2 * Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2010 Free Software
5 * Author: Timo Schulz, Nikos Mavrogiannopoulos
7 * This file is part of GnuTLS.
9 * The GnuTLS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 /* Functions on OpenPGP key parsing
29 #include <gnutls_int.h>
30 #include <openpgp_int.h>
31 #include <gnutls_errors.h>
32 #include <gnutls_openpgp.h>
33 #include <gnutls_num.h>
36 * gnutls_openpgp_crt_verify_ring:
37 * @key: the structure that holds the key.
38 * @keyring: holds the keyring to check against
39 * @flags: unused (should be 0)
40 * @verify: will hold the certificate verification output.
42 * Verify all signatures in the key, using the given set of keys
45 * The key verification output will be put in @verify and will be one
46 * or more of the #gnutls_certificate_status_t enumerated elements
49 * %GNUTLS_CERT_INVALID: A signature on the key is invalid.
51 * %GNUTLS_CERT_REVOKED: The key has been revoked.
53 * Note that this function does not verify using any "web of trust".
54 * You may use GnuPG for that purpose, or any other external PGP
57 * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
60 gnutls_openpgp_crt_verify_ring (gnutls_openpgp_crt_t key,
61 gnutls_openpgp_keyring_t keyring,
62 unsigned int flags, unsigned int *verify)
64 uint8_t id[GNUTLS_OPENPGP_KEYID_SIZE];
71 return GNUTLS_E_NO_CERTIFICATE_FOUND;
76 rc = cdk_pk_check_sigs (key->knode, keyring->db, &status);
77 if (rc == CDK_Error_No_Key)
79 rc = GNUTLS_E_NO_CERTIFICATE_FOUND;
83 else if (rc != CDK_Success)
85 _gnutls_x509_log ("cdk_pk_check_sigs: error %d\n", rc);
86 rc = _gnutls_map_cdk_rc (rc);
90 _gnutls_x509_log ("status: %x\n", status);
92 if (status & CDK_KEY_INVALID)
93 *verify |= GNUTLS_CERT_INVALID;
94 if (status & CDK_KEY_REVOKED)
95 *verify |= GNUTLS_CERT_REVOKED;
96 if (status & CDK_KEY_NOSIGNER)
97 *verify |= GNUTLS_CERT_SIGNER_NOT_FOUND;
99 /* Check if the key is included in the ring. */
100 if (!(flags & GNUTLS_VERIFY_DO_NOT_ALLOW_SAME))
102 rc = gnutls_openpgp_crt_get_key_id (key, id);
109 rc = gnutls_openpgp_keyring_check_id (keyring, id, 0);
110 /* If it exists in the keyring don't treat it as unknown. */
111 if (rc == 0 && *verify & GNUTLS_CERT_SIGNER_NOT_FOUND)
112 *verify ^= GNUTLS_CERT_SIGNER_NOT_FOUND;
120 * gnutls_openpgp_crt_verify_self:
121 * @key: the structure that holds the key.
122 * @flags: unused (should be 0)
123 * @verify: will hold the key verification output.
125 * Verifies the self signature in the key. The key verification
126 * output will be put in @verify and will be one or more of the
127 * gnutls_certificate_status_t enumerated elements bitwise or'd.
129 * %GNUTLS_CERT_INVALID: The self signature on the key is invalid.
131 * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
134 gnutls_openpgp_crt_verify_self (gnutls_openpgp_crt_t key,
135 unsigned int flags, unsigned int *verify)
142 rc = cdk_pk_check_self_sig (key->knode, &status);
143 if (rc || status != CDK_KEY_VALID)
144 *verify |= GNUTLS_CERT_INVALID;