/* crypto/cbcmac/cbcm_pmeth.c */ /* ==================================================================== * Copyright (c) 2015-2016 The GmSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the GmSSL Project. * (http://gmssl.org/)" * * 4. The name "GmSSL Project" must not be used to endorse or promote * products derived from this software without prior written * permission. For written permission, please contact * guanzhi1980@gmail.com. * * 5. Products derived from this software may not be called "GmSSL" * nor may "GmSSL" appear in their names without prior written * permission of the GmSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the GmSSL Project * (http://gmssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * */ /* * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project * 2010. */ /* ==================================================================== * Copyright (c) 2010 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== */ #include #include "cryptlib.h" #include #include #include #include #include "evp_locl.h" static int pkey_cbcmac_init(EVP_PKEY_CTX *ctx) { ctx->data = CBCMAC_CTX_new(); if (!ctx->data) return 0; ctx->keygen_info_count = 0; return 1; } static int pkey_cbcmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) { if (!pkey_cbcmac_init(dst)) return 0; if (!CBCMAC_CTX_copy(dst->data, src->data)) return 0; return 1; } static void pkey_cbcmac_cleanup(EVP_PKEY_CTX *ctx) { CBCMAC_CTX_free(ctx->data); } static int pkey_cbcmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) { CBCMAC_CTX *cmkey = CBCMAC_CTX_new(); CBCMAC_CTX *cmctx = ctx->data; if (!cmkey) return 0; if (!CBCMAC_CTX_copy(cmkey, cmctx)) { CBCMAC_CTX_free(cmkey); return 0; } EVP_PKEY_assign(pkey, EVP_PKEY_CBCMAC, cmkey); return 1; } static int int_update(EVP_MD_CTX *ctx, const void *data, size_t count) { if (!CBCMAC_Update(ctx->pctx->data, data, count)) return 0; return 1; } static int cbcmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) { EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT); mctx->update = int_update; return 1; } static int cbcmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, EVP_MD_CTX *mctx) { return CBCMAC_Final(ctx->data, sig, siglen); } static int pkey_cbcmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) { CBCMAC_CTX *cmctx = ctx->data; switch (type) { case EVP_PKEY_CTRL_SET_MAC_KEY: if (!p2 || p1 < 0) return 0; if (!CBCMAC_Init(cmctx, p2, p1, NULL, NULL)) return 0; break; case EVP_PKEY_CTRL_CIPHER: if (!CBCMAC_Init(cmctx, NULL, 0, p2, ctx->engine)) return 0; break; case EVP_PKEY_CTRL_MD: if (ctx->pkey && !CBCMAC_CTX_copy(ctx->data, (CBCMAC_CTX *)ctx->pkey->pkey.ptr)) return 0; if (!CBCMAC_Init(cmctx, NULL, 0, NULL, NULL)) return 0; break; default: return -2; } return 1; } static int pkey_cbcmac_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) { if (!value) { return 0; } if (!strcmp(type, "key")) { void *p = (void *)value; return pkey_cbcmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, strlen(p), p); } if (!strcmp(type, "cipher")) { const EVP_CIPHER *c; c = EVP_get_cipherbyname(value); if (!c) return 0; return pkey_cbcmac_ctrl(ctx, EVP_PKEY_CTRL_CIPHER, -1, (void *)c); } if (!strcmp(type, "hexkey")) { unsigned char *key; int r; long keylen; key = string_to_hex(value, &keylen); if (!key) return 0; r = pkey_cbcmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key); OPENSSL_free(key); return r; } return -2; } const EVP_PKEY_METHOD cbcmac_pkey_meth = { EVP_PKEY_CBCMAC, EVP_PKEY_FLAG_SIGCTX_CUSTOM, pkey_cbcmac_init, pkey_cbcmac_copy, pkey_cbcmac_cleanup, 0, 0, 0, pkey_cbcmac_keygen, 0, 0, 0, 0, 0, 0, cbcmac_signctx_init, cbcmac_signctx, 0, 0, 0, 0, 0, 0, 0, 0, pkey_cbcmac_ctrl, pkey_cbcmac_ctrl_str };