crypto/openssl: support AES-CCM

[dpdk.git] / lib / librte_cryptodev / rte_crypto_sym.h

diff --git a/lib/librte_cryptodev/rte_crypto_sym.h b/lib/librte_cryptodev/rte_crypto_sym.h
index 5f859ec..0a0ea59 100644 (file)
--- a/lib/librte_cryptodev/rte_crypto_sym.h
+++ b/lib/librte_cryptodev/rte_crypto_sym.h
@@ -160,9 +160,6 @@ struct rte_crypto_cipher_xform {
         * Cipher key length is in bytes. For AES it can be 128 bits (16 bytes),
         * 192 bits (24 bytes) or 256 bits (32 bytes).
         *
-        * For the CCM mode of operation, the only supported key length is 128
-        * bits (16 bytes).
-        *
         * For the RTE_CRYPTO_CIPHER_AES_F8 mode of operation, key.length
         * should be set to the combined length of the encryption key and the
         * keymask. Since the keymask and the encryption key are the same size,
@@ -429,7 +426,11 @@ struct rte_crypto_aead_xform {
        uint16_t digest_length;
 
        uint16_t aad_length;
-       /**< The length of the additional authenticated data (AAD) in bytes. */
+       /**< The length of the additional authenticated data (AAD) in bytes.
+        * For CCM mode, this is the length of the actual AAD, even though
+        * it is required to reserve 18 bytes before the AAD and padding
+        * at the end of it, so a multiple of 16 bytes is allocated.
+        */
 };
 
 /** Crypto transformation types */