2 * Copyright 2019-2020 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 #include <openssl/x509v3.h>
12 #include <openssl/err.h>
13 #include <openssl/ess.h>
14 #include "crypto/ess.h"
16 DEFINE_STACK_OF(ESS_CERT_ID)
17 DEFINE_STACK_OF(ESS_CERT_ID_V2)
19 DEFINE_STACK_OF(GENERAL_NAME)
21 static ESS_CERT_ID *ESS_CERT_ID_new_init(X509 *cert, int issuer_needed);
22 static ESS_CERT_ID_V2 *ESS_CERT_ID_V2_new_init(const EVP_MD *hash_alg,
23 X509 *cert, int issuer_needed);
25 ESS_SIGNING_CERT *ESS_SIGNING_CERT_new_init(X509 *signcert,
26 STACK_OF(X509) *certs,
29 ESS_CERT_ID *cid = NULL;
33 if ((sc = ESS_SIGNING_CERT_new()) == NULL)
35 if (sc->cert_ids == NULL
36 && (sc->cert_ids = sk_ESS_CERT_ID_new_null()) == NULL)
39 if ((cid = ESS_CERT_ID_new_init(signcert, issuer_needed)) == NULL
40 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
42 for (i = 0; i < sk_X509_num(certs); ++i) {
43 X509 *cert = sk_X509_value(certs, i);
44 if ((cid = ESS_CERT_ID_new_init(cert, 1)) == NULL
45 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
51 ESS_SIGNING_CERT_free(sc);
52 ESS_CERT_ID_free(cid);
53 ESSerr(ESS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE);
57 static ESS_CERT_ID *ESS_CERT_ID_new_init(X509 *cert, int issuer_needed)
59 ESS_CERT_ID *cid = NULL;
60 GENERAL_NAME *name = NULL;
61 unsigned char cert_sha1[SHA_DIGEST_LENGTH];
63 /* Call for side-effect of computing hash and caching extensions */
64 X509_check_purpose(cert, -1, 0);
65 if ((cid = ESS_CERT_ID_new()) == NULL)
67 if (!X509_digest(cert, EVP_sha1(), cert_sha1, NULL))
69 if (!ASN1_OCTET_STRING_set(cid->hash, cert_sha1, SHA_DIGEST_LENGTH))
72 /* Setting the issuer/serial if requested. */
76 if (cid->issuer_serial == NULL
77 && (cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
79 if ((name = GENERAL_NAME_new()) == NULL)
81 name->type = GEN_DIRNAME;
82 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
84 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
86 name = NULL; /* Ownership is lost. */
87 ASN1_INTEGER_free(cid->issuer_serial->serial);
88 if (!(cid->issuer_serial->serial =
89 ASN1_INTEGER_dup(X509_get_serialNumber(cert))))
94 GENERAL_NAME_free(name);
95 ESS_CERT_ID_free(cid);
96 ESSerr(ESS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE);
100 ESS_SIGNING_CERT_V2 *ESS_SIGNING_CERT_V2_new_init(const EVP_MD *hash_alg,
102 STACK_OF(X509) *certs,
105 ESS_CERT_ID_V2 *cid = NULL;
106 ESS_SIGNING_CERT_V2 *sc;
109 if ((sc = ESS_SIGNING_CERT_V2_new()) == NULL)
111 if ((cid = ESS_CERT_ID_V2_new_init(hash_alg, signcert, issuer_needed)) == NULL)
113 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
117 for (i = 0; i < sk_X509_num(certs); ++i) {
118 X509 *cert = sk_X509_value(certs, i);
120 if ((cid = ESS_CERT_ID_V2_new_init(hash_alg, cert, 1)) == NULL)
122 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
129 ESS_SIGNING_CERT_V2_free(sc);
130 ESS_CERT_ID_V2_free(cid);
131 ESSerr(ESS_F_ESS_SIGNING_CERT_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
135 static ESS_CERT_ID_V2 *ESS_CERT_ID_V2_new_init(const EVP_MD *hash_alg,
136 X509 *cert, int issuer_needed)
139 GENERAL_NAME *name = NULL;
140 unsigned char hash[EVP_MAX_MD_SIZE];
141 unsigned int hash_len = sizeof(hash);
142 X509_ALGOR *alg = NULL;
144 memset(hash, 0, sizeof(hash));
146 if ((cid = ESS_CERT_ID_V2_new()) == NULL)
149 if (hash_alg != EVP_sha256()) {
150 alg = X509_ALGOR_new();
153 X509_ALGOR_set_md(alg, hash_alg);
154 if (alg->algorithm == NULL)
159 cid->hash_alg = NULL;
162 if (!X509_digest(cert, hash_alg, hash, &hash_len))
165 if (!ASN1_OCTET_STRING_set(cid->hash, hash, hash_len))
171 if ((cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
173 if ((name = GENERAL_NAME_new()) == NULL)
175 name->type = GEN_DIRNAME;
176 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
178 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
180 name = NULL; /* Ownership is lost. */
181 ASN1_INTEGER_free(cid->issuer_serial->serial);
182 cid->issuer_serial->serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
183 if (cid->issuer_serial->serial == NULL)
188 X509_ALGOR_free(alg);
189 GENERAL_NAME_free(name);
190 ESS_CERT_ID_V2_free(cid);
191 ESSerr(ESS_F_ESS_CERT_ID_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
195 ESS_SIGNING_CERT *ESS_SIGNING_CERT_get(PKCS7_SIGNER_INFO *si)
198 const unsigned char *p;
199 attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificate);
202 p = attr->value.sequence->data;
203 return d2i_ESS_SIGNING_CERT(NULL, &p, attr->value.sequence->length);
206 ESS_SIGNING_CERT_V2 *ESS_SIGNING_CERT_V2_get(PKCS7_SIGNER_INFO *si)
209 const unsigned char *p;
211 attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificateV2);
214 p = attr->value.sequence->data;
215 return d2i_ESS_SIGNING_CERT_V2(NULL, &p, attr->value.sequence->length);
218 int ESS_SIGNING_CERT_add(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc)
220 ASN1_STRING *seq = NULL;
221 unsigned char *p, *pp = NULL;
224 len = i2d_ESS_SIGNING_CERT(sc, NULL);
225 if ((pp = OPENSSL_malloc(len)) == NULL) {
226 ESSerr(ESS_F_ESS_SIGNING_CERT_ADD, ERR_R_MALLOC_FAILURE);
230 i2d_ESS_SIGNING_CERT(sc, &p);
231 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
232 ESSerr(ESS_F_ESS_SIGNING_CERT_ADD, ERR_R_MALLOC_FAILURE);
237 return PKCS7_add_signed_attribute(si,
238 NID_id_smime_aa_signingCertificate,
239 V_ASN1_SEQUENCE, seq);
241 ASN1_STRING_free(seq);
247 int ESS_SIGNING_CERT_V2_add(PKCS7_SIGNER_INFO *si,
248 ESS_SIGNING_CERT_V2 *sc)
250 ASN1_STRING *seq = NULL;
251 unsigned char *p, *pp = NULL;
252 int len = i2d_ESS_SIGNING_CERT_V2(sc, NULL);
254 if ((pp = OPENSSL_malloc(len)) == NULL) {
255 ESSerr(ESS_F_ESS_SIGNING_CERT_V2_ADD, ERR_R_MALLOC_FAILURE);
260 i2d_ESS_SIGNING_CERT_V2(sc, &p);
261 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
262 ESSerr(ESS_F_ESS_SIGNING_CERT_V2_ADD, ERR_R_MALLOC_FAILURE);
268 return PKCS7_add_signed_attribute(si,
269 NID_id_smime_aa_signingCertificateV2,
270 V_ASN1_SEQUENCE, seq);
272 ASN1_STRING_free(seq);