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21dcbebc | 1 | /* |
6738bf14 | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
0f113f3e | 3 | * |
48f4ad77 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
21dcbebc RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
ae4186b0 DMSP |
10 | #ifndef OPENSSL_DSA_H |
11 | # define OPENSSL_DSA_H | |
d02b48c6 | 12 | |
3c27208f | 13 | # include <openssl/opensslconf.h> |
751ff1d3 | 14 | |
3c27208f RS |
15 | # ifndef OPENSSL_NO_DSA |
16 | # ifdef __cplusplus | |
17 | extern "C" { | |
0f113f3e | 18 | # endif |
3c27208f | 19 | # include <openssl/e_os2.h> |
9fdcc21f | 20 | # include <openssl/asn1.h> |
a00ae6c4 | 21 | # include <openssl/bio.h> |
0f113f3e | 22 | # include <openssl/crypto.h> |
50cd4768 | 23 | # include <openssl/types.h> |
6e9fa57c | 24 | # include <openssl/bn.h> |
fcd2d5a6 | 25 | # if !OPENSSL_API_1_1_0 |
3c27208f | 26 | # include <openssl/dh.h> |
0f113f3e | 27 | # endif |
52df25cf | 28 | # include <openssl/dsaerr.h> |
d02b48c6 | 29 | |
0f113f3e MC |
30 | # ifndef OPENSSL_DSA_MAX_MODULUS_BITS |
31 | # define OPENSSL_DSA_MAX_MODULUS_BITS 10000 | |
32 | # endif | |
33 | ||
34 | # define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024 | |
5e3225cc | 35 | |
0f113f3e | 36 | # define DSA_FLAG_CACHE_MONT_P 0x01 |
fcd2d5a6 | 37 | # if !OPENSSL_API_1_1_0 |
0f113f3e | 38 | /* |
5584f65a | 39 | * Does nothing. Previously this switched off constant time behaviour. |
68d39f3c | 40 | */ |
5584f65a MC |
41 | # define DSA_FLAG_NO_EXP_CONSTTIME 0x00 |
42 | # endif | |
dfeab068 | 43 | |
0f113f3e MC |
44 | /* |
45 | * If this flag is set the DSA method is FIPS compliant and can be used in | |
46 | * FIPS mode. This is set in the validated module method. If an application | |
8483a003 | 47 | * sets this flag in its own methods it is its responsibility to ensure the |
0f113f3e | 48 | * result is compliant. |
20818e00 DSH |
49 | */ |
50 | ||
0f113f3e | 51 | # define DSA_FLAG_FIPS_METHOD 0x0400 |
20818e00 | 52 | |
0f113f3e MC |
53 | /* |
54 | * If this flag is set the operations normally disabled in FIPS mode are | |
20818e00 DSH |
55 | * permitted it is then the applications responsibility to ensure that the |
56 | * usage is compliant. | |
57 | */ | |
58 | ||
0f113f3e MC |
59 | # define DSA_FLAG_NON_FIPS_ALLOW 0x0400 |
60 | # define DSA_FLAG_FIPS_CHECKED 0x0800 | |
20818e00 | 61 | |
3a87a9b9 GT |
62 | /* Already defined in ossl_typ.h */ |
63 | /* typedef struct dsa_st DSA; */ | |
64 | /* typedef struct dsa_method DSA_METHOD; */ | |
c0711f7f | 65 | |
706a13f1 | 66 | typedef struct DSA_SIG_st DSA_SIG; |
0f113f3e | 67 | |
0f113f3e MC |
68 | # define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \ |
69 | (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x)) | |
70 | # define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \ | |
71 | (unsigned char *)(x)) | |
72 | # define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x) | |
9fdcc21f | 73 | # define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of(DSA,i2d_DSAparams,bp,x) |
d02b48c6 | 74 | |
9fdcc21f | 75 | DECLARE_ASN1_DUP_FUNCTION_name(DSA, DSAparams) |
0f113f3e MC |
76 | DSA_SIG *DSA_SIG_new(void); |
77 | void DSA_SIG_free(DSA_SIG *a); | |
9fdcc21f | 78 | DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA_SIG, DSA_SIG) |
9267c11b | 79 | void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); |
1d454d58 | 80 | int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s); |
a8da8918 | 81 | |
0f113f3e MC |
82 | DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa); |
83 | int DSA_do_verify(const unsigned char *dgst, int dgst_len, | |
84 | DSA_SIG *sig, DSA *dsa); | |
a8da8918 | 85 | |
a4aba800 | 86 | const DSA_METHOD *DSA_OpenSSL(void); |
c0711f7f | 87 | |
0f113f3e | 88 | void DSA_set_default_method(const DSA_METHOD *); |
cb78486d | 89 | const DSA_METHOD *DSA_get_default_method(void); |
0f113f3e | 90 | int DSA_set_method(DSA *dsa, const DSA_METHOD *); |
6e9fa57c | 91 | const DSA_METHOD *DSA_get_method(DSA *d); |
f8463356 | 92 | |
0f113f3e MC |
93 | DSA *DSA_new(void); |
94 | DSA *DSA_new_method(ENGINE *engine); | |
95 | void DSA_free(DSA *r); | |
5cbc2e8b | 96 | /* "up" the DSA object's reference count */ |
0f113f3e MC |
97 | int DSA_up_ref(DSA *r); |
98 | int DSA_size(const DSA *); | |
5d8d9a8e | 99 | int DSA_bits(const DSA *d); |
0f113f3e MC |
100 | int DSA_security_bits(const DSA *d); |
101 | /* next 4 return -1 on error */ | |
672f943a | 102 | DEPRECATEDIN_3(int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)) |
0f113f3e MC |
103 | int DSA_sign(int type, const unsigned char *dgst, int dlen, |
104 | unsigned char *sig, unsigned int *siglen, DSA *dsa); | |
105 | int DSA_verify(int type, const unsigned char *dgst, int dgst_len, | |
106 | const unsigned char *sigbuf, int siglen, DSA *dsa); | |
e6390aca RS |
107 | #define DSA_get_ex_new_index(l, p, newf, dupf, freef) \ |
108 | CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, l, p, newf, dupf, freef) | |
dd9d233e DSH |
109 | int DSA_set_ex_data(DSA *d, int idx, void *arg); |
110 | void *DSA_get_ex_data(DSA *d, int idx); | |
d02b48c6 | 111 | |
9fdcc21f DO |
112 | DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA, DSAPublicKey) |
113 | DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA, DSAPrivateKey) | |
114 | DECLARE_ASN1_ENCODE_FUNCTIONS_only(DSA, DSAparams) | |
e9224c71 GT |
115 | |
116 | /* Deprecated version */ | |
98186eb4 | 117 | DEPRECATEDIN_0_9_8(DSA *DSA_generate_parameters(int bits, |
0f113f3e MC |
118 | unsigned char *seed, |
119 | int seed_len, | |
120 | int *counter_ret, | |
121 | unsigned long *h_ret, void | |
122 | (*callback) (int, int, | |
123 | void *), | |
98186eb4 | 124 | void *cb_arg)) |
e9224c71 GT |
125 | |
126 | /* New version */ | |
0f113f3e MC |
127 | int DSA_generate_parameters_ex(DSA *dsa, int bits, |
128 | const unsigned char *seed, int seed_len, | |
129 | int *counter_ret, unsigned long *h_ret, | |
130 | BN_GENCB *cb); | |
131 | ||
132 | int DSA_generate_key(DSA *a); | |
0f113f3e | 133 | |
0f113f3e MC |
134 | int DSAparams_print(BIO *bp, const DSA *x); |
135 | int DSA_print(BIO *bp, const DSA *x, int off); | |
0f113f3e MC |
136 | # ifndef OPENSSL_NO_STDIO |
137 | int DSAparams_print_fp(FILE *fp, const DSA *x); | |
138 | int DSA_print_fp(FILE *bp, const DSA *x, int off); | |
139 | # endif | |
140 | ||
74ee3796 | 141 | # define DSS_prime_checks 64 |
0f113f3e | 142 | /* |
74ee3796 KR |
143 | * Primality test according to FIPS PUB 186-4, Appendix C.3. Since we only |
144 | * have one value here we set the number of checks to 64 which is the 128 bit | |
145 | * security level that is the highest level and valid for creating a 3072 bit | |
146 | * DSA key. | |
0f113f3e MC |
147 | */ |
148 | # define DSA_is_prime(n, callback, cb_arg) \ | |
149 | BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg) | |
d02b48c6 | 150 | |
0f113f3e MC |
151 | # ifndef OPENSSL_NO_DH |
152 | /* | |
153 | * Convert DSA structure (key or just parameters) into DH structure (be | |
154 | * careful to avoid small subgroup attacks when using this!) | |
155 | */ | |
a4aba800 | 156 | DH *DSA_dup_DH(const DSA *r); |
0f113f3e | 157 | # endif |
48c843c3 | 158 | |
0f113f3e MC |
159 | # define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \ |
160 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ | |
161 | EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL) | |
a97faad7 DB |
162 | # define EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, qbits) \ |
163 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ | |
164 | EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS, qbits, NULL) | |
165 | # define EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, md) \ | |
166 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, \ | |
167 | EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0, (void *)(md)) | |
c927df3f | 168 | |
0f113f3e MC |
169 | # define EVP_PKEY_CTRL_DSA_PARAMGEN_BITS (EVP_PKEY_ALG_CTRL + 1) |
170 | # define EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS (EVP_PKEY_ALG_CTRL + 2) | |
171 | # define EVP_PKEY_CTRL_DSA_PARAMGEN_MD (EVP_PKEY_ALG_CTRL + 3) | |
c927df3f | 172 | |
fd809cfd RL |
173 | void DSA_get0_pqg(const DSA *d, |
174 | const BIGNUM **p, const BIGNUM **q, const BIGNUM **g); | |
1258396d | 175 | int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g); |
fd809cfd RL |
176 | void DSA_get0_key(const DSA *d, |
177 | const BIGNUM **pub_key, const BIGNUM **priv_key); | |
1258396d | 178 | int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key); |
e6f35b57 DMSP |
179 | const BIGNUM *DSA_get0_p(const DSA *d); |
180 | const BIGNUM *DSA_get0_q(const DSA *d); | |
181 | const BIGNUM *DSA_get0_g(const DSA *d); | |
182 | const BIGNUM *DSA_get0_pub_key(const DSA *d); | |
183 | const BIGNUM *DSA_get0_priv_key(const DSA *d); | |
1258396d MC |
184 | void DSA_clear_flags(DSA *d, int flags); |
185 | int DSA_test_flags(const DSA *d, int flags); | |
186 | void DSA_set_flags(DSA *d, int flags); | |
187 | ENGINE *DSA_get0_engine(DSA *d); | |
188 | ||
6e9fa57c MC |
189 | DSA_METHOD *DSA_meth_new(const char *name, int flags); |
190 | void DSA_meth_free(DSA_METHOD *dsam); | |
a517f7fc MC |
191 | DSA_METHOD *DSA_meth_dup(const DSA_METHOD *dsam); |
192 | const char *DSA_meth_get0_name(const DSA_METHOD *dsam); | |
193 | int DSA_meth_set1_name(DSA_METHOD *dsam, const char *name); | |
693be9a2 | 194 | int DSA_meth_get_flags(const DSA_METHOD *dsam); |
6e9fa57c | 195 | int DSA_meth_set_flags(DSA_METHOD *dsam, int flags); |
aa05e7ca MC |
196 | void *DSA_meth_get0_app_data(const DSA_METHOD *dsam); |
197 | int DSA_meth_set0_app_data(DSA_METHOD *dsam, void *app_data); | |
6e9fa57c MC |
198 | DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam)) |
199 | (const unsigned char *, int, DSA *); | |
200 | int DSA_meth_set_sign(DSA_METHOD *dsam, | |
201 | DSA_SIG *(*sign) (const unsigned char *, int, DSA *)); | |
202 | int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam)) | |
203 | (DSA *, BN_CTX *, BIGNUM **, BIGNUM **); | |
204 | int DSA_meth_set_sign_setup(DSA_METHOD *dsam, | |
205 | int (*sign_setup) (DSA *, BN_CTX *, BIGNUM **, BIGNUM **)); | |
206 | int (*DSA_meth_get_verify(const DSA_METHOD *dsam)) | |
28b86f31 | 207 | (const unsigned char *, int, DSA_SIG *, DSA *); |
6e9fa57c MC |
208 | int DSA_meth_set_verify(DSA_METHOD *dsam, |
209 | int (*verify) (const unsigned char *, int, DSA_SIG *, DSA *)); | |
210 | int (*DSA_meth_get_mod_exp(const DSA_METHOD *dsam)) | |
24bf6f3c BL |
211 | (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, |
212 | const BIGNUM *, const BIGNUM *, BN_CTX *, BN_MONT_CTX *); | |
6e9fa57c | 213 | int DSA_meth_set_mod_exp(DSA_METHOD *dsam, |
24bf6f3c BL |
214 | int (*mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, |
215 | const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *, | |
216 | BN_MONT_CTX *)); | |
6e9fa57c | 217 | int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam)) |
24bf6f3c BL |
218 | (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, |
219 | BN_CTX *, BN_MONT_CTX *); | |
6e9fa57c | 220 | int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam, |
24bf6f3c | 221 | int (*bn_mod_exp) (DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, |
6e9fa57c MC |
222 | const BIGNUM *, BN_CTX *, BN_MONT_CTX *)); |
223 | int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *); | |
224 | int DSA_meth_set_init(DSA_METHOD *dsam, int (*init)(DSA *)); | |
225 | int (*DSA_meth_get_finish(const DSA_METHOD *dsam)) (DSA *); | |
226 | int DSA_meth_set_finish(DSA_METHOD *dsam, int (*finish) (DSA *)); | |
227 | int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam)) | |
228 | (DSA *, int, const unsigned char *, int, int *, unsigned long *, | |
229 | BN_GENCB *); | |
230 | int DSA_meth_set_paramgen(DSA_METHOD *dsam, | |
231 | int (*paramgen) (DSA *, int, const unsigned char *, int, int *, | |
232 | unsigned long *, BN_GENCB *)); | |
233 | int (*DSA_meth_get_keygen(const DSA_METHOD *dsam)) (DSA *); | |
234 | int DSA_meth_set_keygen(DSA_METHOD *dsam, int (*keygen) (DSA *)); | |
235 | ||
6d311938 | 236 | |
0cd0a820 | 237 | # ifdef __cplusplus |
d02b48c6 | 238 | } |
0cd0a820 | 239 | # endif |
3c27208f | 240 | # endif |
d02b48c6 | 241 | #endif |