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path: root/openssl/crypto/dh/dh_key.c
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Diffstat (limited to 'openssl/crypto/dh/dh_key.c')
-rw-r--r--openssl/crypto/dh/dh_key.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/openssl/crypto/dh/dh_key.c b/openssl/crypto/dh/dh_key.c
index e7db44034..89a74db4e 100644
--- a/openssl/crypto/dh/dh_key.c
+++ b/openssl/crypto/dh/dh_key.c
@@ -73,11 +73,27 @@ static int dh_finish(DH *dh);
int DH_generate_key(DH *dh)
{
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode() && !(dh->meth->flags & DH_FLAG_FIPS_METHOD)
+ && !(dh->flags & DH_FLAG_NON_FIPS_ALLOW))
+ {
+ DHerr(DH_F_DH_GENERATE_KEY, DH_R_NON_FIPS_METHOD);
+ return 0;
+ }
+#endif
return dh->meth->generate_key(dh);
}
int DH_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
{
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode() && !(dh->meth->flags & DH_FLAG_FIPS_METHOD)
+ && !(dh->flags & DH_FLAG_NON_FIPS_ALLOW))
+ {
+ DHerr(DH_F_DH_COMPUTE_KEY, DH_R_NON_FIPS_METHOD);
+ return 0;
+ }
+#endif
return dh->meth->compute_key(key, pub_key, dh);
}
@@ -138,8 +154,21 @@ static int generate_key(DH *dh)
if (generate_new_key)
{
- l = dh->length ? dh->length : BN_num_bits(dh->p)-1; /* secret exponent length */
- if (!BN_rand(priv_key, l, 0, 0)) goto err;
+ if (dh->q)
+ {
+ do
+ {
+ if (!BN_rand_range(priv_key, dh->q))
+ goto err;
+ }
+ while (BN_is_zero(priv_key) || BN_is_one(priv_key));
+ }
+ else
+ {
+ /* secret exponent length */
+ l = dh->length ? dh->length : BN_num_bits(dh->p)-1;
+ if (!BN_rand(priv_key, l, 0, 0)) goto err;
+ }
}
{