Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(4)

Side by Side Diff: chrome/browser/extensions/api/cast_channel/cast_auth_util_nss.cc

Issue 395333003: Extensions: Move cast_channel and hid APIs to extensions/. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 6 years, 5 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
OLDNEW
(Empty)
1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/extensions/api/cast_channel/cast_auth_util.h"
6
7 #include <cert.h>
8 #include <cryptohi.h>
9 #include <pk11pub.h>
10 #include <seccomon.h>
11 #include <string>
12
13 #include "base/logging.h"
14 #include "chrome/browser/extensions/api/cast_channel/cast_channel.pb.h"
15 #include "chrome/browser/extensions/api/cast_channel/cast_message_util.h"
16 #include "crypto/nss_util.h"
17 #include "crypto/scoped_nss_types.h"
18 #include "net/base/hash_value.h"
19 #include "net/cert/x509_certificate.h"
20
21 namespace {
22
23 // Fingerprints and public keys of the allowed / trusted ICAs.
24 static const net::SHA1HashValue kFingerprintICA1 = { {
25 0x57,0x16,0xE2,0xAD,0x73,0x2E,0xBE,0xDA,0xEB,0x18,
26 0xE8,0x47,0x15,0xA8,0xDE,0x90,0x3B,0x5E,0x2A,0xF4
27 } };
28 static const unsigned char kPublicKeyICA1[] = {
29 0x30,0x82,0x01,0x0A,0x02,0x82,0x01,0x01,0x00,0xBC,0x22,0x80,
30 0xBD,0x80,0xF6,0x3A,0x21,0x00,0x3B,0xAE,0x76,0x5E,0x35,0x7F,
31 0x3D,0xC3,0x64,0x5C,0x55,0x94,0x86,0x34,0x2F,0x05,0x87,0x28,
32 0xCD,0xF7,0x69,0x8C,0x17,0xB3,0x50,0xA7,0xB8,0x82,0xFA,0xDF,
33 0xC7,0x43,0x2D,0xD6,0x7E,0xAB,0xA0,0x6F,0xB7,0x13,0x72,0x80,
34 0xA4,0x47,0x15,0xC1,0x20,0x99,0x50,0xCD,0xEC,0x14,0x62,0x09,
35 0x5B,0xA4,0x98,0xCD,0xD2,0x41,0xB6,0x36,0x4E,0xFF,0xE8,0x2E,
36 0x32,0x30,0x4A,0x81,0xA8,0x42,0xA3,0x6C,0x9B,0x33,0x6E,0xCA,
37 0xB2,0xF5,0x53,0x66,0xE0,0x27,0x53,0x86,0x1A,0x85,0x1E,0xA7,
38 0x39,0x3F,0x4A,0x77,0x8E,0xFB,0x54,0x66,0x66,0xFB,0x58,0x54,
39 0xC0,0x5E,0x39,0xC7,0xF5,0x50,0x06,0x0B,0xE0,0x8A,0xD4,0xCE,
40 0xE1,0x6A,0x55,0x1F,0x8B,0x17,0x00,0xE6,0x69,0xA3,0x27,0xE6,
41 0x08,0x25,0x69,0x3C,0x12,0x9D,0x8D,0x05,0x2C,0xD6,0x2E,0xA2,
42 0x31,0xDE,0xB4,0x52,0x50,0xD6,0x20,0x49,0xDE,0x71,0xA0,0xF9,
43 0xAD,0x20,0x40,0x12,0xF1,0xDD,0x25,0xEB,0xD5,0xE6,0xB8,0x36,
44 0xF4,0xD6,0x8F,0x7F,0xCA,0x43,0xDC,0xD7,0x10,0x5B,0xE6,0x3F,
45 0x51,0x8A,0x85,0xB3,0xF3,0xFF,0xF6,0x03,0x2D,0xCB,0x23,0x4F,
46 0x9C,0xAD,0x18,0xE7,0x93,0x05,0x8C,0xAC,0x52,0x9A,0xF7,0x4C,
47 0xE9,0x99,0x7A,0xBE,0x6E,0x7E,0x4D,0x0A,0xE3,0xC6,0x1C,0xA9,
48 0x93,0xFA,0x3A,0xA5,0x91,0x5D,0x1C,0xBD,0x66,0xEB,0xCC,0x60,
49 0xDC,0x86,0x74,0xCA,0xCF,0xF8,0x92,0x1C,0x98,0x7D,0x57,0xFA,
50 0x61,0x47,0x9E,0xAB,0x80,0xB7,0xE4,0x48,0x80,0x2A,0x92,0xC5,
51 0x1B,0x02,0x03,0x01,0x00,0x01
52 };
53
54 static const net::SHA1HashValue kFingerprintICA2 = { {
55 0x1B,0xA2,0x9E,0xC9,0x8E,0x4E,0xB3,0x80,0xEE,0x55,
56 0xB2,0x97,0xFD,0x2E,0x2B,0x2C,0xB6,0x8E,0x0B,0x2F
57 } };
58 static const unsigned char kPublicKeyICA2[] = {
59 0x30,0x82,0x01,0x0A,0x02,0x82,0x01,0x01,0x00,0xBC,0x22,0x80,
60 0xBD,0x80,0xF6,0x3A,0x21,0x00,0x3B,0xAE,0x76,0x5E,0x35,0x7F,
61 0x3D,0xC3,0x64,0x5C,0x55,0x94,0x86,0x34,0x2F,0x05,0x87,0x28,
62 0xCD,0xF7,0x69,0x8C,0x17,0xB3,0x50,0xA7,0xB8,0x82,0xFA,0xDF,
63 0xC7,0x43,0x2D,0xD6,0x7E,0xAB,0xA0,0x6F,0xB7,0x13,0x72,0x80,
64 0xA4,0x47,0x15,0xC1,0x20,0x99,0x50,0xCD,0xEC,0x14,0x62,0x09,
65 0x5B,0xA4,0x98,0xCD,0xD2,0x41,0xB6,0x36,0x4E,0xFF,0xE8,0x2E,
66 0x32,0x30,0x4A,0x81,0xA8,0x42,0xA3,0x6C,0x9B,0x33,0x6E,0xCA,
67 0xB2,0xF5,0x53,0x66,0xE0,0x27,0x53,0x86,0x1A,0x85,0x1E,0xA7,
68 0x39,0x3F,0x4A,0x77,0x8E,0xFB,0x54,0x66,0x66,0xFB,0x58,0x54,
69 0xC0,0x5E,0x39,0xC7,0xF5,0x50,0x06,0x0B,0xE0,0x8A,0xD4,0xCE,
70 0xE1,0x6A,0x55,0x1F,0x8B,0x17,0x00,0xE6,0x69,0xA3,0x27,0xE6,
71 0x08,0x25,0x69,0x3C,0x12,0x9D,0x8D,0x05,0x2C,0xD6,0x2E,0xA2,
72 0x31,0xDE,0xB4,0x52,0x50,0xD6,0x20,0x49,0xDE,0x71,0xA0,0xF9,
73 0xAD,0x20,0x40,0x12,0xF1,0xDD,0x25,0xEB,0xD5,0xE6,0xB8,0x36,
74 0xF4,0xD6,0x8F,0x7F,0xCA,0x43,0xDC,0xD7,0x10,0x5B,0xE6,0x3F,
75 0x51,0x8A,0x85,0xB3,0xF3,0xFF,0xF6,0x03,0x2D,0xCB,0x23,0x4F,
76 0x9C,0xAD,0x18,0xE7,0x93,0x05,0x8C,0xAC,0x52,0x9A,0xF7,0x4C,
77 0xE9,0x99,0x7A,0xBE,0x6E,0x7E,0x4D,0x0A,0xE3,0xC6,0x1C,0xA9,
78 0x93,0xFA,0x3A,0xA5,0x91,0x5D,0x1C,0xBD,0x66,0xEB,0xCC,0x60,
79 0xDC,0x86,0x74,0xCA,0xCF,0xF8,0x92,0x1C,0x98,0x7D,0x57,0xFA,
80 0x61,0x47,0x9E,0xAB,0x80,0xB7,0xE4,0x48,0x80,0x2A,0x92,0xC5,
81 0x1B,0x02,0x03,0x01,0x00,0x01
82 };
83
84 static const net::SHA1HashValue kFingerprintICA3 = { {
85 0x97,0x05,0xCE,0xF6,0x3F,0xA9,0x5E,0x0F,0xE7,0x61,
86 0xFB,0x08,0x44,0x31,0xBE,0xDE,0x01,0xB8,0xFB,0xEB
87 } };
88 static const unsigned char kPublicKeyICA3[] = {
89 0x30,0x82,0x01,0x0A,0x02,0x82,0x01,0x01,0x00,0xB7,0xE8,0xC3,
90 0xE4,0x2C,0xDE,0x74,0x53,0xF2,0x49,0x95,0x6D,0xD1,0xDA,0x69,
91 0x57,0x0D,0x86,0xE5,0xED,0xB4,0xB9,0xE6,0x73,0x9F,0x6C,0xAD,
92 0x3B,0x64,0x85,0x03,0x0D,0x08,0x44,0xAF,0x18,0x69,0x82,0xAD,
93 0xA9,0x74,0x64,0x37,0x47,0xE1,0xE7,0x26,0x19,0x33,0x3C,0xE2,
94 0xD0,0xB5,0x84,0x3C,0xD7,0xAC,0x63,0xAE,0xC4,0x32,0x23,0xF6,
95 0xDC,0x14,0x10,0x4B,0x95,0x7F,0xE8,0x98,0xD7,0x7A,0x9E,0x43,
96 0x3D,0x68,0x8B,0x2A,0x70,0xF7,0x1E,0x43,0x70,0xBA,0xA5,0xA5,
97 0x93,0xAD,0x8A,0xD4,0x9F,0xAC,0x83,0x16,0xF3,0x48,0x5F,0xC5,
98 0xE0,0xA5,0x44,0xB8,0x4F,0xD9,0xD8,0x75,0x90,0x25,0x8B,0xE3,
99 0x1C,0x6C,0xDA,0x88,0xFF,0x09,0x2B,0xCA,0x1E,0x48,0xDD,0x76,
100 0x0F,0x68,0x56,0x7B,0x15,0x9D,0xCA,0x6B,0x1C,0xF7,0x48,0xC2,
101 0x89,0xC6,0x93,0x0A,0x31,0xF2,0x78,0x27,0x45,0x3D,0xF1,0x0D,
102 0x5B,0x6E,0x55,0x32,0xEF,0x49,0xA0,0xD6,0xAF,0xA6,0x30,0x91,
103 0xF2,0x21,0x2F,0xDB,0xA4,0x29,0xB9,0x9B,0x22,0xBC,0xCD,0x0B,
104 0xA6,0x8B,0xA6,0x22,0x79,0xFD,0xCF,0x95,0x93,0x96,0xB3,0x23,
105 0xC9,0xC6,0x30,0x8E,0xC0,0xE9,0x1F,0xEC,0xFB,0xF5,0x88,0xDD,
106 0x97,0x72,0x16,0x29,0x08,0xFA,0x42,0xE7,0x4F,0xCA,0xAE,0xD7,
107 0x0F,0x23,0x48,0x9B,0x82,0xA7,0x37,0x4A,0xDD,0x60,0x04,0x75,
108 0xDC,0xDE,0x09,0x98,0xD2,0x16,0x23,0x04,0x70,0x4D,0x99,0x9F,
109 0x4A,0x82,0x28,0xE6,0xBE,0x8F,0x9D,0xBF,0xA1,0x4B,0xA2,0xBA,
110 0xF5,0xB2,0x51,0x1E,0x4E,0xE7,0x80,0x9E,0x7A,0x38,0xA1,0xC7,
111 0x09,0x02,0x03,0x01,0x00,0x01
112 };
113
114 static const net::SHA1HashValue kFingerprintICA4 = { {
115 0x01,0xF5,0x28,0x56,0x33,0x80,0x9B,0x31,0xE7,0xD9,
116 0xF7,0x4E,0xAA,0xDD,0x97,0x37,0xA0,0x28,0xE7,0x24
117 } };
118 static const unsigned char kPublicKeyICA4[] = {
119 0x30,0x82,0x01,0x0A,0x02,0x82,0x01,0x01,0x00,0xB0,0x0E,0x5E,
120 0x07,0x3A,0xDF,0xA4,0x5F,0x68,0xF7,0x21,0xC7,0x64,0xDB,0xB6,
121 0x76,0xEF,0xEE,0x8B,0x93,0xF8,0xF6,0x1B,0x88,0xE1,0x93,0xB7,
122 0x17,0xF0,0x15,0x1E,0x7E,0x52,0x55,0x77,0x3C,0x02,0x8D,0x7B,
123 0x4A,0x6C,0xD3,0xBD,0xD6,0xC1,0x9C,0x72,0xC8,0xB3,0x15,0xCF,
124 0x11,0xC1,0xF5,0x46,0xC4,0xD5,0x20,0x47,0xFB,0x30,0xF4,0xE4,
125 0x61,0x0C,0x68,0xF0,0x5E,0xAB,0x37,0x8E,0x9B,0xE1,0xBC,0x81,
126 0xC3,0x70,0x8A,0x78,0xD6,0x83,0x34,0x32,0x9C,0x19,0x62,0xEB,
127 0xE4,0x9C,0xED,0xE3,0x64,0x6C,0x41,0x1D,0x9C,0xD2,0x8B,0x48,
128 0x4C,0x23,0x90,0x95,0xB3,0xE7,0x52,0xEA,0x05,0x57,0xCC,0x60,
129 0xB3,0xBA,0x14,0xE4,0xBA,0x00,0x39,0xE4,0x46,0x55,0x74,0xCE,
130 0x5A,0x8E,0x7A,0x67,0x23,0xDA,0x68,0x0A,0xFA,0xC4,0x84,0x1E,
131 0xB4,0xC5,0xA1,0xA2,0x6A,0x73,0x1F,0x6E,0xC8,0x2E,0x2F,0x9A,
132 0x9E,0xA8,0xB1,0x0E,0xFD,0x87,0xA6,0x8F,0x4D,0x3D,0x4B,0x05,
133 0xD5,0x35,0x5A,0x74,0x4D,0xBC,0x8E,0x82,0x44,0x96,0xF4,0xB5,
134 0x95,0x60,0x4E,0xA5,0xDF,0x27,0x3D,0x41,0x5C,0x07,0xA3,0xB4,
135 0x35,0x5A,0xB3,0x9E,0xF2,0x05,0x24,0xCA,0xCD,0x31,0x5A,0x0D,
136 0x26,0x4C,0xD4,0xD3,0xFD,0x50,0xE1,0x34,0xE9,0x4C,0x81,0x58,
137 0x30,0xB2,0xC7,0x7A,0xDD,0x81,0x89,0xA6,0xD4,0x3A,0x38,0x84,
138 0x03,0xB7,0x34,0x9E,0x77,0x3F,0xFF,0x78,0x07,0x5B,0x99,0xC1,
139 0xB2,0x1F,0x35,0x56,0x6E,0x3A,0x3C,0x0C,0x25,0xE1,0x57,0xF6,
140 0x8A,0x7E,0x49,0xC0,0xCC,0x83,0x11,0x35,0xE7,0x91,0x6D,0x2E,
141 0x65,0x02,0x03,0x01,0x00,0x01
142 };
143
144 // Info for trusted ICA certs.
145 struct ICACertInfo {
146 const net::SHA1HashValue* fingerprint;
147 SECItem public_key;
148 };
149
150 // List of allowed / trusted ICAs.
151 static const ICACertInfo kAllowedICAs[] = {
152 { &kFingerprintICA1,
153 { siDERCertBuffer,
154 const_cast<unsigned char*>(kPublicKeyICA1),
155 sizeof(kPublicKeyICA1) } },
156 { &kFingerprintICA2,
157 { siDERCertBuffer,
158 const_cast<unsigned char*>(kPublicKeyICA2),
159 sizeof(kPublicKeyICA2) } },
160 { &kFingerprintICA3,
161 { siDERCertBuffer,
162 const_cast<unsigned char*>(kPublicKeyICA3),
163 sizeof(kPublicKeyICA3) } },
164 { &kFingerprintICA4,
165 { siDERCertBuffer,
166 const_cast<unsigned char*>(kPublicKeyICA4),
167 sizeof(kPublicKeyICA4) } },
168 };
169
170 typedef scoped_ptr<
171 CERTCertificate,
172 crypto::NSSDestroyer<CERTCertificate, CERT_DestroyCertificate> >
173 ScopedCERTCertificate;
174
175 // Returns the index of the ICA whose fingerprint matches |fingerprint|.
176 // Returns -1, if no such ICA is found.
177 static int GetICAWithFingerprint(const net::SHA1HashValue& fingerprint) {
178 for (size_t i = 0; i < arraysize(kAllowedICAs); ++i) {
179 if (kAllowedICAs[i].fingerprint->Equals(fingerprint))
180 return static_cast<int>(i);
181 }
182 return -1;
183 }
184
185 // Parses out DeviceAuthMessage from CastMessage
186 static bool ParseAuthMessage(
187 const extensions::api::cast_channel::CastMessage& challenge_reply,
188 extensions::api::cast_channel::DeviceAuthMessage* auth_message) {
189 if (challenge_reply.payload_type() !=
190 extensions::api::cast_channel::CastMessage_PayloadType_BINARY) {
191 VLOG(1) << "Wrong payload type in challenge reply";
192 return false;
193 }
194 if (!challenge_reply.has_payload_binary()) {
195 VLOG(1) << "Payload type is binary but payload_binary field not set";
196 return false;
197 }
198 if (!auth_message->ParseFromString(challenge_reply.payload_binary())) {
199 VLOG(1) << "Cannot parse binary payload into DeviceAuthMessage";
200 return false;
201 }
202 VLOG(1) << "Auth message: " << AuthMessageToString(*auth_message);
203 if (auth_message->has_error()) {
204 VLOG(1) << "Auth message error: " << auth_message->error().error_type();
205 return false;
206 }
207 if (!auth_message->has_response()) {
208 VLOG(1) << "Auth message has no response field";
209 return false;
210 }
211 return true;
212 }
213
214 // Authenticates the given credentials:
215 // 1. |signature| verification of |data| using |certificate|.
216 // 2. |certificate| is signed by a trusted CA.
217 bool VerifyCredentials(
218 const extensions::api::cast_channel::AuthResponse& response,
219 const std::string& data) {
220 const std::string& certificate = response.client_auth_certificate();
221 const std::string& signature = response.signature();
222
223 const SECItem* trusted_ca_key_der;
224
225 // If the list of intermediates is empty then use kPublicKeyICA1 as
226 // the trusted CA (legacy case).
227 // Otherwise, use the first intermediate in the list as long as it
228 // is in the allowed list of intermediates.
229 int num_intermediates = response.intermediate_certificate_size();
230 VLOG(1) << "Response has " << num_intermediates << " intermediates";
231 if (num_intermediates <= 0) {
232 trusted_ca_key_der = &kAllowedICAs[0].public_key;
233 } else {
234 const std::string& ica = response.intermediate_certificate(0);
235 scoped_refptr<net::X509Certificate> ica_cert
236 = net::X509Certificate::CreateFromBytes(ica.data(), ica.length());
237 int index = GetICAWithFingerprint(ica_cert->fingerprint());
238 if (index == -1) {
239 VLOG(1) << "Disallowed intermdiate cert";
240 return false;
241 }
242 trusted_ca_key_der = &kAllowedICAs[index].public_key;
243 }
244
245 crypto::EnsureNSSInit();
246 SECItem der_cert;
247 der_cert.type = siDERCertBuffer;
248 // Make a copy of certificate string so it is safe to type cast.
249 der_cert.data = reinterpret_cast<unsigned char*>(const_cast<char*>(
250 certificate.data()));
251 der_cert.len = certificate.length();
252
253 // Parse into a certificate structure.
254 ScopedCERTCertificate cert(CERT_NewTempCertificate(
255 CERT_GetDefaultCertDB(), &der_cert, NULL, PR_FALSE, PR_TRUE));
256 if (!cert.get()) {
257 VLOG(1) << "Failed to parse certificate.";
258 return false;
259 }
260
261 // Check that the certificate is signed by trusted CA.
262 // NOTE: We const_cast trusted_ca_key_der since on some platforms
263 // SECKEY_ImportDERPublicKey API takes in SECItem* and not const
264 // SECItem*.
265 crypto::ScopedSECKEYPublicKey ca_public_key(
266 SECKEY_ImportDERPublicKey(
267 const_cast<SECItem*>(trusted_ca_key_der), CKK_RSA));
268 SECStatus verified = CERT_VerifySignedDataWithPublicKey(
269 &cert->signatureWrap, ca_public_key.get(), NULL);
270 if (verified != SECSuccess) {
271 VLOG(1)<< "Cert not signed by trusted CA";
272 return false;
273 }
274 VLOG(1) << "Cert signed by trusted CA";
275
276 // Verify that the |signature| matches |data|.
277 crypto::ScopedSECKEYPublicKey public_key(CERT_ExtractPublicKey(cert.get()));
278 if (!public_key.get()) {
279 VLOG(1) << "Unable to extract public key from certificate.";
280 return false;
281 }
282 SECItem signature_item;
283 signature_item.type = siBuffer;
284 signature_item.data = reinterpret_cast<unsigned char*>(
285 const_cast<char*>(signature.data()));
286 signature_item.len = signature.length();
287 verified = VFY_VerifyDataDirect(
288 reinterpret_cast<unsigned char*>(const_cast<char*>(data.data())),
289 data.size(),
290 public_key.get(),
291 &signature_item,
292 SEC_OID_PKCS1_RSA_ENCRYPTION,
293 SEC_OID_SHA1, NULL, NULL);
294
295 if (verified != SECSuccess) {
296 VLOG(1) << "Signed blobs did not match.";
297 return false;
298 }
299 VLOG(1) << "Signature verification succeeded";
300 return true;
301 }
302
303 } // namespace
304
305 namespace extensions {
306 namespace api {
307 namespace cast_channel {
308
309 bool AuthenticateChallengeReply(const CastMessage& challenge_reply,
310 const std::string& peer_cert) {
311 if (peer_cert.empty())
312 return false;
313
314 VLOG(1) << "Challenge reply: " << CastMessageToString(challenge_reply);
315 DeviceAuthMessage auth_message;
316 if (!ParseAuthMessage(challenge_reply, &auth_message))
317 return false;
318
319 const AuthResponse& response = auth_message.response();
320 return VerifyCredentials(response, peer_cert);
321 }
322
323 } // namespace cast_channel
324 } // namespace api
325 } // namespace extensions
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698