diff options
Diffstat (limited to 'libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c')
| -rw-r--r-- | libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c b/libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c index 4b11392..5834865 100644 --- a/libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c +++ b/libtomcrypt/src/pk/ecc/ltc_ecc_mulmod.c @@ -5,8 +5,6 @@ * * The library is free for all purposes without any express * guarantee it works. - * - * Tom St Denis, tomstdenis@gmail.com, http://libtom.org */ /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b @@ -19,7 +17,7 @@ /** @file ltc_ecc_mulmod.c ECC Crypto, Tom St Denis -*/ +*/ #ifdef LTC_MECC #ifndef LTC_ECC_TIMING_RESISTANT @@ -28,7 +26,7 @@ #define WINSIZE 4 /** - Perform a point multiplication + Perform a point multiplication @param k The scalar to multiply by @param G The base point @param R [out] Destination for kG @@ -41,7 +39,7 @@ int ltc_ecc_mulmod(void *k, ecc_point *G, ecc_point *R, void *modulus, int map) ecc_point *tG, *M[8]; int i, j, err; void *mu, *mp; - unsigned long buf; + ltc_mp_digit buf; int first, bitbuf, bitcpy, bitcnt, mode, digidx; LTC_ARGCHK(k != NULL); @@ -62,7 +60,7 @@ int ltc_ecc_mulmod(void *k, ecc_point *G, ecc_point *R, void *modulus, int map) mp_clear(mu); return err; } - + /* alloc ram for window temps */ for (i = 0; i < 8; i++) { M[i] = ltc_ecc_new_point(); @@ -85,14 +83,14 @@ int ltc_ecc_mulmod(void *k, ecc_point *G, ecc_point *R, void *modulus, int map) if ((err = mp_copy(G->x, tG->x)) != CRYPT_OK) { goto done; } if ((err = mp_copy(G->y, tG->y)) != CRYPT_OK) { goto done; } if ((err = mp_copy(G->z, tG->z)) != CRYPT_OK) { goto done; } - } else { + } else { if ((err = mp_mulmod(G->x, mu, modulus, tG->x)) != CRYPT_OK) { goto done; } if ((err = mp_mulmod(G->y, mu, modulus, tG->y)) != CRYPT_OK) { goto done; } if ((err = mp_mulmod(G->z, mu, modulus, tG->z)) != CRYPT_OK) { goto done; } } mp_clear(mu); mu = NULL; - + /* calc the M tab, which holds kG for k==8..15 */ /* M[0] == 8G */ if ((err = ltc_mp.ecc_ptdbl(tG, M[0], modulus, mp)) != CRYPT_OK) { goto done; } @@ -217,6 +215,6 @@ done: #endif -/* $Source$ */ -/* $Revision$ */ -/* $Date$ */ +/* ref: $Format:%D$ */ +/* git commit: $Format:%H$ */ +/* commit time: $Format:%ai$ */ |