Remove Gost94 signature algorithm.

This was obsolete in 2001.  This is not the same as Gost94 digest.
Thanks to Dmitry Belyavsky <beldmit@gmail.com> for review and advice.

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

13 files changed, 107 insertions, 1350 deletions

diff --git a/engines/ccgost/Makefile b/engines/ccgost/Makefile
index 57b9c59f17..3c1e4f94cb 100644
--- a/engines/ccgost/Makefile
+++ b/engines/ccgost/Makefile
@@ -8,9 +8,9 @@ AR= ar r
 CFLAGS= $(INCLUDES) $(CFLAG)
 LIB=$(TOP)/libcrypto.a
 
-LIBSRC= gost2001.c gost2001_keyx.c gost89.c gost94_keyx.c gost_ameth.c gost_asn1.c gost_crypt.c gost_ctl.c gost_eng.c gosthash.c gost_keywrap.c gost_md.c gost_params.c gost_pmeth.c gost_sign.c
+LIBSRC= gost2001.c gost2001_keyx.c gost89.c gost_ameth.c gost_asn1.c gost_crypt.c gost_ctl.c gost_eng.c gosthash.c gost_keywrap.c gost_md.c gost_pmeth.c gost_params.c
 
-LIBOBJ= e_gost_err.o gost2001_keyx.o gost2001.o gost89.o gost94_keyx.o gost_ameth.o gost_asn1.o gost_crypt.o gost_ctl.o gost_eng.o gosthash.o gost_keywrap.o gost_md.o gost_params.o gost_pmeth.o gost_sign.o
+LIBOBJ= e_gost_err.o gost2001_keyx.o gost2001.o gost89.o gost_ameth.o gost_asn1.o gost_crypt.o gost_ctl.o gost_eng.o gosthash.o gost_keywrap.o gost_md.o gost_pmeth.o gost_params.o
 
 SRC=$(LIBSRC)
 
@@ -100,8 +100,7 @@ gost2001.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
 gost2001.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
 gost2001.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
 gost2001.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
-gost2001.o: e_gost_err.h gost2001.c gost89.h gost_lcl.h gost_params.h
-gost2001.o: gosthash.h
+gost2001.o: e_gost_err.h gost2001.c gost89.h gost_lcl.h gosthash.h
 gost2001_keyx.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
 gost2001_keyx.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
 gost2001_keyx.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
@@ -120,23 +119,6 @@ gost2001_keyx.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
 gost2001_keyx.o: ../../include/openssl/x509_vfy.h e_gost_err.h gost2001_keyx.c
 gost2001_keyx.o: gost2001_keyx.h gost89.h gost_keywrap.h gost_lcl.h gosthash.h
 gost89.o: gost89.c gost89.h
-gost94_keyx.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
-gost94_keyx.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
-gost94_keyx.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
-gost94_keyx.o: ../../include/openssl/dh.h ../../include/openssl/dsa.h
-gost94_keyx.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
-gost94_keyx.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
-gost94_keyx.o: ../../include/openssl/engine.h ../../include/openssl/err.h
-gost94_keyx.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
-gost94_keyx.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
-gost94_keyx.o: ../../include/openssl/opensslconf.h
-gost94_keyx.o: ../../include/openssl/opensslv.h
-gost94_keyx.o: ../../include/openssl/ossl_typ.h ../../include/openssl/pkcs7.h
-gost94_keyx.o: ../../include/openssl/rand.h ../../include/openssl/safestack.h
-gost94_keyx.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
-gost94_keyx.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
-gost94_keyx.o: ../../include/openssl/x509_vfy.h e_gost_err.h gost89.h
-gost94_keyx.o: gost94_keyx.c gost_keywrap.h gost_lcl.h gosthash.h
 gost_ameth.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
 gost_ameth.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
 gost_ameth.o: ../../include/openssl/buffer.h ../../include/openssl/cms.h
@@ -152,7 +134,7 @@ gost_ameth.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
 gost_ameth.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
 gost_ameth.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
 gost_ameth.o: ../../include/openssl/x509_vfy.h e_gost_err.h gost89.h
-gost_ameth.o: gost_ameth.c gost_lcl.h gost_params.h gosthash.h
+gost_ameth.o: gost_ameth.c gost_lcl.h gosthash.h
 gost_asn1.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
 gost_asn1.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
 gost_asn1.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
@@ -229,14 +211,21 @@ gost_md.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
 gost_md.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
 gost_md.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
 gost_md.o: e_gost_err.h gost89.h gost_lcl.h gost_md.c gosthash.h
-gost_params.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
-gost_params.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
+gost_params.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
+gost_params.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
+gost_params.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
+gost_params.o: ../../include/openssl/dsa.h ../../include/openssl/e_os2.h
+gost_params.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
+gost_params.o: ../../include/openssl/ecdsa.h ../../include/openssl/engine.h
+gost_params.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
 gost_params.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
 gost_params.o: ../../include/openssl/opensslconf.h
 gost_params.o: ../../include/openssl/opensslv.h
-gost_params.o: ../../include/openssl/ossl_typ.h
-gost_params.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-gost_params.o: ../../include/openssl/symhacks.h gost_params.c gost_params.h
+gost_params.o: ../../include/openssl/ossl_typ.h ../../include/openssl/pkcs7.h
+gost_params.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
+gost_params.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+gost_params.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
+gost_params.o: gost89.h gost_lcl.h gost_params.c gosthash.h
 gost_pmeth.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
 gost_pmeth.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
 gost_pmeth.o: ../../include/openssl/buffer.h ../../include/openssl/conf.h
@@ -252,23 +241,5 @@ gost_pmeth.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
 gost_pmeth.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
 gost_pmeth.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
 gost_pmeth.o: ../../include/openssl/x509_vfy.h ../../include/openssl/x509v3.h
-gost_pmeth.o: e_gost_err.h gost89.h gost_lcl.h gost_params.h gost_pmeth.c
-gost_pmeth.o: gosthash.h
-gost_sign.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
-gost_sign.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
-gost_sign.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
-gost_sign.o: ../../include/openssl/dsa.h ../../include/openssl/e_os2.h
-gost_sign.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
-gost_sign.o: ../../include/openssl/ecdsa.h ../../include/openssl/engine.h
-gost_sign.o: ../../include/openssl/err.h ../../include/openssl/evp.h
-gost_sign.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
-gost_sign.o: ../../include/openssl/objects.h
-gost_sign.o: ../../include/openssl/opensslconf.h
-gost_sign.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
-gost_sign.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
-gost_sign.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
-gost_sign.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
-gost_sign.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
-gost_sign.o: e_gost_err.h gost89.h gost_lcl.h gost_params.h gost_sign.c
-gost_sign.o: gosthash.h
+gost_pmeth.o: e_gost_err.h gost89.h gost_lcl.h gost_pmeth.c gosthash.h
 gosthash.o: gost89.h gosthash.c gosthash.h
diff --git a/engines/ccgost/e_gost_err.c b/engines/ccgost/e_gost_err.c
index 0afd91311d..d05ef6143c 100644
--- a/engines/ccgost/e_gost_err.c
+++ b/engines/ccgost/e_gost_err.c
@@ -73,7 +73,6 @@ static ERR_STRING_DATA GOST_str_functs[] = {
     {ERR_FUNC(GOST_F_DECODE_GOST_ALGOR_PARAMS), "DECODE_GOST_ALGOR_PARAMS"},
     {ERR_FUNC(GOST_F_ENCODE_GOST_ALGOR_PARAMS), "ENCODE_GOST_ALGOR_PARAMS"},
     {ERR_FUNC(GOST_F_FILL_GOST2001_PARAMS), "FILL_GOST2001_PARAMS"},
-    {ERR_FUNC(GOST_F_FILL_GOST94_PARAMS), "FILL_GOST94_PARAMS"},
     {ERR_FUNC(GOST_F_GET_ENCRYPTION_PARAMS), "GET_ENCRYPTION_PARAMS"},
     {ERR_FUNC(GOST_F_GOST2001_COMPUTE_PUBLIC), "GOST2001_COMPUTE_PUBLIC"},
     {ERR_FUNC(GOST_F_GOST2001_DO_SIGN), "GOST2001_DO_SIGN"},
@@ -83,37 +82,24 @@ static ERR_STRING_DATA GOST_str_functs[] = {
      "GOST89_GET_ASN1_PARAMETERS"},
     {ERR_FUNC(GOST_F_GOST89_SET_ASN1_PARAMETERS),
      "GOST89_SET_ASN1_PARAMETERS"},
-    {ERR_FUNC(GOST_F_GOST94_COMPUTE_PUBLIC), "GOST94_COMPUTE_PUBLIC"},
     {ERR_FUNC(GOST_F_GOST_CIPHER_CTL), "GOST_CIPHER_CTL"},
-    {ERR_FUNC(GOST_F_GOST_DO_SIGN), "GOST_DO_SIGN"},
-    {ERR_FUNC(GOST_F_GOST_DO_VERIFY), "GOST_DO_VERIFY"},
     {ERR_FUNC(GOST_F_GOST_IMIT_CTRL), "GOST_IMIT_CTRL"},
     {ERR_FUNC(GOST_F_GOST_IMIT_FINAL), "GOST_IMIT_FINAL"},
     {ERR_FUNC(GOST_F_GOST_IMIT_UPDATE), "GOST_IMIT_UPDATE"},
-    {ERR_FUNC(GOST_F_GOST_SIGN_KEYGEN), "GOST_SIGN_KEYGEN"},
     {ERR_FUNC(GOST_F_PARAM_COPY_GOST01), "PARAM_COPY_GOST01"},
-    {ERR_FUNC(GOST_F_PARAM_COPY_GOST94), "PARAM_COPY_GOST94"},
     {ERR_FUNC(GOST_F_PKEY_GOST01CP_DECRYPT), "PKEY_GOST01CP_DECRYPT"},
     {ERR_FUNC(GOST_F_PKEY_GOST01CP_ENCRYPT), "PKEY_GOST01CP_ENCRYPT"},
-    {ERR_FUNC(GOST_F_PKEY_GOST01CP_KEYGEN), "PKEY_GOST01CP_KEYGEN"},
     {ERR_FUNC(GOST_F_PKEY_GOST01_PARAMGEN), "PKEY_GOST01_PARAMGEN"},
     {ERR_FUNC(GOST_F_PKEY_GOST2001_DERIVE), "PKEY_GOST2001_DERIVE"},
-    {ERR_FUNC(GOST_F_PKEY_GOST94CP_DECRYPT), "PKEY_GOST94CP_DECRYPT"},
-    {ERR_FUNC(GOST_F_PKEY_GOST94CP_ENCRYPT), "PKEY_GOST94CP_ENCRYPT"},
-    {ERR_FUNC(GOST_F_PKEY_GOST94CP_KEYGEN), "PKEY_GOST94CP_KEYGEN"},
-    {ERR_FUNC(GOST_F_PKEY_GOST94_PARAMGEN), "PKEY_GOST94_PARAMGEN"},
     {ERR_FUNC(GOST_F_PKEY_GOST_CTRL), "PKEY_GOST_CTRL"},
     {ERR_FUNC(GOST_F_PKEY_GOST_CTRL01_STR), "PKEY_GOST_CTRL01_STR"},
-    {ERR_FUNC(GOST_F_PKEY_GOST_CTRL94_STR), "PKEY_GOST_CTRL94_STR"},
     {ERR_FUNC(GOST_F_PKEY_GOST_MAC_CTRL), "PKEY_GOST_MAC_CTRL"},
     {ERR_FUNC(GOST_F_PKEY_GOST_MAC_CTRL_STR), "PKEY_GOST_MAC_CTRL_STR"},
     {ERR_FUNC(GOST_F_PKEY_GOST_MAC_KEYGEN), "PKEY_GOST_MAC_KEYGEN"},
     {ERR_FUNC(GOST_F_PRINT_GOST_01), "PRINT_GOST_01"},
     {ERR_FUNC(GOST_F_PRIV_DECODE_GOST), "PRIV_DECODE_GOST"},
     {ERR_FUNC(GOST_F_PUB_DECODE_GOST01), "PUB_DECODE_GOST01"},
-    {ERR_FUNC(GOST_F_PUB_DECODE_GOST94), "PUB_DECODE_GOST94"},
     {ERR_FUNC(GOST_F_PUB_ENCODE_GOST01), "PUB_ENCODE_GOST01"},
-    {ERR_FUNC(GOST_F_UNPACK_CC_SIGNATURE), "UNPACK_CC_SIGNATURE"},
     {ERR_FUNC(GOST_F_UNPACK_CP_SIGNATURE), "UNPACK_CP_SIGNATURE"},
     {0, NULL}
 };
@@ -128,8 +114,6 @@ static ERR_STRING_DATA GOST_str_reasons[] = {
     {ERR_REASON(GOST_R_CTRL_CALL_FAILED), "ctrl call failed"},
     {ERR_REASON(GOST_R_ERROR_COMPUTING_SHARED_KEY),
      "error computing shared key"},
-    {ERR_REASON(GOST_R_ERROR_PACKING_KEY_TRANSPORT_INFO),
-     "error packing key transport info"},
     {ERR_REASON(GOST_R_ERROR_PARSING_KEY_TRANSPORT_INFO),
      "error parsing key transport info"},
     {ERR_REASON(GOST_R_INCOMPATIBLE_ALGORITHMS), "incompatible algorithms"},
@@ -137,11 +121,9 @@ static ERR_STRING_DATA GOST_str_reasons[] = {
     {ERR_REASON(GOST_R_INVALID_CIPHER_PARAMS), "invalid cipher params"},
     {ERR_REASON(GOST_R_INVALID_CIPHER_PARAM_OID), "invalid cipher param oid"},
     {ERR_REASON(GOST_R_INVALID_DIGEST_TYPE), "invalid digest type"},
-    {ERR_REASON(GOST_R_INVALID_GOST94_PARMSET), "invalid gost94 parmset"},
     {ERR_REASON(GOST_R_INVALID_IV_LENGTH), "invalid iv length"},
     {ERR_REASON(GOST_R_INVALID_MAC_KEY_LENGTH), "invalid mac key length"},
     {ERR_REASON(GOST_R_INVALID_PARAMSET), "invalid paramset"},
-    {ERR_REASON(GOST_R_KEY_IS_NOT_INITALIZED), "key is not initalized"},
     {ERR_REASON(GOST_R_KEY_IS_NOT_INITIALIZED), "key is not initialized"},
     {ERR_REASON(GOST_R_KEY_PARAMETERS_MISSING), "key parameters missing"},
     {ERR_REASON(GOST_R_MAC_KEY_NOT_SET), "mac key not set"},
diff --git a/engines/ccgost/gost2001.c b/engines/ccgost/gost2001.c
index 6d41f31f21..985795ed7c 100644
--- a/engines/ccgost/gost2001.c
+++ b/engines/ccgost/gost2001.c
@@ -7,7 +7,6 @@
  *          Requires OpenSSL 0.9.9 for compilation                    *
  **********************************************************************/
 #include "gost_lcl.h"
-#include "gost_params.h"
 #include <string.h>
 #include <openssl/rand.h>
 #include <openssl/ecdsa.h>
diff --git a/engines/ccgost/gost94_keyx.c b/engines/ccgost/gost94_keyx.c
deleted file mode 100644
index b529c8ee81..0000000000
--- a/engines/ccgost/gost94_keyx.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/**********************************************************************
- *                             gost94_keyx.c                          *
- *             Copyright (c) 2005-2006 Cryptocom LTD                  *
- *         This file is distributed under the same license as OpenSSL *
- *                                                                    *
- *     Implements generation and parsing of GOST_KEY_TRANSPORT for    *
- *              GOST R 34.10-94 algorithms                            *
- *                                                                    *
- *          Requires OpenSSL 0.9.9 for compilation                    *
- **********************************************************************/
-#include <string.h>
-#include <openssl/dh.h>
-#include <openssl/rand.h>
-#include <openssl/err.h>
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-
-#include "gost89.h"
-#include "gosthash.h"
-#include "e_gost_err.h"
-#include "gost_keywrap.h"
-#include "gost_lcl.h"
-/* Common functions for both 94 and 2001 key exchange schemes */
-/*
- * Implementation of the Diffi-Hellman key agreement scheme based on GOST-94
- * keys
- */
-
-/*
- * Computes Diffie-Hellman key and stores it into buffer in little-endian
- * byte order as expected by both versions of GOST 94 algorithm
- */
-static int compute_pair_key_le(unsigned char *pair_key, BIGNUM *pub_key,
-                               DH *dh)
-{
-    unsigned char be_key[128];
-    int i, key_size;
-    key_size = DH_compute_key(be_key, pub_key, dh);
-    if (!key_size)
-        return 0;
-    memset(pair_key, 0, 128);
-    for (i = 0; i < key_size; i++) {
-        pair_key[i] = be_key[key_size - 1 - i];
-    }
-    return key_size;
-}
-
-/*
- * Computes 256 bit Key exchange key as specified in RFC 4357
- */
-static int make_cp_exchange_key(BIGNUM *priv_key, EVP_PKEY *pubk,
-                                unsigned char *shared_key)
-{
-    unsigned char dh_key[128];
-    int ret;
-    gost_hash_ctx hash_ctx;
-    DH *dh = DH_new();
-
-    if (!dh)
-        return 0;
-    memset(dh_key, 0, 128);
-    dh->g = BN_dup(pubk->pkey.dsa->g);
-    dh->p = BN_dup(pubk->pkey.dsa->p);
-    dh->priv_key = BN_dup(priv_key);
-    ret =
-        compute_pair_key_le(dh_key, ((DSA *)(EVP_PKEY_get0(pubk)))->pub_key,
-                            dh);
-    DH_free(dh);
-    if (!ret)
-        return 0;
-    init_gost_hash_ctx(&hash_ctx, &GostR3411_94_CryptoProParamSet);
-    start_hash(&hash_ctx);
-    hash_block(&hash_ctx, dh_key, 128);
-    finish_hash(&hash_ctx, shared_key);
-    done_gost_hash_ctx(&hash_ctx);
-    return 1;
-}
-
-/* EVP_PKEY_METHOD callback derive. Implements VKO R 34.10-94 */
-
-int pkey_gost94_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen)
-{
-    EVP_PKEY *pubk = EVP_PKEY_CTX_get0_peerkey(ctx);
-    EVP_PKEY *mykey = EVP_PKEY_CTX_get0_pkey(ctx);
-    *keylen = 32;
-    if (key == NULL)
-        return 1;
-
-    return make_cp_exchange_key(gost_get0_priv_key(mykey), pubk, key);
-}
-
-/*
- * EVP_PKEY_METHOD callback encrypt for GOST R 34.10-94 cryptopro
- * modification
- */
-
-int pkey_GOST94cp_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
-                          size_t *outlen, const unsigned char *key,
-                          size_t key_len)
-{
-    GOST_KEY_TRANSPORT *gkt = NULL;
-    unsigned char shared_key[32], ukm[8], crypted_key[44];
-    const struct gost_cipher_info *param = get_encryption_params(NULL);
-    EVP_PKEY *pubk = EVP_PKEY_CTX_get0_pkey(ctx);
-    struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
-    gost_ctx cctx;
-    int key_is_ephemeral = 1;
-    int tmp_outlen;
-    EVP_PKEY *mykey = EVP_PKEY_CTX_get0_peerkey(ctx);
-
-    /* Do not use vizir cipher parameters with cryptopro */
-    if (!get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS)
-        && param == gost_cipher_list) {
-        param = gost_cipher_list + 1;
-    }
-
-    if (mykey) {
-        /* If key already set, it is not ephemeral */
-        key_is_ephemeral = 0;
-        if (!gost_get0_priv_key(mykey)) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT,
-                    GOST_R_NO_PRIVATE_PART_OF_NON_EPHEMERAL_KEYPAIR);
-            goto err;
-        }
-    } else {
-        /* Otherwise generate ephemeral key */
-        key_is_ephemeral = 1;
-        if (out) {
-            mykey = EVP_PKEY_new();
-            EVP_PKEY_assign(mykey, EVP_PKEY_base_id(pubk), DSA_new());
-            EVP_PKEY_copy_parameters(mykey, pubk);
-            if (!gost_sign_keygen(EVP_PKEY_get0(mykey))) {
-                goto err;
-            }
-        }
-    }
-    if (out)
-        make_cp_exchange_key(gost_get0_priv_key(mykey), pubk, shared_key);
-    if (data->shared_ukm) {
-        memcpy(ukm, data->shared_ukm, 8);
-    } else if (out) {
-        if (RAND_bytes(ukm, 8) <= 0) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT,
-                    GOST_R_RANDOM_GENERATOR_FAILURE);
-            goto err;
-        }
-    }
-
-    if (out) {
-        gost_init(&cctx, param->sblock);
-        keyWrapCryptoPro(&cctx, shared_key, ukm, key, crypted_key);
-    }
-    gkt = GOST_KEY_TRANSPORT_new();
-    if (!gkt) {
-        goto memerr;
-    }
-    if (!ASN1_OCTET_STRING_set(gkt->key_agreement_info->eph_iv, ukm, 8)) {
-        goto memerr;
-    }
-    if (!ASN1_OCTET_STRING_set(gkt->key_info->imit, crypted_key + 40, 4)) {
-        goto memerr;
-    }
-    if (!ASN1_OCTET_STRING_set
-        (gkt->key_info->encrypted_key, crypted_key + 8, 32)) {
-        goto memerr;
-    }
-    if (key_is_ephemeral) {
-        if (!X509_PUBKEY_set
-            (&gkt->key_agreement_info->ephem_key, out ? mykey : pubk)) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT,
-                    GOST_R_CANNOT_PACK_EPHEMERAL_KEY);
-            goto err;
-        }
-        if (out)
-            EVP_PKEY_free(mykey);
-    }
-    ASN1_OBJECT_free(gkt->key_agreement_info->cipher);
-    gkt->key_agreement_info->cipher = OBJ_nid2obj(param->nid);
-    tmp_outlen = i2d_GOST_KEY_TRANSPORT(gkt, out ? &out : NULL);
-    if (tmp_outlen <= 0) {
-        GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT,
-                GOST_R_ERROR_PACKING_KEY_TRANSPORT_INFO);
-        goto err;
-    }
-    *outlen = tmp_outlen;
-    if (!key_is_ephemeral) {
-        /* Set control "public key from client certificate used" */
-        if (EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 3, NULL) <=
-            0) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT, GOST_R_CTRL_CALL_FAILED);
-            goto err;
-        }
-    }
-    GOST_KEY_TRANSPORT_free(gkt);
-    return 1;
- memerr:
-    if (key_is_ephemeral) {
-        EVP_PKEY_free(mykey);
-    }
-    GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT, ERR_R_MALLOC_FAILURE);
- err:
-    GOST_KEY_TRANSPORT_free(gkt);
-    return -1;
-}
-
-/*
- * EVP_PLEY_METHOD callback decrypt for GOST R 34.10-94 cryptopro
- * modification
- */
-int pkey_GOST94cp_decrypt(EVP_PKEY_CTX *ctx, unsigned char *key,
-                          size_t *key_len, const unsigned char *in,
-                          size_t in_len)
-{
-    const unsigned char *p = in;
-    GOST_KEY_TRANSPORT *gkt = NULL;
-    unsigned char wrappedKey[44];
-    unsigned char sharedKey[32];
-    gost_ctx cctx;
-    const struct gost_cipher_info *param = NULL;
-    EVP_PKEY *eph_key = NULL, *peerkey = NULL;
-    EVP_PKEY *priv = EVP_PKEY_CTX_get0_pkey(ctx);
-
-    if (!key) {
-        *key_len = 32;
-        return 1;
-    }
-
-    gkt = d2i_GOST_KEY_TRANSPORT(NULL, (const unsigned char **)&p, in_len);
-    if (!gkt) {
-        GOSTerr(GOST_F_PKEY_GOST94CP_DECRYPT,
-                GOST_R_ERROR_PARSING_KEY_TRANSPORT_INFO);
-        return 0;
-    }
-    eph_key = X509_PUBKEY_get(gkt->key_agreement_info->ephem_key);
-    if (eph_key) {
-        if (EVP_PKEY_derive_set_peer(ctx, eph_key) <= 0) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_DECRYPT,
-                    GOST_R_INCOMPATIBLE_PEER_KEY);
-            goto err;
-        }
-    } else {
-        /* Set control "public key from client certificate used" */
-        if (EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 3, NULL) <=
-            0) {
-            GOSTerr(GOST_F_PKEY_GOST94CP_DECRYPT, GOST_R_CTRL_CALL_FAILED);
-            goto err;
-        }
-    }
-    peerkey = EVP_PKEY_CTX_get0_peerkey(ctx);
-    if (!peerkey) {
-        GOSTerr(GOST_F_PKEY_GOST94CP_DECRYPT, GOST_R_NO_PEER_KEY);
-        goto err;
-    }
-
-    param = get_encryption_params(gkt->key_agreement_info->cipher);
-    if (!param) {
-        goto err;
-    }
-
-    gost_init(&cctx, param->sblock);
-    OPENSSL_assert(gkt->key_agreement_info->eph_iv->length == 8);
-    memcpy(wrappedKey, gkt->key_agreement_info->eph_iv->data, 8);
-    OPENSSL_assert(gkt->key_info->encrypted_key->length == 32);
-    memcpy(wrappedKey + 8, gkt->key_info->encrypted_key->data, 32);
-    OPENSSL_assert(gkt->key_info->imit->length == 4);
-    memcpy(wrappedKey + 40, gkt->key_info->imit->data, 4);
-    make_cp_exchange_key(gost_get0_priv_key(priv), peerkey, sharedKey);
-    if (!keyUnwrapCryptoPro(&cctx, sharedKey, wrappedKey, key)) {
-        GOSTerr(GOST_F_PKEY_GOST94CP_DECRYPT,
-                GOST_R_ERROR_COMPUTING_SHARED_KEY);
-        goto err;
-    }
-
-    EVP_PKEY_free(eph_key);
-    GOST_KEY_TRANSPORT_free(gkt);
-    return 1;
- err:
-    EVP_PKEY_free(eph_key);
-    GOST_KEY_TRANSPORT_free(gkt);
-    return -1;
-}
diff --git a/engines/ccgost/gost_ameth.c b/engines/ccgost/gost_ameth.c
index 5ca3a6e629..4f3bd90e81 100644
--- a/engines/ccgost/gost_ameth.c
+++ b/engines/ccgost/gost_ameth.c
@@ -16,23 +16,32 @@
 #ifndef OPENSSL_NO_CMS
 # include <openssl/cms.h>
 #endif
-#include "gost_params.h"
 #include "gost_lcl.h"
 #include "e_gost_err.h"
 
-int gost94_nid_by_params(DSA *p)
+
+/* Convert little-endian byte array into bignum */
+BIGNUM *hashsum2bn(const unsigned char *dgst)
 {
-    R3410_params *gost_params;
-    BIGNUM *q = BN_new();
-    for (gost_params = R3410_paramset; gost_params->q != NULL; gost_params++) {
-        BN_dec2bn(&q, gost_params->q);
-        if (!BN_cmp(q, p->q)) {
-            BN_free(q);
-            return gost_params->nid;
-        }
-    }
-    BN_free(q);
-    return NID_undef;
+    unsigned char buf[32];
+
+    BUF_reverse(buf, (unsigned char*)dgst, 32);
+    return BN_bin2bn(buf, 32, NULL);
+}
+
+/*
+ * Pack bignum into byte buffer of given size, filling all leading bytes by
+ * zeros
+ */
+int store_bignum(BIGNUM *bn, unsigned char *buf, int len)
+{
+    int bytes = BN_num_bytes(bn);
+
+    if (bytes > len)
+        return 0;
+    memset(buf, 0, len);
+    BN_bn2bin(bn, buf + len - bytes);
+    return 1;
 }
 
 static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key)
@@ -53,17 +62,6 @@ static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key)
             EC_GROUP_get_curve_name(EC_KEY_get0_group
                                     (EVP_PKEY_get0((EVP_PKEY *)key)));
         break;
-    case NID_id_GostR3410_94:
-        pkey_param_nid =
-            (int)gost94_nid_by_params(EVP_PKEY_get0((EVP_PKEY *)key));
-        if (pkey_param_nid == NID_undef) {
-            GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS,
-                    GOST_R_INVALID_GOST94_PARMSET);
-            ASN1_STRING_free(params);
-            params = NULL;
-            goto err;
-        }
-        break;
     }
     gkp->key_params = OBJ_nid2obj(pkey_param_nid);
     gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_94_CryptoProParamSet);
@@ -120,18 +118,6 @@ static int decode_gost_algor_params(EVP_PKEY *pkey, X509_ALGOR *palg)
         return 0;
     }
     switch (pkey_nid) {
-    case NID_id_GostR3410_94:
-        {
-            DSA *dsa = EVP_PKEY_get0(pkey);
-            if (!dsa) {
-                dsa = DSA_new();
-                if (!EVP_PKEY_assign(pkey, pkey_nid, dsa))
-                    return 0;
-            }
-            if (!fill_GOST94_params(dsa, param_nid))
-                return 0;
-            break;
-        }
     case NID_id_GostR3410_2001:
         {
             EC_KEY *ec = EVP_PKEY_get0(pkey);
@@ -151,18 +137,6 @@ static int decode_gost_algor_params(EVP_PKEY *pkey, X509_ALGOR *palg)
 static int gost_set_priv_key(EVP_PKEY *pkey, BIGNUM *priv)
 {
     switch (EVP_PKEY_base_id(pkey)) {
-    case NID_id_GostR3410_94:
-        {
-            DSA *dsa = EVP_PKEY_get0(pkey);
-            if (!dsa) {
-                dsa = DSA_new();
-                EVP_PKEY_assign(pkey, EVP_PKEY_base_id(pkey), dsa);
-            }
-            dsa->priv_key = BN_dup(priv);
-            if (!EVP_PKEY_missing_parameters(pkey))
-                gost94_compute_public(dsa);
-            break;
-        }
     case NID_id_GostR3410_2001:
         {
             EC_KEY *ec = EVP_PKEY_get0(pkey);
@@ -183,16 +157,6 @@ static int gost_set_priv_key(EVP_PKEY *pkey, BIGNUM *priv)
 BIGNUM *gost_get0_priv_key(const EVP_PKEY *pkey)
 {
     switch (EVP_PKEY_base_id(pkey)) {
-    case NID_id_GostR3410_94:
-        {
-            DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pkey);
-            if (!dsa) {
-                return NULL;
-            }
-            if (!dsa->priv_key)
-                return NULL;
-            return dsa->priv_key;
-        }
     case NID_id_GostR3410_2001:
         {
             EC_KEY *ec = EVP_PKEY_get0((EVP_PKEY *)pkey);
@@ -277,11 +241,6 @@ static int pkey_ctrl_gost(EVP_PKEY *pkey, int op, long arg1, void *arg2)
 }
 
 /* --------------------- free functions * ------------------------------*/
-static void pkey_free_gost94(EVP_PKEY *key)
-{
-    DSA_free(key->pkey.dsa);
-}
-
 static void pkey_free_gost01(EVP_PKEY *key)
 {
     EC_KEY_free(key->pkey.ec);
@@ -355,58 +314,6 @@ static int priv_encode_gost(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk)
 }
 
 /* --------- printing keys --------------------------------*/
-static int print_gost_94(BIO *out, const EVP_PKEY *pkey, int indent,
-                         ASN1_PCTX *pctx, int type)
-{
-    int param_nid = NID_undef;
-
-    if (type == 2) {
-        BIGNUM *key;
-
-        if (!BIO_indent(out, indent, 128))
-            return 0;
-        BIO_printf(out, "Private key: ");
-        key = gost_get0_priv_key(pkey);
-        if (!key)
-            BIO_printf(out, "<undefined>");
-        else
-            BN_print(out, key);
-        BIO_printf(out, "\n");
-    }
-    if (type >= 1) {
-        BIGNUM *pubkey;
-
-        pubkey = ((DSA *)EVP_PKEY_get0((EVP_PKEY *)pkey))->pub_key;
-        BIO_indent(out, indent, 128);
-        BIO_printf(out, "Public key: ");
-        BN_print(out, pubkey);
-        BIO_printf(out, "\n");
-    }
-
-    param_nid = gost94_nid_by_params(EVP_PKEY_get0((EVP_PKEY *)pkey));
-    BIO_indent(out, indent, 128);
-    BIO_printf(out, "Parameter set: %s\n", OBJ_nid2ln(param_nid));
-    return 1;
-}
-
-static int param_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
-                              ASN1_PCTX *pctx)
-{
-    return print_gost_94(out, pkey, indent, pctx, 0);
-}
-
-static int pub_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
-                            ASN1_PCTX *pctx)
-{
-    return print_gost_94(out, pkey, indent, pctx, 1);
-}
-
-static int priv_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
-                             ASN1_PCTX *pctx)
-{
-    return print_gost_94(out, pkey, indent, pctx, 2);
-}
-
 static int print_gost_01(BIO *out, const EVP_PKEY *pkey, int indent,
                          ASN1_PCTX *pctx, int type)
 {
@@ -489,16 +396,6 @@ static int priv_print_gost01(BIO *out, const EVP_PKEY *pkey, int indent,
 }
 
 /* ---------------------------------------------------------------------*/
-static int param_missing_gost94(const EVP_PKEY *pk)
-{
-    const DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pk);
-    if (!dsa)
-        return 1;
-    if (!dsa->q)
-        return 1;
-    return 0;
-}
-
 static int param_missing_gost01(const EVP_PKEY *pk)
 {
     const EC_KEY *ec = EVP_PKEY_get0((EVP_PKEY *)pk);
@@ -509,33 +406,6 @@ static int param_missing_gost01(const EVP_PKEY *pk)
     return 0;
 }
 
-static int param_copy_gost94(EVP_PKEY *to, const EVP_PKEY *from)
-{
-    const DSA *dfrom = EVP_PKEY_get0((EVP_PKEY *)from);
-    DSA *dto = EVP_PKEY_get0(to);
-    if (EVP_PKEY_base_id(from) != EVP_PKEY_base_id(to)) {
-        GOSTerr(GOST_F_PARAM_COPY_GOST94, GOST_R_INCOMPATIBLE_ALGORITHMS);
-        return 0;
-    }
-    if (!dfrom) {
-        GOSTerr(GOST_F_PARAM_COPY_GOST94, GOST_R_KEY_PARAMETERS_MISSING);
-        return 0;
-    }
-    if (!dto) {
-        dto = DSA_new();
-        EVP_PKEY_assign(to, EVP_PKEY_base_id(from), dto);
-    }
-    BN_free(dto->p);
-    dto->p = BN_dup(dfrom->p);
-    BN_free(dto->q);
-    dto->q = BN_dup(dfrom->q);
-    BN_free(dto->g);
-    dto->g = BN_dup(dfrom->g);
-
-    if (dto->priv_key)
-        gost94_compute_public(dto);
-    return 1;
-}
 
 static int param_copy_gost01(EVP_PKEY *to, const EVP_PKEY *from)
 {
@@ -570,15 +440,6 @@ static int param_copy_gost01(EVP_PKEY *to, const EVP_PKEY *from)
     return 1;
 }
 
-static int param_cmp_gost94(const EVP_PKEY *a, const EVP_PKEY *b)
-{
-    const DSA *da = EVP_PKEY_get0((EVP_PKEY *)a);
-    const DSA *db = EVP_PKEY_get0((EVP_PKEY *)b);
-    if (!BN_cmp(da->q, db->q))
-        return 1;
-    return 0;
-}
-
 static int param_cmp_gost01(const EVP_PKEY *a, const EVP_PKEY *b)
 {
     if (EC_GROUP_get_curve_name
@@ -592,84 +453,6 @@ static int param_cmp_gost01(const EVP_PKEY *a, const EVP_PKEY *b)
 }
 
 /* ---------- Public key functions * --------------------------------------*/
-static int pub_decode_gost94(EVP_PKEY *pk, X509_PUBKEY *pub)
-{
-    X509_ALGOR *palg = NULL;
-    const unsigned char *pubkey_buf = NULL;
-    unsigned char *databuf;
-    ASN1_OBJECT *palgobj = NULL;
-    int pub_len, i, j;
-    DSA *dsa;
-    ASN1_OCTET_STRING *octet = NULL;
-
-    if (!X509_PUBKEY_get0_param(&palgobj, &pubkey_buf, &pub_len, &palg, pub))
-        return 0;
-    EVP_PKEY_assign(pk, OBJ_obj2nid(palgobj), NULL);
-    if (!decode_gost_algor_params(pk, palg))
-        return 0;
-    octet = d2i_ASN1_OCTET_STRING(NULL, &pubkey_buf, pub_len);
-    if (!octet) {
-        GOSTerr(GOST_F_PUB_DECODE_GOST94, ERR_R_MALLOC_FAILURE);
-        return 0;
-    }
-    databuf = OPENSSL_malloc(octet->length);
-    if (databuf == NULL) {
-        GOSTerr(GOST_F_PUB_DECODE_GOST94, ERR_R_MALLOC_FAILURE);
-        ASN1_OCTET_STRING_free(octet);
-        return 0;
-    }
-    for (i = 0, j = octet->length - 1; i < octet->length; i++, j--) {
-        databuf[j] = octet->data[i];
-    }
-    dsa = EVP_PKEY_get0(pk);
-    dsa->pub_key = BN_bin2bn(databuf, octet->length, NULL);
-    ASN1_OCTET_STRING_free(octet);
-    OPENSSL_free(databuf);
-    return 1;
-
-}
-
-static int pub_encode_gost94(X509_PUBKEY *pub, const EVP_PKEY *pk)
-{
-    ASN1_OBJECT *algobj = NULL;
-    ASN1_OCTET_STRING *octet = NULL;
-    void *pval = NULL;
-    unsigned char *buf = NULL, *databuf, *sptr;
-    int i, j, data_len, ret = 0;
-
-    int ptype = V_ASN1_UNDEF;
-    DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pk);
-    algobj = OBJ_nid2obj(EVP_PKEY_base_id(pk));
-    if (pk->save_parameters) {
-        ASN1_STRING *params = encode_gost_algor_params(pk);
-        pval = params;
-        ptype = V_ASN1_SEQUENCE;
-    }
-    data_len = BN_num_bytes(dsa->pub_key);
-    databuf = OPENSSL_malloc(data_len);
-    if (databuf == NULL) {
-        GOSTerr(GOST_F_PUB_ENCODE_GOST94, ERR_R_MALLOC_FAILURE);
-        return 0;
-    }
-    BN_bn2bin(dsa->pub_key, databuf);
-    octet = ASN1_OCTET_STRING_new();
-    if (octet == NULL) {
-        GOSTerr(GOST_F_PUB_ENCODE_GOST94, ERR_R_MALLOC_FAILURE);
-        OPENSSL_free(databuf);
-        return 0;
-    }
-    ASN1_STRING_set(octet, NULL, data_len);
-    sptr = ASN1_STRING_data(octet);
-    for (i = 0, j = data_len - 1; i < data_len; i++, j--) {
-