jpayne@69: /* jpayne@69: * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. jpayne@69: * jpayne@69: * Licensed under the OpenSSL license (the "License"). You may not use jpayne@69: * this file except in compliance with the License. You can obtain a copy jpayne@69: * in the file LICENSE in the source distribution or at jpayne@69: * https://www.openssl.org/source/license.html jpayne@69: */ jpayne@69: jpayne@69: #ifndef HEADER_DSA_H jpayne@69: # define HEADER_DSA_H jpayne@69: jpayne@69: # include jpayne@69: jpayne@69: # ifndef OPENSSL_NO_DSA jpayne@69: # ifdef __cplusplus jpayne@69: extern "C" { jpayne@69: # endif jpayne@69: # include jpayne@69: # include jpayne@69: # include jpayne@69: # include jpayne@69: # include jpayne@69: # if OPENSSL_API_COMPAT < 0x10100000L jpayne@69: # include jpayne@69: # endif jpayne@69: # include jpayne@69: jpayne@69: # ifndef OPENSSL_DSA_MAX_MODULUS_BITS jpayne@69: # define OPENSSL_DSA_MAX_MODULUS_BITS 10000 jpayne@69: # endif jpayne@69: jpayne@69: # define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024 jpayne@69: jpayne@69: # define DSA_FLAG_CACHE_MONT_P 0x01 jpayne@69: # if OPENSSL_API_COMPAT < 0x10100000L jpayne@69: /* jpayne@69: * Does nothing. Previously this switched off constant time behaviour. jpayne@69: */ jpayne@69: # define DSA_FLAG_NO_EXP_CONSTTIME 0x00 jpayne@69: # endif jpayne@69: jpayne@69: /* jpayne@69: * If this flag is set the DSA method is FIPS compliant and can be used in jpayne@69: * FIPS mode. This is set in the validated module method. If an application jpayne@69: * sets this flag in its own methods it is its responsibility to ensure the jpayne@69: * result is compliant. jpayne@69: */ jpayne@69: jpayne@69: # define DSA_FLAG_FIPS_METHOD 0x0400 jpayne@69: jpayne@69: /* jpayne@69: * If this flag is set the operations normally disabled in FIPS mode are jpayne@69: * permitted it is then the applications responsibility to ensure that the jpayne@69: * usage is compliant. jpayne@69: */ jpayne@69: jpayne@69: # define DSA_FLAG_NON_FIPS_ALLOW 0x0400 jpayne@69: # define DSA_FLAG_FIPS_CHECKED 0x0800 jpayne@69: jpayne@69: /* Already defined in ossl_typ.h */ jpayne@69: /* typedef struct dsa_st DSA; */ jpayne@69: /* typedef struct dsa_method DSA_METHOD; */ jpayne@69: jpayne@69: typedef struct DSA_SIG_st DSA_SIG; jpayne@69: jpayne@69: # define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \ jpayne@69: (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x)) jpayne@69: # define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \ jpayne@69: (unsigned char *)(x)) jpayne@69: # define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x) jpayne@69: # define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x) jpayne@69: jpayne@69: DSA *DSAparams_dup(DSA *x); jpayne@69: DSA_SIG *DSA_SIG_new(void); jpayne@69: void DSA_SIG_free(DSA_SIG *a); jpayne@69: int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp); jpayne@69: DSA_SIG *d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length); jpayne@69: void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); jpayne@69: int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s); jpayne@69: jpayne@69: DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa); jpayne@69: int DSA_do_verify(const unsigned char *dgst, int dgst_len, jpayne@69: DSA_SIG *sig, DSA *dsa); jpayne@69: jpayne@69: const DSA_METHOD *DSA_OpenSSL(void); jpayne@69: jpayne@69: void DSA_set_default_method(const DSA_METHOD *); jpayne@69: const DSA_METHOD *DSA_get_default_method(void); jpayne@69: int DSA_set_method(DSA *dsa, const DSA_METHOD *); jpayne@69: const DSA_METHOD *DSA_get_method(DSA *d); jpayne@69: jpayne@69: DSA *DSA_new(void); jpayne@69: DSA *DSA_new_method(ENGINE *engine); jpayne@69: void DSA_free(DSA *r); jpayne@69: /* "up" the DSA object's reference count */ jpayne@69: int DSA_up_ref(DSA *r); jpayne@69: int DSA_size(const DSA *); jpayne@69: int DSA_bits(const DSA *d); jpayne@69: int DSA_security_bits(const DSA *d); jpayne@69: /* next 4 return -1 on error */ jpayne@69: DEPRECATEDIN_1_2_0(int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)) jpayne@69: int DSA_sign(int type, const unsigned char *dgst, int dlen, jpayne@69: unsigned char *sig, unsigned int *siglen, DSA *dsa); jpayne@69: int DSA_verify(int type, const unsigned char *dgst, int dgst_len, jpayne@69: const unsigned char *sigbuf, int siglen, DSA *dsa); jpayne@69: #define DSA_get_ex_new_index(l, p, newf, dupf, freef) \ jpayne@69: CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef) jpayne@69: int DSA_set_ex_data(DSA *d, int idx, void *arg); jpayne@69: void *DSA_get_ex_data(DSA *d, int idx); jpayne@69: jpayne@69: DSA *d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length); jpayne@69: DSA *d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length); jpayne@69: DSA *d2i_DSAparams(DSA **a, const unsigned char **pp, long length); jpayne@69: jpayne@69: /* Deprecated version */ jpayne@69: DEPRECATEDIN_0_9_8(DSA *DSA_generate_parameters(int bits, jpayne@69: unsigned char *seed, jpayne@69: int seed_len, jpayne@69: int *counter_ret, jpayne@69: unsigned long *h_ret, void jpayne@69: (*callback) (int, int, jpayne@69: void *), jpayne@69: void *cb_arg)) jpayne@69: jpayne@69: /* New version */ jpayne@69: int DSA_generate_parameters_ex(DSA *dsa, int bits, jpayne@69: const unsigned char *seed, int seed_len, jpayne@69: int *counter_ret, unsigned long *h_ret, jpayne@69: BN_GENCB *cb); jpayne@69: jpayne@69: int DSA_generate_key(DSA *a); jpayne@69: int i2d_DSAPublicKey(const DSA *a, unsigned char **pp); jpayne@69: int i2d_DSAPrivateKey(const DSA *a, unsigned char **pp); jpayne@69: int i2d_DSAparams(const DSA *a, unsigned char **pp); jpayne@69: jpayne@69: int DSAparams_print(BIO *bp, const DSA *x); jpayne@69: int DSA_print(BIO *bp, const DSA *x, int off); jpayne@69: # ifndef OPENSSL_NO_STDIO jpayne@69: int DSAparams_print_fp(FILE *fp, const DSA *x); jpayne@69: int DSA_print_fp(FILE *bp, const DSA *x, int off); jpayne@69: # endif jpayne@69: jpayne@69: # define DSS_prime_checks 64 jpayne@69: /* jpayne@69: * Primality test according to FIPS PUB 186-4, Appendix C.3. Since we only jpayne@69: * have one value here we set the number of checks to 64 which is the 128 bit jpayne@69: * security level that is the highest level and valid for creating a 3072 bit jpayne@69: * DSA key. jpayne@69: */ jpayne@69: # define DSA_is_prime(n, callback, cb_arg) \ jpayne@69: BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg) jpayne@69: jpayne@69: # ifndef OPENSSL_NO_DH jpayne@69: /* jpayne@69: * Convert DSA structure (key or just parameters) into DH structure (be jpayne@69: * careful to avoid small subgroup attacks when using this!) jpayne@69: */ jpayne@69: DH *DSA_dup_DH(const DSA *r); jpayne@69: # endif jpayne@69: jpayne@69: # define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \ jpayne@69: EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ jpayne@69: EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL) jpayne@69: # define EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, qbits) \ jpayne@69: EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ jpayne@69: EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS, qbits, NULL) jpayne@69: # define EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, md) \ jpayne@69: EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ jpayne@69: EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0, (void *)(md)) jpayne@69: jpayne@69: # define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1) jpayne@69: # define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2) jpayne@69: # define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3) jpayne@69: jpayne@69: void DSA_get0_pqg(const DSA *d, jpayne@69: const BIGNUM **p, const BIGNUM **q, const BIGNUM **g); jpayne@69: int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g); jpayne@69: void DSA_get0_key(const DSA *d, jpayne@69: const BIGNUM **pub_key, const BIGNUM **priv_key); jpayne@69: int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key); jpayne@69: const BIGNUM *DSA_get0_p(const DSA *d); jpayne@69: const BIGNUM *DSA_get0_q(const DSA *d); jpayne@69: const BIGNUM *DSA_get0_g(const DSA *d); jpayne@69: const BIGNUM *DSA_get0_pub_key(const DSA *d); jpayne@69: const BIGNUM *DSA_get0_priv_key(const DSA *d); jpayne@69: void DSA_clear_flags(DSA *d, int flags); jpayne@69: int DSA_test_flags(const DSA *d, int flags); jpayne@69: void DSA_set_flags(DSA *d, int flags); jpayne@69: ENGINE *DSA_get0_engine(DSA *d); jpayne@69: jpayne@69: DSA_METHOD *DSA_meth_new(const char *name, int flags); jpayne@69: void DSA_meth_free(DSA_METHOD *dsam); jpayne@69: DSA_METHOD *DSA_meth_dup(const DSA_METHOD *dsam); jpayne@69: const char *DSA_meth_get0_name(const DSA_METHOD *dsam); jpayne@69: int DSA_meth_set1_name(DSA_METHOD *dsam, const char *name); jpayne@69: int DSA_meth_get_flags(const DSA_METHOD *dsam); jpayne@69: int DSA_meth_set_flags(DSA_METHOD *dsam, int flags); jpayne@69: void *DSA_meth_get0_app_data(const DSA_METHOD *dsam); jpayne@69: int DSA_meth_set0_app_data(DSA_METHOD *dsam, void *app_data); jpayne@69: DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam)) jpayne@69: (const unsigned char *, int, DSA *); jpayne@69: int DSA_meth_set_sign(DSA_METHOD *dsam, jpayne@69: DSA_SIG *(*sign) (const unsigned char *, int, DSA *)); jpayne@69: int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam)) jpayne@69: (DSA *, BN_CTX *, BIGNUM **, BIGNUM **); jpayne@69: int DSA_meth_set_sign_setup(DSA_METHOD *dsam, jpayne@69: int (*sign_setup) (DSA *, BN_CTX *, BIGNUM **, BIGNUM **)); jpayne@69: int (*DSA_meth_get_verify(const DSA_METHOD *dsam)) jpayne@69: (const unsigned char *, int, DSA_SIG *, DSA *); jpayne@69: int DSA_meth_set_verify(DSA_METHOD *dsam, jpayne@69: int (*verify) (const unsigned char *, int, DSA_SIG *, DSA *)); jpayne@69: int (*DSA_meth_get_mod_exp(const DSA_METHOD *dsam)) jpayne@69: (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, jpayne@69: const BIGNUM *, const BIGNUM *, BN_CTX *, BN_MONT_CTX *); jpayne@69: int DSA_meth_set_mod_exp(DSA_METHOD *dsam, jpayne@69: int (*mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, jpayne@69: const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *, jpayne@69: BN_MONT_CTX *)); jpayne@69: int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam)) jpayne@69: (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, jpayne@69: BN_CTX *, BN_MONT_CTX *); jpayne@69: int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam, jpayne@69: int (*bn_mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, jpayne@69: const BIGNUM *, BN_CTX *, BN_MONT_CTX *)); jpayne@69: int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *); jpayne@69: int DSA_meth_set_init(DSA_METHOD *dsam, int (*init)(DSA *)); jpayne@69: int (*DSA_meth_get_finish(const DSA_METHOD *dsam)) (DSA *); jpayne@69: int DSA_meth_set_finish(DSA_METHOD *dsam, int (*finish) (DSA *)); jpayne@69: int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam)) jpayne@69: (DSA *, int, const unsigned char *, int, int *, unsigned long *, jpayne@69: BN_GENCB *); jpayne@69: int DSA_meth_set_paramgen(DSA_METHOD *dsam, jpayne@69: int (*paramgen) (DSA *, int, const unsigned char *, int, int *, jpayne@69: unsigned long *, BN_GENCB *)); jpayne@69: int (*DSA_meth_get_keygen(const DSA_METHOD *dsam)) (DSA *); jpayne@69: int DSA_meth_set_keygen(DSA_METHOD *dsam, int (*keygen) (DSA *)); jpayne@69: jpayne@69: jpayne@69: # ifdef __cplusplus jpayne@69: } jpayne@69: # endif jpayne@69: # endif jpayne@69: #endif