Mercurial > trustbridge

annotate common/binverify.c @ 1012:a80abef948fa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
(issue86) Initialize NSS db with empty pin in case it needs it.
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 02 Sep 2014 15:20:24 +0200
parents 698b6a9bd75e
children edbf5e5e88f4
rev   line source
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
2 * Software engineering by Intevation GmbH
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
3 *
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
4 * This file is Free Software under the GNU GPL (v>=2)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
5 * and comes with ABSOLUTELY NO WARRANTY!
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
6 * See LICENSE.txt for details.
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
7 */
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
8
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
9 #include "binverify.h"
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
10
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
11 #include "strhelp.h"
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
12 #include "logging.h"
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
13 #ifdef RELEASE_BUILD
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
14 #include "pubkey-release.h"
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
15 #else
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
16 #include "pubkey-test.h"
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
17 #endif
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
18
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
19 bin_verify_result
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
20 verify_binary(const char *filename, size_t name_len)
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
21 {
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
22 if (!filename || !name_len)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
23 return VerifyUnknownError;
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
24 #ifdef WIN32
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
25 return verify_binary_win(filename, name_len);
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
26 #else
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
27 return verify_binary_linux(filename, name_len);
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
28 #endif
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
29 }
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
30
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
31 #ifdef WIN32
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
32
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
33 #include <polarssl/x509_crt.h>
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
34
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
35 #include <windows.h>
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
36 #include <wincrypt.h>
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
37 #include <wintrust.h>
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
38 #include <stdio.h>
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
39
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
40
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
41 /** @brief Check if the certificate @a pCCertContext is pinned
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
42 *
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
43 * Compares the certificate's binary data (public key and attributes)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
44 * with each other to validate that the certificate pCCertContext has
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
45 * exactly the same data as the builtin public certificate.
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
46 *
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
47 * @param[in] pCCertContext pointer to the certificate to check
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
48 *
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
49 * @returns true if the certificate matches, false otherwise.
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
50 */
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
51 static bool
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
52 check_certificate (PCCERT_CONTEXT pCCertContext)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
53 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
54 x509_crt codesign_cert;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
55 int ret = 0;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
56 DWORD dwI = 0;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
57 bool retval = false;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
58
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
59 if (pCCertContext == NULL)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
60 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
61 ERRORPRINTF ("Invalid call to check_certificate");
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
62 return false;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
63 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
64
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
65 x509_crt_init(&codesign_cert);
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
66
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
67 /* Parse the pinned certificate */
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
68 ret = x509_crt_parse(&codesign_cert,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
69 public_key_codesign_pem,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
70 public_key_codesign_pem_size);
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
71 if (ret != 0)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
72 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
73 ERRORPRINTF ("x509_crt_parse failed with -0x%04x\n\n", -ret);
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
74 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
75 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
76
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
77 if (codesign_cert.raw.len != pCCertContext->cbCertEncoded ||
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
78 codesign_cert.raw.len <= 0)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
79 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
80 ERRORPRINTF ("Certificate size mismatch");
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
81 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
82 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
83
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
84 /* Check that the certificate is exactly the same as the pinned one */
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
85 for (dwI = 0; dwI < pCCertContext->cbCertEncoded; dwI++)
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
86 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
87 if (pCCertContext->pbCertEncoded[dwI] != codesign_cert.raw.p[dwI])
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
88 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
89 ERRORPRINTF ("Certificate content mismatch");
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
90 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
91 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
92 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
93
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
94 retval = true;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
95
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
96 done:
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
97 x509_crt_free(&codesign_cert);
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
98 return retval;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
99 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
100
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
101 bin_verify_result
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
102 verify_binary_win(const char *filename, size_t name_len)
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
103 {
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
104 bin_verify_result retval = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
105 WCHAR *filenameW = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
106 BOOL result = FALSE;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
107 DWORD dwEncoding = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
108 dwContentType = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
109 dwFormatType = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
110 dwSignerInfoSize = 0;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
111 HCERTSTORE hStore = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
112 HCRYPTMSG hMsg = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
113 PCERT_INFO pSignerCert = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
114 PCCERT_CONTEXT pSignerCertContext = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
115
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
116 if (!filename || name_len > MAX_PATH || strlen(filename) != name_len)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
117 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
118 ERRORPRINTF ("Invalid parameters\n");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
119 return VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
120 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
121
591
26a18e3c3db4 Cleanups and coding style.
Andre Heinecke <aheinecke@intevation.de>
parents: 590
diff changeset
122 filenameW = utf8_to_wchar(filename, name_len);
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
123
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
124 result = CryptQueryObject (CERT_QUERY_OBJECT_FILE,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
125 filenameW,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
126 CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
127 CERT_QUERY_FORMAT_FLAG_BINARY,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
128 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
129 &dwEncoding,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
130 &dwContentType,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
131 &dwFormatType,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
132 &hStore,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
133 &hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
134 NULL);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
135
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
136 if (!result || !hMsg)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
137 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
138 PRINTLASTERROR ("Failed to query crypto object");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
139 retval = VerifyReadFailed;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
140 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
141 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
142
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
143 /* Get the cert info so that we can look up the signer in the store later */
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
144 if (CryptMsgGetParam(hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
145 CMSG_SIGNER_CERT_INFO_PARAM,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
146 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
147 NULL,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
148 &dwSignerInfoSize) && dwSignerInfoSize > 0)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
149 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
150 pSignerCert = xmalloc (dwSignerInfoSize);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
151 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
152 else
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
153 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
154 ERRORPRINTF ("Failed to get signer cert size.");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
155 retval = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
156 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
157 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
158
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
159 if (!(CryptMsgGetParam(hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
160 CMSG_SIGNER_CERT_INFO_PARAM,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
161 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
162 pSignerCert,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
163 &dwSignerInfoSize)))
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
164 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
165 ERRORPRINTF ("Failed to get signer cert.");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
166 retval = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
167 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
168 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
169
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
170 pSignerCertContext = CertGetSubjectCertificateFromStore(
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
171 hStore,
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
172 PKCS_7_ASN_ENCODING | X509_ASN_ENCODING,
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
173 pSignerCert);
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
174
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
175 if (!pSignerCertContext)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
176 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
177 ERRORPRINTF ("Failed to find signer cert in store.");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
178 retval = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
179 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
180 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
181
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
182 /* Verify that the signature is actually valid */
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
183 if(!CryptMsgControl(hMsg,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
184 0,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
185 CMSG_CTRL_VERIFY_SIGNATURE,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
186 pSignerCertContext->pCertInfo))
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
187 {
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
188 ERRORPRINTF ("The signature is invalid. \n");
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
189 retval = VerifyInvalidSignature;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
190 syslog_error_printf ("Software update embedded signature is invalid.");
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
191 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
192 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
193
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
194 if(check_certificate(pSignerCertContext))
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
195 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
196 DEBUGPRINTF ("Valid signature with pinned certificate.");
586
ecfd77751daf Disambiguate enumerator values and add portable wrapper.
Andre Heinecke <aheinecke@intevation.de>
parents: 579
diff changeset
197 retval = VerifyValid;
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
198 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
199 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
200 else
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
201 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
202 ERRORPRINTF ("Certificate mismatch. \n");
637
be30d50bc4f0 Add remaining tests to check binverify functionality
Andre Heinecke <andre.heinecke@intevation.de>
parents: 629
diff changeset
203 retval = VerifyInvalidCertificate;
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
204 syslog_error_printf ("Software update embedded signature "
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
205 "created with wrong certificate.");
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
206 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
207 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
208
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
209 done:
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
210 xfree(filenameW);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
211 xfree(pSignerCert);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
212
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
213 if(pSignerCertContext)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
214 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
215 CertFreeCertificateContext(pSignerCertContext);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
216 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
217 if (hStore)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
218 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
219 CertCloseStore(hStore, 0);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
220 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
221 if (hMsg)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
222 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
223 CryptMsgClose(hMsg);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
224 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
225 return retval;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
226 }
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
227 #else /* WIN32 */
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
228
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
229 #include "listutil.h"
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
230
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
231 #pragma GCC diagnostic ignored "-Wconversion"
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
232 /* Polarssl mh.h contains a conversion which gcc warns about */
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
233 #include <polarssl/pk.h>
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
234 #include <polarssl/base64.h>
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
235 #include <polarssl/sha256.h>
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
236 #include <polarssl/error.h>
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
237 #include <polarssl/x509_crt.h>
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
238 #pragma GCC diagnostic pop
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
239
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
240 bin_verify_result
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
241 verify_binary_linux(const char *filename, size_t name_len)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
242 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
243 int ret = -1;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
244 const size_t sig_b64_size = TRUSTBRIDGE_RSA_KEY_SIZE / 8 * 4 / 3;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
245 char *data = NULL,
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
246 signature_b64[sig_b64_size + 1];
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
247 size_t data_size = 0,
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
248 sig_size = TRUSTBRIDGE_RSA_KEY_SIZE / 8;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
249 unsigned char signature[sig_size],
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
250 hash[32];
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
251
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
252 bin_verify_result retval = VerifyUnknownError;
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
253 x509_crt codesign_cert;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
254
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
255 if (strnlen(filename, name_len + 1) != name_len || name_len == 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
256 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
257 ERRORPRINTF ("Invalid call to verify_binary_linux\n");
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
258 return VerifyUnknownError;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
259 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
260
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
261 ret = read_file(filename, &data, &data_size, MAX_VALID_BIN_SIZE);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
262
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
263 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
264 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
265 ERRORPRINTF ("Read file failed with error: %i\n", ret);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
266 return VerifyReadFailed;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
267 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
268
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
269 /* Fetch the signature from the end of data */
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
270 if (data_size < sig_b64_size + 5)
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
271 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
272 ERRORPRINTF ("File to small to contain a signature.\n");
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
273 retval = VerifyInvalidSignature;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
274 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
275 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
276
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
277 if (data[data_size - sig_b64_size - 2] != ':' ||
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
278 data[data_size - sig_b64_size - 3] != 'S' ||
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
279 data[data_size - sig_b64_size - 4] != '\n'||
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
280 data[data_size - sig_b64_size - 5] != '\r')
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
281 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
282 ERRORPRINTF ("Failed to find valid signature line.\n");
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
283 retval = VerifyInvalidSignature;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
284 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
285 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
286
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
287 strncpy(signature_b64, data + (data_size - sig_b64_size - 1), sig_b64_size);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
288 signature_b64[sig_b64_size] = '\0';
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
289
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
290 ret = base64_decode(signature, &sig_size,
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
291 (unsigned char *)signature_b64, sig_b64_size);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
292
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
293 if (ret != 0 || sig_size != TRUSTBRIDGE_RSA_KEY_SIZE / 8)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
294 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
295 ERRORPRINTF ("Base 64 decode failed with error: %i\n", ret);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
296 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
297 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
298
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
299 /* Hash is calculated over the data without the signature at the end. */
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
300 sha256((unsigned char *)data, data_size - sig_b64_size - 5, hash, 0);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
301
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
302 x509_crt_init(&codesign_cert);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
303
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
304 /* Parse the pinned certificate */
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
305 ret = x509_crt_parse(&codesign_cert,
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
306 public_key_codesign_pem,
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
307 public_key_codesign_pem_size);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
308 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
309 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
310 char errbuf[1020];
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
311 polarssl_strerror(ret, errbuf, 1020);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
312 errbuf[1019] = '\0'; /* Just to be sure */
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
313 ERRORPRINTF ("x509_crt_parse failed with -0x%04x\n%s\n", -ret, errbuf);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
314 x509_crt_free(&codesign_cert);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
315 return VerifyUnknownError;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
316 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
317
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
318 ret = pk_verify(&codesign_cert.pk, POLARSSL_MD_SHA256, hash, 0,
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
319 signature, sig_size);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
320
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
321 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
322 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
323 char errbuf[1020];
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
324 polarssl_strerror(ret, errbuf, 1020);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
325 errbuf[1019] = '\0'; /* Just to be sure */
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
326 ERRORPRINTF ("pk_verify failed with -0x%04x\n %s\n", -ret, errbuf);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
327 x509_crt_free(&codesign_cert);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
328 retval = VerifyInvalidSignature;
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
329 goto done;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
330 }
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
331 x509_crt_free(&codesign_cert);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
332
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
333 retval = VerifyValid;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
334
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
335 done:
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
336 xfree (data);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
337 return retval;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
338 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
339
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
340 #endif /* WIN32 */
http://wald.intevation.org/projects/trustbridge/