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barrier/ext/openssl-osx/include/openssl/dsa.h

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/* crypto/dsa/dsa.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/*
* The DSS routines are based on patches supplied by
* Steven Schoch <schoch@sheba.arc.nasa.gov>. He basically did the
* work and I have just tweaked them a little to fit into my
* stylistic vision for SSLeay :-) */
#ifndef HEADER_DSA_H
# define HEADER_DSA_H
# include <openssl/e_os2.h>
# ifdef OPENSSL_NO_DSA
# error DSA is disabled.
# endif
# ifndef OPENSSL_NO_BIO
# include <openssl/bio.h>
# endif
# include <openssl/crypto.h>
# include <openssl/ossl_typ.h>
# ifndef OPENSSL_NO_DEPRECATED
# include <openssl/bn.h>
# ifndef OPENSSL_NO_DH
# include <openssl/dh.h>
# endif
# endif
# ifndef OPENSSL_DSA_MAX_MODULUS_BITS
# define OPENSSL_DSA_MAX_MODULUS_BITS 10000
# endif
# define DSA_FLAG_CACHE_MONT_P 0x01
/*
* new with 0.9.7h; the built-in DSA implementation now uses constant time
* modular exponentiation for secret exponents by default. This flag causes
* the faster variable sliding window method to be used for all exponents.
*/
# define DSA_FLAG_NO_EXP_CONSTTIME 0x02
/*
* If this flag is set the DSA 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 reposibility to ensure the
* result is compliant.
*/
# define DSA_FLAG_FIPS_METHOD 0x0400
/*
* If this flag is set the operations normally disabled in FIPS mode are
* permitted it is then the applications responsibility to ensure that the
* usage is compliant.
*/
# define DSA_FLAG_NON_FIPS_ALLOW 0x0400
#ifdef __cplusplus
extern "C" {
#endif
/* Already defined in ossl_typ.h */
/* typedef struct dsa_st DSA; */
/* typedef struct dsa_method DSA_METHOD; */
typedef struct DSA_SIG_st {
BIGNUM *r;
BIGNUM *s;
} DSA_SIG;
struct dsa_method {
const char *name;
DSA_SIG *(*dsa_do_sign) (const unsigned char *dgst, int dlen, DSA *dsa);
int (*dsa_sign_setup) (DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
BIGNUM **rp);
int (*dsa_do_verify) (const unsigned char *dgst, int dgst_len,
DSA_SIG *sig, DSA *dsa);
int (*dsa_mod_exp) (DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1,
BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx,
BN_MONT_CTX *in_mont);
/* Can be null */
int (*bn_mod_exp) (DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int (*init) (DSA *dsa);
int (*finish) (DSA *dsa);
int flags;
char *app_data;
/* If this is non-NULL, it is used to generate DSA parameters */
int (*dsa_paramgen) (DSA *dsa, int bits,
const unsigned char *seed, int seed_len,
int *counter_ret, unsigned long *h_ret,
BN_GENCB *cb);
/* If this is non-NULL, it is used to generate DSA keys */
int (*dsa_keygen) (DSA *dsa);
};
struct dsa_st {
/*
* This first variable is used to pick up errors where a DSA is passed
* instead of of a EVP_PKEY
*/
int pad;
long version;
int write_params;
BIGNUM *p;
BIGNUM *q; /* == 20 */
BIGNUM *g;
BIGNUM *pub_key; /* y public key */
BIGNUM *priv_key; /* x private key */
BIGNUM *kinv; /* Signing pre-calc */
BIGNUM *r; /* Signing pre-calc */
int flags;
/* Normally used to cache montgomery values */
BN_MONT_CTX *method_mont_p;
int references;
CRYPTO_EX_DATA ex_data;
const DSA_METHOD *meth;
/* functional reference if 'meth' is ENGINE-provided */
ENGINE *engine;
};
# define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \
(char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x))
# define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \
(unsigned char *)(x))
# define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x)
# define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x)
DSA *DSAparams_dup(DSA *x);
DSA_SIG *DSA_SIG_new(void);
void DSA_SIG_free(DSA_SIG *a);
int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);
DSA_SIG *d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length);
DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
int DSA_do_verify(const unsigned char *dgst, int dgst_len,
DSA_SIG *sig, DSA *dsa);
const DSA_METHOD *DSA_OpenSSL(void);
void DSA_set_default_method(const DSA_METHOD *);
const DSA_METHOD *DSA_get_default_method(void);
int DSA_set_method(DSA *dsa, const DSA_METHOD *);
DSA *DSA_new(void);
DSA *DSA_new_method(ENGINE *engine);
void DSA_free(DSA *r);
/* "up" the DSA object's reference count */
int DSA_up_ref(DSA *r);
int DSA_size(const DSA *);
/* next 4 return -1 on error */
int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp);
int DSA_sign(int type, const unsigned char *dgst, int dlen,
unsigned char *sig, unsigned int *siglen, DSA *dsa);
int DSA_verify(int type, const unsigned char *dgst, int dgst_len,
const unsigned char *sigbuf, int siglen, DSA *dsa);
int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int DSA_set_ex_data(DSA *d, int idx, void *arg);
void *DSA_get_ex_data(DSA *d, int idx);
DSA *d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length);
DSA *d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length);
DSA *d2i_DSAparams(DSA **a, const unsigned char **pp, long length);
/* Deprecated version */
# ifndef OPENSSL_NO_DEPRECATED
DSA *DSA_generate_parameters(int bits,
unsigned char *seed, int seed_len,
int *counter_ret, unsigned long *h_ret, void
(*callback) (int, int, void *), void *cb_arg);
# endif /* !defined(OPENSSL_NO_DEPRECATED) */
/* New version */
int DSA_generate_parameters_ex(DSA *dsa, int bits,
const unsigned char *seed, int seed_len,
int *counter_ret, unsigned long *h_ret,
BN_GENCB *cb);
int DSA_generate_key(DSA *a);
int i2d_DSAPublicKey(const DSA *a, unsigned char **pp);
int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);
int i2d_DSAparams(const DSA *a, unsigned char **pp);
# ifndef OPENSSL_NO_BIO
int DSAparams_print(BIO *bp, const DSA *x);
int DSA_print(BIO *bp, const DSA *x, int off);
# endif
# ifndef OPENSSL_NO_FP_API
int DSAparams_print_fp(FILE *fp, const DSA *x);
int DSA_print_fp(FILE *bp, const DSA *x, int off);
# endif
# define DSS_prime_checks 50
/*
* Primality test according to FIPS PUB 186[-1], Appendix 2.1: 50 rounds of
* Rabin-Miller
*/
# define DSA_is_prime(n, callback, cb_arg) \
BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg)
# ifndef OPENSSL_NO_DH
/*
* Convert DSA structure (key or just parameters) into DH structure (be
* careful to avoid small subgroup attacks when using this!)
*/
DH *DSA_dup_DH(const DSA *r);
# endif
# define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \
EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL)
# define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1)
# define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2)
# define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3)
/* BEGIN ERROR CODES */
/*
* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
void ERR_load_DSA_strings(void);
/* Error codes for the DSA functions. */
/* Function codes. */
# define DSA_F_D2I_DSA_SIG 110
# define DSA_F_DO_DSA_PRINT 104
# define DSA_F_DSAPARAMS_PRINT 100
# define DSA_F_DSAPARAMS_PRINT_FP 101
# define DSA_F_DSA_BUILTIN_PARAMGEN2 126
# define DSA_F_DSA_DO_SIGN 112
# define DSA_F_DSA_DO_VERIFY 113
# define DSA_F_DSA_GENERATE_KEY 124
# define DSA_F_DSA_GENERATE_PARAMETERS_EX 123
# define DSA_F_DSA_NEW_METHOD 103
# define DSA_F_DSA_PARAM_DECODE 119
# define DSA_F_DSA_PRINT_FP 105
# define DSA_F_DSA_PRIV_DECODE 115
# define DSA_F_DSA_PRIV_ENCODE 116
# define DSA_F_DSA_PUB_DECODE 117
# define DSA_F_DSA_PUB_ENCODE 118
# define DSA_F_DSA_SIGN 106
# define DSA_F_DSA_SIGN_SETUP 107
# define DSA_F_DSA_SIG_NEW 109
# define DSA_F_DSA_SIG_PRINT 125
# define DSA_F_DSA_VERIFY 108
# define DSA_F_I2D_DSA_SIG 111
# define DSA_F_OLD_DSA_PRIV_DECODE 122
# define DSA_F_PKEY_DSA_CTRL 120
# define DSA_F_PKEY_DSA_KEYGEN 121
# define DSA_F_SIG_CB 114
/* Reason codes. */
# define DSA_R_BAD_Q_VALUE 102
# define DSA_R_BN_DECODE_ERROR 108
# define DSA_R_BN_ERROR 109
# define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100
# define DSA_R_DECODE_ERROR 104
# define DSA_R_INVALID_DIGEST_TYPE 106
# define DSA_R_INVALID_PARAMETERS 112
# define DSA_R_MISSING_PARAMETERS 101
# define DSA_R_MODULUS_TOO_LARGE 103
# define DSA_R_NEED_NEW_SETUP_VALUES 110
# define DSA_R_NON_FIPS_DSA_METHOD 111
# define DSA_R_NO_PARAMETERS_SET 107
# define DSA_R_PARAMETER_ENCODING_ERROR 105
# define DSA_R_Q_NOT_PRIME 113
#ifdef __cplusplus
}
#endif
#endif
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