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-rw-r--r--crypto/evp/evp.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/evp/evp.h b/crypto/evp/evp.h
index 2bfeb85e7d..157de07b04 100644
--- a/crypto/evp/evp.h
+++ b/crypto/evp/evp.h
@@ -361,6 +361,7 @@ struct evp_cipher_st
* as finalisation.
*/
#define EVP_CIPH_FLAG_CUSTOM_CIPHER 0x100000
+#define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000
/* ctrl() values */
@@ -383,6 +384,13 @@ struct evp_cipher_st
#define EVP_CTRL_CCM_SET_TAG EVP_CTRL_GCM_SET_TAG
#define EVP_CTRL_CCM_SET_L 0x14
#define EVP_CTRL_CCM_SET_MSGLEN 0x15
+/* AEAD cipher deduces payload length and returns number of bytes
+ * required to store MAC and eventual padding. Subsequent call to
+ * EVP_Cipher even appends/verifies MAC.
+ */
+#define EVP_CTRL_AEAD_TLS1_AAD 0x16
+/* Used by composite AEAD ciphers, no-op in GCM, CCM... */
+#define EVP_CTRL_AEAD_SET_MAC_KEY 0x17
typedef struct evp_cipher_info_st
{