1*0Sstevel@tonic-gate /* crypto/dsa/dsa.h */ 2*0Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3*0Sstevel@tonic-gate * All rights reserved. 4*0Sstevel@tonic-gate * 5*0Sstevel@tonic-gate * This package is an SSL implementation written 6*0Sstevel@tonic-gate * by Eric Young (eay@cryptsoft.com). 7*0Sstevel@tonic-gate * The implementation was written so as to conform with Netscapes SSL. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * This library is free for commercial and non-commercial use as long as 10*0Sstevel@tonic-gate * the following conditions are aheared to. The following conditions 11*0Sstevel@tonic-gate * apply to all code found in this distribution, be it the RC4, RSA, 12*0Sstevel@tonic-gate * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13*0Sstevel@tonic-gate * included with this distribution is covered by the same copyright terms 14*0Sstevel@tonic-gate * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15*0Sstevel@tonic-gate * 16*0Sstevel@tonic-gate * Copyright remains Eric Young's, and as such any Copyright notices in 17*0Sstevel@tonic-gate * the code are not to be removed. 18*0Sstevel@tonic-gate * If this package is used in a product, Eric Young should be given attribution 19*0Sstevel@tonic-gate * as the author of the parts of the library used. 20*0Sstevel@tonic-gate * This can be in the form of a textual message at program startup or 21*0Sstevel@tonic-gate * in documentation (online or textual) provided with the package. 22*0Sstevel@tonic-gate * 23*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 24*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 25*0Sstevel@tonic-gate * are met: 26*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the copyright 27*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 28*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 29*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 30*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 31*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 32*0Sstevel@tonic-gate * must display the following acknowledgement: 33*0Sstevel@tonic-gate * "This product includes cryptographic software written by 34*0Sstevel@tonic-gate * Eric Young (eay@cryptsoft.com)" 35*0Sstevel@tonic-gate * The word 'cryptographic' can be left out if the rouines from the library 36*0Sstevel@tonic-gate * being used are not cryptographic related :-). 37*0Sstevel@tonic-gate * 4. If you include any Windows specific code (or a derivative thereof) from 38*0Sstevel@tonic-gate * the apps directory (application code) you must include an acknowledgement: 39*0Sstevel@tonic-gate * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40*0Sstevel@tonic-gate * 41*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51*0Sstevel@tonic-gate * SUCH DAMAGE. 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * The licence and distribution terms for any publically available version or 54*0Sstevel@tonic-gate * derivative of this code cannot be changed. i.e. this code cannot simply be 55*0Sstevel@tonic-gate * copied and put under another distribution licence 56*0Sstevel@tonic-gate * [including the GNU Public Licence.] 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate /* 60*0Sstevel@tonic-gate * The DSS routines are based on patches supplied by 61*0Sstevel@tonic-gate * Steven Schoch <schoch@sheba.arc.nasa.gov>. He basically did the 62*0Sstevel@tonic-gate * work and I have just tweaked them a little to fit into my 63*0Sstevel@tonic-gate * stylistic vision for SSLeay :-) */ 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate #ifndef HEADER_DSA_H 66*0Sstevel@tonic-gate #define HEADER_DSA_H 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate #ifdef OPENSSL_NO_DSA 69*0Sstevel@tonic-gate #error DSA is disabled. 70*0Sstevel@tonic-gate #endif 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate #ifndef OPENSSL_NO_BIO 73*0Sstevel@tonic-gate #include <openssl/bio.h> 74*0Sstevel@tonic-gate #endif 75*0Sstevel@tonic-gate #include <openssl/bn.h> 76*0Sstevel@tonic-gate #include <openssl/crypto.h> 77*0Sstevel@tonic-gate #include <openssl/ossl_typ.h> 78*0Sstevel@tonic-gate #ifndef OPENSSL_NO_DH 79*0Sstevel@tonic-gate # include <openssl/dh.h> 80*0Sstevel@tonic-gate #endif 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate #define DSA_FLAG_CACHE_MONT_P 0x01 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate #ifdef __cplusplus 85*0Sstevel@tonic-gate extern "C" { 86*0Sstevel@tonic-gate #endif 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate typedef struct dsa_st DSA; 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate typedef struct DSA_SIG_st 91*0Sstevel@tonic-gate { 92*0Sstevel@tonic-gate BIGNUM *r; 93*0Sstevel@tonic-gate BIGNUM *s; 94*0Sstevel@tonic-gate } DSA_SIG; 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate typedef struct dsa_method { 97*0Sstevel@tonic-gate const char *name; 98*0Sstevel@tonic-gate DSA_SIG * (*dsa_do_sign)(const unsigned char *dgst, int dlen, DSA *dsa); 99*0Sstevel@tonic-gate int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, 100*0Sstevel@tonic-gate BIGNUM **rp); 101*0Sstevel@tonic-gate int (*dsa_do_verify)(const unsigned char *dgst, int dgst_len, 102*0Sstevel@tonic-gate DSA_SIG *sig, DSA *dsa); 103*0Sstevel@tonic-gate int (*dsa_mod_exp)(DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1, 104*0Sstevel@tonic-gate BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx, 105*0Sstevel@tonic-gate BN_MONT_CTX *in_mont); 106*0Sstevel@tonic-gate int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, 107*0Sstevel@tonic-gate const BIGNUM *m, BN_CTX *ctx, 108*0Sstevel@tonic-gate BN_MONT_CTX *m_ctx); /* Can be null */ 109*0Sstevel@tonic-gate int (*init)(DSA *dsa); 110*0Sstevel@tonic-gate int (*finish)(DSA *dsa); 111*0Sstevel@tonic-gate int flags; 112*0Sstevel@tonic-gate char *app_data; 113*0Sstevel@tonic-gate } DSA_METHOD; 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate struct dsa_st 116*0Sstevel@tonic-gate { 117*0Sstevel@tonic-gate /* This first variable is used to pick up errors where 118*0Sstevel@tonic-gate * a DSA is passed instead of of a EVP_PKEY */ 119*0Sstevel@tonic-gate int pad; 120*0Sstevel@tonic-gate long version; 121*0Sstevel@tonic-gate int write_params; 122*0Sstevel@tonic-gate BIGNUM *p; 123*0Sstevel@tonic-gate BIGNUM *q; /* == 20 */ 124*0Sstevel@tonic-gate BIGNUM *g; 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate BIGNUM *pub_key; /* y public key */ 127*0Sstevel@tonic-gate BIGNUM *priv_key; /* x private key */ 128*0Sstevel@tonic-gate 129*0Sstevel@tonic-gate BIGNUM *kinv; /* Signing pre-calc */ 130*0Sstevel@tonic-gate BIGNUM *r; /* Signing pre-calc */ 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate int flags; 133*0Sstevel@tonic-gate /* Normally used to cache montgomery values */ 134*0Sstevel@tonic-gate char *method_mont_p; 135*0Sstevel@tonic-gate int references; 136*0Sstevel@tonic-gate CRYPTO_EX_DATA ex_data; 137*0Sstevel@tonic-gate const DSA_METHOD *meth; 138*0Sstevel@tonic-gate /* functional reference if 'meth' is ENGINE-provided */ 139*0Sstevel@tonic-gate ENGINE *engine; 140*0Sstevel@tonic-gate }; 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate #define DSAparams_dup(x) (DSA *)ASN1_dup((int (*)())i2d_DSAparams, \ 143*0Sstevel@tonic-gate (char *(*)())d2i_DSAparams,(char *)(x)) 144*0Sstevel@tonic-gate #define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \ 145*0Sstevel@tonic-gate (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x)) 146*0Sstevel@tonic-gate #define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \ 147*0Sstevel@tonic-gate (unsigned char *)(x)) 148*0Sstevel@tonic-gate #define d2i_DSAparams_bio(bp,x) (DSA *)ASN1_d2i_bio((char *(*)())DSA_new, \ 149*0Sstevel@tonic-gate (char *(*)())d2i_DSAparams,(bp),(unsigned char **)(x)) 150*0Sstevel@tonic-gate #define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio(i2d_DSAparams,(bp), \ 151*0Sstevel@tonic-gate (unsigned char *)(x)) 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate DSA_SIG * DSA_SIG_new(void); 155*0Sstevel@tonic-gate void DSA_SIG_free(DSA_SIG *a); 156*0Sstevel@tonic-gate int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp); 157*0Sstevel@tonic-gate DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length); 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate DSA_SIG * DSA_do_sign(const unsigned char *dgst,int dlen,DSA *dsa); 160*0Sstevel@tonic-gate int DSA_do_verify(const unsigned char *dgst,int dgst_len, 161*0Sstevel@tonic-gate DSA_SIG *sig,DSA *dsa); 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate const DSA_METHOD *DSA_OpenSSL(void); 164*0Sstevel@tonic-gate 165*0Sstevel@tonic-gate void DSA_set_default_method(const DSA_METHOD *); 166*0Sstevel@tonic-gate const DSA_METHOD *DSA_get_default_method(void); 167*0Sstevel@tonic-gate int DSA_set_method(DSA *dsa, const DSA_METHOD *); 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate DSA * DSA_new(void); 170*0Sstevel@tonic-gate DSA * DSA_new_method(ENGINE *engine); 171*0Sstevel@tonic-gate void DSA_free (DSA *r); 172*0Sstevel@tonic-gate /* "up" the DSA object's reference count */ 173*0Sstevel@tonic-gate int DSA_up_ref(DSA *r); 174*0Sstevel@tonic-gate int DSA_size(const DSA *); 175*0Sstevel@tonic-gate /* next 4 return -1 on error */ 176*0Sstevel@tonic-gate int DSA_sign_setup( DSA *dsa,BN_CTX *ctx_in,BIGNUM **kinvp,BIGNUM **rp); 177*0Sstevel@tonic-gate int DSA_sign(int type,const unsigned char *dgst,int dlen, 178*0Sstevel@tonic-gate unsigned char *sig, unsigned int *siglen, DSA *dsa); 179*0Sstevel@tonic-gate int DSA_verify(int type,const unsigned char *dgst,int dgst_len, 180*0Sstevel@tonic-gate const unsigned char *sigbuf, int siglen, DSA *dsa); 181*0Sstevel@tonic-gate int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 182*0Sstevel@tonic-gate CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 183*0Sstevel@tonic-gate int DSA_set_ex_data(DSA *d, int idx, void *arg); 184*0Sstevel@tonic-gate void *DSA_get_ex_data(DSA *d, int idx); 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate DSA * d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length); 187*0Sstevel@tonic-gate DSA * d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); 188*0Sstevel@tonic-gate DSA * d2i_DSAparams(DSA **a, const unsigned char **pp, long length); 189*0Sstevel@tonic-gate DSA * DSA_generate_parameters(int bits, 190*0Sstevel@tonic-gate unsigned char *seed,int seed_len, 191*0Sstevel@tonic-gate int *counter_ret, unsigned long *h_ret,void 192*0Sstevel@tonic-gate (*callback)(int, int, void *),void *cb_arg); 193*0Sstevel@tonic-gate int DSA_generate_key(DSA *a); 194*0Sstevel@tonic-gate int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); 195*0Sstevel@tonic-gate int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); 196*0Sstevel@tonic-gate int i2d_DSAparams(const DSA *a,unsigned char **pp); 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate #ifndef OPENSSL_NO_BIO 199*0Sstevel@tonic-gate int DSAparams_print(BIO *bp, const DSA *x); 200*0Sstevel@tonic-gate int DSA_print(BIO *bp, const DSA *x, int off); 201*0Sstevel@tonic-gate #endif 202*0Sstevel@tonic-gate #ifndef OPENSSL_NO_FP_API 203*0Sstevel@tonic-gate int DSAparams_print_fp(FILE *fp, const DSA *x); 204*0Sstevel@tonic-gate int DSA_print_fp(FILE *bp, const DSA *x, int off); 205*0Sstevel@tonic-gate #endif 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate #define DSS_prime_checks 50 208*0Sstevel@tonic-gate /* Primality test according to FIPS PUB 186[-1], Appendix 2.1: 209*0Sstevel@tonic-gate * 50 rounds of Rabin-Miller */ 210*0Sstevel@tonic-gate #define DSA_is_prime(n, callback, cb_arg) \ 211*0Sstevel@tonic-gate BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg) 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate #ifndef OPENSSL_NO_DH 214*0Sstevel@tonic-gate /* Convert DSA structure (key or just parameters) into DH structure 215*0Sstevel@tonic-gate * (be careful to avoid small subgroup attacks when using this!) */ 216*0Sstevel@tonic-gate DH *DSA_dup_DH(const DSA *r); 217*0Sstevel@tonic-gate #endif 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate /* BEGIN ERROR CODES */ 220*0Sstevel@tonic-gate /* The following lines are auto generated by the script mkerr.pl. Any changes 221*0Sstevel@tonic-gate * made after this point may be overwritten when the script is next run. 222*0Sstevel@tonic-gate */ 223*0Sstevel@tonic-gate void ERR_load_DSA_strings(void); 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate /* Error codes for the DSA functions. */ 226*0Sstevel@tonic-gate 227*0Sstevel@tonic-gate /* Function codes. */ 228*0Sstevel@tonic-gate #define DSA_F_D2I_DSA_SIG 110 229*0Sstevel@tonic-gate #define DSA_F_DSAPARAMS_PRINT 100 230*0Sstevel@tonic-gate #define DSA_F_DSAPARAMS_PRINT_FP 101 231*0Sstevel@tonic-gate #define DSA_F_DSA_DO_SIGN 112 232*0Sstevel@tonic-gate #define DSA_F_DSA_DO_VERIFY 113 233*0Sstevel@tonic-gate #define DSA_F_DSA_NEW_METHOD 103 234*0Sstevel@tonic-gate #define DSA_F_DSA_PRINT 104 235*0Sstevel@tonic-gate #define DSA_F_DSA_PRINT_FP 105 236*0Sstevel@tonic-gate #define DSA_F_DSA_SIGN 106 237*0Sstevel@tonic-gate #define DSA_F_DSA_SIGN_SETUP 107 238*0Sstevel@tonic-gate #define DSA_F_DSA_SIG_NEW 109 239*0Sstevel@tonic-gate #define DSA_F_DSA_VERIFY 108 240*0Sstevel@tonic-gate #define DSA_F_I2D_DSA_SIG 111 241*0Sstevel@tonic-gate #define DSA_F_SIG_CB 114 242*0Sstevel@tonic-gate 243*0Sstevel@tonic-gate /* Reason codes. */ 244*0Sstevel@tonic-gate #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100 245*0Sstevel@tonic-gate #define DSA_R_MISSING_PARAMETERS 101 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate #ifdef __cplusplus 248*0Sstevel@tonic-gate } 249*0Sstevel@tonic-gate #endif 250*0Sstevel@tonic-gate #endif 251