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Diffstat (limited to 'src/libstrongswan/plugins/gcrypt/gcrypt_dh.c')
-rw-r--r--src/libstrongswan/plugins/gcrypt/gcrypt_dh.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libstrongswan/plugins/gcrypt/gcrypt_dh.c b/src/libstrongswan/plugins/gcrypt/gcrypt_dh.c
index 6c4665da2..0efd3ba16 100644
--- a/src/libstrongswan/plugins/gcrypt/gcrypt_dh.c
+++ b/src/libstrongswan/plugins/gcrypt/gcrypt_dh.c
@@ -208,9 +208,8 @@ gcrypt_dh_t *create_generic(diffie_hellman_group_t group, size_t exp_len,
}
rng = lib->crypto->create_rng(lib->crypto, RNG_STRONG);
- if (rng)
+ if (rng && rng->allocate_bytes(rng, exp_len, &random))
{ /* prefer external randomizer */
- rng->allocate_bytes(rng, exp_len, &random);
rng->destroy(rng);
err = gcry_mpi_scan(&this->xa, GCRYMPI_FMT_USG,
random.ptr, random.len, NULL);
@@ -226,6 +225,7 @@ gcrypt_dh_t *create_generic(diffie_hellman_group_t group, size_t exp_len,
}
else
{ /* fallback to gcrypt internal randomizer, shouldn't ever happen */
+ DESTROY_IF(rng);
this->xa = gcry_mpi_new(exp_len * 8);
gcry_mpi_randomize(this->xa, exp_len * 8, GCRY_STRONG_RANDOM);
}