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authorDamjan Marion <damarion@cisco.com>2019-04-25 18:28:31 +0200
committerFlorin Coras <florin.coras@gmail.com>2019-04-26 14:13:00 +0000
commitd97918ec678c4086001840e7263ba9ac3504ce24 (patch)
treeb490f0318dc8bae6b7d8f90f789c416414bf0b17 /src/plugins/crypto_openssl
parentaaed170828dfdb3d62295b76fd617f794dc76b3f (diff)
crypto, ipsec: change GCM IV handling
- nonce construction out of salt and iv is ipsec specific so it should be handled in ipsec code - fixes GCM unit tests - GCM IV is constructed out of simple counter, per RFC4106 section 3.1 Change-Id: Ib7712cc9612830daa737f5171d8384f1d361bb61 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/crypto_openssl')
-rw-r--r--src/plugins/crypto_openssl/main.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c
index eaa16ceb2d8..0560f31a00a 100644
--- a/src/plugins/crypto_openssl/main.c
+++ b/src/plugins/crypto_openssl/main.c
@@ -118,18 +118,14 @@ openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
{
vnet_crypto_op_t *op = ops[i];
vnet_crypto_key_t *key = vnet_crypto_get_key (op->key_index);
- u32 nonce[3];
int len;
if (op->flags & VNET_CRYPTO_OP_FLAG_INIT_IV)
RAND_bytes (op->iv, 8);
- nonce[0] = op->salt;
- clib_memcpy_fast (nonce + 1, op->iv, 8);
-
EVP_EncryptInit_ex (ctx, cipher, 0, 0, 0);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, NULL);
- EVP_EncryptInit_ex (ctx, 0, 0, key->data, (u8 *) nonce);
+ EVP_EncryptInit_ex (ctx, 0, 0, key->data, op->iv);
if (op->aad_len)
EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len);
EVP_EncryptUpdate (ctx, op->dst, &len, op->src, op->len);