/* ==================================================================== * Copyright (c) 1998-2005 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 * [email protected]. * * 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * ([email protected]). This product includes software written by Tim * Hudson ([email protected]). */ #include <openssl/ecdsa.h> #include <assert.h> #include <string.h> #include <openssl/bn.h> #include <openssl/err.h> #include <openssl/mem.h> #include <openssl/sha.h> #include "../../internal.h" #include "../bn/internal.h" #include "../ec/internal.h" #include "../service_indicator/internal.h" #include "internal.h" // digest_to_scalar interprets |digest_len| bytes from |digest| as a scalar for // ECDSA. static void digest_to_scalar(const EC_GROUP *group, EC_SCALAR *out, const uint8_t *digest, size_t digest_len) { … } int ecdsa_verify_fixed_no_self_test(const uint8_t *digest, size_t digest_len, const uint8_t *sig, size_t sig_len, const EC_KEY *eckey) { … } int ecdsa_verify_fixed(const uint8_t *digest, size_t digest_len, const uint8_t *sig, size_t sig_len, const EC_KEY *key) { … } static int ecdsa_sign_impl(const EC_GROUP *group, int *out_retry, uint8_t *sig, size_t *out_sig_len, size_t max_sig_len, const EC_SCALAR *priv_key, const EC_SCALAR *k, const uint8_t *digest, size_t digest_len) { … } int ecdsa_sign_fixed_with_nonce_for_known_answer_test( const uint8_t *digest, size_t digest_len, uint8_t *sig, size_t *out_sig_len, size_t max_sig_len, const EC_KEY *eckey, const uint8_t *nonce, size_t nonce_len) { … } int ecdsa_sign_fixed(const uint8_t *digest, size_t digest_len, uint8_t *sig, size_t *out_sig_len, size_t max_sig_len, const EC_KEY *eckey) { … }
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