diff options
Diffstat (limited to 'crypto/rand/md_rand.c')
| -rw-r--r-- | crypto/rand/md_rand.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/crypto/rand/md_rand.c b/crypto/rand/md_rand.c index 1e3bcb9bc4..aee1c30b0a 100644 --- a/crypto/rand/md_rand.c +++ b/crypto/rand/md_rand.c @@ -198,6 +198,9 @@ static void ssleay_rand_add(const void *buf, int num, double add) EVP_MD_CTX m; int do_not_lock; + if (!num) + return; + /* * (Based on the rand(3) manpage) * @@ -380,8 +383,11 @@ static int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo) * are fed into the hash function and the results are kept in the * global 'md'. */ - - CRYPTO_w_lock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + /* NB: in FIPS mode we are already under a lock */ + if (!FIPS_mode()) +#endif + CRYPTO_w_lock(CRYPTO_LOCK_RAND); /* prevent ssleay_rand_bytes() from trying to obtain the lock again */ CRYPTO_w_lock(CRYPTO_LOCK_RAND2); @@ -460,7 +466,10 @@ static int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo) /* before unlocking, we must clear 'crypto_lock_rand' */ crypto_lock_rand = 0; - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_RAND); while (num > 0) { @@ -512,10 +521,16 @@ static int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo) MD_Init(&m); MD_Update(&m,(unsigned char *)&(md_c[0]),sizeof(md_c)); MD_Update(&m,local_md,MD_DIGEST_LENGTH); - CRYPTO_w_lock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_lock(CRYPTO_LOCK_RAND); MD_Update(&m,md,MD_DIGEST_LENGTH); MD_Final(&m,md); - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_RAND); EVP_MD_CTX_cleanup(&m); if (ok) |