More BN_mod_... functions.

[openssl.git] / crypto / bn / bn_mont2.c

diff --git a/crypto/bn/bn_mont2.c b/crypto/bn/bn_mont2.c
index 871282400c65e89995b1a404fb2b50c2c3e945be..bd4c01f6cbaf39ec0264b912a4aee0ec14d41f04 100644 (file)
--- a/crypto/bn/bn_mont2.c
+++ b/crypto/bn/bn_mont2.c
@@ -277,98 +277,3 @@ err:
        ctx->tos -= 2;
        return 0;
 }
        ctx->tos -= 2;
        return 0;
 }

-
-int BN_mont_mod_add(BIGNUM *r, BIGNUM *x, BIGNUM *y, BN_MONTGOMERY *mont)
-{
-       assert(r != NULL && x != NULL  && y != NULL && mont != NULL);
-       assert(mont->p != NULL);
-       assert(BN_cmp(x, mont->p) < 0);
-       assert(BN_cmp(y, mont->p) < 0);
-       assert(!x->neg);
-       assert(!y->neg);
-
-       if (!BN_add(r, x, y)) return 0;
-       if (BN_cmp(r, mont->p) >= 0) 
-       {
-               if (!BN_sub(r, r, mont->p)) return 0;
-       }
-
-       return 1;
-}
-
-
-int BN_mont_mod_sub(BIGNUM *r, BIGNUM *x, BIGNUM *y, BN_MONTGOMERY *mont)
-{
-       assert(r != NULL && x != NULL  && y != NULL && mont != NULL);
-       assert(mont->p != NULL);
-       assert(BN_cmp(x, mont->p) < 0);
-       assert(BN_cmp(y, mont->p) < 0);
-       assert(!x->neg);
-       assert(!y->neg);
-
-       if (!BN_sub(r, x, y)) return 0;
-       if (r->neg) 
-       {
-               if (!BN_add(r, r, mont->p)) return 0;
-       }
-
-       return 1;
-}
-
-int BN_mont_mod_lshift1(BIGNUM *r, BIGNUM *x, BN_MONTGOMERY *mont)
-{
-       assert(r != NULL && x != NULL && mont != NULL);
-       assert(mont->p != NULL);
-       assert(BN_cmp(x, mont->p) < 0);
-       assert(!x->neg);
-
-       if (!BN_lshift1(r, x)) return 0;
-
-       if (BN_cmp(r, mont->p) >= 0) 
-       {
-               if (!BN_sub(r, r, mont->p)) return 0;
-       }
-
-       return 1;
-}
-
-int BN_mont_mod_lshift(BIGNUM *r, BIGNUM *x, int n, BN_MONTGOMERY *mont)
-{
-       int sh_nb;
-
-       assert(r != NULL && x != NULL && mont != NULL);
-       assert(mont->p != NULL);
-       assert(BN_cmp(x, mont->p) < 0);
-       assert(!x->neg);
-       assert(n > 0);
-
-       if (r != x)
-       {
-               if (BN_copy(r, x) == NULL) return 0;
-       }
-
-       while (n)
-       {
-               sh_nb = BN_num_bits(mont->p) - BN_num_bits(r);
-               if (sh_nb > n) sh_nb = n;
-
-               if (sh_nb)
-               {
-                       if(!BN_lshift(r, r, sh_nb)) return 0;
-               }
-               else 
-               {
-                       sh_nb = 1;
-                       if (!BN_lshift1(r, r)) return 0;
-               }
-
-               if (BN_cmp(r, mont->p) >= 0) 
-               {
-                       if (!BN_sub(r, r, mont->p)) return 0;
-               }
-
-               n -= sh_nb;
-       }
-
-       return 1;
-}