/* $OpenBSD: dsa.h,v 1.40 2023/03/04 20:47:04 tb Exp $ */ /* 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 . 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 #ifdef OPENSSL_NO_DSA #error DSA is disabled. #endif #ifndef OPENSSL_NO_BIO #include #endif #include #include #ifndef OPENSSL_NO_DEPRECATED #include #ifndef OPENSSL_NO_DH # include #endif #endif #ifndef OPENSSL_DSA_MAX_MODULUS_BITS # define OPENSSL_DSA_MAX_MODULUS_BITS 10000 #endif #define DSA_FLAG_CACHE_MONT_P 0x01 /* 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 typedef struct DSA_SIG_st DSA_SIG; DSA *d2i_DSAparams_bio(BIO *bp, DSA **a); int i2d_DSAparams_bio(BIO *bp, DSA *a); DSA *d2i_DSAparams_fp(FILE *fp, DSA **a); int i2d_DSAparams_fp(FILE *fp, DSA *a); 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); void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s); 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 *); int DSA_bits(const DSA *d); /* 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); int DSA_security_bits(const DSA *d); DSA *d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length); int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); extern const ASN1_ITEM DSAPublicKey_it; DSA *d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); extern const ASN1_ITEM DSAPrivateKey_it; DSA *d2i_DSAparams(DSA **a, const unsigned char **pp, long length); int i2d_DSAparams(const DSA *a,unsigned char **pp); extern const ASN1_ITEM DSAparams_it; /* 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); #ifndef OPENSSL_NO_BIO int DSAparams_print(BIO *bp, const DSA *x); int DSA_print(BIO *bp, const DSA *x, int off); #endif int DSAparams_print_fp(FILE *fp, const DSA *x); int DSA_print_fp(FILE *bp, const DSA *x, int off); /* * Primality test according to FIPS PUB 186-4, Appendix C.3. Set the number * to 64 rounds of Miller-Rabin, which corresponds to 128 bits of security. * This is necessary for keys of size >= 3072. */ #define DSS_prime_checks 64 #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 void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g); int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g); void DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key); int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key); const BIGNUM *DSA_get0_p(const DSA *d); const BIGNUM *DSA_get0_q(const DSA *d); const BIGNUM *DSA_get0_g(const DSA *d); const BIGNUM *DSA_get0_pub_key(const DSA *d); const BIGNUM *DSA_get0_priv_key(const DSA *d); void DSA_clear_flags(DSA *d, int flags); int DSA_test_flags(const DSA *d, int flags); void DSA_set_flags(DSA *d, int flags); ENGINE *DSA_get0_engine(DSA *d); DSA_METHOD *DSA_meth_new(const char *name, int flags); void DSA_meth_free(DSA_METHOD *meth); DSA_METHOD *DSA_meth_dup(const DSA_METHOD *meth); const char *DSA_meth_get0_name(const DSA_METHOD *meth); int DSA_meth_set1_name(DSA_METHOD *meth, const char *name); int DSA_meth_set_sign(DSA_METHOD *meth, DSA_SIG *(*sign)(const unsigned char *, int, DSA *)); int DSA_meth_set_finish(DSA_METHOD *meth, int (*finish)(DSA *)); #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) 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_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 #ifdef __cplusplus } #endif #endif