/* $OpenBSD: ecdsa.h,v 1.16 2023/06/19 09:12:41 tb Exp $ */ /* * Written by Nils Larsch for the OpenSSL project */ /* ==================================================================== * Copyright (c) 2000-2005 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 * 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #ifndef HEADER_ECDSA_H #define HEADER_ECDSA_H #include #ifdef OPENSSL_NO_ECDSA #error ECDSA is disabled. #endif #include #include #include #ifdef __cplusplus extern "C" { #endif typedef struct ECDSA_SIG_st ECDSA_SIG; struct ecdsa_method { const char *name; ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len, const BIGNUM *inv, const BIGNUM *rp, EC_KEY *eckey); int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **r); int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len, const ECDSA_SIG *sig, EC_KEY *eckey); int flags; char *app_data; }; /* * If this flag is set, the ECDSA method is FIPS compliant and can be used * in FIPS mode. This is set in the validated module method. If an * application sets this flag in its own methods it is its responsibility * to ensure the result is compliant. */ #define ECDSA_FLAG_FIPS_METHOD 0x1 ECDSA_SIG *ECDSA_SIG_new(void); void ECDSA_SIG_free(ECDSA_SIG *sig); int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig); const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig); int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s); ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len, EC_KEY *eckey); ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, const ECDSA_SIG *sig, EC_KEY* eckey); const ECDSA_METHOD *ECDSA_OpenSSL(void); void ECDSA_set_default_method(const ECDSA_METHOD *meth); const ECDSA_METHOD *ECDSA_get_default_method(void); int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth); int ECDSA_size(const EC_KEY *eckey); int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp); int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, const unsigned char *sig, int siglen, EC_KEY *eckey); int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg); void *ECDSA_get_ex_data(EC_KEY *d, int idx); /* XXX should be in ec.h, but needs ECDSA_SIG */ void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth, int (*sign)(int type, const unsigned char *dgst, int dlen, unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *r, EC_KEY *eckey), int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp), ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, int dgst_len, const BIGNUM *in_kinv, const BIGNUM *in_r, EC_KEY *eckey)); void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth, int (*verify)(int type, const unsigned char *dgst, int dgst_len, const unsigned char *sigbuf, int sig_len, EC_KEY *eckey), int (*verify_sig)(const unsigned char *dgst, int dgst_len, const ECDSA_SIG *sig, EC_KEY *eckey)); void EC_KEY_METHOD_get_sign(const EC_KEY_METHOD *meth, int (**psign)(int type, const unsigned char *dgst, int dlen, unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *r, EC_KEY *eckey), int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp), ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, int dgst_len, const BIGNUM *in_kinv, const BIGNUM *in_r, EC_KEY *eckey)); void EC_KEY_METHOD_get_verify(const EC_KEY_METHOD *meth, int (**pverify)(int type, const unsigned char *dgst, int dgst_len, const unsigned char *sigbuf, int sig_len, EC_KEY *eckey), int (**pverify_sig)(const unsigned char *dgst, int dgst_len, const ECDSA_SIG *sig, EC_KEY *eckey)); void ERR_load_ECDSA_strings(void); /* Error codes for the ECDSA functions. */ /* Function codes. */ #define ECDSA_F_ECDSA_CHECK 104 #define ECDSA_F_ECDSA_DATA_NEW_METHOD 100 #define ECDSA_F_ECDSA_DO_SIGN 101 #define ECDSA_F_ECDSA_DO_VERIFY 102 #define ECDSA_F_ECDSA_SIGN_SETUP 103 /* Reason codes. */ #define ECDSA_R_BAD_SIGNATURE 100 #define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101 #define ECDSA_R_ERR_EC_LIB 102 #define ECDSA_R_MISSING_PARAMETERS 103 #define ECDSA_R_NEED_NEW_SETUP_VALUES 106 #define ECDSA_R_NON_FIPS_METHOD 107 #define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104 #define ECDSA_R_SIGNATURE_MALLOC_FAILED 105 #ifdef __cplusplus } #endif #endif