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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 OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024
# define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS_GEN (getenv("OPENSSL_ENFORCE_MODULUS_BITS")?2048:1024)

# 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 64
/*
 * Primality test according to FIPS PUB 186-4, Appendix 2.1: 64 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

# ifdef OPENSSL_FIPS
int FIPS_dsa_builtin_paramgen(DSA *ret, size_t bits, size_t qbits,
                              const EVP_MD *evpmd,
                              const unsigned char *seed_in,
                              size_t seed_len, int *counter_ret,
                              unsigned long *h_ret, BN_GENCB *cb);
int FIPS_dsa_generate_pq(BN_CTX *ctx, size_t bits, size_t qbits,
                         const EVP_MD *evpmd, unsigned char *seed,
                         int seed_len, BIGNUM **p_ret, BIGNUM **q_ret,
                         int *counter_ret, BN_GENCB *cb);
int FIPS_dsa_generate_g(BN_CTX *ctx, BIGNUM *p, BIGNUM *q, BIGNUM **g_ret,
                            unsigned long *h_ret, BN_GENCB *cb);
# 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_KEYGEN                         124
# define DSA_F_DSA_BUILTIN_PARAMGEN                       123
# define DSA_F_DSA_BUILTIN_PARAMGEN2                      226
# define DSA_F_DSA_DO_SIGN                                112
# define DSA_F_DSA_DO_VERIFY                              113
# define DSA_F_DSA_GENERATE_KEY                           126
# define DSA_F_DSA_GENERATE_PARAMETERS_EX                 127
# define DSA_F_DSA_GENERATE_PARAMETERS   /* unused */     125
# 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                         212
# define DSA_R_KEY_SIZE_INVALID                           201
# define DSA_R_KEY_SIZE_TOO_SMALL                         110
# define DSA_R_MISSING_PARAMETERS                         101
# define DSA_R_MODULUS_TOO_LARGE                          103
# define DSA_R_NEED_NEW_SETUP_VALUES                      112
# define DSA_R_NON_FIPS_DSA_METHOD                        111
# define DSA_R_NON_FIPS_METHOD                            111
# define DSA_R_NO_PARAMETERS_SET                          107
# define DSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE /* unused */ 112
# define DSA_R_PARAMETER_ENCODING_ERROR                   105
# define DSA_R_Q_NOT_PRIME                                113

#ifdef  __cplusplus
}
#endif
#endif

Filemanager

Name Type Size Permission Actions
aes.h File 6 KB 0644
asn1.h File 61.84 KB 0644
asn1_mac.h File 23.86 KB 0644
asn1t.h File 33.67 KB 0644
bio.h File 37.83 KB 0644
blowfish.h File 5.23 KB 0644
bn.h File 38.24 KB 0644
buffer.h File 4.91 KB 0644
camellia.h File 5.43 KB 0644
cast.h File 4.55 KB 0644
cmac.h File 3.18 KB 0644
cms.h File 27.97 KB 0644
comp.h File 2.32 KB 0644
conf.h File 10.99 KB 0644
conf_api.h File 4.05 KB 0644
crypto.h File 27.45 KB 0644
des.h File 11.49 KB 0644
des_old.h File 20.98 KB 0644
dh.h File 15.9 KB 0644
dsa.h File 14.64 KB 0644
dso.h File 19.74 KB 0644
dtls1.h File 8.83 KB 0644
e_os2.h File 10.69 KB 0644
ebcdic.h File 616 B 0644
ec.h File 50.77 KB 0644
ecdh.h File 5.07 KB 0644
ecdsa.h File 13.71 KB 0644
engine.h File 43.89 KB 0644
err.h File 16.42 KB 0644
evp.h File 66.76 KB 0644
fips.h File 13.31 KB 0644
fips_rand.h File 7.16 KB 0644
hmac.h File 4.43 KB 0644
idea.h File 4.57 KB 0644
krb5_asn.h File 7.97 KB 0644
kssl.h File 6.69 KB 0644
lhash.h File 9.33 KB 0644
md2.h File 3.89 KB 0644
md4.h File 4.67 KB 0644
md5.h File 4.67 KB 0644
modes.h File 8.46 KB 0644
obj_mac.h File 171.54 KB 0644
objects.h File 46.45 KB 0644
ocsp.h File 26.51 KB 0644
opensslconf-x86_64.h File 7.6 KB 0644
opensslconf.h File 1.54 KB 0644
opensslv.h File 3.85 KB 0644
ossl_typ.h File 7.65 KB 0644
pem.h File 25.27 KB 0644
pem2.h File 2.79 KB 0644
pkcs12.h File 14.5 KB 0644
pkcs7.h File 20.29 KB 0644
pqueue.h File 3.59 KB 0644
rand.h File 6.73 KB 0644
rc2.h File 4.44 KB 0644
rc4.h File 3.72 KB 0644
rc5.h File 4.82 KB 0644
ripemd.h File 4.27 KB 0644
rsa.h File 29.68 KB 0644
safestack.h File 198.15 KB 0644
seed.h File 5.9 KB 0644
sha.h File 7.4 KB 0644
srtp.h File 6.48 KB 0644
ssl.h File 143.33 KB 0644
ssl2.h File 11.77 KB 0644
ssl23.h File 3.7 KB 0644
ssl3.h File 32.5 KB 0644
stack.h File 4.43 KB 0644
symhacks.h File 27.04 KB 0644
tls1.h File 38.48 KB 0644
ts.h File 33.75 KB 0644
txt_db.h File 4.52 KB 0644
ui.h File 18.25 KB 0644
ui_compat.h File 3.41 KB 0644
whrlpool.h File 1.06 KB 0644
x509.h File 52.07 KB 0644
x509_vfy.h File 28.55 KB 0644
x509v3.h File 39.44 KB 0644