diff options
Diffstat (limited to 'include/openssl/dsa.h')
-rw-r--r-- | include/openssl/dsa.h | 659 |
1 files changed, 332 insertions, 327 deletions
diff --git a/include/openssl/dsa.h b/include/openssl/dsa.h index 40d2663d1c..545358fd02 100644 --- a/include/openssl/dsa.h +++ b/include/openssl/dsa.h @@ -1,327 +1,332 @@ -/* 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
+/* 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 +/* + * 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 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_PARAMGEN2 126 +# 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_INVALID_PARAMETERS 112 +# 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 +# define DSA_R_Q_NOT_PRIME 113 + +#ifdef __cplusplus +} +#endif +#endif |