diff options
Diffstat (limited to 'openssl/crypto/ecdsa/ecdsa.h')
| -rw-r--r-- | openssl/crypto/ecdsa/ecdsa.h | 193 |
1 files changed, 90 insertions, 103 deletions
diff --git a/openssl/crypto/ecdsa/ecdsa.h b/openssl/crypto/ecdsa/ecdsa.h index f20c8ee73..e61c53981 100644 --- a/openssl/crypto/ecdsa/ecdsa.h +++ b/openssl/crypto/ecdsa/ecdsa.h @@ -4,7 +4,7 @@ * \author Written by Nils Larsch for the OpenSSL project */ /* ==================================================================== - * Copyright (c) 2000-2003 The OpenSSL Project. All rights reserved. + * 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 @@ -81,156 +81,143 @@ typedef struct ECDSA_SIG_st BIGNUM *s; } ECDSA_SIG; -/** ECDSA_SIG *ECDSA_SIG_new(void) - * allocates and initialize a ECDSA_SIG structure - * \return pointer to a ECDSA_SIG structure or NULL if an error occurred +/** Allocates and initialize a ECDSA_SIG structure + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred */ ECDSA_SIG *ECDSA_SIG_new(void); -/** ECDSA_SIG_free - * frees a ECDSA_SIG structure - * \param a pointer to the ECDSA_SIG structure +/** frees a ECDSA_SIG structure + * \param sig pointer to the ECDSA_SIG structure */ -void ECDSA_SIG_free(ECDSA_SIG *a); +void ECDSA_SIG_free(ECDSA_SIG *sig); -/** i2d_ECDSA_SIG - * DER encode content of ECDSA_SIG object (note: this function modifies *pp - * (*pp += length of the DER encoded signature)). - * \param a pointer to the ECDSA_SIG object - * \param pp pointer to a unsigned char pointer for the output or NULL - * \return the length of the DER encoded ECDSA_SIG object or 0 +/** DER encode content of ECDSA_SIG object (note: this function modifies *pp + * (*pp += length of the DER encoded signature)). + * \param sig pointer to the ECDSA_SIG object + * \param pp pointer to a unsigned char pointer for the output or NULL + * \return the length of the DER encoded ECDSA_SIG object or 0 */ -int i2d_ECDSA_SIG(const ECDSA_SIG *a, unsigned char **pp); +int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); -/** d2i_ECDSA_SIG - * decodes a DER encoded ECDSA signature (note: this function changes *pp - * (*pp += len)). - * \param v pointer to ECDSA_SIG pointer (may be NULL) - * \param pp buffer with the DER encoded signature - * \param len bufferlength - * \return pointer to the decoded ECDSA_SIG structure (or NULL) +/** Decodes a DER encoded ECDSA signature (note: this function changes *pp + * (*pp += len)). + * \param sig pointer to ECDSA_SIG pointer (may be NULL) + * \param pp memory buffer with the DER encoded signature + * \param len length of the buffer + * \return pointer to the decoded ECDSA_SIG structure (or NULL) */ -ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **v, const unsigned char **pp, long len); +ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); -/** ECDSA_do_sign - * computes the ECDSA signature of the given hash value using - * the supplied private key and returns the created signature. - * \param dgst pointer to the hash value - * \param dgst_len length of the hash value - * \param eckey pointer to the EC_KEY object containing a private EC key - * \return pointer to a ECDSA_SIG structure or NULL +/** Computes the ECDSA signature of the given hash value using + * the supplied private key and returns the created signature. + * \param dgst pointer to the hash value + * \param dgst_len length of the hash value + * \param eckey EC_KEY object containing a private EC key + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred */ ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,int dgst_len,EC_KEY *eckey); -/** ECDSA_do_sign_ex - * computes ECDSA signature of a given hash value using the supplied - * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). - * \param dgst pointer to the hash value to sign - * \param dgstlen length of the hash value - * \param kinv optional pointer to a pre-computed inverse k - * \param rp optional pointer to the pre-computed rp value (see - * ECDSA_sign_setup - * \param eckey pointer to the EC_KEY object containing a private EC key - * \return pointer to a ECDSA_SIG structure or NULL +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param kinv BIGNUM with a pre-computed inverse k (optional) + * \param rp BIGNUM with a pre-computed rp value (optioanl), + * see ECDSA_sign_setup + * \param eckey EC_KEY object containing a private EC key + * \return pointer to a ECDSA_SIG structure or NULL if an error occurred */ ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); -/** ECDSA_do_verify - * verifies that the supplied signature is a valid ECDSA - * signature of the supplied hash value using the supplied public key. - * \param dgst pointer to the hash value - * \param dgst_len length of the hash value - * \param sig pointer to the ECDSA_SIG structure - * \param eckey pointer to the EC_KEY object containing a public EC key - * \return 1 if the signature is valid, 0 if the signature is invalid and -1 on error +/** Verifies that the supplied signature is a valid ECDSA + * signature of the supplied hash value using the supplied public key. + * \param dgst pointer to the hash value + * \param dgst_len length of the hash value + * \param sig ECDSA_SIG structure + * \param eckey EC_KEY object containing a public EC key + * \return 1 if the signature is valid, 0 if the signature is invalid + * and -1 on error */ int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, const ECDSA_SIG *sig, EC_KEY* eckey); const ECDSA_METHOD *ECDSA_OpenSSL(void); -/** ECDSA_set_default_method - * sets the default ECDSA method - * \param meth the new default ECDSA_METHOD +/** Sets the default ECDSA method + * \param meth new default ECDSA_METHOD */ void ECDSA_set_default_method(const ECDSA_METHOD *meth); -/** ECDSA_get_default_method - * returns the default ECDSA method - * \return pointer to ECDSA_METHOD structure containing the default method +/** Returns the default ECDSA method + * \return pointer to ECDSA_METHOD structure containing the default method */ const ECDSA_METHOD *ECDSA_get_default_method(void); -/** ECDSA_set_method - * sets method to be used for the ECDSA operations - * \param eckey pointer to the EC_KEY object - * \param meth pointer to the new method - * \return 1 on success and 0 otherwise +/** Sets method to be used for the ECDSA operations + * \param eckey EC_KEY object + * \param meth new method + * \return 1 on success and 0 otherwise */ int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth); -/** ECDSA_size - * returns the maximum length of the DER encoded signature - * \param eckey pointer to a EC_KEY object - * \return numbers of bytes required for the DER encoded signature +/** Returns the maximum length of the DER encoded signature + * \param eckey EC_KEY object + * \return numbers of bytes required for the DER encoded signature */ int ECDSA_size(const EC_KEY *eckey); -/** ECDSA_sign_setup - * precompute parts of the signing operation. - * \param eckey pointer to the EC_KEY object containing a private EC key - * \param ctx pointer to a BN_CTX object (may be NULL) - * \param kinv pointer to a BIGNUM pointer for the inverse of k - * \param rp pointer to a BIGNUM pointer for x coordinate of k * generator - * \return 1 on success and 0 otherwise +/** Precompute parts of the signing operation + * \param eckey EC_KEY object containing a private EC key + * \param ctx BN_CTX object (optional) + * \param kinv BIGNUM pointer for the inverse of k + * \param rp BIGNUM pointer for x coordinate of k * generator + * \return 1 on success and 0 otherwise */ int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp); -/** ECDSA_sign - * computes ECDSA signature of a given hash value using the supplied - * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). - * \param type this parameter is ignored - * \param dgst pointer to the hash value to sign - * \param dgstlen length of the hash value - * \param sig buffer to hold the DER encoded signature - * \param siglen pointer to the length of the returned signature - * \param eckey pointer to the EC_KEY object containing a private EC key - * \return 1 on success and 0 otherwise +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param type this parameter is ignored + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param sig memory for the DER encoded created signature + * \param siglen pointer to the length of the returned signature + * \param eckey EC_KEY object containing a private EC key + * \return 1 on success and 0 otherwise */ int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); -/** ECDSA_sign_ex - * computes ECDSA signature of a given hash value using the supplied - * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). - * \param type this parameter is ignored - * \param dgst pointer to the hash value to sign - * \param dgstlen length of the hash value - * \param sig buffer to hold the DER encoded signature - * \param siglen pointer to the length of the returned signature - * \param kinv optional pointer to a pre-computed inverse k - * \param rp optional pointer to the pre-computed rp value (see - * ECDSA_sign_setup - * \param eckey pointer to the EC_KEY object containing a private EC key - * \return 1 on success and 0 otherwise +/** Computes ECDSA signature of a given hash value using the supplied + * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). + * \param type this parameter is ignored + * \param dgst pointer to the hash value to sign + * \param dgstlen length of the hash value + * \param sig buffer to hold the DER encoded signature + * \param siglen pointer to the length of the returned signature + * \param kinv BIGNUM with a pre-computed inverse k (optional) + * \param rp BIGNUM with a pre-computed rp value (optioanl), + * see ECDSA_sign_setup + * \param eckey EC_KEY object containing a private EC key + * \return 1 on success and 0 otherwise */ 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); -/** ECDSA_verify - * verifies that the given signature is valid ECDSA signature - * of the supplied hash value using the specified public key. - * \param type this parameter is ignored - * \param dgst pointer to the hash value - * \param dgstlen length of the hash value - * \param sig pointer to the DER encoded signature - * \param siglen length of the DER encoded signature - * \param eckey pointer to the EC_KEY object containing a public EC key - * \return 1 if the signature is valid, 0 if the signature is invalid and -1 on error +/** Verifies that the given signature is valid ECDSA signature + * of the supplied hash value using the specified public key. + * \param type this parameter is ignored + * \param dgst pointer to the hash value + * \param dgstlen length of the hash value + * \param sig pointer to the DER encoded signature + * \param siglen length of the DER encoded signature + * \param eckey EC_KEY object containing a public EC key + * \return 1 if the signature is valid, 0 if the signature is invalid + * and -1 on error */ int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, const unsigned char *sig, int siglen, EC_KEY *eckey); 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