diff options
Diffstat (limited to 'engines/ccgost/gost_pmeth.c')
| -rw-r--r-- | engines/ccgost/gost_pmeth.c | 510 |
1 files changed, 0 insertions, 510 deletions
diff --git a/engines/ccgost/gost_pmeth.c b/engines/ccgost/gost_pmeth.c deleted file mode 100644 index 7381c957fb..0000000000 --- a/engines/ccgost/gost_pmeth.c +++ /dev/null @@ -1,510 +0,0 @@ -/********************************************************************** - * gost_pmeth.c * - * Copyright (c) 2005-2006 Cryptocom LTD * - * This file is distributed under the same license as OpenSSL * - * * - * Implementation of RFC 4357 (GOST R 34.10) Publick key method * - * for OpenSSL * - * Requires OpenSSL 0.9.9 for compilation * - **********************************************************************/ -#include <openssl/evp.h> -#include <openssl/objects.h> -#include <openssl/ec.h> -#include <openssl/err.h> -#include <openssl/x509v3.h> /* For string_to_hex */ -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include "gost_lcl.h" -#include "e_gost_err.h" -/* -----init, cleanup, copy - uniform for all algs ---------------*/ -/* Allocates new gost_pmeth_data structure and assigns it as data */ -static int pkey_gost_init(EVP_PKEY_CTX *ctx) -{ - struct gost_pmeth_data *data; - EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx); - - data = OPENSSL_zalloc(sizeof(*data)); - if (!data) - return 0; - if (pkey && EVP_PKEY_get0(pkey)) { - switch (EVP_PKEY_base_id(pkey)) { - case NID_id_GostR3410_2001: - data->sign_param_nid = - EC_GROUP_get_curve_name(EC_KEY_get0_group - (EVP_PKEY_get0((EVP_PKEY *)pkey))); - break; - default: - return 0; - } - } - EVP_PKEY_CTX_set_data(ctx, data); - return 1; -} - -/* Copies contents of gost_pmeth_data structure */ -static int pkey_gost_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) -{ - struct gost_pmeth_data *dst_data, *src_data; - if (!pkey_gost_init(dst)) { - return 0; - } - src_data = EVP_PKEY_CTX_get_data(src); - dst_data = EVP_PKEY_CTX_get_data(dst); - *dst_data = *src_data; - if (src_data->shared_ukm) { - dst_data->shared_ukm = NULL; - } - return 1; -} - -/* Frees up gost_pmeth_data structure */ -static void pkey_gost_cleanup(EVP_PKEY_CTX *ctx) -{ - struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx); - - OPENSSL_free(data->shared_ukm); - OPENSSL_free(data); -} - -/* --------------------- control functions ------------------------------*/ -static int pkey_gost_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) -{ - struct gost_pmeth_data *pctx = - (struct gost_pmeth_data *)EVP_PKEY_CTX_get_data(ctx); - switch (type) { - case EVP_PKEY_CTRL_MD: - { - if (EVP_MD_type((const EVP_MD *)p2) != NID_id_GostR3411_94) { - GOSTerr(GOST_F_PKEY_GOST_CTRL, GOST_R_INVALID_DIGEST_TYPE); - return 0; - } - pctx->md = (EVP_MD *)p2; - return 1; - } - - case EVP_PKEY_CTRL_GET_MD: - *(const EVP_MD **)p2 = pctx->md; - return 1; - - case EVP_PKEY_CTRL_PKCS7_ENCRYPT: - case EVP_PKEY_CTRL_PKCS7_DECRYPT: - case EVP_PKEY_CTRL_PKCS7_SIGN: - case EVP_PKEY_CTRL_DIGESTINIT: -#ifndef OPENSSL_NO_CMS - case EVP_PKEY_CTRL_CMS_ENCRYPT: - case EVP_PKEY_CTRL_CMS_DECRYPT: - case EVP_PKEY_CTRL_CMS_SIGN: -#endif - return 1; - - case EVP_PKEY_CTRL_GOST_PARAMSET: - pctx->sign_param_nid = (int)p1; - return 1; - case EVP_PKEY_CTRL_SET_IV: - pctx->shared_ukm = OPENSSL_malloc((int)p1); - if (pctx->shared_ukm == NULL) { - GOSTerr(GOST_F_PKEY_GOST_CTRL, ERR_R_MALLOC_FAILURE); - return 0; - } - memcpy(pctx->shared_ukm, p2, (int)p1); - return 1; - case EVP_PKEY_CTRL_PEER_KEY: - if (p1 == 0 || p1 == 1) /* call from EVP_PKEY_derive_set_peer */ - return 1; - if (p1 == 2) /* TLS: peer key used? */ - return pctx->peer_key_used; - if (p1 == 3) /* TLS: peer key used! */ - return (pctx->peer_key_used = 1); - return -2; - } - return -2; -} - -static int pkey_gost_ctrl01_str(EVP_PKEY_CTX *ctx, - const char *type, const char *value) -{ - int param_nid = 0; - - if (strcmp(type, param_ctrl_string) == 0) { - if (!value) { - return 0; - } - if (strlen(value) == 1) { - switch (toupper((unsigned char)value[0])) { - case 'A': - param_nid = NID_id_GostR3410_2001_CryptoPro_A_ParamSet; - break; - case 'B': - param_nid = NID_id_GostR3410_2001_CryptoPro_B_ParamSet; - break; - case 'C': - param_nid = NID_id_GostR3410_2001_CryptoPro_C_ParamSet; - break; - case '0': - param_nid = NID_id_GostR3410_2001_TestParamSet; - break; - default: - return 0; - } - } else if ((strlen(value) == 2) - && (toupper((unsigned char)value[0]) == 'X')) { - switch (toupper((unsigned char)value[1])) { - case 'A': - param_nid = NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet; - break; - case 'B': - param_nid = NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet; - break; - default: - return 0; - } - } else { - R3410_2001_params *p = R3410_2001_paramset; - param_nid = OBJ_txt2nid(value); - if (param_nid == NID_undef) { - return 0; - } - for (; p->nid != NID_undef; p++) { - if (p->nid == param_nid) - break; - } - if (p->nid == NID_undef) { - GOSTerr(GOST_F_PKEY_GOST_CTRL01_STR, GOST_R_INVALID_PARAMSET); - return 0; - } - } - - return pkey_gost_ctrl(ctx, EVP_PKEY_CTRL_GOST_PARAMSET, - param_nid, NULL); - } - return -2; -} - -/* --------------------- key generation --------------------------------*/ - -static int pkey_gost_paramgen_init(EVP_PKEY_CTX *ctx) -{ - return 1; -} - -static int pkey_gost01_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) -{ - struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx); - EC_KEY *ec = NULL; - - if (data->sign_param_nid == NID_undef) { - GOSTerr(GOST_F_PKEY_GOST01_PARAMGEN, GOST_R_NO_PARAMETERS_SET); - return 0; - } - if (!ec) - ec = EC_KEY_new(); - if (!fill_GOST2001_params(ec, data->sign_param_nid)) { - EC_KEY_free(ec); - return 0; - } - EVP_PKEY_assign(pkey, NID_id_GostR3410_2001, ec); - return 1; -} - -/* Generates GOST_R3410 2001 key and assigns it using specified type */ -static int pkey_gost01cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) -{ - EC_KEY *ec; - if (!pkey_gost01_paramgen(ctx, pkey)) - return 0; - ec = EVP_PKEY_get0(pkey); - gost2001_keygen(ec); - return 1; -} - -/* ----------- sign callbacks --------------------------------------*/ -/* - * Packs signature according to Cryptopro rules - * and frees up DSA_SIG structure - */ -int pack_sign_cp(DSA_SIG *s, int order, unsigned char *sig, size_t *siglen) -{ - *siglen = 2 * order; - memset(sig, 0, *siglen); - store_bignum(s->s, sig, order); - store_bignum(s->r, sig + order, order); - DSA_SIG_free(s); - return 1; -} - - -static int pkey_gost01_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, - size_t *siglen, const unsigned char *tbs, - size_t tbs_len) -{ - DSA_SIG *unpacked_sig = NULL; - EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx); - if (!siglen) - return 0; - if (!sig) { - *siglen = 64; /* better to check size of curve order */ - return 1; - } - unpacked_sig = gost2001_do_sign(tbs, tbs_len, EVP_PKEY_get0(pkey)); - if (!unpacked_sig) { - return 0; - } - return pack_sign_cp(unpacked_sig, 32, sig, siglen); -} - -/* ------------------- verify callbacks ---------------------------*/ -/* Unpack signature according to cryptopro rules */ -DSA_SIG *unpack_cp_signature(const unsigned char *sig, size_t siglen) -{ - DSA_SIG *s; - - s = DSA_SIG_new(); - if (s == NULL) { - GOSTerr(GOST_F_UNPACK_CP_SIGNATURE, ERR_R_MALLOC_FAILURE); - return NULL; - } - s->s = BN_bin2bn(sig, siglen / 2, NULL); - s->r = BN_bin2bn(sig + siglen / 2, siglen / 2, NULL); - return s; -} - - -static int pkey_gost01_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, - size_t siglen, const unsigned char *tbs, - size_t tbs_len) -{ - int ok = 0; - EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx); - DSA_SIG *s = unpack_cp_signature(sig, siglen); - if (!s) - return 0; -#ifdef DEBUG_SIGN - fprintf(stderr, "R="); - BN_print_fp(stderr, s->r); - fprintf(stderr, "\nS="); - BN_print_fp(stderr, s->s); - fprintf(stderr, "\n"); -#endif - if (pub_key) - ok = gost2001_do_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key)); - DSA_SIG_free(s); - return ok; -} - -/* ------------- encrypt init -------------------------------------*/ -/* Generates ephermeral key */ -static int pkey_gost_encrypt_init(EVP_PKEY_CTX *ctx) -{ - return 1; -} - -/* --------------- Derive init ------------------------------------*/ -static int pkey_gost_derive_init(EVP_PKEY_CTX *ctx) -{ - return 1; -} - -/* -------- PKEY_METHOD for GOST MAC algorithm --------------------*/ -static int pkey_gost_mac_init(EVP_PKEY_CTX *ctx) -{ - struct gost_mac_pmeth_data *data = OPENSSL_zalloc(sizeof(*data)); - - if (!data) - return 0; - EVP_PKEY_CTX_set_data(ctx, data); - return 1; -} - -static void pkey_gost_mac_cleanup(EVP_PKEY_CTX *ctx) -{ - struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx); - OPENSSL_free(data); -} - -static int pkey_gost_mac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) -{ - struct gost_mac_pmeth_data *dst_data, *src_data; - if (!pkey_gost_mac_init(dst)) { - return 0; - } - src_data = EVP_PKEY_CTX_get_data(src); - dst_data = EVP_PKEY_CTX_get_data(dst); - *dst_data = *src_data; - return 1; -} - -static int pkey_gost_mac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) -{ - struct gost_mac_pmeth_data *data = - (struct gost_mac_pmeth_data *)EVP_PKEY_CTX_get_data(ctx); - - switch (type) { - case EVP_PKEY_CTRL_MD: - { - if (EVP_MD_type((const EVP_MD *)p2) != NID_id_Gost28147_89_MAC) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, - GOST_R_INVALID_DIGEST_TYPE); - return 0; - } - data->md = (EVP_MD *)p2; - return 1; - } - - case EVP_PKEY_CTRL_GET_MD: - *(const EVP_MD **)p2 = data->md; - return 1; - - case EVP_PKEY_CTRL_PKCS7_ENCRYPT: - case EVP_PKEY_CTRL_PKCS7_DECRYPT: - case EVP_PKEY_CTRL_PKCS7_SIGN: - return 1; - case EVP_PKEY_CTRL_SET_MAC_KEY: - if (p1 != 32) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH); - return 0; - } - - memcpy(data->key, p2, 32); - data->key_set = 1; - return 1; - case EVP_PKEY_CTRL_DIGESTINIT: - { - EVP_MD_CTX *mctx = p2; - void *key; - if (!data->key_set) { - EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx); - if (!pkey) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, - GOST_R_MAC_KEY_NOT_SET); - return 0; - } - key = EVP_PKEY_get0(pkey); - if (!key) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, - GOST_R_MAC_KEY_NOT_SET); - return 0; - } - } else { - key = &(data->key); - } - return EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(mctx)) - (mctx, EVP_MD_CTRL_SET_KEY, 32, key); - } - } - return -2; -} - -static int pkey_gost_mac_ctrl_str(EVP_PKEY_CTX *ctx, - const char *type, const char *value) -{ - if (strcmp(type, key_ctrl_string) == 0) { - if (strlen(value) != 32) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL_STR, - GOST_R_INVALID_MAC_KEY_LENGTH); - return 0; - } - return pkey_gost_mac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, - 32, (char *)value); - } - if (strcmp(type, hexkey_ctrl_string) == 0) { - long keylen; - int ret; - unsigned char *keybuf = string_to_hex(value, &keylen); - if (!keybuf || keylen != 32) { - GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL_STR, - GOST_R_INVALID_MAC_KEY_LENGTH); - OPENSSL_free(keybuf); - return 0; - } - ret = pkey_gost_mac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, 32, keybuf); - OPENSSL_free(keybuf); - return ret; - - } - return -2; -} - -static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) -{ - struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx); - unsigned char *keydata; - if (!data->key_set) { - GOSTerr(GOST_F_PKEY_GOST_MAC_KEYGEN, GOST_R_MAC_KEY_NOT_SET); - return 0; - } - keydata = OPENSSL_malloc(32); - if (keydata == NULL) - return 0; - memcpy(keydata, data->key, 32); - EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata); - return 1; -} - -static int pkey_gost_mac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) -{ - return 1; -} - -static int pkey_gost_mac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, - size_t *siglen, EVP_MD_CTX *mctx) -{ - unsigned int tmpsiglen = *siglen; /* for platforms where - * sizeof(int)!=sizeof(size_t) */ - int ret; - if (!sig) { - *siglen = 4; - return 1; - } - ret = EVP_DigestFinal_ex(mctx, sig, &tmpsiglen); - *siglen = tmpsiglen; - return ret; -} - -/* ----------------------------------------------------------------*/ -int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags) -{ - *pmeth = EVP_PKEY_meth_new(id, flags); - if (!*pmeth) - return 0; - - switch (id) { - case NID_id_GostR3410_2001: - EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_ctrl, pkey_gost_ctrl01_str); - EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost01_cp_sign); - EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost01_cp_verify); - - EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost01cp_keygen); - - EVP_PKEY_meth_set_encrypt(*pmeth, - pkey_gost_encrypt_init, - pkey_GOST01cp_encrypt); - EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST01cp_decrypt); - EVP_PKEY_meth_set_derive(*pmeth, - pkey_gost_derive_init, pkey_gost2001_derive); - EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init, - pkey_gost01_paramgen); - break; - case NID_id_Gost28147_89_MAC: - EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_mac_ctrl, - pkey_gost_mac_ctrl_str); - EVP_PKEY_meth_set_signctx(*pmeth, pkey_gost_mac_signctx_init, - pkey_gost_mac_signctx); - EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost_mac_keygen); - EVP_PKEY_meth_set_init(*pmeth, pkey_gost_mac_init); - EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_mac_cleanup); - EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_mac_copy); - return 1; - default: /* Unsupported method */ - return 0; - } - EVP_PKEY_meth_set_init(*pmeth, pkey_gost_init); - EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_cleanup); - - EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_copy); - /* - * FIXME derive etc... - */ - - return 1; -} |