2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
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
11 * DSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/dsa.h>
17 #include <openssl/err.h>
18 #include "prov/bio.h" /* ossl_prov_bio_printf() */
19 #include "prov/implementations.h" /* rsa_keymgmt_functions */
20 #include "prov/providercommonerr.h" /* PROV_R_BN_ERROR */
21 #include "serializer_local.h"
23 OSSL_OP_keymgmt_new_fn
*ossl_prov_get_keymgmt_dsa_new(void)
25 return ossl_prov_get_keymgmt_new(dsa_keymgmt_functions
);
28 OSSL_OP_keymgmt_free_fn
*ossl_prov_get_keymgmt_dsa_free(void)
30 return ossl_prov_get_keymgmt_free(dsa_keymgmt_functions
);
33 OSSL_OP_keymgmt_import_fn
*ossl_prov_get_keymgmt_dsa_import(void)
35 return ossl_prov_get_keymgmt_import(dsa_keymgmt_functions
);
38 int ossl_prov_print_dsa(BIO
*out
, DSA
*dsa
, enum dsa_print_type type
)
40 const char *type_label
= NULL
;
41 const BIGNUM
*priv_key
= NULL
, *pub_key
= NULL
;
42 const BIGNUM
*p
= NULL
, *q
= NULL
, *g
= NULL
;
47 type_label
= "Private-Key";
50 type_label
= "Public-Key";
52 case dsa_print_params
:
53 type_label
= "DSA-Parameters";
57 if (type
== dsa_print_priv
) {
58 priv_key
= DSA_get0_priv_key(dsa
);
63 if (type
== dsa_print_priv
|| type
== dsa_print_pub
) {
64 pub_key
= DSA_get0_pub_key(dsa
);
73 if (p
== NULL
|| q
== NULL
|| g
== NULL
)
76 if (ossl_prov_bio_printf(out
, "%s: (%d bit)\n", type_label
, BN_num_bits(p
))
80 && !ossl_prov_print_labeled_bignum(out
, "priv:", priv_key
))
83 && !ossl_prov_print_labeled_bignum(out
, "pub: ", pub_key
))
85 if (!ossl_prov_print_labeled_bignum(out
, "P: ", p
))
87 if (!ossl_prov_print_labeled_bignum(out
, "Q: ", q
))
89 if (!ossl_prov_print_labeled_bignum(out
, "G: ", g
))
96 ERR_raise(ERR_LIB_PROV
, ERR_R_PASSED_NULL_PARAMETER
);
100 int ossl_prov_prepare_dsa_params(const void *dsa
, int nid
,
101 void **pstr
, int *pstrtype
)
103 ASN1_STRING
*params
= ASN1_STRING_new();
105 if (params
== NULL
) {
106 ERR_raise(ERR_LIB_PROV
, ERR_R_MALLOC_FAILURE
);
110 params
->length
= i2d_DSAparams(dsa
, ¶ms
->data
);
112 if (params
->length
<= 0) {
113 ERR_raise(ERR_LIB_PROV
, ERR_R_MALLOC_FAILURE
);
114 ASN1_STRING_free(params
);
118 *pstrtype
= V_ASN1_SEQUENCE
;
123 int ossl_prov_prepare_all_dsa_params(const void *dsa
, int nid
,
124 void **pstr
, int *pstrtype
)
126 const BIGNUM
*p
= DSA_get0_p(dsa
);
127 const BIGNUM
*q
= DSA_get0_q(dsa
);
128 const BIGNUM
*g
= DSA_get0_g(dsa
);
130 if (p
!= NULL
&& q
!= NULL
&& g
!= NULL
)
131 return ossl_prov_prepare_dsa_params(dsa
, nid
, pstr
, pstrtype
);
134 *pstrtype
= V_ASN1_UNDEF
;
138 int ossl_prov_dsa_pub_to_der(const void *dsa
, unsigned char **pder
)
140 ASN1_INTEGER
*pub_key
= BN_to_ASN1_INTEGER(DSA_get0_pub_key(dsa
), NULL
);
143 if (pub_key
== NULL
) {
144 ERR_raise(ERR_LIB_PROV
, PROV_R_BN_ERROR
);
148 ret
= i2d_ASN1_INTEGER(pub_key
, pder
);
150 ASN1_STRING_clear_free(pub_key
);
154 int ossl_prov_dsa_priv_to_der(const void *dsa
, unsigned char **pder
)
156 ASN1_INTEGER
*priv_key
= BN_to_ASN1_INTEGER(DSA_get0_priv_key(dsa
), NULL
);
159 if (priv_key
== NULL
) {
160 ERR_raise(ERR_LIB_PROV
, PROV_R_BN_ERROR
);
164 ret
= i2d_ASN1_INTEGER(priv_key
, pder
);
166 ASN1_STRING_clear_free(priv_key
);