sl@0: /* crypto/dsa/dsa.h */ sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) sl@0: * All rights reserved. sl@0: * sl@0: * This package is an SSL implementation written sl@0: * by Eric Young (eay@cryptsoft.com). sl@0: * The implementation was written so as to conform with Netscapes SSL. sl@0: * sl@0: * This library is free for commercial and non-commercial use as long as sl@0: * the following conditions are aheared to. The following conditions sl@0: * apply to all code found in this distribution, be it the RC4, RSA, sl@0: * lhash, DES, etc., code; not just the SSL code. The SSL documentation sl@0: * included with this distribution is covered by the same copyright terms sl@0: * except that the holder is Tim Hudson (tjh@cryptsoft.com). sl@0: * sl@0: * Copyright remains Eric Young's, and as such any Copyright notices in sl@0: * the code are not to be removed. sl@0: * If this package is used in a product, Eric Young should be given attribution sl@0: * as the author of the parts of the library used. sl@0: * This can be in the form of a textual message at program startup or sl@0: * in documentation (online or textual) provided with the package. sl@0: * sl@0: * Redistribution and use in source and binary forms, with or without sl@0: * modification, are permitted provided that the following conditions sl@0: * are met: sl@0: * 1. Redistributions of source code must retain the copyright sl@0: * notice, this list of conditions and the following disclaimer. sl@0: * 2. Redistributions in binary form must reproduce the above copyright sl@0: * notice, this list of conditions and the following disclaimer in the sl@0: * documentation and/or other materials provided with the distribution. sl@0: * 3. All advertising materials mentioning features or use of this software sl@0: * must display the following acknowledgement: sl@0: * "This product includes cryptographic software written by sl@0: * Eric Young (eay@cryptsoft.com)" sl@0: * The word 'cryptographic' can be left out if the rouines from the library sl@0: * being used are not cryptographic related :-). sl@0: * 4. If you include any Windows specific code (or a derivative thereof) from sl@0: * the apps directory (application code) you must include an acknowledgement: sl@0: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" sl@0: * sl@0: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND sl@0: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE sl@0: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE sl@0: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE sl@0: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL sl@0: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS sl@0: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) sl@0: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT sl@0: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY sl@0: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF sl@0: * SUCH DAMAGE. sl@0: * sl@0: * The licence and distribution terms for any publically available version or sl@0: * derivative of this code cannot be changed. i.e. this code cannot simply be sl@0: * copied and put under another distribution licence sl@0: * [including the GNU Public Licence.] sl@0: */ sl@0: /* sl@0: © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. sl@0: */ sl@0: sl@0: /* sl@0: * The DSS routines are based on patches supplied by sl@0: * Steven Schoch . He basically did the sl@0: * work and I have just tweaked them a little to fit into my sl@0: * stylistic vision for SSLeay :-) */ sl@0: sl@0: #ifndef HEADER_DSA_H sl@0: #define HEADER_DSA_H sl@0: #ifdef SYMBIAN sl@0: #include sl@0: #endif sl@0: #include sl@0: sl@0: #ifdef OPENSSL_NO_DSA sl@0: #error DSA is disabled. sl@0: #endif sl@0: sl@0: #ifndef OPENSSL_NO_BIO sl@0: #include sl@0: #endif sl@0: #include sl@0: #include sl@0: sl@0: #ifndef OPENSSL_NO_DEPRECATED sl@0: #include sl@0: #ifndef OPENSSL_NO_DH sl@0: # include sl@0: #endif sl@0: #endif sl@0: #ifndef OPENSSL_DSA_MAX_MODULUS_BITS sl@0: # define OPENSSL_DSA_MAX_MODULUS_BITS 10000 sl@0: #endif sl@0: sl@0: #define DSA_FLAG_CACHE_MONT_P 0x01 sl@0: #define DSA_FLAG_NO_EXP_CONSTTIME 0x02 /* new with 0.9.7h; the built-in DSA sl@0: * implementation now uses constant time sl@0: * modular exponentiation for secret exponents sl@0: * by default. This flag causes the sl@0: * faster variable sliding window method to sl@0: * be used for all exponents. sl@0: */ sl@0: sl@0: #ifdef __cplusplus sl@0: extern "C" { sl@0: #endif sl@0: sl@0: /* Already defined in ossl_typ.h */ sl@0: /* typedef struct dsa_st DSA; */ sl@0: /* typedef struct dsa_method DSA_METHOD; */ sl@0: sl@0: typedef struct DSA_SIG_st sl@0: { sl@0: BIGNUM *r; sl@0: BIGNUM *s; sl@0: } DSA_SIG; sl@0: sl@0: struct dsa_method sl@0: { sl@0: const char *name; sl@0: DSA_SIG * (*dsa_do_sign)(const unsigned char *dgst, int dlen, DSA *dsa); sl@0: int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, sl@0: BIGNUM **rp); sl@0: int (*dsa_do_verify)(const unsigned char *dgst, int dgst_len, sl@0: DSA_SIG *sig, DSA *dsa); sl@0: int (*dsa_mod_exp)(DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1, sl@0: BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx, sl@0: BN_MONT_CTX *in_mont); sl@0: int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, sl@0: const BIGNUM *m, BN_CTX *ctx, sl@0: BN_MONT_CTX *m_ctx); /* Can be null */ sl@0: int (*init)(DSA *dsa); sl@0: int (*finish)(DSA *dsa); sl@0: int flags; sl@0: char *app_data; sl@0: /* If this is non-NULL, it is used to generate DSA parameters */ sl@0: int (*dsa_paramgen)(DSA *dsa, int bits, sl@0: unsigned char *seed, int seed_len, sl@0: int *counter_ret, unsigned long *h_ret, sl@0: BN_GENCB *cb); sl@0: /* If this is non-NULL, it is used to generate DSA keys */ sl@0: int (*dsa_keygen)(DSA *dsa); sl@0: }; sl@0: sl@0: struct dsa_st sl@0: { sl@0: /* This first variable is used to pick up errors where sl@0: * a DSA is passed instead of of a EVP_PKEY */ sl@0: int pad; sl@0: long version; sl@0: int write_params; sl@0: BIGNUM *p; sl@0: BIGNUM *q; /* == 20 */ sl@0: BIGNUM *g; sl@0: sl@0: BIGNUM *pub_key; /* y public key */ sl@0: BIGNUM *priv_key; /* x private key */ sl@0: sl@0: BIGNUM *kinv; /* Signing pre-calc */ sl@0: BIGNUM *r; /* Signing pre-calc */ sl@0: sl@0: int flags; sl@0: /* Normally used to cache montgomery values */ sl@0: BN_MONT_CTX *method_mont_p; sl@0: int references; sl@0: CRYPTO_EX_DATA ex_data; sl@0: const DSA_METHOD *meth; sl@0: /* functional reference if 'meth' is ENGINE-provided */ sl@0: ENGINE *engine; sl@0: }; sl@0: sl@0: #define DSAparams_dup(x) ASN1_dup_of_const(DSA,i2d_DSAparams,d2i_DSAparams,x) sl@0: #define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \ sl@0: (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x)) sl@0: #define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \ sl@0: (unsigned char *)(x)) sl@0: #define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x) sl@0: #define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x) sl@0: sl@0: sl@0: IMPORT_C DSA_SIG * DSA_SIG_new(void); sl@0: IMPORT_C void DSA_SIG_free(DSA_SIG *a); sl@0: IMPORT_C int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp); sl@0: IMPORT_C DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length); sl@0: sl@0: IMPORT_C DSA_SIG * DSA_do_sign(const unsigned char *dgst,int dlen,DSA *dsa); sl@0: IMPORT_C int DSA_do_verify(const unsigned char *dgst,int dgst_len, sl@0: DSA_SIG *sig,DSA *dsa); sl@0: sl@0: IMPORT_C const DSA_METHOD *DSA_OpenSSL(void); sl@0: sl@0: IMPORT_C void DSA_set_default_method(const DSA_METHOD *); sl@0: IMPORT_C const DSA_METHOD *DSA_get_default_method(void); sl@0: IMPORT_C int DSA_set_method(DSA *dsa, const DSA_METHOD *); sl@0: sl@0: IMPORT_C DSA * DSA_new(void); sl@0: IMPORT_C DSA * DSA_new_method(ENGINE *engine); sl@0: IMPORT_C void DSA_free (DSA *r); sl@0: /* "up" the DSA object's reference count */ sl@0: IMPORT_C int DSA_up_ref(DSA *r); sl@0: IMPORT_C int DSA_size(const DSA *); sl@0: /* next 4 return -1 on error */ sl@0: IMPORT_C int DSA_sign_setup( DSA *dsa,BN_CTX *ctx_in,BIGNUM **kinvp,BIGNUM **rp); sl@0: IMPORT_C int DSA_sign(int type,const unsigned char *dgst,int dlen, sl@0: unsigned char *sig, unsigned int *siglen, DSA *dsa); sl@0: IMPORT_C int DSA_verify(int type,const unsigned char *dgst,int dgst_len, sl@0: const unsigned char *sigbuf, int siglen, DSA *dsa); sl@0: IMPORT_C int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, sl@0: CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); sl@0: IMPORT_C int DSA_set_ex_data(DSA *d, int idx, void *arg); sl@0: IMPORT_C void *DSA_get_ex_data(DSA *d, int idx); sl@0: sl@0: IMPORT_C DSA * d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length); sl@0: IMPORT_C DSA * d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); sl@0: IMPORT_C DSA * d2i_DSAparams(DSA **a, const unsigned char **pp, long length); sl@0: sl@0: /* Deprecated version */ sl@0: #ifndef OPENSSL_NO_DEPRECATED sl@0: IMPORT_C DSA * DSA_generate_parameters(int bits, sl@0: unsigned char *seed,int seed_len, sl@0: int *counter_ret, unsigned long *h_ret,void sl@0: (*callback)(int, int, void *),void *cb_arg); sl@0: #endif /* !defined(OPENSSL_NO_DEPRECATED) */ sl@0: sl@0: /* New version */ sl@0: IMPORT_C int DSA_generate_parameters_ex(DSA *dsa, int bits, sl@0: unsigned char *seed,int seed_len, sl@0: int *counter_ret, unsigned long *h_ret, BN_GENCB *cb); sl@0: sl@0: IMPORT_C int DSA_generate_key(DSA *a); sl@0: IMPORT_C int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); sl@0: IMPORT_C int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); sl@0: IMPORT_C int i2d_DSAparams(const DSA *a,unsigned char **pp); sl@0: sl@0: #ifndef OPENSSL_NO_BIO sl@0: IMPORT_C int DSAparams_print(BIO *bp, const DSA *x); sl@0: IMPORT_C int DSA_print(BIO *bp, const DSA *x, int off); sl@0: #endif sl@0: #ifndef OPENSSL_NO_FP_API sl@0: IMPORT_C int DSAparams_print_fp(FILE *fp, const DSA *x); sl@0: IMPORT_C int DSA_print_fp(FILE *bp, const DSA *x, int off); sl@0: #endif sl@0: sl@0: #define DSS_prime_checks 50 sl@0: /* Primality test according to FIPS PUB 186[-1], Appendix 2.1: sl@0: * 50 rounds of Rabin-Miller */ sl@0: #define DSA_is_prime(n, callback, cb_arg) \ sl@0: BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg) sl@0: sl@0: #ifndef OPENSSL_NO_DH sl@0: /* Convert DSA structure (key or just parameters) into DH structure sl@0: * (be careful to avoid small subgroup attacks when using this!) */ sl@0: IMPORT_C DH *DSA_dup_DH(const DSA *r); sl@0: #endif sl@0: sl@0: /* BEGIN ERROR CODES */ sl@0: /* The following lines are auto generated by the script mkerr.pl. Any changes sl@0: * made after this point may be overwritten when the script is next run. sl@0: */ sl@0: IMPORT_C void ERR_load_DSA_strings(void); sl@0: sl@0: /* Error codes for the DSA functions. */ sl@0: sl@0: /* Function codes. */ sl@0: #define DSA_F_D2I_DSA_SIG 110 sl@0: #define DSA_F_DSAPARAMS_PRINT 100 sl@0: #define DSA_F_DSAPARAMS_PRINT_FP 101 sl@0: #define DSA_F_DSA_DO_SIGN 112 sl@0: #define DSA_F_DSA_DO_VERIFY 113 sl@0: #define DSA_F_DSA_NEW_METHOD 103 sl@0: #define DSA_F_DSA_PRINT 104 sl@0: #define DSA_F_DSA_PRINT_FP 105 sl@0: #define DSA_F_DSA_SIGN 106 sl@0: #define DSA_F_DSA_SIGN_SETUP 107 sl@0: #define DSA_F_DSA_SIG_NEW 109 sl@0: #define DSA_F_DSA_VERIFY 108 sl@0: #define DSA_F_I2D_DSA_SIG 111 sl@0: #define DSA_F_SIG_CB 114 sl@0: sl@0: /* Reason codes. */ sl@0: #define DSA_R_BAD_Q_VALUE 102 sl@0: #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100 sl@0: #define DSA_R_MISSING_PARAMETERS 101 sl@0: #define DSA_R_MODULUS_TOO_LARGE 103 sl@0: sl@0: sl@0: #ifdef __cplusplus sl@0: } sl@0: #endif sl@0: #endif