make depend

[oweals/openssl.git] / crypto / dsa / dsa_key.c

diff --git a/crypto/dsa/dsa_key.c b/crypto/dsa/dsa_key.c
index 8427b77970dafa066bdc5ee810380013423fb54a..9cf669b921ac647b3a286b620f473ec4cbc59c2f 100644 (file)
--- a/crypto/dsa/dsa_key.c
+++ b/crypto/dsa/dsa_key.c
@@ -64,12 +64,28 @@
 #include <openssl/dsa.h>
 #include <openssl/rand.h>
 
+#ifdef OPENSSL_FIPS
+#include <openssl/fips.h>
+#endif
+
 static int dsa_builtin_keygen(DSA *dsa);
 
 int DSA_generate_key(DSA *dsa)
        {
+#ifdef OPENSSL_FIPS
+       if (FIPS_mode() && !(dsa->meth->flags & DSA_FLAG_FIPS_METHOD)
+                       && !(dsa->flags & DSA_FLAG_NON_FIPS_ALLOW))
+               {
+               DSAerr(DSA_F_DSA_GENERATE_KEY, DSA_R_NON_FIPS_DSA_METHOD);
+               return 0;
+               }
+#endif
        if(dsa->meth->dsa_keygen)
                return dsa->meth->dsa_keygen(dsa);
+#ifdef OPENSSL_FIPS
+       if (FIPS_mode())
+               return FIPS_dsa_generate_key(dsa);
+#endif
        return dsa_builtin_keygen(dsa);
        }
 
@@ -98,8 +114,22 @@ static int dsa_builtin_keygen(DSA *dsa)
                }
        else
                pub_key=dsa->pub_key;
+       
+       {
+               BIGNUM local_prk;
+               BIGNUM *prk;
 
-       if (!BN_mod_exp(pub_key,dsa->g,priv_key,dsa->p,ctx)) goto err;
+               if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0)
+                       {
+                       BN_init(&local_prk);
+                       prk = &local_prk;
+                       BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
+                       }
+               else
+                       prk = priv_key;
+
+               if (!BN_mod_exp(pub_key,dsa->g,prk,dsa->p,ctx)) goto err;
+       }
 
        dsa->priv_key=priv_key;
        dsa->pub_key=pub_key;