ext/openssl/include/openssl/dsa.h - a71ch-crypto-support - Git at Google

 /*
  * 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_COMPAT < 0x10100000L
 #  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_COMPAT < 0x10100000L
 /*
  * 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_1_2_0(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
	/*
	* 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_COMPAT < 0x10100000L
	# 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_COMPAT < 0x10100000L
	/*
	* 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_1_2_0(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