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103 changed files with 365 additions and 470 deletions
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@ -1,7 +1,6 @@
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/* $OpenBSD: ecdsa.h,v 1.15 2023/04/18 08:47:28 tb Exp $ */
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/**
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* \file crypto/ecdsa/ecdsa.h Include file for the OpenSSL ECDSA functions
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* \author Written by Nils Larsch for the OpenSSL project
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/* $OpenBSD: ecdsa.h,v 1.16 2023/06/19 09:12:41 tb Exp $ */
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/*
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* Written by Nils Larsch for the OpenSSL project
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*/
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/* ====================================================================
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* Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
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@ -88,7 +87,8 @@ struct ecdsa_method {
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char *app_data;
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};
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/* If this flag is set the ECDSA method is FIPS compliant and can be used
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/*
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* If this flag is set, the ECDSA method is FIPS compliant and can be used
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* in FIPS mode. This is set in the validated module method. If an
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* application sets this flag in its own methods it is its responsibility
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* to ensure the result is compliant.
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@ -96,172 +96,44 @@ struct ecdsa_method {
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#define ECDSA_FLAG_FIPS_METHOD 0x1
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/** Allocates and initialize a ECDSA_SIG structure
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* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
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*/
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ECDSA_SIG *ECDSA_SIG_new(void);
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/** frees a ECDSA_SIG structure
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* \param sig pointer to the ECDSA_SIG structure
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*/
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void ECDSA_SIG_free(ECDSA_SIG *sig);
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/** DER encode content of ECDSA_SIG object (note: this function modifies *pp
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* (*pp += length of the DER encoded signature)).
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* \param sig pointer to the ECDSA_SIG object
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* \param pp pointer to a unsigned char pointer for the output or NULL
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* \return the length of the DER encoded ECDSA_SIG object or 0
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*/
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int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
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/** Decodes a DER encoded ECDSA signature (note: this function changes *pp
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* (*pp += len)).
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* \param sig pointer to ECDSA_SIG pointer (may be NULL)
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* \param pp memory buffer with the DER encoded signature
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* \param len length of the buffer
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* \return pointer to the decoded ECDSA_SIG structure (or NULL)
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*/
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ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
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/** Accessor for r and s fields of ECDSA_SIG
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* \param sig pointer to ECDSA_SIG pointer
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* \param pr pointer to BIGNUM pointer for r (may be NULL)
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* \param ps pointer to BIGNUM pointer for s (may be NULL)
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*/
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void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
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const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig);
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const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig);
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/** Setter for r and s fields of ECDSA_SIG
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* \param sig pointer to ECDSA_SIG pointer
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* \param r pointer to BIGNUM for r (may be NULL)
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* \param s pointer to BIGNUM for s (may be NULL)
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*/
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int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);
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/** Computes the ECDSA signature of the given hash value using
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* the supplied private key and returns the created signature.
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* \param dgst pointer to the hash value
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* \param dgst_len length of the hash value
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* \param eckey EC_KEY object containing a private EC key
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* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
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*/
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ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len,
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EC_KEY *eckey);
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/** Computes ECDSA signature of a given hash value using the supplied
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* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
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* \param dgst pointer to the hash value to sign
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* \param dgstlen length of the hash value
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* \param kinv BIGNUM with a pre-computed inverse k (optional)
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* \param rp BIGNUM with a pre-computed rp value (optional),
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* see ECDSA_sign_setup
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* \param eckey EC_KEY object containing a private EC key
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* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
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*/
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ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen,
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const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);
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/** Verifies that the supplied signature is a valid ECDSA
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* signature of the supplied hash value using the supplied public key.
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* \param dgst pointer to the hash value
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* \param dgst_len length of the hash value
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* \param sig ECDSA_SIG structure
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* \param eckey EC_KEY object containing a public EC key
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* \return 1 if the signature is valid, 0 if the signature is invalid
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* and -1 on error
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*/
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int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
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const ECDSA_SIG *sig, EC_KEY* eckey);
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const ECDSA_METHOD *ECDSA_OpenSSL(void);
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/** Sets the default ECDSA method
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* \param meth new default ECDSA_METHOD
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*/
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void ECDSA_set_default_method(const ECDSA_METHOD *meth);
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/** Returns the default ECDSA method
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* \return pointer to ECDSA_METHOD structure containing the default method
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*/
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const ECDSA_METHOD *ECDSA_get_default_method(void);
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/** Sets method to be used for the ECDSA operations
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* \param eckey EC_KEY object
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* \param meth new method
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* \return 1 on success and 0 otherwise
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*/
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int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth);
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/** Returns the maximum length of the DER encoded signature
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* \param eckey EC_KEY object
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* \return numbers of bytes required for the DER encoded signature
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*/
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int ECDSA_size(const EC_KEY *eckey);
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/** Precompute parts of the signing operation
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* \param eckey EC_KEY object containing a private EC key
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* \param ctx BN_CTX object (optional)
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* \param kinv BIGNUM pointer for the inverse of k
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* \param rp BIGNUM pointer for x coordinate of k * generator
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* \return 1 on success and 0 otherwise
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*/
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int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
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BIGNUM **rp);
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/** Computes ECDSA signature of a given hash value using the supplied
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* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
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* \param type this parameter is ignored
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* \param dgst pointer to the hash value to sign
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* \param dgstlen length of the hash value
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* \param sig memory for the DER encoded created signature
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* \param siglen pointer to the length of the returned signature
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* \param eckey EC_KEY object containing a private EC key
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* \return 1 on success and 0 otherwise
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*/
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int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
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unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
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/** Computes ECDSA signature of a given hash value using the supplied
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* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
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* \param type this parameter is ignored
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* \param dgst pointer to the hash value to sign
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* \param dgstlen length of the hash value
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* \param sig buffer to hold the DER encoded signature
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* \param siglen pointer to the length of the returned signature
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* \param kinv BIGNUM with a pre-computed inverse k (optional)
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* \param rp BIGNUM with a pre-computed rp value (optional),
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* see ECDSA_sign_setup
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* \param eckey EC_KEY object containing a private EC key
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* \return 1 on success and 0 otherwise
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*/
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int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen,
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unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv,
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const BIGNUM *rp, EC_KEY *eckey);
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/** Verifies that the given signature is valid ECDSA signature
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* of the supplied hash value using the specified public key.
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* \param type this parameter is ignored
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* \param dgst pointer to the hash value
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* \param dgstlen length of the hash value
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* \param sig pointer to the DER encoded signature
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* \param siglen length of the DER encoded signature
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* \param eckey EC_KEY object containing a public EC key
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* \return 1 if the signature is valid, 0 if the signature is invalid
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* and -1 on error
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*/
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int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen,
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const unsigned char *sig, int siglen, EC_KEY *eckey);
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/* the standard ex_data functions */
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int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
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CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
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int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
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void *ECDSA_get_ex_data(EC_KEY *d, int idx);
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/* XXX should be in ec.h, but needs ECDSA_SIG */
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void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth,
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int (*sign)(int type, const unsigned char *dgst,
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