Constify DH-related code.

[openssl.git] / crypto / dh / dh_check.c

diff --git a/crypto/dh/dh_check.c b/crypto/dh/dh_check.c
index a2e7433b9c8dab373b74978477192674b0808fe7..f0373f7d6878a01ba12720a4f5068c888770eaad 100644 (file)
--- a/crypto/dh/dh_check.c
+++ b/crypto/dh/dh_check.c
@@ -61,7 +61,7 @@
 #include <openssl/bn.h>
 #include <openssl/dh.h>
 
-/* Check that p is a strong prime and
+/* Check that p is a safe prime and
  * if g is 2, 3 or 5, check that is is a suitable generator
  * where
  * for 2, p mod 24 == 11
@@ -70,7 +70,7 @@
  * should hold.
  */
 
-int DH_check(DH *dh, int *ret)
+int DH_check(const DH *dh, int *ret)
        {
        int ok=0;
        BN_CTX *ctx=NULL;
@@ -88,11 +88,13 @@ int DH_check(DH *dh, int *ret)
                l=BN_mod_word(dh->p,24);
                if (l != 11) *ret|=DH_NOT_SUITABLE_GENERATOR;
                }
-/*     else if (BN_is_word(dh->g,DH_GENERATOR_3))
+#if 0
+       else if (BN_is_word(dh->g,DH_GENERATOR_3))
                {
                l=BN_mod_word(dh->p,12);
                if (l != 5) *ret|=DH_NOT_SUITABLE_GENERATOR;
-               }*/
+               }
+#endif
        else if (BN_is_word(dh->g,DH_GENERATOR_5))
                {
                l=BN_mod_word(dh->p,10);
@@ -102,13 +104,13 @@ int DH_check(DH *dh, int *ret)
        else
                *ret|=DH_UNABLE_TO_CHECK_GENERATOR;
 
-       if (!BN_is_prime(dh->p,BN_prime_checks(BN_num_bits(dh->p)),NULL,ctx,NULL))
+       if (!BN_is_prime(dh->p,BN_prime_checks,NULL,ctx,NULL))
                *ret|=DH_CHECK_P_NOT_PRIME;
        else
                {
                if (!BN_rshift1(q,dh->p)) goto err;
-               if (!BN_is_prime(q,BN_prime_checks(BN_num_bits(q)),NULL,ctx,NULL))
-                       *ret|=DH_CHECK_P_NOT_STRONG_PRIME;
+               if (!BN_is_prime(q,BN_prime_checks,NULL,ctx,NULL))
+                       *ret|=DH_CHECK_P_NOT_SAFE_PRIME;
                }
        ok=1;
 err: