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>

1 files changed, 0 insertions, 281 deletions

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;
-}