dh.c, rsa.c: use `mpz_powm_sec' for modexps.

[secnet] / rsa.c

diff --git a/rsa.c b/rsa.c
index 51a382eaec66ae177064beca8e66f014692ab8c4..068cf41dfc13dfb94a35ec1656799ce0cdbd96c4 100644 (file)
--- a/rsa.c
+++ b/rsa.c
@@ -148,8 +148,8 @@ static string_t rsa_sign(void *sst, uint8_t *data, int32_t datalen)
     mpz_init(&u);
     mpz_init(&v);
 
     mpz_init(&u);
     mpz_init(&v);
 

-    mpz_powm(&u, &a, &st->dp, &st->p);
-    mpz_powm(&v, &a, &st->dq, &st->q);
+    mpz_powm_sec(&u, &a, &st->dp, &st->p);
+    mpz_powm_sec(&v, &a, &st->dq, &st->q);

     mpz_sub(&tmp, &u, &v);
     mpz_mul(&tmp2, &tmp, &st->w);
     mpz_add(&tmp, &tmp2, &v);
     mpz_sub(&tmp, &u, &v);
     mpz_mul(&tmp2, &tmp, &st->w);
     mpz_add(&tmp, &tmp2, &v);