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/* 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 :-) */
module deimos.openssl.dsa;
import deimos.openssl._d_util;
import deimos.openssl.evp; // Needed for EVP_PKEY_ALG_CTRL.
public import deimos.openssl.e_os2;
version (OPENSSL_NO_DSA) {
static assert(false, "DSA is disabled.");
}
version(OPENSSL_NO_BIO) {} else {
public import deimos.openssl.bio;
}
public import deimos.openssl.crypto;
public import deimos.openssl.ossl_typ;
version(OPENSSL_NO_DEPRECATED) {} else {
public import deimos.openssl.bn;
version(OPENSSL_NO_DH) {} else {
public import deimos.openssl.dh;
}
}
// #ifndef OPENSSL_DSA_MAX_MODULUS_BITS
enum OPENSSL_DSA_MAX_MODULUS_BITS = 10000;
// #endif
enum DSA_FLAG_CACHE_MONT_P = 0x01;
enum 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.
*/
enum 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.
*/
enum DSA_FLAG_NON_FIPS_ALLOW = 0x0400;
extern (C):
nothrow:
/* Already defined in ossl_typ.h */
/* typedef dsa_st DSA; */
/* typedef dsa_method DSA_METHOD; */
struct DSA_SIG_st {
BIGNUM* r;
BIGNUM* s;
}
alias DSA_SIG_st DSA_SIG;
struct dsa_method
{
const(char)* name;
ExternC!(DSA_SIG* function(const(ubyte)* dgst, int dlen, DSA* dsa)) dsa_do_sign;
ExternC!(int function(DSA* dsa, BN_CTX* ctx_in, BIGNUM** kinvp,
BIGNUM** rp)) dsa_sign_setup;
ExternC!(int function(const(ubyte)* dgst, int dgst_len,
DSA_SIG* sig, DSA* dsa)) dsa_do_verify;
ExternC!(int function(DSA* dsa, BIGNUM* rr, BIGNUM* a1, BIGNUM* p1,
BIGNUM* a2, BIGNUM* p2, BIGNUM* m, BN_CTX* ctx,
BN_MONT_CTX* in_mont)) dsa_mod_exp;
ExternC!(int function(DSA* dsa, BIGNUM* r, BIGNUM* a, const(BIGNUM)* p,
const(BIGNUM)* m, BN_CTX* ctx,
BN_MONT_CTX* m_ctx)) bn_mod_exp; /* Can be null */
ExternC!(int function(DSA* dsa)) init_;
ExternC!(int function(DSA* dsa)) finish;
int flags;
char* app_data;
/* If this is non-NULL, it is used to generate DSA parameters */
ExternC!(int function(DSA* dsa, int bits,
const(ubyte)* seed, int seed_len,
int* counter_ret, c_ulong* h_ret,
BN_GENCB* cb)) dsa_paramgen;
/* If this is non-NULL, it is used to generate DSA keys */
ExternC!(int function(DSA* dsa)) dsa_keygen;
};
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;
c_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;
};
auto d2i_DSAparams_fp()(FILE* fp, void** x) {
return cast(DSA*)ASN1_d2i_fp(cast(ExternC!(void* function()))&DSA_new,
cast(d2i_of_void*)&d2i_DSAparams,fp,x);
}
auto i2d_DSAparams_fp()(FILE* fp, void* x) { return ASN1_i2d_fp(cast(d2i_of_void*)&i2d_DSAparams,fp, x); }
auto d2i_DSAparams_bio()(BIO* bp, void** x) { return ASN1_d2i_bio_of!DSA(&DSA_new,&d2i_DSAparams,bp,x); }
auto i2d_DSAparams_bio()(BIO* bp, void** x) { return ASN1_i2d_bio_of_const!DSA(&i2d_DSAparams,bp,x); }
DSA* DSAparams_dup(DSA* x);
DSA_SIG* DSA_SIG_new();
void DSA_SIG_free(DSA_SIG* a);
int i2d_DSA_SIG(const(DSA_SIG)* a, ubyte** pp);
DSA_SIG* d2i_DSA_SIG(DSA_SIG** v, const(ubyte)** pp, c_long length);
DSA_SIG* DSA_do_sign(const(ubyte)* dgst,int dlen,DSA* dsa);
int DSA_do_verify(const(ubyte)* dgst,int dgst_len,
DSA_SIG* sig,DSA* dsa);
const(DSA_METHOD)* DSA_OpenSSL();
void DSA_set_default_method(const(DSA_METHOD)*);
const(DSA_METHOD)* DSA_get_default_method();
int DSA_set_method(DSA* dsa, const(DSA_METHOD)*);
DSA* DSA_new();
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(ubyte)* dgst,int dlen,
ubyte* sig, uint* siglen, DSA* dsa);
int DSA_verify(int type,const(ubyte)* dgst,int dgst_len,
const(ubyte)* sigbuf, int siglen, DSA* dsa);
int DSA_get_ex_new_index(c_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(ubyte)** pp, c_long length);
DSA* d2i_DSAPrivateKey(DSA** a, const(ubyte)** pp, c_long length);
DSA* d2i_DSAparams(DSA** a, const(ubyte)** pp, c_long length);
/* Deprecated version */
version(OPENSSL_NO_DEPRECATED) {} else {
DSA* DSA_generate_parameters(int bits,
ubyte* seed,int seed_len,
int* counter_ret, c_ulong* h_ret,ExternC!(void
function(int, int, void*)) callback,void* cb_arg);
} /* !defined(OPENSSL_NO_DEPRECATED) */
/* New version */
int DSA_generate_parameters_ex(DSA* dsa, int bits,
const(ubyte)* seed,int seed_len,
int* counter_ret, c_ulong* h_ret, BN_GENCB* cb);
int DSA_generate_key(DSA* a);
int i2d_DSAPublicKey(const(DSA)* a, ubyte** pp);
int i2d_DSAPrivateKey(const(DSA)* a, ubyte** pp);
int i2d_DSAparams(const(DSA)* a,ubyte** pp);
version(OPENSSL_NO_BIO) {} else {
int DSAparams_print(BIO* bp, const(DSA)* x);
int DSA_print(BIO* bp, const(DSA)* x, int off);
}
version(OPENSSL_NO_FP_API) {} else {
int DSAparams_print_fp(FILE* fp, const(DSA)* x);
int DSA_print_fp(FILE* bp, const(DSA)* x, int off);
}
enum DSS_prime_checks = 50;
/* Primality test according to FIPS PUB 186[-1], Appendix 2.1:
* 50 rounds of Rabin-Miller */
int DSA_is_prime()(const(BIGNUM)* n, ExternC!(void function(int,int,void*)) callback, void* cb_arg) {
return BN_is_prime(n, DSS_prime_checks, callback, null, cb_arg);
}
version(OPENSSL_NO_DH) {} else {
/* 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);
}
auto EVP_PKEY_CTX_set_dsa_paramgen_bits()(EVP_PKEY_CTX* ctx, int nbits) {
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN,
EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, null);
}
enum EVP_PKEY_CTRL_DSA_PARAMGEN_BITS = (EVP_PKEY_ALG_CTRL + 1);
enum EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS = (EVP_PKEY_ALG_CTRL + 2);
enum 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();
/* Error codes for the DSA functions. */
/* Function codes. */
enum DSA_F_D2I_DSA_SIG = 110;
enum DSA_F_DO_DSA_PRINT = 104;
enum DSA_F_DSAPARAMS_PRINT = 100;
enum DSA_F_DSAPARAMS_PRINT_FP = 101;
enum DSA_F_DSA_DO_SIGN = 112;
enum DSA_F_DSA_DO_VERIFY = 113;
enum DSA_F_DSA_GENERATE_KEY = 124;
enum DSA_F_DSA_GENERATE_PARAMETERS_EX = 123;
enum DSA_F_DSA_NEW_METHOD = 103;
enum DSA_F_DSA_PARAM_DECODE = 119;
enum DSA_F_DSA_PRINT_FP = 105;
enum DSA_F_DSA_PRIV_DECODE = 115;
enum DSA_F_DSA_PRIV_ENCODE = 116;
enum DSA_F_DSA_PUB_DECODE = 117;
enum DSA_F_DSA_PUB_ENCODE = 118;
enum DSA_F_DSA_SIGN = 106;
enum DSA_F_DSA_SIGN_SETUP = 107;
enum DSA_F_DSA_SIG_NEW = 109;
enum DSA_F_DSA_SIG_PRINT = 125;
enum DSA_F_DSA_VERIFY = 108;
enum DSA_F_I2D_DSA_SIG = 111;
enum DSA_F_OLD_DSA_PRIV_DECODE = 122;
enum DSA_F_PKEY_DSA_CTRL = 120;
enum DSA_F_PKEY_DSA_KEYGEN = 121;
enum DSA_F_SIG_CB = 114;
/* Reason codes. */
enum DSA_R_BAD_Q_VALUE = 102;
enum DSA_R_BN_DECODE_ERROR = 108;
enum DSA_R_BN_ERROR = 109;
enum DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE = 100;
enum DSA_R_DECODE_ERROR = 104;
enum DSA_R_INVALID_DIGEST_TYPE = 106;
enum DSA_R_MISSING_PARAMETERS = 101;
enum DSA_R_MODULUS_TOO_LARGE = 103;
enum DSA_R_NEED_NEW_SETUP_VALUES = 110;
enum DSA_R_NON_FIPS_DSA_METHOD = 111;
enum DSA_R_NO_PARAMETERS_SET = 107;
enum DSA_R_PARAMETER_ENCODING_ERROR = 105;
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