. 6 * Copied from supercop-20130419/crypto_sign/ed25519/ref/fe25519.h 7 */ 8 9 #ifndef FE25519_H 10 #define FE25519_H 11 12 #define fe25519 crypto_sign_ed25519_ref_fe25519 13 #define fe25519_freeze crypto_sign_ed25519_ref_fe25519_freeze 14 #define fe25519_unpack crypto_sign_ed25519_ref_fe25519_unpack 15 #define fe25519_pack crypto_sign_ed25519_ref_fe25519_pack 16 #define fe25519_iszero crypto_sign_ed25519_ref_fe25519_iszero 17 #define fe25519_iseq_vartime crypto_sign_ed25519_ref_fe25519_iseq_vartime 18 #define fe25519_cmov crypto_sign_ed25519_ref_fe25519_cmov 19 #define fe25519_setone crypto_sign_ed25519_ref_fe25519_setone 20 #define fe25519_setzero crypto_sign_ed25519_ref_fe25519_setzero 21 #define fe25519_neg crypto_sign_ed25519_ref_fe25519_neg 22 #define fe25519_getparity crypto_sign_ed25519_ref_fe25519_getparity 23 #define fe25519_add crypto_sign_ed25519_ref_fe25519_add 24 #define fe25519_sub crypto_sign_ed25519_ref_fe25519_sub 25 #define fe25519_mul crypto_sign_ed25519_ref_fe25519_mul 26 #define fe25519_square crypto_sign_ed25519_ref_fe25519_square 27 #define fe25519_invert crypto_sign_ed25519_ref_fe25519_invert 28 #define fe25519_pow2523 crypto_sign_ed25519_ref_fe25519_pow2523 29 30 typedef struct 31 { 32 uint32_t v[32]; 33 } 34 fe25519; 35 36 void fe25519_freeze(fe25519 *r); 37 38 void fe25519_unpack(fe25519 *r, const unsigned char x[32]); 39 40 void fe25519_pack(unsigned char r[32], const fe25519 *x); 41 42 int fe25519_iszero(const fe25519 *x); 43 44 int fe25519_iseq_vartime(const fe25519 *x, const fe25519 *y); 45 46 void fe25519_cmov(fe25519 *r, const fe25519 *x, unsigned char b); 47 48 void fe25519_setone(fe25519 *r); 49 50 void fe25519_setzero(fe25519 *r); 51 52 void fe25519_neg(fe25519 *r, const fe25519 *x); 53 54 unsigned char fe25519_getparity(const fe25519 *x); 55 56 void fe25519_add(fe25519 *r, const fe25519 *x, const fe25519 *y); 57 58 void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y); 59 60 void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y); 61 62 void fe25519_square(fe25519 *r, const fe25519 *x); 63 64 void fe25519_invert(fe25519 *r, const fe25519 *x); 65 66 void fe25519_pow2523(fe25519 *r, const fe25519 *x); 67 68 #endif 69