/* * Copyright (c) 2000-2002 Apple Computer, Inc. All Rights Reserved. * * The contents of this file constitute Original Code as defined in and are * subject to the Apple Public Source License Version 1.2 (the 'License'). * You may not use this file except in compliance with the License. Please obtain * a copy of the License at http://www.apple.com/publicsource and read it before * using this file. * * This Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the * specific language governing rights and limitations under the License. */ /* 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 #ifdef __cplusplus extern "C" { #endif #ifdef NO_DSA #error DSA is disabled. #endif #include <openssl/bn.h> #include <openssl/crypto.h> #ifndef NO_DH # include <openssl/dh.h> #endif #define DSA_FLAG_CACHE_MONT_P 0x01 typedef struct dsa_st DSA; typedef struct DSA_SIG_st { BIGNUM *r; BIGNUM *s; } DSA_SIG; typedef 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; } DSA_METHOD; 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; int 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 */ char *method_mont_p; int references; CRYPTO_EX_DATA ex_data; const DSA_METHOD *meth; }; #define DSAparams_dup(x) (DSA *)ASN1_dup((int (*)())i2d_DSAparams, \ (char *(*)())d2i_DSAparams,(char *)(x)) #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) (DSA *)ASN1_d2i_bio((char *(*)())DSA_new, \ (char *(*)())d2i_DSAparams,(bp),(unsigned char **)(x)) #define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio(i2d_DSAparams,(bp), \ (unsigned char *)(x)) DSA_SIG * DSA_SIG_new(void); void DSA_SIG_free(DSA_SIG *a); int i2d_DSA_SIG(DSA_SIG *a, unsigned char **pp); DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, 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); const DSA_METHOD *DSA_set_method(DSA *dsa, const DSA_METHOD *); DSA * DSA_new(void); DSA * DSA_new_method(const DSA_METHOD *meth); int DSA_size(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, unsigned char *sigbuf, int siglen, DSA *dsa); void DSA_free (DSA *r); 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); void ERR_load_DSA_strings(void ); DSA * d2i_DSAPublicKey(DSA **a, unsigned char **pp, long length); DSA * d2i_DSAPrivateKey(DSA **a, unsigned char **pp, long length); DSA * d2i_DSAparams(DSA **a, unsigned char **pp, long length); 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); int DSA_generate_key(DSA *a); int i2d_DSAPublicKey(DSA *a, unsigned char **pp); int i2d_DSAPrivateKey(DSA *a, unsigned char **pp); int i2d_DSAparams(DSA *a,unsigned char **pp); #ifdef HEADER_BIO_H int DSAparams_print(BIO *bp, DSA *x); int DSA_print(BIO *bp, DSA *x, int off); #endif #ifndef NO_FP_API int DSAparams_print_fp(FILE *fp, DSA *x); int DSA_print_fp(FILE *bp, 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 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(DSA *r); #endif /* 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. */ /* Error codes for the DSA functions. */ /* Function codes. */ #define DSA_F_D2I_DSA_SIG 110 #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_NEW 103 #define DSA_F_DSA_PRINT 104 #define DSA_F_DSA_PRINT_FP 105 #define DSA_F_DSA_SIGN 106 #define DSA_F_DSA_SIGN_SETUP 107 #define DSA_F_DSA_SIG_NEW 109 #define DSA_F_DSA_VERIFY 108 #define DSA_F_I2D_DSA_SIG 111 /* Reason codes. */ #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100 #ifdef __cplusplus } #endif #endif