diff options
Diffstat (limited to 'libtommath/bn_fast_mp_invmod.c')
| -rw-r--r-- | libtommath/bn_fast_mp_invmod.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/libtommath/bn_fast_mp_invmod.c b/libtommath/bn_fast_mp_invmod.c index fafd9dc..aa41098 100644 --- a/libtommath/bn_fast_mp_invmod.c +++ b/libtommath/bn_fast_mp_invmod.c @@ -1,4 +1,4 @@ -#include <tommath.h> +#include <tommath_private.h> #ifdef BN_FAST_MP_INVMOD_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * @@ -12,7 +12,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com + * Tom St Denis, tstdenis82@gmail.com, http://libtom.org */ /* computes the modular inverse via binary extended euclidean algorithm, @@ -27,7 +27,7 @@ int fast_mp_invmod (mp_int * a, mp_int * b, mp_int * c) int res, neg; /* 2. [modified] b must be odd */ - if (mp_iseven (b) == 1) { + if (mp_iseven (b) == MP_YES) { return MP_VAL; } @@ -57,13 +57,13 @@ int fast_mp_invmod (mp_int * a, mp_int * b, mp_int * c) top: /* 4. while u is even do */ - while (mp_iseven (&u) == 1) { + while (mp_iseven (&u) == MP_YES) { /* 4.1 u = u/2 */ if ((res = mp_div_2 (&u, &u)) != MP_OKAY) { goto LBL_ERR; } /* 4.2 if B is odd then */ - if (mp_isodd (&B) == 1) { + if (mp_isodd (&B) == MP_YES) { if ((res = mp_sub (&B, &x, &B)) != MP_OKAY) { goto LBL_ERR; } @@ -75,13 +75,13 @@ top: } /* 5. while v is even do */ - while (mp_iseven (&v) == 1) { + while (mp_iseven (&v) == MP_YES) { /* 5.1 v = v/2 */ if ((res = mp_div_2 (&v, &v)) != MP_OKAY) { goto LBL_ERR; } /* 5.2 if D is odd then */ - if (mp_isodd (&D) == 1) { + if (mp_isodd (&D) == MP_YES) { /* D = (D-x)/2 */ if ((res = mp_sub (&D, &x, &D)) != MP_OKAY) { goto LBL_ERR; @@ -115,7 +115,7 @@ top: } /* if not zero goto step 4 */ - if (mp_iszero (&u) == 0) { + if (mp_iszero (&u) == MP_NO) { goto top; } @@ -142,3 +142,7 @@ LBL_ERR:mp_clear_multi (&x, &y, &u, &v, &B, &D, NULL); return res; } #endif + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */ |