[thirdparty/openssl.git] / include / openssl / dsa.h

/*
 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef HEADER_DSA_H
# define HEADER_DSA_H

# include <openssl/opensslconf.h>

# ifndef OPENSSL_NO_DSA
# ifdef  __cplusplus
extern "C" {
# endif
# include <openssl/e_os2.h>
# include <openssl/bio.h>
# include <openssl/crypto.h>
# include <openssl/ossl_typ.h>
# include <openssl/bn.h>
# if !OPENSSL_API_1_1_0
#  include <openssl/dh.h>
# endif
# include <openssl/dsaerr.h>

# ifndef OPENSSL_DSA_MAX_MODULUS_BITS
#  define OPENSSL_DSA_MAX_MODULUS_BITS   10000
# endif

# define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024

# define DSA_FLAG_CACHE_MONT_P   0x01
# if !OPENSSL_API_1_1_0
/*
 * Does nothing. Previously this switched off constant time behaviour.
 */
#  define DSA_FLAG_NO_EXP_CONSTTIME       0x00
# endif

/*
 * 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 responsibility 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
# define DSA_FLAG_FIPS_CHECKED                   0x0800

/* Already defined in ossl_typ.h */
/* typedef struct dsa_st DSA; */
/* typedef struct dsa_method DSA_METHOD; */

typedef struct DSA_SIG_st DSA_SIG;

# 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);
void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);

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 *);
const DSA_METHOD *DSA_get_method(DSA *d);

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 *);
int DSA_bits(const DSA *d);
int DSA_security_bits(const DSA *d);
        /* next 4 return -1 on error */
DEPRECATEDIN_3(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);
#define DSA_get_ex_new_index(l, p, newf, dupf, freef) \
    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef)
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 */
DEPRECATEDIN_0_9_8(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))

/* 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);

int DSAparams_print(BIO *bp, const DSA *x);
int DSA_print(BIO *bp, const DSA *x, int off);
# ifndef OPENSSL_NO_STDIO
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 C.3. Since we only
 * have one value here we set the number of checks to 64 which is the 128 bit
 * security level that is the highest level and valid for creating a 3072 bit
 * DSA key.
 */
# 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)

void DSA_get0_pqg(const DSA *d,
                  const BIGNUM **p, const BIGNUM **q, const BIGNUM **g);
int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g);
void DSA_get0_key(const DSA *d,
                  const BIGNUM **pub_key, const BIGNUM **priv_key);
int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key);
const BIGNUM *DSA_get0_p(const DSA *d);
const BIGNUM *DSA_get0_q(const DSA *d);
const BIGNUM *DSA_get0_g(const DSA *d);
const BIGNUM *DSA_get0_pub_key(const DSA *d);
const BIGNUM *DSA_get0_priv_key(const DSA *d);
void DSA_clear_flags(DSA *d, int flags);
int DSA_test_flags(const DSA *d, int flags);
void DSA_set_flags(DSA *d, int flags);
ENGINE *DSA_get0_engine(DSA *d);

DSA_METHOD *DSA_meth_new(const char *name, int flags);
void DSA_meth_free(DSA_METHOD *dsam);
DSA_METHOD *DSA_meth_dup(const DSA_METHOD *dsam);
const char *DSA_meth_get0_name(const DSA_METHOD *dsam);
int DSA_meth_set1_name(DSA_METHOD *dsam, const char *name);
int DSA_meth_get_flags(const DSA_METHOD *dsam);
int DSA_meth_set_flags(DSA_METHOD *dsam, int flags);
void *DSA_meth_get0_app_data(const DSA_METHOD *dsam);
int DSA_meth_set0_app_data(DSA_METHOD *dsam, void *app_data);
DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam))
        (const unsigned char *, int, DSA *);
int DSA_meth_set_sign(DSA_METHOD *dsam,
                       DSA_SIG *(*sign) (const unsigned char *, int, DSA *));
int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam))
        (DSA *, BN_CTX *, BIGNUM **, BIGNUM **);
int DSA_meth_set_sign_setup(DSA_METHOD *dsam,
        int (*sign_setup) (DSA *, BN_CTX *, BIGNUM **, BIGNUM **));
int (*DSA_meth_get_verify(const DSA_METHOD *dsam))
        (const unsigned char *, int, DSA_SIG *, DSA *);
int DSA_meth_set_verify(DSA_METHOD *dsam,
    int (*verify) (const unsigned char *, int, DSA_SIG *, DSA *));
int (*DSA_meth_get_mod_exp(const DSA_METHOD *dsam))
        (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
         const BIGNUM *, const BIGNUM *, BN_CTX *, BN_MONT_CTX *);
int DSA_meth_set_mod_exp(DSA_METHOD *dsam,
    int (*mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *,
                    const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *,
                    BN_MONT_CTX *));
int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam))
    (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
     BN_CTX *, BN_MONT_CTX *);
int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam,
    int (*bn_mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *,
                       const BIGNUM *, BN_CTX *, BN_MONT_CTX *));
int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *);
int DSA_meth_set_init(DSA_METHOD *dsam, int (*init)(DSA *));
int (*DSA_meth_get_finish(const DSA_METHOD *dsam)) (DSA *);
int DSA_meth_set_finish(DSA_METHOD *dsam, int (*finish) (DSA *));
int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam))
        (DSA *, int, const unsigned char *, int, int *, unsigned long *,
         BN_GENCB *);
int DSA_meth_set_paramgen(DSA_METHOD *dsam,
        int (*paramgen) (DSA *, int, const unsigned char *, int, int *,
                         unsigned long *, BN_GENCB *));
int (*DSA_meth_get_keygen(const DSA_METHOD *dsam)) (DSA *);
int DSA_meth_set_keygen(DSA_METHOD *dsam, int (*keygen) (DSA *));


#  ifdef  __cplusplus
}
#  endif
# endif
#endif
Commit	Line	Data
	1	/*
	2	* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
	3	*
	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
	8	*/
	9
	10	#ifndef HEADER_DSA_H
	11	# define HEADER_DSA_H
	12
	13	# include <openssl/opensslconf.h>
	14
	15	# ifndef OPENSSL_NO_DSA
	16	# ifdef __cplusplus
	17	extern "C" {
	18	# endif
	19	# include <openssl/e_os2.h>
	20	# include <openssl/bio.h>
	21	# include <openssl/crypto.h>
	22	# include <openssl/ossl_typ.h>
	23	# include <openssl/bn.h>
	24	# if !OPENSSL_API_1_1_0
	25	# include <openssl/dh.h>
	26	# endif
	27	# include <openssl/dsaerr.h>
	28
	29	# ifndef OPENSSL_DSA_MAX_MODULUS_BITS
	30	# define OPENSSL_DSA_MAX_MODULUS_BITS 10000
	31	# endif
	32
	33	# define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024
	34
	35	# define DSA_FLAG_CACHE_MONT_P 0x01
	36	# if !OPENSSL_API_1_1_0
	37	/*
	38	* Does nothing. Previously this switched off constant time behaviour.
	39	*/
	40	# define DSA_FLAG_NO_EXP_CONSTTIME 0x00
	41	# endif
	42
	43	/*
	44	* If this flag is set the DSA method is FIPS compliant and can be used in
	45	* FIPS mode. This is set in the validated module method. If an application
	46	* sets this flag in its own methods it is its responsibility to ensure the
	47	* result is compliant.
	48	*/
	49
	50	# define DSA_FLAG_FIPS_METHOD 0x0400
	51
	52	/*
	53	* If this flag is set the operations normally disabled in FIPS mode are
	54	* permitted it is then the applications responsibility to ensure that the
	55	* usage is compliant.
	56	*/
	57
	58	# define DSA_FLAG_NON_FIPS_ALLOW 0x0400
	59	# define DSA_FLAG_FIPS_CHECKED 0x0800
	60
	61	/* Already defined in ossl_typ.h */
	62	/* typedef struct dsa_st DSA; */
	63	/* typedef struct dsa_method DSA_METHOD; */
	64
	65	typedef struct DSA_SIG_st DSA_SIG;
	66
	67	# define d2i_DSAparams_fp(fp,x) (DSA )ASN1_d2i_fp((char (*)())DSA_new, \
	68	(char ()())d2i_DSAparams,(fp),(unsigned char **)(x))
	69	# define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \
	70	(unsigned char *)(x))
	71	# define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x)
	72	# define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x)
	73
	74	DSA DSAparams_dup(DSA x);
	75	DSA_SIG *DSA_SIG_new(void);
	76	void DSA_SIG_free(DSA_SIG *a);
	77	int i2d_DSA_SIG(const DSA_SIG a, unsigned char *pp);
	78	DSA_SIG d2i_DSA_SIG(DSA_SIG v, const unsigned char *pp, long length);
	79	void DSA_SIG_get0(const DSA_SIG sig, const BIGNUM pr, const BIGNUM *ps);
	80	int DSA_SIG_set0(DSA_SIG sig, BIGNUM r, BIGNUM *s);
	81
	82	DSA_SIG DSA_do_sign(const unsigned char dgst, int dlen, DSA *dsa);
	83	int DSA_do_verify(const unsigned char *dgst, int dgst_len,
	84	DSA_SIG sig, DSA dsa);
	85
	86	const DSA_METHOD *DSA_OpenSSL(void);
	87
	88	void DSA_set_default_method(const DSA_METHOD *);
	89	const DSA_METHOD *DSA_get_default_method(void);
	90	int DSA_set_method(DSA dsa, const DSA_METHOD );
	91	const DSA_METHOD DSA_get_method(DSA d);
	92
	93	DSA *DSA_new(void);
	94	DSA DSA_new_method(ENGINE engine);
	95	void DSA_free(DSA *r);
	96	/* "up" the DSA object's reference count */
	97	int DSA_up_ref(DSA *r);
	98	int DSA_size(const DSA *);
	99	int DSA_bits(const DSA *d);
	100	int DSA_security_bits(const DSA *d);
	101	/* next 4 return -1 on error */
	102	DEPRECATEDIN_3(int DSA_sign_setup(DSA dsa, BN_CTX ctx_in, BIGNUM kinvp, BIGNUM rp))
	103	int DSA_sign(int type, const unsigned char *dgst, int dlen,
	104	unsigned char sig, unsigned int siglen, DSA *dsa);
	105	int DSA_verify(int type, const unsigned char *dgst, int dgst_len,
	106	const unsigned char sigbuf, int siglen, DSA dsa);
	107	#define DSA_get_ex_new_index(l, p, newf, dupf, freef) \
	108	CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef)
	109	int DSA_set_ex_data(DSA d, int idx, void arg);
	110	void DSA_get_ex_data(DSA d, int idx);
	111
	112	DSA d2i_DSAPublicKey(DSA a, const unsigned char *pp, long length);
	113	DSA d2i_DSAPrivateKey(DSA a, const unsigned char *pp, long length);
	114	DSA d2i_DSAparams(DSA a, const unsigned char *pp, long length);
	115
	116	/* Deprecated version */
	117	DEPRECATEDIN_0_9_8(DSA *DSA_generate_parameters(int bits,
	118	unsigned char *seed,
	119	int seed_len,
	120	int *counter_ret,
	121	unsigned long *h_ret, void
	122	(*callback) (int, int,
	123	void *),
	124	void *cb_arg))
	125
	126	/* New version */
	127	int DSA_generate_parameters_ex(DSA *dsa, int bits,
	128	const unsigned char *seed, int seed_len,
	129	int counter_ret, unsigned long h_ret,
	130	BN_GENCB *cb);
	131
	132	int DSA_generate_key(DSA *a);
	133	int i2d_DSAPublicKey(const DSA a, unsigned char *pp);
	134	int i2d_DSAPrivateKey(const DSA a, unsigned char *pp);
	135	int i2d_DSAparams(const DSA a, unsigned char *pp);
	136
	137	int DSAparams_print(BIO bp, const DSA x);
	138	int DSA_print(BIO bp, const DSA x, int off);
	139	# ifndef OPENSSL_NO_STDIO
	140	int DSAparams_print_fp(FILE fp, const DSA x);
	141	int DSA_print_fp(FILE bp, const DSA x, int off);
	142	# endif
	143
	144	# define DSS_prime_checks 64
	145	/*
	146	* Primality test according to FIPS PUB 186-4, Appendix C.3. Since we only
	147	* have one value here we set the number of checks to 64 which is the 128 bit
	148	* security level that is the highest level and valid for creating a 3072 bit
	149	* DSA key.
	150	*/
	151	# define DSA_is_prime(n, callback, cb_arg) \
	152	BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg)
	153
	154	# ifndef OPENSSL_NO_DH
	155	/*
	156	* Convert DSA structure (key or just parameters) into DH structure (be
	157	* careful to avoid small subgroup attacks when using this!)
	158	*/
	159	DH DSA_dup_DH(const DSA r);
	160	# endif
	161
	162	# define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \
	163	EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \
	164	EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL)
	165
	166	# define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1)
	167	# define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2)
	168	# define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3)
	169
	170	void DSA_get0_pqg(const DSA *d,
	171	const BIGNUM p, const BIGNUM q, const BIGNUM **g);
	172	int DSA_set0_pqg(DSA d, BIGNUM p, BIGNUM q, BIGNUM g);
	173	void DSA_get0_key(const DSA *d,
	174	const BIGNUM pub_key, const BIGNUM priv_key);
	175	int DSA_set0_key(DSA d, BIGNUM pub_key, BIGNUM *priv_key);
	176	const BIGNUM DSA_get0_p(const DSA d);
	177	const BIGNUM DSA_get0_q(const DSA d);
	178	const BIGNUM DSA_get0_g(const DSA d);
	179	const BIGNUM DSA_get0_pub_key(const DSA d);
	180	const BIGNUM DSA_get0_priv_key(const DSA d);
	181	void DSA_clear_flags(DSA *d, int flags);
	182	int DSA_test_flags(const DSA *d, int flags);
	183	void DSA_set_flags(DSA *d, int flags);
	184	ENGINE DSA_get0_engine(DSA d);
	185
	186	DSA_METHOD DSA_meth_new(const char name, int flags);
	187	void DSA_meth_free(DSA_METHOD *dsam);
	188	DSA_METHOD DSA_meth_dup(const DSA_METHOD dsam);
	189	const char DSA_meth_get0_name(const DSA_METHOD dsam);
	190	int DSA_meth_set1_name(DSA_METHOD dsam, const char name);
	191	int DSA_meth_get_flags(const DSA_METHOD *dsam);
	192	int DSA_meth_set_flags(DSA_METHOD *dsam, int flags);
	193	void DSA_meth_get0_app_data(const DSA_METHOD dsam);
	194	int DSA_meth_set0_app_data(DSA_METHOD dsam, void app_data);
	195	DSA_SIG (DSA_meth_get_sign(const DSA_METHOD *dsam))
	196	(const unsigned char , int, DSA );
	197	int DSA_meth_set_sign(DSA_METHOD *dsam,
	198	DSA_SIG (sign) (const unsigned char , int, DSA ));
	199	int (DSA_meth_get_sign_setup(const DSA_METHOD dsam))
	200	(DSA , BN_CTX , BIGNUM , BIGNUM );
	201	int DSA_meth_set_sign_setup(DSA_METHOD *dsam,
	202	int (sign_setup) (DSA , BN_CTX , BIGNUM , BIGNUM *));
	203	int (DSA_meth_get_verify(const DSA_METHOD dsam))
	204	(const unsigned char , int, DSA_SIG , DSA *);
	205	int DSA_meth_set_verify(DSA_METHOD *dsam,
	206	int (verify) (const unsigned char , int, DSA_SIG , DSA ));
	207	int (DSA_meth_get_mod_exp(const DSA_METHOD dsam))
	208	(DSA , BIGNUM , const BIGNUM , const BIGNUM , const BIGNUM *,
	209	const BIGNUM , const BIGNUM , BN_CTX , BN_MONT_CTX );
	210	int DSA_meth_set_mod_exp(DSA_METHOD *dsam,
	211	int (mod_exp) (DSA , BIGNUM , const BIGNUM , const BIGNUM *,
	212	const BIGNUM , const BIGNUM , const BIGNUM , BN_CTX ,
	213	BN_MONT_CTX *));
	214	int (DSA_meth_get_bn_mod_exp(const DSA_METHOD dsam))
	215	(DSA , BIGNUM , const BIGNUM , const BIGNUM , const BIGNUM *,
	216	BN_CTX , BN_MONT_CTX );
	217	int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam,
	218	int (bn_mod_exp) (DSA , BIGNUM , const BIGNUM , const BIGNUM *,
	219	const BIGNUM , BN_CTX , BN_MONT_CTX *));
	220	int (DSA_meth_get_init(const DSA_METHOD dsam))(DSA *);
	221	int DSA_meth_set_init(DSA_METHOD dsam, int (init)(DSA *));
	222	int (DSA_meth_get_finish(const DSA_METHOD dsam)) (DSA *);
	223	int DSA_meth_set_finish(DSA_METHOD dsam, int (finish) (DSA *));
	224	int (DSA_meth_get_paramgen(const DSA_METHOD dsam))
	225	(DSA , int, const unsigned char , int, int , unsigned long ,
	226	BN_GENCB *);
	227	int DSA_meth_set_paramgen(DSA_METHOD *dsam,
	228	int (paramgen) (DSA , int, const unsigned char , int, int ,
	229	unsigned long , BN_GENCB ));
	230	int (DSA_meth_get_keygen(const DSA_METHOD dsam)) (DSA *);
	231	int DSA_meth_set_keygen(DSA_METHOD dsam, int (keygen) (DSA *));
	232
	233
	234	# ifdef __cplusplus
	235	}
	236	# endif
	237	# endif
	238	#endif