1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/ecdsa/ecdsa.h */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/** 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * \file crypto/ecdsa/ecdsa.h Include file for the OpenSSL ECDSA functions 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * \author Written by Nils Larsch for the OpenSSL project 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 7221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef HEADER_ECDSA_H 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define HEADER_ECDSA_H 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/opensslconf.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef OPENSSL_NO_ECDSA 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#error ECDSA is disabled. 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/ec.h> 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/ossl_typ.h> 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DEPRECATED 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/bn.h> 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef __cplusplus 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectextern "C" { 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecttypedef struct ECDSA_SIG_st 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM *r; 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM *s; 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } ECDSA_SIG; 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 84221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Allocates and initialize a ECDSA_SIG structure 85221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectECDSA_SIG *ECDSA_SIG_new(void); 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 89221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** frees a ECDSA_SIG structure 90221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig pointer to the ECDSA_SIG structure 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 92221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid ECDSA_SIG_free(ECDSA_SIG *sig); 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 94221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** DER encode content of ECDSA_SIG object (note: this function modifies *pp 95221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * (*pp += length of the DER encoded signature)). 96221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig pointer to the ECDSA_SIG object 97221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param pp pointer to a unsigned char pointer for the output or NULL 98221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return the length of the DER encoded ECDSA_SIG object or 0 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 100221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromint i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 102221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Decodes a DER encoded ECDSA signature (note: this function changes *pp 103221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * (*pp += len)). 104221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig pointer to ECDSA_SIG pointer (may be NULL) 105221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param pp memory buffer with the DER encoded signature 106221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param len length of the buffer 107221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return pointer to the decoded ECDSA_SIG structure (or NULL) 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 109221304ee937bc0910948a8be1320cb8cc4eb6d36Brian CarlstromECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 111221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Computes the ECDSA signature of the given hash value using 112221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * the supplied private key and returns the created signature. 113221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value 114221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst_len length of the hash value 115221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a private EC key 116221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,int dgst_len,EC_KEY *eckey); 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 120221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Computes ECDSA signature of a given hash value using the supplied 121221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 122221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value to sign 123221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgstlen length of the hash value 124221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param kinv BIGNUM with a pre-computed inverse k (optional) 125221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param rp BIGNUM with a pre-computed rp value (optioanl), 126221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * see ECDSA_sign_setup 127221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a private EC key 128221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 133221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Verifies that the supplied signature is a valid ECDSA 134221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * signature of the supplied hash value using the supplied public key. 135221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value 136221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst_len length of the hash value 137221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig ECDSA_SIG structure 138221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a public EC key 139221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 if the signature is valid, 0 if the signature is invalid 140221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * and -1 on error 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_do_verify(const unsigned char *dgst, int dgst_len, 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ECDSA_SIG *sig, EC_KEY* eckey); 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectconst ECDSA_METHOD *ECDSA_OpenSSL(void); 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 147221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Sets the default ECDSA method 148221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param meth new default ECDSA_METHOD 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid ECDSA_set_default_method(const ECDSA_METHOD *meth); 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 152221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Returns the default ECDSA method 153221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return pointer to ECDSA_METHOD structure containing the default method 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectconst ECDSA_METHOD *ECDSA_get_default_method(void); 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 157221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Sets method to be used for the ECDSA operations 158221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object 159221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param meth new method 160221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 on success and 0 otherwise 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth); 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 164221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Returns the maximum length of the DER encoded signature 165221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object 166221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return numbers of bytes required for the DER encoded signature 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_size(const EC_KEY *eckey); 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 170221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Precompute parts of the signing operation 171221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a private EC key 172221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param ctx BN_CTX object (optional) 173221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param kinv BIGNUM pointer for the inverse of k 174221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param rp BIGNUM pointer for x coordinate of k * generator 175221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 on success and 0 otherwise 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM **rp); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 180221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Computes ECDSA signature of a given hash value using the supplied 181221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 182221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param type this parameter is ignored 183221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value to sign 184221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgstlen length of the hash value 185221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig memory for the DER encoded created signature 186221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param siglen pointer to the length of the returned signature 187221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a private EC key 188221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 on success and 0 otherwise 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 194221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Computes ECDSA signature of a given hash value using the supplied 195221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 196221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param type this parameter is ignored 197221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value to sign 198221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgstlen length of the hash value 199221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig buffer to hold the DER encoded signature 200221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param siglen pointer to the length of the returned signature 201221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param kinv BIGNUM with a pre-computed inverse k (optional) 202221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param rp BIGNUM with a pre-computed rp value (optioanl), 203221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * see ECDSA_sign_setup 204221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a private EC key 205221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 on success and 0 otherwise 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv, 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const BIGNUM *rp, EC_KEY *eckey); 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 211221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/** Verifies that the given signature is valid ECDSA signature 212221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * of the supplied hash value using the specified public key. 213221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param type this parameter is ignored 214221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgst pointer to the hash value 215221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param dgstlen length of the hash value 216221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param sig pointer to the DER encoded signature 217221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param siglen length of the DER encoded signature 218221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \param eckey EC_KEY object containing a public EC key 219221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * \return 1 if the signature is valid, 0 if the signature is invalid 220221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * and -1 on error 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const unsigned char *sig, int siglen, EC_KEY *eckey); 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* the standard ex_data functions */ 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg); 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid *ECDSA_get_ex_data(EC_KEY *d, int idx); 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* BEGIN ERROR CODES */ 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* The following lines are auto generated by the script mkerr.pl. Any changes 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * made after this point may be overwritten when the script is next run. 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid ERR_load_ECDSA_strings(void); 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Error codes for the ECDSA functions. */ 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Function codes. */ 241392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define ECDSA_F_ECDSA_CHECK 104 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_F_ECDSA_DATA_NEW_METHOD 100 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_F_ECDSA_DO_SIGN 101 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_F_ECDSA_DO_VERIFY 102 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_F_ECDSA_SIGN_SETUP 103 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Reason codes. */ 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_BAD_SIGNATURE 100 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_ERR_EC_LIB 102 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_MISSING_PARAMETERS 103 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_NEED_NEW_SETUP_VALUES 106 25323b9568fd705172c870175f42556ae21861da399Adam Langley#define ECDSA_R_NONCE_CANNOT_BE_PRECOMPUTED 108 254392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define ECDSA_R_NON_FIPS_METHOD 107 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ECDSA_R_SIGNATURE_MALLOC_FAILED 105 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef __cplusplus 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 262