From 9981a51e426b5b346848163ff89e8a63d0916097 Mon Sep 17 00:00:00 2001
From: "Dr. Stephen Henson" <steve@openssl.org>
Date: Fri, 23 Mar 2007 17:04:05 +0000
Subject: [PATCH] Stage 1 GOST ciphersuite support.

Submitted by: ran@cryptocom.ru
Reviewed by: steve@openssl.org
---
 apps/ciphers.c              |  2 ++
 crypto/objects/obj_dat.h    |  9 ++++++---
 crypto/objects/obj_mac.h    |  3 +++
 crypto/objects/obj_mac.num  |  1 +
 crypto/objects/objects.txt  |  1 +
 engines/ccgost/gost_crypt.c | 35 +++++++++++++++--------------------
 engines/ccgost/gost_eng.c   | 11 ++++++++---
 engines/ccgost/gost_lcl.h   |  1 +
 ssl/s3_lib.c                | 18 ++++++++++++++++++
 ssl/ssl_ciph.c              | 11 +++++++++--
 ssl/ssl_locl.h              |  1 +
 11 files changed, 65 insertions(+), 28 deletions(-)

diff --git a/apps/ciphers.c b/apps/ciphers.c
index be3fc18e0e..3d4c60db9e 100644
--- a/apps/ciphers.c
+++ b/apps/ciphers.c
@@ -115,6 +115,8 @@ int MAIN(int argc, char **argv)
 	STDout = BIO_push(tmpbio, STDout);
 	}
 #endif
+	if (!load_config(bio_err, NULL))
+		goto end;
 
 	argc--;
 	argv++;
diff --git a/crypto/objects/obj_dat.h b/crypto/objects/obj_dat.h
index 9c6bad7891..8dad99c0dc 100644
--- a/crypto/objects/obj_dat.h
+++ b/crypto/objects/obj_dat.h
@@ -62,9 +62,9 @@
  * [including the GNU Public Licence.]
  */
 
-#define NUM_NID 835
-#define NUM_SN 831
-#define NUM_LN 831
+#define NUM_NID 836
+#define NUM_SN 832
+#define NUM_LN 832
 #define NUM_OBJ 787
 
 static unsigned char lvalues[5560]={
@@ -2208,6 +2208,7 @@ static ASN1_OBJECT nid_objs[NUM_NID]={
 	&(lvalues[5541]),0},
 {"dsa_with_SHA256","dsa_with_SHA256",NID_dsa_with_SHA256,9,
 	&(lvalues[5550]),0},
+{"gost89-cnt","gost89-cnt",NID_gost89_cnt,0,NULL,0},
 };
 
 static ASN1_OBJECT *sn_objs[NUM_SN]={
@@ -2483,6 +2484,7 @@ static ASN1_OBJECT *sn_objs[NUM_SN]={
 &(nid_objs[784]),/* "gost2001" */
 &(nid_objs[823]),/* "gost2001cc" */
 &(nid_objs[786]),/* "gost89" */
+&(nid_objs[835]),/* "gost89-cnt" */
 &(nid_objs[785]),/* "gost94" */
 &(nid_objs[822]),/* "gost94cc" */
 &(nid_objs[772]),/* "hmacWithMD5" */
@@ -3333,6 +3335,7 @@ static ASN1_OBJECT *ln_objs[NUM_LN]={
 &(nid_objs[509]),/* "generationQualifier" */
 &(nid_objs[601]),/* "generic cryptogram" */
 &(nid_objs[99]),/* "givenName" */
+&(nid_objs[835]),/* "gost89-cnt" */
 &(nid_objs[772]),/* "hmacWithMD5" */
 &(nid_objs[163]),/* "hmacWithSHA1" */
 &(nid_objs[773]),/* "hmacWithSHA224" */
diff --git a/crypto/objects/obj_mac.h b/crypto/objects/obj_mac.h
index db846f49c0..131199a633 100644
--- a/crypto/objects/obj_mac.h
+++ b/crypto/objects/obj_mac.h
@@ -3419,6 +3419,9 @@
 #define NID_id_Gost28147_89		786
 #define OBJ_id_Gost28147_89		OBJ_cryptopro,21L
 
+#define SN_gost89_cnt		"gost89-cnt"
+#define NID_gost89_cnt		835
+
 #define SN_id_Gost28147_89_MAC		"id-Gost28147-89-MAC"
 #define LN_id_Gost28147_89_MAC		"GOST 28147-89 MAC"
 #define NID_id_Gost28147_89_MAC		787
diff --git a/crypto/objects/obj_mac.num b/crypto/objects/obj_mac.num
index 1a200207ff..b9d34d26d5 100644
--- a/crypto/objects/obj_mac.num
+++ b/crypto/objects/obj_mac.num
@@ -832,3 +832,4 @@ ecdsa_with_SHA384		831
 ecdsa_with_SHA512		832
 dsa_with_SHA224		833
 dsa_with_SHA256		834
+gost89_cnt		835
diff --git a/crypto/objects/objects.txt b/crypto/objects/objects.txt
index e2a6c24c4c..1f48abfc24 100644
--- a/crypto/objects/objects.txt
+++ b/crypto/objects/objects.txt
@@ -1091,6 +1091,7 @@ cryptopro 19		: gost2001	: GOST R 34.10-2001
 cryptopro 20		: gost94	: GOST R 34.10-94
 !Cname id-Gost28147-89
 cryptopro 21		: gost89 		: GOST 28147-89
+			: gost89-cnt
 cryptopro 22		: id-Gost28147-89-MAC	: GOST 28147-89 MAC
 !Cname id-GostR3411-94-prf
 cryptopro 23		: prf-gostr3411-94	: GOST R 34.11-94 PRF
diff --git a/engines/ccgost/gost_crypt.c b/engines/ccgost/gost_crypt.c
index fca7b2d9d5..04b1e555c2 100644
--- a/engines/ccgost/gost_crypt.c
+++ b/engines/ccgost/gost_crypt.c
@@ -13,21 +13,19 @@
 #include "gost_lcl.h"
 static int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, 
 	const unsigned char *iv, int enc);
+static int	gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+	const unsigned char *iv, int enc);
 #ifdef USE_SSL
 /* Specialized init functions which set specific parameters */			
 static int	gost_cipher_init_vizir(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	const unsigned char *iv, int enc);
-static int	gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-	const unsigned char *iv, int enc);
 #endif
 /* Handles block of data in CFB mode */			
 static int	gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
 	const unsigned char *in, unsigned int inl);
-#if 0
 /* Handles block of data in CNT mode */			
 static int	gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out,
 	const unsigned char *in, unsigned int inl);
-#endif
 /* Cleanup function */			
 static int gost_cipher_cleanup(EVP_CIPHER_CTX *);
 /* set/get cipher parameters */
@@ -54,17 +52,16 @@ EVP_CIPHER cipher_gost =
 	NULL,
 	};
 
-#ifdef USE_SSL
-static EVP_CIPHER cipher_gost_vizircfb = 
+EVP_CIPHER cipher_gost_cpacnt = 
 	{
-	NID_undef,
+	NID_gost89_cnt,
 	1,/*block_size*/
 	32,/*key_size*/
 	8,/*iv_len - ñèíõðîïîñûëêà*/
-	EVP_CIPH_CFB_MODE| EVP_CIPH_NO_PADDING |
+	EVP_CIPH_OFB_MODE| EVP_CIPH_NO_PADDING |
 	EVP_CIPH_CUSTOM_IV| EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT,
-	gost_cipher_init_vizir,
-	gost_cipher_do_cfb,
+	gost_cipher_init_cpa,
+	gost_cipher_do_cnt,
 	gost_cipher_cleanup,
 	sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */
 	gost89_set_asn1_parameters,
@@ -73,16 +70,17 @@ static EVP_CIPHER cipher_gost_vizircfb =
 	NULL,
 	};
 
-static EVP_CIPHER cipher_gost_cpacnt = 
+#ifdef USE_SSL
+static EVP_CIPHER cipher_gost_vizircfb = 
 	{
 	NID_undef,
 	1,/*block_size*/
 	32,/*key_size*/
 	8,/*iv_len - ñèíõðîïîñûëêà*/
-	EVP_CIPH_OFB_MODE| EVP_CIPH_NO_PADDING |
+	EVP_CIPH_CFB_MODE| EVP_CIPH_NO_PADDING |
 	EVP_CIPH_CUSTOM_IV| EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT,
-	gost_cipher_init_cpa,
-	gost_cipher_do_cnt,
+	gost_cipher_init_vizir,
+	gost_cipher_do_cfb,
 	gost_cipher_cleanup,
 	sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */
 	gost89_set_asn1_parameters,
@@ -90,6 +88,7 @@ static EVP_CIPHER cipher_gost_cpacnt =
 	gost_cipher_ctl,
 	NULL,
 	};
+
 /* Implementation of GOST 28147-89 in MAC (imitovstavka) mode */
 /* Init functions which set specific parameters */
 static int gost_imit_init_vizir(EVP_MD_CTX *ctx);
@@ -227,8 +226,6 @@ static int gost_cipher_init_param(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	return 1;
 	}	
 
-#ifdef USE_SSL
-/* Initializes EVP_CIPHER_CTX with fixed cryptopro A paramset */
 static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	const unsigned char *iv, int enc)
 	{
@@ -241,6 +238,8 @@ static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx));
 	return 1;
 	}
+#ifdef USE_SSL
+/* Initializes EVP_CIPHER_CTX with fixed cryptopro A paramset */
 
 /* Initializes EVP_CIPHER_CTX with fixed vizir paramset */
 static int gost_cipher_init_vizir(EVP_CIPHER_CTX *ctx, const unsigned char *key,
@@ -278,7 +277,6 @@ static void gost_crypt_mesh (void *ctx,unsigned char *iv,unsigned char *buf)
 	c->count+=8;
 	}
 
-#ifdef USE_SSL
 static void gost_cnt_next (void *ctx, unsigned char *iv, unsigned char *buf)
 	{
 	struct ossl_gost_cipher_ctx *c = ctx;
@@ -309,7 +307,6 @@ static void gost_cnt_next (void *ctx, unsigned char *iv, unsigned char *buf)
 	gostcrypt(&(c->cctx),buf1,buf);
 	c->count +=8;
 	}
-#endif  /* def USE_SSL */
 
 /* GOST encryption in CFB mode */
 int	gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
@@ -374,7 +371,6 @@ int	gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
 	return 1;
 	}
 
-#if USE_SSL
 static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out,
 	const unsigned char *in, unsigned int inl)
 	{
@@ -428,7 +424,6 @@ static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out,
 		}	
 	return 1;
 	}
-#endif  /* def USE_SSL */
 
 /* Cleaning up of EVP_CIPHER_CTX */
 int gost_cipher_cleanup(EVP_CIPHER_CTX *ctx) 
diff --git a/engines/ccgost/gost_eng.c b/engines/ccgost/gost_eng.c
index 0c47253e2a..1c5a493df6 100644
--- a/engines/ccgost/gost_eng.c
+++ b/engines/ccgost/gost_eng.c
@@ -31,7 +31,7 @@ static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
 	const int **nids, int nid);
 
 static int gost_cipher_nids[] =
-    {NID_id_Gost28147_89, 0};
+    {NID_id_Gost28147_89, NID_gost89_cnt,0};
 
 static int gost_digest_nids[] =
 	{NID_id_GostR3411_94, 0};
@@ -129,6 +129,7 @@ static int bind_gost (ENGINE *e,const char *id)
 		|| ! ENGINE_register_pkey_meths(e)
 		/* These two actually should go in LIST_ADD command */
 		|| ! EVP_add_cipher(&cipher_gost)
+		|| ! EVP_add_cipher(&cipher_gost_cpacnt)
 		|| ! EVP_add_digest(&digest_gost)
 		)
 		{
@@ -175,14 +176,18 @@ static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
 	if (!cipher) 
 		{
 		*nids = gost_cipher_nids;
-		return 1; /* Only one cipher supported */
+		return 2; /* two ciphers are supported */
 		}
 
 	if(nid == NID_id_Gost28147_89) 
 		{
 		*cipher = &cipher_gost;
 		}
-	else 
+	else if  (nid == NID_gost89_cnt) 
+		{
+		*cipher = &cipher_gost_cpacnt;
+		}
+	else	
 		{
 		ok = 0;
 		*cipher = NULL;
diff --git a/engines/ccgost/gost_lcl.h b/engines/ccgost/gost_lcl.h
index b40b88463c..5904eeb834 100644
--- a/engines/ccgost/gost_lcl.h
+++ b/engines/ccgost/gost_lcl.h
@@ -135,6 +135,7 @@ extern struct gost_cipher_info gost_cipher_list[];
 const struct gost_cipher_info *get_encryption_params(ASN1_OBJECT *obj);
 /* Implementation of GOST 28147-89 cipher in CFB and CNT modes */
 extern EVP_CIPHER cipher_gost;
+extern EVP_CIPHER cipher_gost_cpacnt;
 #ifdef USE_SSL
 #define EVP_MD_FLAG_NEEDS_KEY 0x20
 #define EVP_MD_CTRL_GET_TLS_MAC_KEY_LENGTH (EVP_MD_CTRL_ALG_CTRL+1)
diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 759a9e4e12..6e4ce00caf 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -1855,6 +1855,24 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={
 	},
 #endif	/* OPENSSL_NO_ECDH */
 
+#ifdef TEMP_GOST_TLS
+/* Cipher FF00 */
+	{
+	1,
+	"GOST-MD5",
+	0x0300ff00,
+	SSL_kRSA,
+	SSL_aRSA,
+	SSL_eGOST2814789CNT,
+	SSL_MD5,
+	SSL_TLSV1,
+	SSL_NOT_EXP|SSL_HIGH,
+	0,
+	256,
+	256,
+	},
+#endif
+
 /* end of list */
 	};
 
diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c
index 9b5a2648f6..aa7893b346 100644
--- a/ssl/ssl_ciph.c
+++ b/ssl/ssl_ciph.c
@@ -155,11 +155,12 @@
 #define SSL_ENC_AES256_IDX	7
 #define SSL_ENC_CAMELLIA128_IDX	8
 #define SSL_ENC_CAMELLIA256_IDX	9
-#define SSL_ENC_NUM_IDX		10
+#define SSL_ENC_GOST89_IDX	10
+#define SSL_ENC_NUM_IDX		11
 
 
 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
-	NULL,NULL,NULL,NULL,NULL,NULL,
+	NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
 	};
 
 #define SSL_COMP_NULL_IDX	0
@@ -305,6 +306,8 @@ void ssl_load_ciphers(void)
 	  EVP_get_cipherbyname(SN_camellia_128_cbc);
 	ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]=
 	  EVP_get_cipherbyname(SN_camellia_256_cbc);
+	ssl_cipher_methods[SSL_ENC_GOST89_IDX]=
+		EVP_get_cipherbyname(SN_gost89_cnt);
 
 	ssl_digest_methods[SSL_MD_MD5_IDX]=
 		EVP_get_digestbyname(SN_md5);
@@ -427,6 +430,9 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
 	case SSL_CAMELLIA256:
 		i=SSL_ENC_CAMELLIA256_IDX;
 		break;
+	case SSL_eGOST2814789CNT:
+		i=SSL_ENC_GOST89_IDX;
+		break;
 	default:
 		i= -1;
 		break;
@@ -549,6 +555,7 @@ static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, un
 	*enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0;
 	*enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0;
 	*enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0;
+	*enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0;
 
 	*mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
 	*mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index d4d773a0b1..6dbcef3de1 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -310,6 +310,7 @@
 #define SSL_AES256		0x00000080L
 #define SSL_CAMELLIA128		0x00000100L
 #define SSL_CAMELLIA256		0x00000200L
+#define SSL_eGOST2814789CNT	0x00000400L
 
 #define SSL_AES        		(SSL_AES128|SSL_AES256)
 #define SSL_CAMELLIA		(SSL_CAMELLIA128|SSL_CAMELLIA256)
-- 
2.25.1