|  | /* | 
|  | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. | 
|  | * | 
|  | * Licensed under the OpenSSL license (the "License").  You may not use | 
|  | * this file except in compliance with the License.  You can obtain a copy | 
|  | * in the file LICENSE in the source distribution or at | 
|  | * https://www.openssl.org/source/license.html | 
|  | */ | 
|  |  | 
|  | #ifndef HEADER_DSA_H | 
|  | # define HEADER_DSA_H | 
|  |  | 
|  | # include <openssl/opensslconf.h> | 
|  |  | 
|  | # ifndef OPENSSL_NO_DSA | 
|  | # ifdef  __cplusplus | 
|  | extern "C" { | 
|  | # endif | 
|  | # include <openssl/e_os2.h> | 
|  | # include <openssl/bio.h> | 
|  | # include <openssl/crypto.h> | 
|  | # include <openssl/ossl_typ.h> | 
|  | # include <openssl/bn.h> | 
|  | # if OPENSSL_API_COMPAT < 0x10100000L | 
|  | #  include <openssl/dh.h> | 
|  | # endif | 
|  | # include <openssl/dsaerr.h> | 
|  |  | 
|  | # ifndef OPENSSL_DSA_MAX_MODULUS_BITS | 
|  | #  define OPENSSL_DSA_MAX_MODULUS_BITS   10000 | 
|  | # endif | 
|  |  | 
|  | # define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024 | 
|  |  | 
|  | # define DSA_FLAG_CACHE_MONT_P   0x01 | 
|  | # if OPENSSL_API_COMPAT < 0x10100000L | 
|  | /* | 
|  | * Does nothing. Previously this switched off constant time behaviour. | 
|  | */ | 
|  | #  define DSA_FLAG_NO_EXP_CONSTTIME       0x00 | 
|  | # endif | 
|  |  | 
|  | /* | 
|  | * 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 responsibility 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 | 
|  | # define DSA_FLAG_FIPS_CHECKED                   0x0800 | 
|  |  | 
|  | /* Already defined in ossl_typ.h */ | 
|  | /* typedef struct dsa_st DSA; */ | 
|  | /* typedef struct dsa_method DSA_METHOD; */ | 
|  |  | 
|  | typedef struct DSA_SIG_st DSA_SIG; | 
|  |  | 
|  | # 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) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x) | 
|  | # define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x) | 
|  |  | 
|  | 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 *); | 
|  | const DSA_METHOD *DSA_get_method(DSA *d); | 
|  |  | 
|  | 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); | 
|  | int DSA_security_bits(const DSA *d); | 
|  | /* next 4 return -1 on error */ | 
|  | DEPRECATEDIN_1_2_0(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); | 
|  | #define DSA_get_ex_new_index(l, p, newf, dupf, freef) \ | 
|  | CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef) | 
|  | 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 unsigned char **pp, long length); | 
|  | DSA *d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); | 
|  | DSA *d2i_DSAparams(DSA **a, const unsigned char **pp, long length); | 
|  |  | 
|  | /* Deprecated version */ | 
|  | DEPRECATEDIN_0_9_8(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)) | 
|  |  | 
|  | /* 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); | 
|  | int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); | 
|  | int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); | 
|  | int i2d_DSAparams(const DSA *a, unsigned char **pp); | 
|  |  | 
|  | int DSAparams_print(BIO *bp, const DSA *x); | 
|  | int DSA_print(BIO *bp, const DSA *x, int off); | 
|  | # ifndef OPENSSL_NO_STDIO | 
|  | int DSAparams_print_fp(FILE *fp, const DSA *x); | 
|  | int DSA_print_fp(FILE *bp, const DSA *x, int off); | 
|  | # endif | 
|  |  | 
|  | # define DSS_prime_checks 64 | 
|  | /* | 
|  | * Primality test according to FIPS PUB 186-4, Appendix C.3. Since we only | 
|  | * have one value here we set the number of checks to 64 which is the 128 bit | 
|  | * security level that is the highest level and valid for creating a 3072 bit | 
|  | * DSA key. | 
|  | */ | 
|  | # 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 | 
|  |  | 
|  | # 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_CTX_set_dsa_paramgen_q_bits(ctx, qbits) \ | 
|  | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ | 
|  | EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS, qbits, NULL) | 
|  | # define EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, md) \ | 
|  | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ | 
|  | EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0, (void *)(md)) | 
|  |  | 
|  | # 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 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 *dsam); | 
|  | DSA_METHOD *DSA_meth_dup(const DSA_METHOD *dsam); | 
|  | const char *DSA_meth_get0_name(const DSA_METHOD *dsam); | 
|  | int DSA_meth_set1_name(DSA_METHOD *dsam, const char *name); | 
|  | int DSA_meth_get_flags(const DSA_METHOD *dsam); | 
|  | int DSA_meth_set_flags(DSA_METHOD *dsam, int flags); | 
|  | void *DSA_meth_get0_app_data(const DSA_METHOD *dsam); | 
|  | int DSA_meth_set0_app_data(DSA_METHOD *dsam, void *app_data); | 
|  | DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam)) | 
|  | (const unsigned char *, int, DSA *); | 
|  | int DSA_meth_set_sign(DSA_METHOD *dsam, | 
|  | DSA_SIG *(*sign) (const unsigned char *, int, DSA *)); | 
|  | int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam)) | 
|  | (DSA *, BN_CTX *, BIGNUM **, BIGNUM **); | 
|  | int DSA_meth_set_sign_setup(DSA_METHOD *dsam, | 
|  | int (*sign_setup) (DSA *, BN_CTX *, BIGNUM **, BIGNUM **)); | 
|  | int (*DSA_meth_get_verify(const DSA_METHOD *dsam)) | 
|  | (const unsigned char *, int, DSA_SIG *, DSA *); | 
|  | int DSA_meth_set_verify(DSA_METHOD *dsam, | 
|  | int (*verify) (const unsigned char *, int, DSA_SIG *, DSA *)); | 
|  | int (*DSA_meth_get_mod_exp(const DSA_METHOD *dsam)) | 
|  | (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, | 
|  | const BIGNUM *, const BIGNUM *, BN_CTX *, BN_MONT_CTX *); | 
|  | int DSA_meth_set_mod_exp(DSA_METHOD *dsam, | 
|  | int (*mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, | 
|  | const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *, | 
|  | BN_MONT_CTX *)); | 
|  | int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam)) | 
|  | (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, | 
|  | BN_CTX *, BN_MONT_CTX *); | 
|  | int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam, | 
|  | int (*bn_mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, | 
|  | const BIGNUM *, BN_CTX *, BN_MONT_CTX *)); | 
|  | int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *); | 
|  | int DSA_meth_set_init(DSA_METHOD *dsam, int (*init)(DSA *)); | 
|  | int (*DSA_meth_get_finish(const DSA_METHOD *dsam)) (DSA *); | 
|  | int DSA_meth_set_finish(DSA_METHOD *dsam, int (*finish) (DSA *)); | 
|  | int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam)) | 
|  | (DSA *, int, const unsigned char *, int, int *, unsigned long *, | 
|  | BN_GENCB *); | 
|  | int DSA_meth_set_paramgen(DSA_METHOD *dsam, | 
|  | int (*paramgen) (DSA *, int, const unsigned char *, int, int *, | 
|  | unsigned long *, BN_GENCB *)); | 
|  | int (*DSA_meth_get_keygen(const DSA_METHOD *dsam)) (DSA *); | 
|  | int DSA_meth_set_keygen(DSA_METHOD *dsam, int (*keygen) (DSA *)); | 
|  |  | 
|  |  | 
|  | #  ifdef  __cplusplus | 
|  | } | 
|  | #  endif | 
|  | # endif | 
|  | #endif |