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| 1 /* crypto/ecdsa/ecdsa.h */ | |
| 2 /** | |
| 3 * \file crypto/ecdsa/ecdsa.h Include file for the OpenSSL ECDSA functions | |
| 4 * \author Written by Nils Larsch for the OpenSSL project | |
| 5 */ | |
| 6 /* ==================================================================== | |
| 7 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. | |
| 8 * | |
| 9 * Redistribution and use in source and binary forms, with or without | |
| 10 * modification, are permitted provided that the following conditions | |
| 11 * are met: | |
| 12 * | |
| 13 * 1. Redistributions of source code must retain the above copyright | |
| 14 * notice, this list of conditions and the following disclaimer. | |
| 15 * | |
| 16 * 2. Redistributions in binary form must reproduce the above copyright | |
| 17 * notice, this list of conditions and the following disclaimer in | |
| 18 * the documentation and/or other materials provided with the | |
| 19 * distribution. | |
| 20 * | |
| 21 * 3. All advertising materials mentioning features or use of this | |
| 22 * software must display the following acknowledgment: | |
| 23 * "This product includes software developed by the OpenSSL Project | |
| 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 25 * | |
| 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 27 * endorse or promote products derived from this software without | |
| 28 * prior written permission. For written permission, please contact | |
| 29 * licensing@OpenSSL.org. | |
| 30 * | |
| 31 * 5. Products derived from this software may not be called "OpenSSL" | |
| 32 * nor may "OpenSSL" appear in their names without prior written | |
| 33 * permission of the OpenSSL Project. | |
| 34 * | |
| 35 * 6. Redistributions of any form whatsoever must retain the following | |
| 36 * acknowledgment: | |
| 37 * "This product includes software developed by the OpenSSL Project | |
| 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 39 * | |
| 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 51 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 52 * ==================================================================== | |
| 53 * | |
| 54 * This product includes cryptographic software written by Eric Young | |
| 55 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 56 * Hudson (tjh@cryptsoft.com). | |
| 57 * | |
| 58 */ | |
| 59 #ifndef HEADER_ECDSA_H | |
| 60 #define HEADER_ECDSA_H | |
| 61 | |
| 62 #include <openssl/opensslconf.h> | |
| 63 | |
| 64 #ifdef OPENSSL_NO_ECDSA | |
| 65 #error ECDSA is disabled. | |
| 66 #endif | |
| 67 | |
| 68 #include <openssl/ec.h> | |
| 69 #include <openssl/ossl_typ.h> | |
| 70 #ifndef OPENSSL_NO_DEPRECATED | |
| 71 #include <openssl/bn.h> | |
| 72 #endif | |
| 73 | |
| 74 #ifdef __cplusplus | |
| 75 extern "C" { | |
| 76 #endif | |
| 77 | |
| 78 typedef struct ECDSA_SIG_st | |
| 79 { | |
| 80 BIGNUM *r; | |
| 81 BIGNUM *s; | |
| 82 } ECDSA_SIG; | |
| 83 | |
| 84 /** Allocates and initialize a ECDSA_SIG structure | |
| 85 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
| 86 */ | |
| 87 ECDSA_SIG *ECDSA_SIG_new(void); | |
| 88 | |
| 89 /** frees a ECDSA_SIG structure | |
| 90 * \param sig pointer to the ECDSA_SIG structure | |
| 91 */ | |
| 92 void ECDSA_SIG_free(ECDSA_SIG *sig); | |
| 93 | |
| 94 /** DER encode content of ECDSA_SIG object (note: this function modifies *pp | |
| 95 * (*pp += length of the DER encoded signature)). | |
| 96 * \param sig pointer to the ECDSA_SIG object | |
| 97 * \param pp pointer to a unsigned char pointer for the output or NULL | |
| 98 * \return the length of the DER encoded ECDSA_SIG object or 0 | |
| 99 */ | |
| 100 int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); | |
| 101 | |
| 102 /** Decodes a DER encoded ECDSA signature (note: this function changes *pp | |
| 103 * (*pp += len)). | |
| 104 * \param sig pointer to ECDSA_SIG pointer (may be NULL) | |
| 105 * \param pp memory buffer with the DER encoded signature | |
| 106 * \param len length of the buffer | |
| 107 * \return pointer to the decoded ECDSA_SIG structure (or NULL) | |
| 108 */ | |
| 109 ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); | |
| 110 | |
| 111 /** Computes the ECDSA signature of the given hash value using | |
| 112 * the supplied private key and returns the created signature. | |
| 113 * \param dgst pointer to the hash value | |
| 114 * \param dgst_len length of the hash value | |
| 115 * \param eckey EC_KEY object containing a private EC key | |
| 116 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
| 117 */ | |
| 118 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,int dgst_len,EC_KEY *eckey); | |
| 119 | |
| 120 /** Computes ECDSA signature of a given hash value using the supplied | |
| 121 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
| 122 * \param dgst pointer to the hash value to sign | |
| 123 * \param dgstlen length of the hash value | |
| 124 * \param kinv BIGNUM with a pre-computed inverse k (optional) | |
| 125 * \param rp BIGNUM with a pre-computed rp value (optioanl), | |
| 126 * see ECDSA_sign_setup | |
| 127 * \param eckey EC_KEY object containing a private EC key | |
| 128 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
| 129 */ | |
| 130 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, | |
| 131 const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); | |
| 132 | |
| 133 /** Verifies that the supplied signature is a valid ECDSA | |
| 134 * signature of the supplied hash value using the supplied public key. | |
| 135 * \param dgst pointer to the hash value | |
| 136 * \param dgst_len length of the hash value | |
| 137 * \param sig ECDSA_SIG structure | |
| 138 * \param eckey EC_KEY object containing a public EC key | |
| 139 * \return 1 if the signature is valid, 0 if the signature is invalid | |
| 140 * and -1 on error | |
| 141 */ | |
| 142 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, | |
| 143 const ECDSA_SIG *sig, EC_KEY* eckey); | |
| 144 | |
| 145 const ECDSA_METHOD *ECDSA_OpenSSL(void); | |
| 146 | |
| 147 /** Sets the default ECDSA method | |
| 148 * \param meth new default ECDSA_METHOD | |
| 149 */ | |
| 150 void ECDSA_set_default_method(const ECDSA_METHOD *meth); | |
| 151 | |
| 152 /** Returns the default ECDSA method | |
| 153 * \return pointer to ECDSA_METHOD structure containing the default method | |
| 154 */ | |
| 155 const ECDSA_METHOD *ECDSA_get_default_method(void); | |
| 156 | |
| 157 /** Sets method to be used for the ECDSA operations | |
| 158 * \param eckey EC_KEY object | |
| 159 * \param meth new method | |
| 160 * \return 1 on success and 0 otherwise | |
| 161 */ | |
| 162 int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth); | |
| 163 | |
| 164 /** Returns the maximum length of the DER encoded signature | |
| 165 * \param eckey EC_KEY object | |
| 166 * \return numbers of bytes required for the DER encoded signature | |
| 167 */ | |
| 168 int ECDSA_size(const EC_KEY *eckey); | |
| 169 | |
| 170 /** Precompute parts of the signing operation | |
| 171 * \param eckey EC_KEY object containing a private EC key | |
| 172 * \param ctx BN_CTX object (optional) | |
| 173 * \param kinv BIGNUM pointer for the inverse of k | |
| 174 * \param rp BIGNUM pointer for x coordinate of k * generator | |
| 175 * \return 1 on success and 0 otherwise | |
| 176 */ | |
| 177 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, | |
| 178 BIGNUM **rp); | |
| 179 | |
| 180 /** Computes ECDSA signature of a given hash value using the supplied | |
| 181 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
| 182 * \param type this parameter is ignored | |
| 183 * \param dgst pointer to the hash value to sign | |
| 184 * \param dgstlen length of the hash value | |
| 185 * \param sig memory for the DER encoded created signature | |
| 186 * \param siglen pointer to the length of the returned signature | |
| 187 * \param eckey EC_KEY object containing a private EC key | |
| 188 * \return 1 on success and 0 otherwise | |
| 189 */ | |
| 190 int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, | |
| 191 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); | |
| 192 | |
| 193 | |
| 194 /** Computes ECDSA signature of a given hash value using the supplied | |
| 195 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
| 196 * \param type this parameter is ignored | |
| 197 * \param dgst pointer to the hash value to sign | |
| 198 * \param dgstlen length of the hash value | |
| 199 * \param sig buffer to hold the DER encoded signature | |
| 200 * \param siglen pointer to the length of the returned signature | |
| 201 * \param kinv BIGNUM with a pre-computed inverse k (optional) | |
| 202 * \param rp BIGNUM with a pre-computed rp value (optioanl), | |
| 203 * see ECDSA_sign_setup | |
| 204 * \param eckey EC_KEY object containing a private EC key | |
| 205 * \return 1 on success and 0 otherwise | |
| 206 */ | |
| 207 int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, | |
| 208 unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv, | |
| 209 const BIGNUM *rp, EC_KEY *eckey); | |
| 210 | |
| 211 /** Verifies that the given signature is valid ECDSA signature | |
| 212 * of the supplied hash value using the specified public key. | |
| 213 * \param type this parameter is ignored | |
| 214 * \param dgst pointer to the hash value | |
| 215 * \param dgstlen length of the hash value | |
| 216 * \param sig pointer to the DER encoded signature | |
| 217 * \param siglen length of the DER encoded signature | |
| 218 * \param eckey EC_KEY object containing a public EC key | |
| 219 * \return 1 if the signature is valid, 0 if the signature is invalid | |
| 220 * and -1 on error | |
| 221 */ | |
| 222 int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, | |
| 223 const unsigned char *sig, int siglen, EC_KEY *eckey); | |
| 224 | |
| 225 /* the standard ex_data functions */ | |
| 226 int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new | |
| 227 *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); | |
| 228 int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg); | |
| 229 void *ECDSA_get_ex_data(EC_KEY *d, int idx); | |
| 230 | |
| 231 | |
| 232 /* BEGIN ERROR CODES */ | |
| 233 /* The following lines are auto generated by the script mkerr.pl. Any changes | |
| 234 * made after this point may be overwritten when the script is next run. | |
| 235 */ | |
| 236 void ERR_load_ECDSA_strings(void); | |
| 237 | |
| 238 /* Error codes for the ECDSA functions. */ | |
| 239 | |
| 240 /* Function codes. */ | |
| 241 #define ECDSA_F_ECDSA_CHECK 104 | |
| 242 #define ECDSA_F_ECDSA_DATA_NEW_METHOD 100 | |
| 243 #define ECDSA_F_ECDSA_DO_SIGN 101 | |
| 244 #define ECDSA_F_ECDSA_DO_VERIFY 102 | |
| 245 #define ECDSA_F_ECDSA_SIGN_SETUP 103 | |
| 246 | |
| 247 /* Reason codes. */ | |
| 248 #define ECDSA_R_BAD_SIGNATURE 100 | |
| 249 #define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101 | |
| 250 #define ECDSA_R_ERR_EC_LIB 102 | |
| 251 #define ECDSA_R_MISSING_PARAMETERS 103 | |
| 252 #define ECDSA_R_NEED_NEW_SETUP_VALUES 106 | |
| 253 #define ECDSA_R_NON_FIPS_METHOD 107 | |
| 254 #define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104 | |
| 255 #define ECDSA_R_SIGNATURE_MALLOC_FAILED 105 | |
| 256 | |
| 257 #ifdef __cplusplus | |
| 258 } | |
| 259 #endif | |
| 260 #endif | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master