dsa.h
上传用户:yisoukefu
上传日期:2020-08-09
资源大小:39506k
文件大小:10k
- /* 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
- #define DSA_FLAG_CACHE_MONT_P 0x01
- #define DSA_FLAG_NO_EXP_CONSTTIME 0x02 /* 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.
- */
- #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);
- int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx); /* Can be null */
- 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,
- 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 DSAparams_dup(x) ASN1_dup_of_const(DSA,i2d_DSAparams,d2i_DSAparams,x)
- #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_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,
- 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
- /* 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_DSAPARAMS_PRINT 100
- #define DSA_F_DSAPARAMS_PRINT_FP 101
- #define DSA_F_DSA_DO_SIGN 112
- #define DSA_F_DSA_DO_VERIFY 113
- #define DSA_F_DSA_NEW_METHOD 103
- #define DSA_F_DSA_PRINT 104
- #define DSA_F_DSA_PRINT_FP 105
- #define DSA_F_DSA_SIGN 106
- #define DSA_F_DSA_SIGN_SETUP 107
- #define DSA_F_DSA_SIG_NEW 109
- #define DSA_F_DSA_VERIFY 108
- #define DSA_F_I2D_DSA_SIG 111
- #define DSA_F_SIG_CB 114
- /* Reason codes. */
- #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100
- #define DSA_R_MISSING_PARAMETERS 101
- #ifdef __cplusplus
- }
- #endif
- #endif