diff options
Diffstat (limited to 'include/openssl/dsa.h')
-rw-r--r-- | include/openssl/dsa.h | 656 |
1 files changed, 327 insertions, 329 deletions
diff --git a/include/openssl/dsa.h b/include/openssl/dsa.h index 3346853152..40d2663d1c 100644 --- a/include/openssl/dsa.h +++ b/include/openssl/dsa.h @@ -1,329 +1,327 @@ -/* 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>. - */ - -#ifndef HEADER_DSA_H -# define HEADER_DSA_H - -# include <openssl/e_os2.h> - -# ifdef OPENSSL_NO_DSA -# error DSA is disabled. -# endif - -# include <openssl/bio.h> -# include <openssl/crypto.h> -# include <openssl/ossl_typ.h> -# include <openssl/opensslconf.h> - -# if OPENSSL_API_COMPAT < 0x10100000L -# 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 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 -# define DSA_FLAG_FIPS_CHECKED 0x0800 - -#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 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; - BIGNUM *p; - BIGNUM *q; /* == 20 */ - BIGNUM *g; - BIGNUM *pub_key; /* y public key */ - BIGNUM *priv_key; /* x private key */ - 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; - CRYPTO_RWLOCK *lock; -}; - -# 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(BIGNUM **pr, BIGNUM **ps, DSA_SIG *sig); - -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 *); -int DSA_security_bits(const DSA *d); - /* 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); -#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 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 - -# 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 125 -# define DSA_F_DSA_BUILTIN_PARAMGEN2 126 -# 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_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 123 -# 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 112 -# define DSA_R_KEY_SIZE_TOO_SMALL 111 -# define DSA_R_MISSING_PARAMETERS 101 -# define DSA_R_MODULUS_TOO_LARGE 103 -# define DSA_R_NEED_NEW_SETUP_VALUES 110 -# define DSA_R_NO_PARAMETERS_SET 107 -# define DSA_R_PARAMETER_ENCODING_ERROR 105 -# define DSA_R_Q_NOT_PRIME 113 - -#ifdef __cplusplus -} -#endif -#endif +/* 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 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.
+ */
+
+/* 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);
+ 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,
+ 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 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
+
+#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_DO_SIGN 112
+#define DSA_F_DSA_DO_VERIFY 113
+#define DSA_F_DSA_GENERATE_KEY 124
+#define DSA_F_DSA_GENERATE_PARAMETERS_EX 123
+#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_MISSING_PARAMETERS 101
+#define DSA_R_MODULUS_TOO_LARGE 103
+#define DSA_R_NEED_NEW_SETUP_VALUES 110
+#define DSA_R_NON_FIPS_DSA_METHOD 111
+#define DSA_R_NO_PARAMETERS_SET 107
+#define DSA_R_PARAMETER_ENCODING_ERROR 105
+
+#ifdef __cplusplus
+}
+#endif
+#endif
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