Mercurial > trustbridge

annotate common/binverify.c @ 1384:318e8c5c4f85

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Do not depend on RELEASE_BUILD for debug output this is handled by g_debug and no longer neccessary als a Macro
author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 15 Jan 2015 15:57:26 +0100
parents 948f03bb5254
children c64b6c56ce96
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>
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2 * Software engineering by Intevation GmbH
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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3 *
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
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4 * This file is Free Software under the GNU GPL (v>=2)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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5 * and comes with ABSOLUTELY NO WARRANTY!
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
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6 * See LICENSE.txt for details.
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
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7 */
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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8
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
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9 #include "binverify.h"
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10
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
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11 #include "strhelp.h"
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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12 #include "logging.h"
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13 #include "listutil.h"
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14 #ifdef RELEASE_BUILD
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Andre Heinecke <andre.heinecke@intevation.de>
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15 #include "pubkey-release.h"
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16 #else
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17 #include "pubkey-test.h"
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18 #endif
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19
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ecfd77751daf Disambiguate enumerator values and add portable wrapper.
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20 bin_verify_result
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21 verify_binary(const char *filename, size_t name_len)
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22 {
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23 if (!filename || !name_len) {
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24 bin_verify_result retval;
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25 retval.fptr = NULL;
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26 retval.result = VerifyUnknownError;
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27 retval.sig_time = 0;
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28 return retval;
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29 }
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30
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31 #ifdef WIN32
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32 return verify_binary_win(filename, name_len);
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33 #else
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34 return verify_binary_linux(filename, name_len);
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35 #endif
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36 }
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37
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f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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38 #ifdef WIN32
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39
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40 #include <polarssl/x509_crt.h>
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41
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42 #include <windows.h>
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43 #include <wincrypt.h>
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
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44 #include <wintrust.h>
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45 #include <stdio.h>
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46
629
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47
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48 /** @brief Check if the certificate @a pCCertContext is pinned
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49 *
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50 * Compares the certificate's binary data (public key and attributes)
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51 * with each other to validate that the certificate pCCertContext has
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52 * exactly the same data as the builtin public certificate.
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53 *
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54 * @param[in] pCCertContext pointer to the certificate to check
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55 *
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56 * @returns true if the certificate matches, false otherwise.
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57 */
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58 static bool
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59 check_certificate (PCCERT_CONTEXT pCCertContext)
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60 {
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61 x509_crt codesign_cert;
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62 int ret = 0;
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63 DWORD dwI = 0;
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64 bool retval = false;
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65
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66 if (pCCertContext == NULL)
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67 {
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68 ERRORPRINTF ("Invalid call to check_certificate");
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69 return false;
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70 }
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Andre Heinecke <andre.heinecke@intevation.de>
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71
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72 x509_crt_init(&codesign_cert);
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73
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74 /* Parse the pinned certificate */
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75 ret = x509_crt_parse(&codesign_cert,
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76 public_key_codesign_pem,
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77 public_key_codesign_pem_size);
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78 if (ret != 0)
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79 {
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80 ERRORPRINTF ("x509_crt_parse failed with -0x%04x\n\n", -ret);
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81 goto done;
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82 }
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83
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84 if (codesign_cert.raw.len != pCCertContext->cbCertEncoded ||
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Andre Heinecke <andre.heinecke@intevation.de>
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85 codesign_cert.raw.len <= 0)
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86 {
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87 ERRORPRINTF ("Certificate size mismatch");
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Andre Heinecke <andre.heinecke@intevation.de>
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88 goto done;
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89 }
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90
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91 /* Check that the certificate is exactly the same as the pinned one */
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92 for (dwI = 0; dwI < pCCertContext->cbCertEncoded; dwI++)
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93 {
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94 if (pCCertContext->pbCertEncoded[dwI] != codesign_cert.raw.p[dwI])
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95 {
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96 ERRORPRINTF ("Certificate content mismatch");
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97 goto done;
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98 }
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99 }
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100
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101 retval = true;
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102
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103 done:
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104 x509_crt_free(&codesign_cert);
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105 return retval;
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106 }
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107
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28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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108 time_t
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109 systemtime_to_time_t (SYSTEMTIME *systemTime)
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110
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parents: 1264
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111 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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112 LARGE_INTEGER jan1970FT = {{0}};
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113 jan1970FT.QuadPart = 116444736000000000LL; // january 1st 1970 well known value
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114 LARGE_INTEGER utcFT = {{0}};
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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115
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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116 SystemTimeToFileTime(systemTime, (FILETIME*)&utcFT);
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117
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Andre Heinecke <andre.heinecke@intevation.de>
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118 __int64 utcDosTime = (utcFT.QuadPart - jan1970FT.QuadPart)/10000000;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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119
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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120 return (time_t)utcDosTime;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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121 }
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122
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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123
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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124 time_t
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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125 get_signature_time (HCRYPTMSG hMsg)
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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126 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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127 FILETIME lft, ft;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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128 SYSTEMTIME st;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
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diff changeset
129 DWORD dwData = 0,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
130 n = 0,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
131 dwSignerInfo = 0;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
132 PCMSG_SIGNER_INFO pSignerInfo = NULL;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
133
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
134 time_t ret = -1;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
135
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
136 if (!hMsg)
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
137 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
138 return -1;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
139 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
140
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
141 // Get signer information size.
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
142 if (!CryptMsgGetParam(hMsg,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
143 CMSG_SIGNER_INFO_PARAM,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
144 0,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
145 NULL,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
146 &dwSignerInfo))
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
147 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
148 ERRORPRINTF ("Failed to get signer info size.");
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
149 return -1;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
150 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
151 pSignerInfo = xmalloc (dwSignerInfo);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
152
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
153 if (!CryptMsgGetParam(hMsg,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
154 CMSG_SIGNER_INFO_PARAM,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
155 0,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
156 (PVOID)pSignerInfo,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
157 &dwSignerInfo))
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
158 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
159 ERRORPRINTF ("Failed to get signer info.");
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
160 goto done;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
161 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
162
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
163
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
164 // Loop through authenticated attributes and find
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
165 // szOID_RSA_signingTime OID.
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
166 for (n = 0; n < pSignerInfo->AuthAttrs.cAttr; n++)
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
167 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
168 if (lstrcmpA(szOID_RSA_signingTime,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
169 pSignerInfo->AuthAttrs.rgAttr[n].pszObjId) == 0)
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
170 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
171 dwData = sizeof(ft);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
172 if (!CryptDecodeObject((X509_ASN_ENCODING | PKCS_7_ASN_ENCODING),
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
173 szOID_RSA_signingTime,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
174 pSignerInfo->AuthAttrs.rgAttr[n].rgValue[0].pbData,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
175 pSignerInfo->AuthAttrs.rgAttr[n].rgValue[0].cbData,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
176 0,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
177 (PVOID)&ft,
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
178 &dwData))
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
179 {
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
180 PRINTLASTERROR ("Failed to decode time: ");
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
181 break;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
182 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
183
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
184 // Convert to local time.
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
185 FileTimeToLocalFileTime(&ft, &lft);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
186 FileTimeToSystemTime(&lft, &st);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
187
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
188 ret = systemtime_to_time_t(&st);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
189 break;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
190 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
191 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
192
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
193 done:
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
194 xfree(pSignerInfo);
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
195
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
196 return ret;
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
197 }
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
198
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
199 bin_verify_result
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
200 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
201 {
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
202 bin_verify_result retval;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
203 WCHAR *filenameW = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
204 BOOL result = FALSE;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
205 DWORD dwEncoding = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
206 dwContentType = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
207 dwFormatType = 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
208 dwSignerInfoSize = 0;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
209 HCERTSTORE hStore = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
210 HCRYPTMSG hMsg = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
211 PCERT_INFO pSignerCert = NULL;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
212 PCCERT_CONTEXT pSignerCertContext = NULL;
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
213 FILE *fptr = NULL;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
214 size_t data_size = 0;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
215 char *data = NULL;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
216 int ret = -1;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
217 CRYPT_INTEGER_BLOB blob;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
218
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
219 retval.result = VerifyUnknownError;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
220 retval.fptr = NULL;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
221
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
222 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
223 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
224 ERRORPRINTF ("Invalid parameters\n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
225 return retval;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
226 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
227
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
228 ret = read_file(filename, &data, &data_size, MAX_VALID_BIN_SIZE, &fptr);
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
229
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
230 if (ret != 0)
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
231 {
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
232 ERRORPRINTF ("Read file failed with error: %i\n", ret);
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
233 retval.result = VerifyReadFailed;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
234 return retval;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
235 }
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
236 blob.cbData = (DWORD) data_size;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
237 blob.pbData = (PBYTE) data;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
238
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
239 result = CryptQueryObject (CERT_QUERY_OBJECT_BLOB,
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
240 &blob,
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
241 CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
242 CERT_QUERY_FORMAT_FLAG_BINARY,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
243 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
244 &dwEncoding,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
245 &dwContentType,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
246 &dwFormatType,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
247 &hStore,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
248 &hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
249 NULL);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
250
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
251 if (!result || !hMsg)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
252 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
253 PRINTLASTERROR ("Failed to query crypto object");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
254 retval.result = VerifyReadFailed;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
255 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
256 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
257
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
258 /* 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
259 if (CryptMsgGetParam(hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
260 CMSG_SIGNER_CERT_INFO_PARAM,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
261 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
262 NULL,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
263 &dwSignerInfoSize) && dwSignerInfoSize > 0)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
264 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
265 pSignerCert = xmalloc (dwSignerInfoSize);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
266 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
267 else
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
268 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
269 ERRORPRINTF ("Failed to get signer cert size.");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
270 retval.result = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
271 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
272 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
273
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
274 if (!(CryptMsgGetParam(hMsg,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
275 CMSG_SIGNER_CERT_INFO_PARAM,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
276 0,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
277 pSignerCert,
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
278 &dwSignerInfoSize)))
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
279 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
280 ERRORPRINTF ("Failed to get signer cert.");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
281 retval.result = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
282 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
283 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
284
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
285 pSignerCertContext = CertGetSubjectCertificateFromStore(
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
286 hStore,
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
287 PKCS_7_ASN_ENCODING | X509_ASN_ENCODING,
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
288 pSignerCert);
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
289
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
290 if (!pSignerCertContext)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
291 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
292 ERRORPRINTF ("Failed to find signer cert in store.");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
293 retval.result = VerifyUnknownError;
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
294 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
295 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
296
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
297 /* 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
298 if(!CryptMsgControl(hMsg,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
299 0,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
300 CMSG_CTRL_VERIFY_SIGNATURE,
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
301 pSignerCertContext->pCertInfo))
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
302 {
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
303 ERRORPRINTF ("The signature is invalid. \n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
304 retval.result = VerifyInvalidSignature;
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
305 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
306 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
307 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
308
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
309 if(check_certificate(pSignerCertContext))
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
310 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
311 DEBUGPRINTF ("Valid signature with pinned certificate.");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
312 retval.result = VerifyValid;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
313 retval.fptr = fptr;
1364
28885e8c891f (issue177) Read signature time from PKCS#7 object in selftest and binverify
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1264
diff changeset
314 retval.sig_time = get_signature_time (hMsg);
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
315 goto done;
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
316 }
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
317 else
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
318 {
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
319 ERRORPRINTF ("Certificate mismatch. \n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
320 retval.result = VerifyInvalidCertificate;
629
facb13c578f1 Add certificate pinning to verify_binary_win
Andre Heinecke <andre.heinecke@intevation.de>
parents: 591
diff changeset
321 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
322 "created with wrong certificate.");
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
323 goto done;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
324 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
325
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
326 done:
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
327 xfree(data);
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
328 xfree(filenameW);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
329 xfree(pSignerCert);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
330
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
331 if (retval.result != VerifyValid)
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
332 {
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
333 fclose(fptr);
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
334 }
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
335
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
336 if(pSignerCertContext)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
337 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
338 CertFreeCertificateContext(pSignerCertContext);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
339 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
340 if (hStore)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
341 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
342 CertCloseStore(hStore, 0);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
343 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
344 if (hMsg)
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
345 {
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
346 CryptMsgClose(hMsg);
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
347 }
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
348 return retval;
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
349 }
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
350 #else /* WIN32 */
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
351
1264
3cd8dd706aaa Add possibility to build with CLANG and document it.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1081
diff changeset
352 #ifndef __clang__
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
353 #pragma GCC diagnostic ignored "-Wconversion"
1264
3cd8dd706aaa Add possibility to build with CLANG and document it.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1081
diff changeset
354 #endif
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
355 /* 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
356 #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
357 #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
358 #include <polarssl/sha256.h>
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
359 #include <polarssl/error.h>
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
360 #include <polarssl/x509_crt.h>
1264
3cd8dd706aaa Add possibility to build with CLANG and document it.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1081
diff changeset
361 #ifndef __clang__
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
362 #pragma GCC diagnostic pop
1264
3cd8dd706aaa Add possibility to build with CLANG and document it.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1081
diff changeset
363 #endif
1369
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
364 #include <stdlib.h>
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
365
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
366 #define SIG_DT_MARKER "\r\nS_DT:"
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
367
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
368 /** This function is only intended to be used on well formatted input
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
369 * after verifification as it makes some hard assumptions what
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
370 * follows the SIG_DT_MARKER*/
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
371 time_t
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
372 get_signature_time (char *data, size_t data_size)
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
373 {
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
374 char *p = NULL,
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
375 *end = NULL,
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
376 *buf = NULL;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
377 long lSigTime = 0;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
378 size_t len = 0;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
379
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
380
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
381 /** Look for a DOS linebreak followed by an S_DT: */
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
382 size_t marker_len = strlen(SIG_DT_MARKER);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
383 for (p = data + data_size - 1; p > data; p--)
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
384 {
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
385 if (!memcmp(SIG_DT_MARKER, p, marker_len))
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
386 break;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
387 }
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
388
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
389 if (!p || p == data)
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
390 {
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
391 ERRORPRINTF ("Failed to find signature timestamp.\n");
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
392 return 0;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
393 }
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
394 p = strchr (p, ':');
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
395 end = strchr (p, '\r');
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
396 if (!end)
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
397 {
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
398 return 0;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
399 }
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
400 if (end - p <= 0)
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
401 {
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
402 // Should never happen but we check to ensure that
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
403 // the following cast is valid which makes a size_t
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
404 ERRORPRINTF ("Signature timestamp does not compute.\n");
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
405 return 0;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
406 }
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
407 len = (size_t) (end - p);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
408
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
409 buf = xstrndup (p + 1, len);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
410
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
411 lSigTime = strtol (buf, NULL, 10);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
412 xfree (buf);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
413 return (time_t) lSigTime;
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
414 }
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
415
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
416 bin_verify_result
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
417 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
418 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
419 int ret = -1;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
420 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
421 char *data = NULL,
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
422 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
423 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
424 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
425 unsigned char signature[sig_size],
905
698b6a9bd75e Fix coding style for C code
Andre Heinecke <andre.heinecke@intevation.de>
parents: 774
diff changeset
426 hash[32];
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
427 FILE *fptr = NULL;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
428
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
429 bin_verify_result retval;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
430 retval.result = VerifyUnknownError;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
431 retval.fptr = NULL;
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
432 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
433
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
434 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
435 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
436 ERRORPRINTF ("Invalid call to verify_binary_linux\n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
437 retval.result = VerifyUnknownError;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
438 return retval;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
439 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
440
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
441 ret = read_file(filename, &data, &data_size, MAX_VALID_BIN_SIZE, &fptr);
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
442
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
443 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
444 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
445 ERRORPRINTF ("Read file failed with error: %i\n", ret);
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
446 retval.result = VerifyReadFailed;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
447 return retval;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
448 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
449
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
450 /* 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
451 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
452 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
453 ERRORPRINTF ("File to small to contain a signature.\n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
454 retval.result = VerifyInvalidSignature;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
455 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
456 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
457
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
458 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
459 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
460 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
461 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
462 {
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
463 ERRORPRINTF ("Failed to find valid signature line.\n");
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
464 retval.result = VerifyInvalidSignature;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
465 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
466 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
467
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
468 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
469 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
470
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
471 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
472 (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
473
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
474 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
475 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
476 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
477 goto done;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
478 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
479
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
480 /* 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
481 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
482
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
483 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
484
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
485 /* Parse the pinned certificate */
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
486 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
487 public_key_codesign_pem,
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
488 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
489 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
490 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
491 char errbuf[1020];
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
492 polarssl_strerror(ret, errbuf, 1020);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
493 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
494 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
495 x509_crt_free(&codesign_cert);
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
496 retval.result = VerifyUnknownError;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
497 goto done;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
498 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
499
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
500 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
501 signature, sig_size);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
502
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
503 if (ret != 0)
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
504 {
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
505 char errbuf[1020];
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
506 polarssl_strerror(ret, errbuf, 1020);
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
507 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
508 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
509 x509_crt_free(&codesign_cert);
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
510 retval.result = VerifyInvalidSignature;
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
511 goto done;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
512 }
774
44fa5de02b52 (issue43) Finalize and verify binary verification for linux.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 771
diff changeset
513 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
514
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
515 retval.result = VerifyValid;
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
516 retval.fptr = fptr;
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
517
1369
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
518 /** We know know that the signature is valid we can trust the data content. */
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
519 retval.sig_time = get_signature_time (data, data_size);
948f03bb5254 Add signature time extraction for Linux and test for it in binverifytest
Andre Heinecke <andre.heinecke@intevation.de>
parents: 1364
diff changeset
520
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
521 done:
1081
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
522 if (retval.result != VerifyValid)
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
523 {
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
524 if (fptr)
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
525 {
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
526 fclose(fptr);
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
527 }
edbf5e5e88f4 (issue118) Extend verify_binary to carry an open file
Andre Heinecke <andre.heinecke@intevation.de>
parents: 905
diff changeset
528 }
771
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
529 xfree (data);
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
530 return retval;
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
531 }
2798f1869eee (issue43) Add first draft of signature verification for GNU/Linux
Andre Heinecke <andre.heinecke@intevation.de>
parents: 637
diff changeset
532
579
f4ce4eef3b38 Implement PKCS#7 embedded signature verfification for windows
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
533 #endif /* WIN32 */
http://wald.intevation.org/projects/trustbridge/