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 * DH low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/dh.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_dh_new(void)
25 return ossl_prov_get_keymgmt_new(dh_keymgmt_functions
);
28 OSSL_OP_keymgmt_free_fn
*ossl_prov_get_keymgmt_dh_free(void)
30 return ossl_prov_get_keymgmt_free(dh_keymgmt_functions
);
33 OSSL_OP_keymgmt_import_fn
*ossl_prov_get_keymgmt_dh_import(void)
35 return ossl_prov_get_keymgmt_import(dh_keymgmt_functions
);
38 int ossl_prov_print_dh(BIO
*out
, DH
*dh
, enum dh_print_type type
)
40 const char *type_label
= NULL
;
41 const BIGNUM
*priv_key
= NULL
, *pub_key
= NULL
;
42 const BIGNUM
*p
= NULL
, *g
= NULL
;
47 type_label
= "DH Private-Key";
50 type_label
= "DH Public-Key";
53 type_label
= "DH Parameters";
57 if (type
== dh_print_priv
) {
58 priv_key
= DH_get0_priv_key(dh
);
63 if (type
== dh_print_priv
|| type
== dh_print_pub
) {
64 pub_key
= DH_get0_pub_key(dh
);
71 if (p
== NULL
|| g
== NULL
)
75 * TODO(3.0): add printing of:
77 * - q (label "subgroup order:")
78 * - j (label "subgroup factor:")
79 * - seed (label "seed:")
80 * - counter (label "counter:")
82 * This can happen as soon as there are DH_get0_ functions for them.
85 if (ossl_prov_bio_printf(out
, "%s: (%d bit)\n", type_label
, BN_num_bits(p
))
89 && !ossl_prov_print_labeled_bignum(out
, " private-key:", priv_key
))
92 && !ossl_prov_print_labeled_bignum(out
, " public-key:", pub_key
))
95 && !ossl_prov_print_labeled_bignum(out
, " prime:", p
))
98 && !ossl_prov_print_labeled_bignum(out
, " generator:", g
))
105 ERR_raise(ERR_LIB_PROV
, ERR_R_PASSED_NULL_PARAMETER
);
109 int ossl_prov_prepare_dh_params(const void *dh
, int nid
,
110 ASN1_STRING
**pstr
, int *pstrtype
)
112 ASN1_STRING
*params
= ASN1_STRING_new();
114 if (params
== NULL
) {
115 ERR_raise(ERR_LIB_PROV
, ERR_R_MALLOC_FAILURE
);
119 if (nid
== EVP_PKEY_DHX
)
120 params
->length
= i2d_DHxparams(dh
, ¶ms
->data
);
122 params
->length
= i2d_DHparams(dh
, ¶ms
->data
);
124 if (params
->length
<= 0) {
125 ERR_raise(ERR_LIB_PROV
, ERR_R_MALLOC_FAILURE
);
126 ASN1_STRING_free(params
);
129 params
->type
= V_ASN1_SEQUENCE
;
132 *pstrtype
= V_ASN1_SEQUENCE
;
136 int ossl_prov_dh_pub_to_der(const void *dh
, unsigned char **pder
)
138 ASN1_INTEGER
*pub_key
= BN_to_ASN1_INTEGER(DH_get0_pub_key(dh
), NULL
);
141 if (pub_key
== NULL
) {
142 ERR_raise(ERR_LIB_PROV
, PROV_R_BN_ERROR
);
146 ret
= i2d_ASN1_INTEGER(pub_key
, pder
);
148 ASN1_STRING_clear_free(pub_key
);
152 int ossl_prov_dh_priv_to_der(const void *dh
, unsigned char **pder
)
154 ASN1_INTEGER
*priv_key
= BN_to_ASN1_INTEGER(DH_get0_priv_key(dh
), NULL
);
157 if (priv_key
== NULL
) {
158 ERR_raise(ERR_LIB_PROV
, PROV_R_BN_ERROR
);
162 ret
= i2d_ASN1_INTEGER(priv_key
, pder
);
164 ASN1_STRING_clear_free(priv_key
);