diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2022-01-19 10:09:42 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion@0xa5.net> | 2023-03-06 17:15:24 +0000 |
| commit | 063549f9605c018618670ecb6c5bbbdbedd62c04 (patch) | |
| tree | 278242f135d25eaabee714bcb919318cf0afc08f /src/plugins/crypto_openssl | |
| parent | f471e3339f12049531d2ead015d82f117d8fd936 (diff) | |
crypto: remove VNET_CRYPTO_OP_FLAG_INIT_IV flag
IV requirements vary wildly with the selected mode of operation. For
example, for AES-CBC the IV must be unpredictable whereas for AES
counter mode (CTR or GCM), it can be predictable but reusing an IV with
the same key material is catastrophic.
Because of that, it is hard to generate IV in a generic way, and it is
better left to the crypto user (eg. IPsec).
Type: improvement
Change-Id: I32689c591d8c6572b8d37c4d24f175ea6132d3ec
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'src/plugins/crypto_openssl')
| -rw-r--r-- | src/plugins/crypto_openssl/main.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c index 251e75d6255..50b40c48285 100644 --- a/src/plugins/crypto_openssl/main.c +++ b/src/plugins/crypto_openssl/main.c @@ -104,9 +104,6 @@ openssl_ops_enc_cbc (vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_key_t *key = vnet_crypto_get_key (op->key_index); int out_len = 0; - if (op->flags & VNET_CRYPTO_OP_FLAG_INIT_IV) - RAND_bytes (op->iv, iv_len); - EVP_EncryptInit_ex (ctx, cipher, NULL, key->data, op->iv); if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS) @@ -215,9 +212,6 @@ openssl_ops_enc_aead (vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_key_t *key = vnet_crypto_get_key (op->key_index); int len = 0; - if (op->flags & VNET_CRYPTO_OP_FLAG_INIT_IV) - RAND_bytes (op->iv, 8); - EVP_EncryptInit_ex (ctx, cipher, 0, 0, 0); if (is_gcm) EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, NULL); |