From: Andy Polyakov <appro@openssl.org>
Date: Mon, 11 Jul 2011 13:54:53 +0000 (+0000)
Subject: evp.h: add flag to distinguish AEAD ciphers and pair of control codes...
X-Git-Tag: OpenSSL-fips-2_0-rc1~263
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a355cf9bf528d44344694fbb3ebb5a9f3fa10a75;p=oweals%2Fopenssl.git

evp.h: add flag to distinguish AEAD ciphers and pair of control codes...
---

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
 	{