Mercurial > trustbridge
annotate common/binverify.c @ 1001:0b7bb4f68f5a
(issue89) Add Help button
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Tue, 02 Sep 2014 10:43:51 +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 */ |