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Check rng return value when generating DH secrets and primes in gmp plugin

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This commit is contained in:
Tobias Brunner
2012-07-16 14:53:35 +02:00
committed by Martin Willi
parent e93bb353d5
commit 5025135f70
3 changed files with 19 additions and 13 deletions
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src/libstrongswan/plugins/gmp/gmp_rsa_private_key.c
+6 -1
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@@ -149,7 +149,12 @@ static status_t compute_prime(private_gmp_rsa_private_key_t *this,
mpz_init(*prime);
do
{
rng->allocate_bytes(rng, prime_size, &random_bytes);
if (!rng->allocate_bytes(rng, prime_size, &random_bytes))
{
DBG1(DBG_LIB, "failed to allocate random prime");
rng->destroy(rng);
return FAILED;
}
/* make sure the two most significant bits are set */
random_bytes.ptr[0] = random_bytes.ptr[0] | 0xC0;