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

/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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 OPENSSL_DSA_H
# define OPENSSL_DSA_H
# pragma once

# include <openssl/macros.h>
# ifndef OPENSSL_NO_DEPRECATED_3_0
#  define HEADER_DSA_H
# endif

# include <openssl/opensslconf.h>
# include <openssl/types.h>

# ifdef  __cplusplus
extern "C" {
# endif

# include <stdlib.h>

int EVP_PKEY_CTX_set_dsa_paramgen_bits(EVP_PKEY_CTX *ctx, int nbits);
int EVP_PKEY_CTX_set_dsa_paramgen_q_bits(EVP_PKEY_CTX *ctx, int qbits);
int EVP_PKEY_CTX_set_dsa_paramgen_md_props(EVP_PKEY_CTX *ctx,
                                           const char *md_name,
                                           const char *md_properties);
int EVP_PKEY_CTX_set_dsa_paramgen_gindex(EVP_PKEY_CTX *ctx, int gindex);
int EVP_PKEY_CTX_set_dsa_paramgen_type(EVP_PKEY_CTX *ctx, const char *name);
int EVP_PKEY_CTX_set_dsa_paramgen_seed(EVP_PKEY_CTX *ctx,
                                       const unsigned char *seed,
                                       size_t seedlen);
int EVP_PKEY_CTX_set_dsa_paramgen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);

# 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)

# ifndef OPENSSL_NO_DSA
#  include <openssl/e_os2.h>
#  include <openssl/asn1.h>
#  include <openssl/bio.h>
#  include <openssl/crypto.h>
#  include <openssl/bn.h>
#  ifndef OPENSSL_NO_DEPRECATED_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

typedef struct DSA_SIG_st DSA_SIG;
DSA_SIG *DSA_SIG_new(void);
void DSA_SIG_free(DSA_SIG *a);
DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA_SIG, DSA_SIG)
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);


#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
/*
 * Does nothing. Previously this switched off constant time behaviour.
 */
#   define DSA_FLAG_NO_EXP_CONSTTIME       0x00
#  endif

#  ifndef OPENSSL_NO_DEPRECATED_3_0
#   define DSA_FLAG_CACHE_MONT_P   0x01

/*
 * 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; */

/*
 * TODO(3.0): consider removing the ASN.1 encoding and decoding when
 * deserialization is completed elsewhere.
 */
#   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(DSA, i2d_DSAparams, bp, x)

DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, DSA, DSAparams)
OSSL_DEPRECATEDIN_3_0 DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen,
                                           DSA *dsa);
OSSL_DEPRECATEDIN_3_0 int DSA_do_verify(const unsigned char *dgst, int dgst_len,
                                        DSA_SIG *sig, DSA *dsa);

OSSL_DEPRECATEDIN_3_0 const DSA_METHOD *DSA_OpenSSL(void);

OSSL_DEPRECATEDIN_3_0 void DSA_set_default_method(const DSA_METHOD *);
OSSL_DEPRECATEDIN_3_0 const DSA_METHOD *DSA_get_default_method(void);
OSSL_DEPRECATEDIN_3_0 int DSA_set_method(DSA *dsa, const DSA_METHOD *);
OSSL_DEPRECATEDIN_3_0 const DSA_METHOD *DSA_get_method(DSA *d);

OSSL_DEPRECATEDIN_3_0 DSA *DSA_new(void);
OSSL_DEPRECATEDIN_3_0 DSA *DSA_new_method(ENGINE *engine);
OSSL_DEPRECATEDIN_3_0 void DSA_free(DSA *r);
/* "up" the DSA object's reference count */
OSSL_DEPRECATEDIN_3_0 int DSA_up_ref(DSA *r);
OSSL_DEPRECATEDIN_3_0 int DSA_size(const DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_bits(const DSA *d);
OSSL_DEPRECATEDIN_3_0 int DSA_security_bits(const DSA *d);
        /* next 4 return -1 on error */
OSSL_DEPRECATEDIN_3_0 int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in,
                                         BIGNUM **kinvp, BIGNUM **rp);
OSSL_DEPRECATEDIN_3_0 int DSA_sign(int type, const unsigned char *dgst,
                                   int dlen, unsigned char *sig,
                                   unsigned int *siglen, DSA *dsa);
OSSL_DEPRECATEDIN_3_0 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)
OSSL_DEPRECATEDIN_3_0 int DSA_set_ex_data(DSA *d, int idx, void *arg);
OSSL_DEPRECATEDIN_3_0 void *DSA_get_ex_data(const DSA *d, int idx);

DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
                                        DSA, DSAPublicKey)
DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
                                        DSA, DSAPrivateKey)
DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
                                        DSA, DSAparams)
#  endif

#  ifndef OPENSSL_NO_DEPRECATED_0_9_8
/* Deprecated version */
OSSL_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);
#  endif

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/* New version */
OSSL_DEPRECATEDIN_3_0 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);

OSSL_DEPRECATEDIN_3_0 int DSA_generate_key(DSA *a);

OSSL_DEPRECATEDIN_3_0 int DSAparams_print(BIO *bp, const DSA *x);
OSSL_DEPRECATEDIN_3_0 int DSA_print(BIO *bp, const DSA *x, int off);
#   ifndef OPENSSL_NO_STDIO
OSSL_DEPRECATEDIN_3_0 int DSAparams_print_fp(FILE *fp, const DSA *x);
OSSL_DEPRECATEDIN_3_0 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!)
 */
OSSL_DEPRECATEDIN_3_0 DH *DSA_dup_DH(const DSA *r);
#   endif

OSSL_DEPRECATEDIN_3_0 void DSA_get0_pqg(const DSA *d, const BIGNUM **p,
                                        const BIGNUM **q, const BIGNUM **g);
OSSL_DEPRECATEDIN_3_0 int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g);
OSSL_DEPRECATEDIN_3_0 void DSA_get0_key(const DSA *d, const BIGNUM **pub_key,
                                        const BIGNUM **priv_key);
OSSL_DEPRECATEDIN_3_0 int DSA_set0_key(DSA *d, BIGNUM *pub_key,
                                       BIGNUM *priv_key);
OSSL_DEPRECATEDIN_3_0 const BIGNUM *DSA_get0_p(const DSA *d);
OSSL_DEPRECATEDIN_3_0 const BIGNUM *DSA_get0_q(const DSA *d);
OSSL_DEPRECATEDIN_3_0 const BIGNUM *DSA_get0_g(const DSA *d);
OSSL_DEPRECATEDIN_3_0 const BIGNUM *DSA_get0_pub_key(const DSA *d);
OSSL_DEPRECATEDIN_3_0 const BIGNUM *DSA_get0_priv_key(const DSA *d);
OSSL_DEPRECATEDIN_3_0 void DSA_clear_flags(DSA *d, int flags);
OSSL_DEPRECATEDIN_3_0 int DSA_test_flags(const DSA *d, int flags);
OSSL_DEPRECATEDIN_3_0 void DSA_set_flags(DSA *d, int flags);
OSSL_DEPRECATEDIN_3_0 ENGINE *DSA_get0_engine(DSA *d);

OSSL_DEPRECATEDIN_3_0 DSA_METHOD *DSA_meth_new(const char *name, int flags);
OSSL_DEPRECATEDIN_3_0 void DSA_meth_free(DSA_METHOD *dsam);
OSSL_DEPRECATEDIN_3_0 DSA_METHOD *DSA_meth_dup(const DSA_METHOD *dsam);
OSSL_DEPRECATEDIN_3_0 const char *DSA_meth_get0_name(const DSA_METHOD *dsam);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set1_name(DSA_METHOD *dsam,
                                             const char *name);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_get_flags(const DSA_METHOD *dsam);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_flags(DSA_METHOD *dsam, int flags);
OSSL_DEPRECATEDIN_3_0 void *DSA_meth_get0_app_data(const DSA_METHOD *dsam);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set0_app_data(DSA_METHOD *dsam,
                                                 void *app_data);
OSSL_DEPRECATEDIN_3_0 DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam))
        (const unsigned char *, int, DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_sign(DSA_METHOD *dsam,
                       DSA_SIG *(*sign) (const unsigned char *, int, DSA *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam))
        (DSA *, BN_CTX *, BIGNUM **, BIGNUM **);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_sign_setup(DSA_METHOD *dsam,
        int (*sign_setup) (DSA *, BN_CTX *, BIGNUM **, BIGNUM **));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_verify(const DSA_METHOD *dsam))
        (const unsigned char *, int, DSA_SIG *, DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_verify(DSA_METHOD *dsam,
    int (*verify) (const unsigned char *, int, DSA_SIG *, DSA *));
OSSL_DEPRECATEDIN_3_0 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 *);
OSSL_DEPRECATEDIN_3_0 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 *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam))
    (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
     BN_CTX *, BN_MONT_CTX *);
OSSL_DEPRECATEDIN_3_0 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 *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_init(DSA_METHOD *dsam,
                                            int (*init)(DSA *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_finish(const DSA_METHOD *dsam))(DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_finish(DSA_METHOD *dsam,
                                              int (*finish)(DSA *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam))
        (DSA *, int, const unsigned char *, int, int *, unsigned long *,
         BN_GENCB *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_paramgen(DSA_METHOD *dsam,
        int (*paramgen) (DSA *, int, const unsigned char *, int, int *,
                         unsigned long *, BN_GENCB *));
OSSL_DEPRECATEDIN_3_0 int (*DSA_meth_get_keygen(const DSA_METHOD *dsam))(DSA *);
OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_keygen(DSA_METHOD *dsam,
                                              int (*keygen) (DSA *));

#  endif
# endif
# ifdef  __cplusplus
}
# endif
#endif
Commit	Line	Data
21dcbebc	1	/*
33388b44	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
0f113f3e	3	*
48f4ad77	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
21dcbebc RS	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
d02b48c6 RE	8	*/
d02b48c6 RE	9
ae4186b0 DMSP	10	#ifndef OPENSSL_DSA_H
ae4186b0 DMSP	11	# define OPENSSL_DSA_H
d86167ec DMSP	12	# pragma once
	13
	14	# include <openssl/macros.h>
936c2b9e	15	# ifndef OPENSSL_NO_DEPRECATED_3_0
d86167ec DMSP	16	# define HEADER_DSA_H
d86167ec DMSP	17	# endif
d02b48c6	18
3c27208f	19	# include <openssl/opensslconf.h>
888bdbfd	20	# include <openssl/types.h>
751ff1d3	21
888bdbfd	22	# ifdef __cplusplus
3c27208f	23	extern "C" {
888bdbfd RL	24	# endif
	25
	26	# include <stdlib.h>
	27
	28	int EVP_PKEY_CTX_set_dsa_paramgen_bits(EVP_PKEY_CTX *ctx, int nbits);
	29	int EVP_PKEY_CTX_set_dsa_paramgen_q_bits(EVP_PKEY_CTX *ctx, int qbits);
	30	int EVP_PKEY_CTX_set_dsa_paramgen_md_props(EVP_PKEY_CTX *ctx,
	31	const char *md_name,
	32	const char *md_properties);
	33	int EVP_PKEY_CTX_set_dsa_paramgen_gindex(EVP_PKEY_CTX *ctx, int gindex);
	34	int EVP_PKEY_CTX_set_dsa_paramgen_type(EVP_PKEY_CTX ctx, const char name);
	35	int EVP_PKEY_CTX_set_dsa_paramgen_seed(EVP_PKEY_CTX *ctx,
	36	const unsigned char *seed,
	37	size_t seedlen);
	38	int EVP_PKEY_CTX_set_dsa_paramgen_md(EVP_PKEY_CTX ctx, const EVP_MD md);
	39
	40	# define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1)
	41	# define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2)
	42	# define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3)
	43
	44	# ifndef OPENSSL_NO_DSA
7f6deaf6 P	45	# include <openssl/e_os2.h>
	46	# include <openssl/asn1.h>
	47	# include <openssl/bio.h>
	48	# include <openssl/crypto.h>
7f6deaf6 P	49	# include <openssl/bn.h>
	50	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
	51	# include <openssl/dh.h>
	52	# endif
	53	# include <openssl/dsaerr.h>
d02b48c6	54
7f6deaf6 P	55	# ifndef OPENSSL_DSA_MAX_MODULUS_BITS
	56	# define OPENSSL_DSA_MAX_MODULUS_BITS 10000
	57	# endif
0f113f3e	58
7f6deaf6	59	# define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024
5e3225cc	60
52c8535a P	61	typedef struct DSA_SIG_st DSA_SIG;
	62	DSA_SIG *DSA_SIG_new(void);
	63	void DSA_SIG_free(DSA_SIG *a);
	64	DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA_SIG, DSA_SIG)
	65	void DSA_SIG_get0(const DSA_SIG sig, const BIGNUM pr, const BIGNUM *ps);
	66	int DSA_SIG_set0(DSA_SIG sig, BIGNUM r, BIGNUM *s);
	67
	68
7f6deaf6	69	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
0f113f3e	70	/*
5584f65a	71	* Does nothing. Previously this switched off constant time behaviour.
68d39f3c	72	*/
7f6deaf6 P	73	# define DSA_FLAG_NO_EXP_CONSTTIME 0x00
7f6deaf6 P	74	# endif
dfeab068	75
f41ac0ee P	76	# ifndef OPENSSL_NO_DEPRECATED_3_0
	77	# define DSA_FLAG_CACHE_MONT_P 0x01
	78
0f113f3e MC	79	/*
	80	* If this flag is set the DSA method is FIPS compliant and can be used in
	81	* FIPS mode. This is set in the validated module method. If an application
8483a003	82	* sets this flag in its own methods it is its responsibility to ensure the
0f113f3e	83	* result is compliant.
20818e00 DSH	84	*/
20818e00 DSH	85
f41ac0ee	86	# define DSA_FLAG_FIPS_METHOD 0x0400
20818e00	87
0f113f3e MC	88	/*
0f113f3e MC	89	* If this flag is set the operations normally disabled in FIPS mode are
20818e00 DSH	90	* permitted it is then the applications responsibility to ensure that the
	91	* usage is compliant.
	92	*/
	93
f41ac0ee P	94	# define DSA_FLAG_NON_FIPS_ALLOW 0x0400
f41ac0ee P	95	# define DSA_FLAG_FIPS_CHECKED 0x0800
20818e00	96
3a87a9b9 GT	97	/* Already defined in ossl_typ.h */
	98	/* typedef struct dsa_st DSA; */
	99	/* typedef struct dsa_method DSA_METHOD; */
c0711f7f	100
f41ac0ee P	101	/*
f41ac0ee P	102	* TODO(3.0): consider removing the ASN.1 encoding and decoding when
aa97970c	103	* deserialization is completed elsewhere.
f41ac0ee	104	*/
52c8535a	105	# define d2i_DSAparams_fp(fp, x) \
7f6deaf6 P	106	(DSA )ASN1_d2i_fp((char (*)())DSA_new, \
	107	(char ()())d2i_DSAparams, (fp), \
	108	(unsigned char **)(x))
52c8535a	109	# define i2d_DSAparams_fp(fp, x) \
f41ac0ee	110	ASN1_i2d_fp(i2d_DSAparams, (fp), (unsigned char *)(x))
52c8535a	111	# define d2i_DSAparams_bio(bp, x) \
7f6deaf6	112	ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSAparams, bp, x)
52c8535a	113	# define i2d_DSAparams_bio(bp, x) \
7f6deaf6	114	ASN1_i2d_bio_of(DSA, i2d_DSAparams, bp, x)
d02b48c6	115
52c8535a P	116	DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, DSA, DSAparams)
	117	OSSL_DEPRECATEDIN_3_0 DSA_SIG DSA_do_sign(const unsigned char dgst, int dlen,
	118	DSA *dsa);
	119	OSSL_DEPRECATEDIN_3_0 int DSA_do_verify(const unsigned char *dgst, int dgst_len,
	120	DSA_SIG sig, DSA dsa);
a8da8918	121
52c8535a	122	OSSL_DEPRECATEDIN_3_0 const DSA_METHOD *DSA_OpenSSL(void);
c0711f7f	123
52c8535a P	124	OSSL_DEPRECATEDIN_3_0 void DSA_set_default_method(const DSA_METHOD *);
	125	OSSL_DEPRECATEDIN_3_0 const DSA_METHOD *DSA_get_default_method(void);
	126	OSSL_DEPRECATEDIN_3_0 int DSA_set_method(DSA dsa, const DSA_METHOD );
	127	OSSL_DEPRECATEDIN_3_0 const DSA_METHOD DSA_get_method(DSA d);
f8463356	128
52c8535a P	129	OSSL_DEPRECATEDIN_3_0 DSA *DSA_new(void);
	130	OSSL_DEPRECATEDIN_3_0 DSA DSA_new_method(ENGINE engine);
	131	OSSL_DEPRECATEDIN_3_0 void DSA_free(DSA *r);
5cbc2e8b	132	/* "up" the DSA object's reference count */
52c8535a P	133	OSSL_DEPRECATEDIN_3_0 int DSA_up_ref(DSA *r);
	134	OSSL_DEPRECATEDIN_3_0 int DSA_size(const DSA *);
	135	OSSL_DEPRECATEDIN_3_0 int DSA_bits(const DSA *d);
	136	OSSL_DEPRECATEDIN_3_0 int DSA_security_bits(const DSA *d);
0f113f3e	137	/* next 4 return -1 on error */
52c8535a P	138	OSSL_DEPRECATEDIN_3_0 int DSA_sign_setup(DSA dsa, BN_CTX ctx_in,
	139	BIGNUM kinvp, BIGNUM rp);
	140	OSSL_DEPRECATEDIN_3_0 int DSA_sign(int type, const unsigned char *dgst,
	141	int dlen, unsigned char *sig,
	142	unsigned int siglen, DSA dsa);
	143	OSSL_DEPRECATEDIN_3_0 int DSA_verify(int type, const unsigned char *dgst,
	144	int dgst_len, const unsigned char *sigbuf,
	145	int siglen, DSA *dsa);
	146
f41ac0ee	147	# define DSA_get_ex_new_index(l, p, newf, dupf, freef) \
7f6deaf6	148	CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef)
52c8535a P	149	OSSL_DEPRECATEDIN_3_0 int DSA_set_ex_data(DSA d, int idx, void arg);
	150	OSSL_DEPRECATEDIN_3_0 void DSA_get_ex_data(const DSA d, int idx);
	151
	152	DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
	153	DSA, DSAPublicKey)
	154	DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
	155	DSA, DSAPrivateKey)
	156	DECLARE_ASN1_ENCODE_FUNCTIONS_only_attr(OSSL_DEPRECATEDIN_3_0,
	157	DSA, DSAparams)
f41ac0ee	158	# endif
e9224c71	159
52c8535a	160	# ifndef OPENSSL_NO_DEPRECATED_0_9_8
e9224c71	161	/* Deprecated version */
52c8535a P	162	OSSL_DEPRECATEDIN_0_9_8
	163	DSA DSA_generate_parameters(int bits, unsigned char seed, int seed_len,
	164	int counter_ret, unsigned long h_ret,
	165	void (callback) (int, int, void ),
	166	void *cb_arg);
7f6deaf6	167	# endif
0f113f3e	168
7f6deaf6	169	# ifndef OPENSSL_NO_DEPRECATED_3_0
52c8535a P	170	/* New version */
	171	OSSL_DEPRECATEDIN_3_0 int DSA_generate_parameters_ex(DSA *dsa, int bits,
	172	const unsigned char *seed,
	173	int seed_len,
	174	int *counter_ret,
	175	unsigned long *h_ret,
	176	BN_GENCB *cb);
	177
	178	OSSL_DEPRECATEDIN_3_0 int DSA_generate_key(DSA *a);
	179
	180	OSSL_DEPRECATEDIN_3_0 int DSAparams_print(BIO bp, const DSA x);
	181	OSSL_DEPRECATEDIN_3_0 int DSA_print(BIO bp, const DSA x, int off);
	182	# ifndef OPENSSL_NO_STDIO
	183	OSSL_DEPRECATEDIN_3_0 int DSAparams_print_fp(FILE fp, const DSA x);
	184	OSSL_DEPRECATEDIN_3_0 int DSA_print_fp(FILE bp, const DSA x, int off);
	185	# endif
	186
7f6deaf6	187	# define DSS_prime_checks 64
0f113f3e	188	/*
74ee3796 KR	189	* Primality test according to FIPS PUB 186-4, Appendix C.3. Since we only
	190	* have one value here we set the number of checks to 64 which is the 128 bit
	191	* security level that is the highest level and valid for creating a 3072 bit
	192	* DSA key.
0f113f3e	193	*/
7f6deaf6 P	194	# define DSA_is_prime(n, callback, cb_arg) \
7f6deaf6 P	195	BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg)
d02b48c6	196
52c8535a	197	# ifndef OPENSSL_NO_DH
0f113f3e MC	198	/*
	199	* Convert DSA structure (key or just parameters) into DH structure (be
	200	* careful to avoid small subgroup attacks when using this!)
	201	*/
52c8535a P	202	OSSL_DEPRECATEDIN_3_0 DH DSA_dup_DH(const DSA r);
	203	# endif
	204
	205	OSSL_DEPRECATEDIN_3_0 void DSA_get0_pqg(const DSA d, const BIGNUM *p,
	206	const BIGNUM q, const BIGNUM g);
	207	OSSL_DEPRECATEDIN_3_0 int DSA_set0_pqg(DSA d, BIGNUM p, BIGNUM q, BIGNUM g);
	208	OSSL_DEPRECATEDIN_3_0 void DSA_get0_key(const DSA d, const BIGNUM *pub_key,
	209	const BIGNUM **priv_key);
	210	OSSL_DEPRECATEDIN_3_0 int DSA_set0_key(DSA d, BIGNUM pub_key,
	211	BIGNUM *priv_key);
	212	OSSL_DEPRECATEDIN_3_0 const BIGNUM DSA_get0_p(const DSA d);
	213	OSSL_DEPRECATEDIN_3_0 const BIGNUM DSA_get0_q(const DSA d);
	214	OSSL_DEPRECATEDIN_3_0 const BIGNUM DSA_get0_g(const DSA d);
	215	OSSL_DEPRECATEDIN_3_0 const BIGNUM DSA_get0_pub_key(const DSA d);
	216	OSSL_DEPRECATEDIN_3_0 const BIGNUM DSA_get0_priv_key(const DSA d);
	217	OSSL_DEPRECATEDIN_3_0 void DSA_clear_flags(DSA *d, int flags);
	218	OSSL_DEPRECATEDIN_3_0 int DSA_test_flags(const DSA *d, int flags);
	219	OSSL_DEPRECATEDIN_3_0 void DSA_set_flags(DSA *d, int flags);
	220	OSSL_DEPRECATEDIN_3_0 ENGINE DSA_get0_engine(DSA d);
	221
	222	OSSL_DEPRECATEDIN_3_0 DSA_METHOD DSA_meth_new(const char name, int flags);
	223	OSSL_DEPRECATEDIN_3_0 void DSA_meth_free(DSA_METHOD *dsam);
	224	OSSL_DEPRECATEDIN_3_0 DSA_METHOD DSA_meth_dup(const DSA_METHOD dsam);
	225	OSSL_DEPRECATEDIN_3_0 const char DSA_meth_get0_name(const DSA_METHOD dsam);
	226	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set1_name(DSA_METHOD *dsam,
	227	const char *name);
	228	OSSL_DEPRECATEDIN_3_0 int DSA_meth_get_flags(const DSA_METHOD *dsam);
	229	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_flags(DSA_METHOD *dsam, int flags);
	230	OSSL_DEPRECATEDIN_3_0 void DSA_meth_get0_app_data(const DSA_METHOD dsam);
	231	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set0_app_data(DSA_METHOD *dsam,
	232	void *app_data);
	233	OSSL_DEPRECATEDIN_3_0 DSA_SIG (DSA_meth_get_sign(const DSA_METHOD *dsam))
	234	(const unsigned char , int, DSA );
	235	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_sign(DSA_METHOD *dsam,
	236	DSA_SIG (sign) (const unsigned char , int, DSA ));
	237	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_sign_setup(const DSA_METHOD dsam))
	238	(DSA , BN_CTX , BIGNUM , BIGNUM );
	239	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_sign_setup(DSA_METHOD *dsam,
	240	int (sign_setup) (DSA , BN_CTX , BIGNUM , BIGNUM *));
	241	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_verify(const DSA_METHOD dsam))
	242	(const unsigned char , int, DSA_SIG , DSA *);
	243	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_verify(DSA_METHOD *dsam,
	244	int (verify) (const unsigned char , int, DSA_SIG , DSA ));
	245	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_mod_exp(const DSA_METHOD dsam))
24bf6f3c	246	(DSA , BIGNUM , const BIGNUM , const BIGNUM , const BIGNUM *,
52c8535a P	247	const BIGNUM , const BIGNUM , BN_CTX , BN_MONT_CTX );
52c8535a P	248	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_mod_exp(DSA_METHOD *dsam,
24bf6f3c BL	249	int (mod_exp) (DSA , BIGNUM , const BIGNUM , const BIGNUM *,
24bf6f3c BL	250	const BIGNUM , const BIGNUM , const BIGNUM , BN_CTX ,
52c8535a P	251	BN_MONT_CTX *));
52c8535a P	252	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_bn_mod_exp(const DSA_METHOD dsam))
24bf6f3c	253	(DSA , BIGNUM , const BIGNUM , const BIGNUM , const BIGNUM *,
52c8535a P	254	BN_CTX , BN_MONT_CTX );
52c8535a P	255	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam,
24bf6f3c	256	int (bn_mod_exp) (DSA , BIGNUM , const BIGNUM , const BIGNUM *,
52c8535a P	257	const BIGNUM , BN_CTX , BN_MONT_CTX *));
	258	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_init(const DSA_METHOD dsam))(DSA *);
	259	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_init(DSA_METHOD *dsam,
	260	int (init)(DSA ));
	261	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_finish(const DSA_METHOD dsam))(DSA *);
	262	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_finish(DSA_METHOD *dsam,
	263	int (finish)(DSA ));
	264	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_paramgen(const DSA_METHOD dsam))
6e9fa57c	265	(DSA , int, const unsigned char , int, int , unsigned long ,
52c8535a P	266	BN_GENCB *);
52c8535a P	267	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_paramgen(DSA_METHOD *dsam,
6e9fa57c	268	int (paramgen) (DSA , int, const unsigned char , int, int ,
52c8535a P	269	unsigned long , BN_GENCB ));
	270	OSSL_DEPRECATEDIN_3_0 int (DSA_meth_get_keygen(const DSA_METHOD dsam))(DSA *);
	271	OSSL_DEPRECATEDIN_3_0 int DSA_meth_set_keygen(DSA_METHOD *dsam,
	272	int (keygen) (DSA ));
6e9fa57c	273
52c8535a	274	# endif
888bdbfd RL	275	# endif
888bdbfd RL	276	# ifdef __cplusplus
d02b48c6	277	}
3c27208f	278	# endif
d02b48c6	279	#endif