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path: root/deps/openssl/openssl/crypto/dh/dh_check.c
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Diffstat (limited to 'deps/openssl/openssl/crypto/dh/dh_check.c')
-rw-r--r--deps/openssl/openssl/crypto/dh/dh_check.c37
1 files changed, 11 insertions, 26 deletions
diff --git a/deps/openssl/openssl/crypto/dh/dh_check.c b/deps/openssl/openssl/crypto/dh/dh_check.c
index c7e1dbf4ac..d13d8206ce 100644
--- a/deps/openssl/openssl/crypto/dh/dh_check.c
+++ b/deps/openssl/openssl/crypto/dh/dh_check.c
@@ -24,7 +24,8 @@ int DH_check_params_ex(const DH *dh)
{
int errflags = 0;
- (void)DH_check_params(dh, &errflags);
+ if (!DH_check_params(dh, &errflags))
+ return 0;
if ((errflags & DH_CHECK_P_NOT_PRIME) != 0)
DHerr(DH_F_DH_CHECK_PARAMS_EX, DH_R_CHECK_P_NOT_PRIME);
@@ -67,18 +68,14 @@ int DH_check_params(const DH *dh, int *ret)
/*-
* Check that p is a safe prime and
- * if g is 2, 3 or 5, check that it is a suitable generator
- * where
- * for 2, p mod 24 == 11
- * for 3, p mod 12 == 5
- * for 5, p mod 10 == 3 or 7
- * should hold.
+ * g is a suitable generator.
*/
int DH_check_ex(const DH *dh)
{
int errflags = 0;
- (void)DH_check(dh, &errflags);
+ if (!DH_check(dh, &errflags))
+ return 0;
if ((errflags & DH_NOT_SUITABLE_GENERATOR) != 0)
DHerr(DH_F_DH_CHECK_EX, DH_R_NOT_SUITABLE_GENERATOR);
@@ -102,10 +99,11 @@ int DH_check(const DH *dh, int *ret)
{
int ok = 0, r;
BN_CTX *ctx = NULL;
- BN_ULONG l;
BIGNUM *t1 = NULL, *t2 = NULL;
- *ret = 0;
+ if (!DH_check_params(dh, ret))
+ return 0;
+
ctx = BN_CTX_new();
if (ctx == NULL)
goto err;
@@ -139,21 +137,7 @@ int DH_check(const DH *dh, int *ret)
*ret |= DH_CHECK_INVALID_Q_VALUE;
if (dh->j && BN_cmp(dh->j, t1))
*ret |= DH_CHECK_INVALID_J_VALUE;
-
- } else if (BN_is_word(dh->g, DH_GENERATOR_2)) {
- l = BN_mod_word(dh->p, 24);
- if (l == (BN_ULONG)-1)
- goto err;
- if (l != 11)
- *ret |= DH_NOT_SUITABLE_GENERATOR;
- } else if (BN_is_word(dh->g, DH_GENERATOR_5)) {
- l = BN_mod_word(dh->p, 10);
- if (l == (BN_ULONG)-1)
- goto err;
- if ((l != 3) && (l != 7))
- *ret |= DH_NOT_SUITABLE_GENERATOR;
- } else
- *ret |= DH_UNABLE_TO_CHECK_GENERATOR;
+ }
r = BN_is_prime_ex(dh->p, DH_NUMBER_ITERATIONS_FOR_PRIME, ctx, NULL);
if (r < 0)
@@ -180,7 +164,8 @@ int DH_check_pub_key_ex(const DH *dh, const BIGNUM *pub_key)
{
int errflags = 0;
- (void)DH_check(dh, &errflags);
+ if (!DH_check_pub_key(dh, pub_key, &errflags))
+ return 0;
if ((errflags & DH_CHECK_PUBKEY_TOO_SMALL) != 0)
DHerr(DH_F_DH_CHECK_PUB_KEY_EX, DH_R_CHECK_PUBKEY_TOO_SMALL);