Patch containing TLS implementation for GOST 2012

This patch contains the necessary changes to provide GOST 2012
ciphersuites in TLS. It requires the use of an external GOST 2012 engine.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

1 files changed, 54 insertions, 11 deletions

diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c
index fe30ab47a1..47f5e0f130 100644
--- a/ssl/ssl_ciph.c
+++ b/ssl/ssl_ciph.c
@@ -168,7 +168,8 @@
 #define SSL_ENC_AES256CCM_IDX   15
 #define SSL_ENC_AES128CCM8_IDX  16
 #define SSL_ENC_AES256CCM8_IDX  17
-#define SSL_ENC_NUM_IDX         18
+#define SSL_ENC_GOST8912_IDX    18
+#define SSL_ENC_NUM_IDX         19
 
 /* NB: make sure indices in these tables match values above */
 
@@ -196,7 +197,8 @@ static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = {
     {SSL_AES128CCM, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM_IDX 14 */
     {SSL_AES256CCM, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM_IDX 15 */
     {SSL_AES128CCM8, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM8_IDX 16 */
-    {SSL_AES256CCM8, NID_aes_256_ccm} /* SSL_ENC_AES256CCM8_IDX 17 */
+    {SSL_AES256CCM8, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM8_IDX 17 */
+    {SSL_eGOST2814789CNT12, NID_gost89_cnt_12}, /* SSL_ENC_GOST8912_IDX */
 };
 
 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = {
@@ -216,6 +218,9 @@ static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
 #define SSL_MD_GOST89MAC_IDX 3
 #define SSL_MD_SHA256_IDX 4
 #define SSL_MD_SHA384_IDX 5
+#define SSL_MD_GOST12_256_IDX  6
+#define SSL_MD_GOST89MAC12_IDX 7
+#define SSL_MD_GOST12_512_IDX  8
 /*
  * Constant SSL_MAX_DIGEST equal to size of digests array should be defined
  * in the ssl_locl.h
@@ -230,11 +235,14 @@ static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = {
     {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */
     {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */
     {SSL_SHA256, NID_sha256},   /* SSL_MD_SHA256_IDX 4 */
-    {SSL_SHA384, NID_sha384}    /* SSL_MD_SHA384_IDX 5 */
+    {SSL_SHA384, NID_sha384},   /* SSL_MD_SHA384_IDX 5 */
+    {SSL_GOST12_256, NID_id_GostR3411_2012_256},  /* SSL_MD_GOST12_256_IDX 6 */
+    {SSL_GOST89MAC12, NID_gost_mac_12},           /* SSL_MD_GOST89MAC12_IDX 7 */
+    {SSL_GOST12_512, NID_id_GostR3411_2012_512}   /* SSL_MD_GOST12_512_IDX 8 */
 };
 
 static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = {
-    NULL, NULL, NULL, NULL, NULL, NULL
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
 };
 
 /* Utility function for table lookup */
@@ -258,18 +266,23 @@ static int ssl_cipher_info_find(const ssl_cipher_table * table,
  * found
  */
 static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = {
+    /* MD5, SHA, GOST94, MAC89 */
     EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
-    EVP_PKEY_HMAC, EVP_PKEY_HMAC
+    /* SHA256, SHA384, GOST2012_256, MAC89-12 */
+    EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
+    /* GOST2012_512 */
+    EVP_PKEY_HMAC,
 };
 
 static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = {
-    0, 0, 0, 0, 0, 0
+    0, 0, 0, 0, 0, 0, 0, 0, 0
 };
 
 static const int ssl_handshake_digest_flag[SSL_MD_NUM_IDX] = {
     SSL_HANDSHAKE_MAC_MD5, SSL_HANDSHAKE_MAC_SHA,
     SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
-    SSL_HANDSHAKE_MAC_SHA384
+    SSL_HANDSHAKE_MAC_SHA384, SSL_HANDSHAKE_MAC_GOST12_256, 0,
+    SSL_HANDSHAKE_MAC_GOST12_512,
 };
 
 #define CIPHER_ADD      1
@@ -339,7 +352,9 @@ static const SSL_CIPHER cipher_aliases[] = {
     {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0,
+     0, 0, 0, 0},
     {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0},
 
     /* aliases combining key exchange and server authentication */
@@ -362,6 +377,8 @@ static const SSL_CIPHER cipher_aliases[] = {
     {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_GOST, 0, 0, 0, SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12, 0,
+     0, 0, 0, 0, 0},
     {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8, 0,
      0, 0, 0, 0, 0},
     {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8, 0,
@@ -383,9 +400,11 @@ static const SSL_CIPHER cipher_aliases[] = {
     {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
     {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
     {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12, 0, 0,
+     0, 0, 0},
     {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0},
     {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0},
 
     /* protocol version aliases */
     {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
@@ -542,12 +561,23 @@ void ssl_load_ciphers(void)
         disabled_mac_mask |= SSL_GOST89MAC;
     }
 
+    ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX] = get_optional_pkey_id("gost-mac-12");
+    if (ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX]) {
+        ssl_mac_secret_size[SSL_MD_GOST89MAC12_IDX] = 32;
+    } else {
+        disabled_mac_mask |= SSL_GOST89MAC12;
+    }
+
     if (!get_optional_pkey_id("gost2001"))
-        disabled_auth_mask |= SSL_aGOST01;
+        disabled_auth_mask |= SSL_aGOST01 | SSL_aGOST12;
+    if (!get_optional_pkey_id("gost2012_256"))
+        disabled_auth_mask |= SSL_aGOST12;
+    if (!get_optional_pkey_id("gost2012_512"))
+        disabled_auth_mask |= SSL_aGOST12;
     /*
      * Disable GOST key exchange if no GOST signature algs are available *
      */
-    if ((disabled_auth_mask & SSL_aGOST01) == SSL_aGOST01)
+    if ((disabled_auth_mask & (SSL_aGOST01 | SSL_aGOST12)) == (SSL_aGOST01 | SSL_aGOST12))
         disabled_mkey_mask |= SSL_kGOST;
 }
 
@@ -1704,6 +1734,10 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
     case SSL_aGOST01:
         au = "GOST01";
         break;
+        /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */
+    case (SSL_aGOST12 | SSL_aGOST01):
+        au = "GOST12";
+        break;
     default:
         au = "unknown";
         break;
@@ -1762,6 +1796,7 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
         enc = "SEED(128)";
         break;
     case SSL_eGOST2814789CNT:
+    case SSL_eGOST2814789CNT12:
         enc = "GOST89(256)";
         break;
     default:
@@ -1786,11 +1821,16 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
         mac = "AEAD";
         break;
     case SSL_GOST89MAC:
+    case SSL_GOST89MAC12:
         mac = "GOST89";
         break;
     case SSL_GOST94:
         mac = "GOST94";
         break;
+    case SSL_GOST12_256:
+    case SSL_GOST12_512:
+        mac = "GOST2012";
+        break;
     default:
         mac = "unknown";
         break;
@@ -1998,8 +2038,11 @@ int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
         return SSL_PKEY_DSA_SIGN;
     else if (alg_a & SSL_aRSA)
         return SSL_PKEY_RSA_ENC;
+    else if (alg_a & SSL_aGOST12)
+        return SSL_PKEY_GOST_EC;
     else if (alg_a & SSL_aGOST01)
         return SSL_PKEY_GOST01;
+
     return -1;
 }