Artifact [0d0e90bbfd]

Artifact 0d0e90bbfdee672c91bad1de27ef8e89c9926042:


     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
   100
   101
   102
   103
   104
   105
   106
   107
   108
   109
   110
   111
   112
   113
   114
   115
   116
   117
   118
   119
   120
   121
   122
   123
   124
   125
   126
   127
   128
   129
   130
   131
   132
   133
   134
   135
   136
   137
   138
   139
   140
   141
   142
   143
   144
   145
   146
   147
   148
   149
   150
   151
   152
   153
   154
   155
   156
   157
   158
   159
   160
   161
   162
   163
   164
   165
   166
   167
   168
   169
   170
   171
   172
   173
   174
   175
   176
   177
   178
   179
   180
   181
   182
   183
   184
   185
   186
   187
   188
   189
   190
   191
   192
   193
   194
   195
   196
   197
   198
   199
   200
   201
   202
   203
   204
   205
   206
   207
   208
   209
   210
   211
   212
   213
   214
   215
   216
   217
   218
   219
   220
   221
   222
   223
   224
   225
   226
   227
   228
   229
   230
   231
   232
   233
   234
   235
   236
   237
   238
   239
   240
   241
   242
   243
   244
   245
   246
   247
   248
   249
   250
   251
   252
   253
   254
   255
   256
   257
   258
   259
   260
   261
   262
   263
   264
   265
   266
   267
   268
   269
   270
   271
   272
   273
   274
   275
   276
   277
   278
   279
   280
   281
   282
   283
   284
   285
   286
   287
   288
   289
   290
   291
   292
   293
   294
   295
   296
   297
   298
   299
   300
   301
   302
   303
   304
   305
   306
   307
   308
   309
   310
   311
   312
   313
   314
   315
   316
   317
   318
   319
   320
   321
   322
   323
   324
   325
   326
   327
   328
   329
   330
   331
   332
   333
   334
   335
   336
   337
   338
   339
   340
   341
   342
   343
   344
   345
   346
   347
   348
   349
   350
   351
   352
   353
   354
   355
   356
   357
   358
   359
   360
   361
   362
   363
   364
   365
   366
   367
   368
   369
   370
   371
   372
   373
   374
   375
   376
   377
   378
   379
   380
   381
   382
   383
   384
   385
   386
   387
   388
   389
   390
   391
   392
   393
   394
   395
   396
   397
   398
   399
   400
   401
   402
   403
   404
   405
   406
   407
   408
   409
   410
   411
   412
   413
   414
   415
   416
   417
   418
   419
   420
   421
   422
   423
   424
   425
   426
   427
   428
   429
   430
   431
   432
   433
   434
   435
   436
   437
   438
   439
   440
   441
   442
   443
   444
   445
   446
   447
   448
   449
   450
   451
   452
   453
   454
   455
   456
   457
   458
   459
   460
   461
   462
   463
   464
   465
   466
   467
   468
   469
   470
   471
   472
   473
   474
   475
   476
   477
   478
   479
   480
   481
   482
   483
   484
   485
   486
   487
   488
   489
   490
   491
   492
   493
   494
   495
   496
   497
   498
   499
   500
   501
   502
   503
   504
   505
   506
   507
   508
   509
   510
   511
   512
   513
   514
   515
   516
   517
   518
   519
   520
   521
   522
   523
   524
   525
   526
   527
   528
   529
   530
   531
   532
   533
   534
   535
   536
   537
   538
   539
   540
   541
   542
   543
   544
   545
   546
   547
   548
   549
   550
   551
   552
   553
   554
   555
   556
   557
   558
   559
   560
   561
   562
   563
   564
   565
   566
   567
   568
   569
   570
   571
   572
   573
   574
   575
   576
   577
   578
   579
   580
   581
   582
   583
   584
   585
   586
   587
   588
   589
   590
   591
   592
   593
   594
   595
   596
   597
   598
   599
   600
   601
   602
   603
   604
   605
   606
   607
   608
   609
   610
   611
   612
   613
   614
   615
   616
   617
   618
   619
   620
   621
   622
   623
   624
   625
   626
   627
   628
   629
   630
   631
   632
   633
   634
   635
   636
   637
   638
   639
   640
   641
   642
   643
   644
   645
   646
   647
   648
   649
   650
   651
   652
   653
   654
   655
   656
   657
   658
   659
   660
   661
   662
   663
   664
   665
   666
   667
   668
   669
   670
   671
   672
   673
   674
   675
   676
   677
   678
   679
   680
   681
   682
   683
   684
   685
   686
   687
   688
   689
   690
   691
   692
   693
   694
   695
   696
   697
   698
   699
   700
   701
   702
   703
   704
   705
   706
   707
   708
   709
   710
   711
   712
   713
   714
   715
   716
   717
   718
   719
   720
   721
   722
   723
   724
   725
   726
   727
   728
   729
   730
   731
   732
   733
   734
   735
   736
   737
   738
   739
   740
   741
   742
   743
   744
   745
   746
   747
   748
   749
   750
   751
   752
   753
   754
   755
   756
   757
   758
   759
   760
   761
   762
   763
   764
   765
   766
   767
   768
   769
   770
   771
   772
   773
   774
   775
   776
   777
   778
   779
   780
   781
/*
 * CACKey SSH Agent for ChromeOS
 */

cackeySSHAgentApprovedApps = [
	"pnhechapfaindjhompbnflcldabbghjo",
	"okddffdblfhhnmhodogpojmfkjmhinfp"
];

/*
 * XXX:TODO: Expose UI for this
 */
cackeySSHAgentFeatures = {
	enabled: false,
	includeKeys: true,
	includeCerts: true,
	legacy: false
};

/*
 * Feature support checking
 */
function cackeySSHAgentGetSSHKeyTypes() {
	var types = [];

	if (cackeySSHAgentFeatures.includeKeys) {
		types.push("ssh");
	}

	if (cackeySSHAgentFeatures.includeCerts) {
		types.push("x509v3-ssh");

		if (cackeySSHAgentFeatures.legacy) {
			types.push("x509v3-sign");
		}
	}

	return(types);
}

async function cackeySSHAgentGetCertificates() {
	var certs;

	if (!cackeySSHAgentFeatures.enabled) {
		return([]);
	}

	certs = await cackeyListCertificates();

	return(certs);
}

/*
 * SSH Element Encoding/Decoding
 */
function cackeySSHAgentEncodeInt(uint32) {
	var result;

	result = [
		(uint32 >> 24) & 0xff,
		(uint32 >> 16) & 0xff,
		(uint32 >>  8) & 0xff,
		 uint32        & 0xff
	];

	return(result);
}

function cackeySSHAgentDecodeInt(input) {
	var result;

	result = 0;
	result |= (input[0] << 24);
	result |= (input[1] << 16);
	result |= (input[2] << 8);
	result |=  input[3];

	return({
		value: result,
		output: input.slice(4)
	});
}

function cackeySSHAgentEncodeBigInt(bigInt) {
	var result = [];

	switch (typeof(bigInt)) {
		case "number":
			while (bigInt) {
				result.push(bigInt & 0xff);
				bigInt = bigInt >> 8;
			}
			result.reverse();
			break;
		case "object":
			if (bigInt.toByteArray) {
				result = Array.from(new Uint8Array(bigInt.toByteArray()));
			} else {
				result = Array.from(bigInt);
			}
			break;
	}

	result = cackeySSHAgentEncodeLV(result);

	return(result);
}

function cackeySSHAgentEncodeLV(input) {
	var result;

	result = cackeySSHAgentEncodeInt(input.length);
	result = result.concat(input);

	return(result);
}

function cackeySSHAgentDecodeLV(input) {
	var result, info;

	info = cackeySSHAgentDecodeInt(input);
	if (info.value >= input.length) {
		throw(new Error("Invalid data"));
	}

	input = info.output;

	result = input.slice(0, info.value);

	return({
		value: result,
		output: input.slice(info.value)
	});
}

function cackeySSHAgentEncodeArray(input) {
	var result;

	result = cackeySSHAgentEncodeInt(input.length);
	input.forEach(function(element) {
		result = result.concat(cackeySSHAgentEncodeLV(element));
	});

	return(result);
}

function cackeySSHAgentDecodeArray(input) {
	var items, info;
	var itemCount;

	info = cackeySSHAgentDecodeInt(input);
	input = info.output;
	itemCount = info.value;

	items = [];
	while (itemCount > 0) {
		itemCount--;

		info = cackeySSHAgentDecodeLV(input);
		input = info.output;
		items.push(info.value);
	}

	return({
		value: items,
		output: input
	});
}


function cackeySSHAgentEncodeToUTF8Array(str) {
	var utf8 = [];

	if (typeof(str) === "string") {
		str = str.split("").map(function(c) {
			return(c.charCodeAt(0));
		});
	}

	for (var i = 0; i < str.length; i++) {
		var charcode = str[i];

		if (charcode < 0x80) {
			utf8.push(charcode);
		} else if (charcode < 0x800) {
			utf8.push(0xc0 | (charcode >> 6), 
			          0x80 | (charcode & 0x3f));
		} else if (charcode < 0xd800 || charcode >= 0xe000) {
			utf8.push(0xe0 | (charcode >> 12), 
			          0x80 | ((charcode >> 6) & 0x3f), 
			          0x80 | (charcode & 0x3f));
		} else {
			// surrogate pair
			i++;
			// UTF-16 encodes 0x10000-0x10FFFF by
			// subtracting 0x10000 and splitting the
			// 20 bits of 0x0-0xFFFFF into two halves
			charcode = 0x10000 + (((charcode & 0x3ff) << 10)
			           | (str[i] & 0x3ff));

			utf8.push(0xf0 | (charcode >>18), 
			          0x80 | ((charcode >> 12) & 0x3f), 
			          0x80 | ((charcode >> 6) & 0x3f), 
			          0x80 | (charcode & 0x3f));
		}
	}

	return utf8;
}

function cackeySSHAgentDecodeFromUTF8Array(inputArray) {
	var hexString;
	var output;

	hexString = cackeySSHAgentEncodeBinaryToHex(inputArray, "%");

	output = decodeURIComponent(hexString)

	return(output);
}

function cackeySSHAgentEncodeString(string) {
	var result;

	result = cackeySSHAgentEncodeLV(cackeySSHAgentEncodeToUTF8Array(string));

	return(result);
}

function cackeySSHAgentDecodeString(input) {
	var output;

	output = cackeySSHAgentDecodeLV(input);
	output.value = cackeySSHAgentDecodeFromUTF8Array(output.value);

	return(output);
}

function cackeySSHAgentEncodeBinaryToHex(binaryString, prefix) {
	var buffer;

	if (!prefix) {
		prefix = "";
	}

	switch (typeof(binaryString)) {
		case "string":
			buffer = binaryString.split("").map(function(c) {
				return(prefix + c.charCodeAt(0).toString(16).padStart(2, '0'));
			}).join("");
			break;
		default:
			buffer = [];
			new Uint8Array(binaryString).map(function(c) {
				buffer.push(prefix + c.toString(16).padStart(2, '0'));
			});
			buffer = buffer.join("");
			break;
	}

	return(buffer);
}

function cackeySSHAgentEncodeCertToKeyAndID(cert, sshKeyType) {
	var result = null, resultKey = null;
	var certObj, certBytes;
	var publicKey;

	certObj = new X509;
	if (!certObj) {
		return(result);
	}

	certBytes = Array.from(new Uint8Array(cert));

	certObj.readCertHex(cackeySSHAgentEncodeBinaryToHex(certBytes));

	publicKey = certObj.getPublicKey();

	switch (sshKeyType) {
		case "ssh":
			switch (publicKey.type) {
				case "RSA":
					resultKey = cackeySSHAgentEncodeString("ssh-rsa");
					resultKey = resultKey.concat(cackeySSHAgentEncodeBigInt(publicKey.e));
					resultKey = resultKey.concat(cackeySSHAgentEncodeBigInt(publicKey.n));
					break;
				default:
					console.log("[cackeySSH] Unsupported public key type:", sshKeyType, "/", publicKey.type, "-- ignoring.");
					break;
			}
			break;
		case "x509v3-sign":
			resultKey = certBytes;
			break;
		case "x509v3-ssh":
			switch (publicKey.type) {
				case "RSA":
					resultKey = cackeySSHAgentEncodeString("x509v3-ssh-rsa");

					/*
					 * Array of certificates
					 */
					resultKey = resultKey.concat(cackeySSHAgentEncodeArray([
						certBytes
					]));

					/*
					 * Array of OCSP responses
					 */
					resultKey = resultKey.concat(cackeySSHAgentEncodeArray([]));
					break;
				default:
					console.log("[cackeySSH] Unsupported public key type:", sshKeyType, "/", publicKey.type, "-- ignoring.");
					break;
			}
			break;
		default:
			console.log("[cackeySSH] Unsupported SSH key type:", sshKeyType, "-- ignoring.");
			break;
	}

	if (resultKey) {
		var certLabel;
		var certSAN;
		var ignoreException;

		/*
		 * Set a default label
		 */
		certLabel = certObj.getSubjectString();

		/*
		 * Try to find a better label from the certificate's
		 * Subject Alternative Name (SAN) extensions
		 */
		try {
			certSAN = certObj.getExtSubjectAltName2();
			certSAN.forEach(function(itemPair) {
				var itemType, itemValue;

				itemType = itemPair[0];
				itemValue = itemPair[1];

				if (itemType === "MAIL") {
					certLabel = itemValue;
				}
			});
		} catch (ignoreException) {
		}

		result = {
			label: certLabel,
			publicKeyType: publicKey.type,
			sshKeyType: sshKeyType,
			key: resultKey
		};
	}

	return(result);
}

function cackeySSHAgentDecodeCert(requestArray) {
	var type;
	var decodeError;
	var publicKeyType, publicKeyBlob;
	var output;

	try {
		type = cackeySSHAgentDecodeString(requestArray);
	} catch (decodeError) {
		/*
		 * x509v3-sign-rsa requests are un-prefixed :-(
		 */
		type = {}
		type.value = requestArray;
		type.output = [];
	}

	/* It might be an x509v3-sign-rsa, which is unprefixed -- try to guess */
	if (type.value[0] == 0x30) {
		type = "x509v3-sign-rsa";
	} else {
		requestArray = type.output;
		type = type.value;
	}

	switch (type) {
		case "ssh-rsa":
		case "x509v3-sign-rsa":
			publicKeyType = "RSA";
			publicKeyBlob = requestArray;
			break;
		case "x509v3-ssh-rsa":
			publicKeyType = "RSA";
			publicKeyBlob = cackeySSHAgentDecodeArray(requestArray).value[0];
			break;
	}

	output = {
		publicKeyType: publicKeyType,
		publicKeyBlob: publicKeyBlob
	};

	return(output);
}

function cackeySSHAgentCompareRequestAndKey(key1, key2) {
	var ignoredError;

	try {
		key1 = cackeySSHAgentDecodeCert(key1);
		key2 = cackeySSHAgentDecodeCert(key2);
	} catch (ignoredError) {
		return(false);
	}

	if (key1.publicKeyType !== key2.publicKeyType) {
		return(false);
	}

	if (key1.publicKeyBlob.join(",") === key2.publicKeyBlob.join(",")) {
		return(true);
	}

	return(false);
}

/*
 * Command Handlers
 */
async function cackeySSHAgentCommandRequestIdentity(request) {
	var response;
	var certs = [];
	var keys = [];

	/*
	 * Get a list of certificates
	 */
	certs = await cackeySSHAgentGetCertificates();

	/*
	 * Convert each certificate to an SSH key blob
	 */
	cackeySSHAgentGetSSHKeyTypes().forEach(function(sshKeyType) {
		certs.forEach(function(cert) {
			var key;

			key = cackeySSHAgentEncodeCertToKeyAndID(cert.certificate, sshKeyType);

			if (key) {
				keys.push(key);
			}
		});
	});

	/*
	 * Encode response
	 */
	response = [];

	response.push(cackeySSHAgentMessage.SSH_AGENT_IDENTITIES_ANSWER);
	response = response.concat(cackeySSHAgentEncodeInt(keys.length));
	keys.forEach(function(key) {
		response = response.concat(cackeySSHAgentEncodeLV(key.key));
		response = response.concat(cackeySSHAgentEncodeString(key.label));
	});

	return(response);
}

async function cackeySSHAgentCommandSignRequest(request) {
	var keyInfo, data, flags;
	var certs, certToUse, certToUseType;
	var hashMethod, signedData, signedDataHeader, signRequest;
	var decryptedData, decryptRequest;
	var operation, response;
	var flagMeaning = {
		SSH_AGENT_RSA_SHA2_256: 2,
		SSH_AGENT_RSA_SHA2_512: 4,
		SSH_AGENT_RSA_RAW:      0x40000000,
		SSH_AGENT_RSA_DECRYPT:  0x80000000
	};

	/*
	 * Default mode is signing
	 */
	operation = "sign";

	/*
	 * Strip off the command
	 */
	request = request.slice(1);

	/*
	 * Get certificate to sign using
	 */
	keyInfo = cackeySSHAgentDecodeLV(request);
	request = keyInfo.output;
	keyInfo = keyInfo.value;

	/*
	 * Get the data to sign
	 */
	data = cackeySSHAgentDecodeLV(request);
	request = data.output;
	data = data.value;

	/*
	 * Get the flags
	 */
	flags = cackeySSHAgentDecodeInt(request);
	request = flags.output;
	flags = flags.value;

	/*
	 * Find the certificate that matches the requested key
	 */
	certs = await cackeySSHAgentGetCertificates();
	certToUse = null;
	cackeySSHAgentGetSSHKeyTypes().forEach(function(sshKeyType) {
		certs.forEach(function(cert) {
			var key;

			if (certToUse) {
				return;
			}

			key = cackeySSHAgentEncodeCertToKeyAndID(cert.certificate, sshKeyType);

			if (cackeySSHAgentCompareRequestAndKey(key.key, keyInfo)) {
				certToUse = cert;
				certToUseType = key.publicKeyType;
			}
		});
	});

	/*
	 * If no certificate is found, return an error
	 */
	if (!certToUse) {
		console.info("[cackeySSH] Unable to find a certificate to match the requested key:", keyInfo);

		return(null);
	}

	/*
	 * Perform hashing of the data as specified by the flags
	 */
	switch (certToUseType) {
		case "RSA":
			if ((flags & flagMeaning.SSH_AGENT_RSA_SHA2_512) == flagMeaning.SSH_AGENT_RSA_SHA2_512) {
				hashMethod = "SHA512";
				data = await crypto.subtle.digest("SHA-512", new Uint8Array(data));
			} else if ((flags & flagMeaning.SSH_AGENT_RSA_SHA2_256) == flagMeaning.SSH_AGENT_RSA_SHA2_256) {
				hashMethod = "SHA256";
				data = await crypto.subtle.digest("SHA-256", new Uint8Array(data));
			} else if (flags == (flagMeaning.SSH_AGENT_RSA_RAW | flagMeaning.SSH_AGENT_RSA_DECRYPT)) {
				operation = "decrypt";
				data = new Uint8Array(data);
			} else if (flags == flagMeaning.SSH_AGENT_RSA_RAW) {
				hashMethod = "RAW";
				data = new Uint8Array(data);
			} else if (flags == 0) {
				hashMethod = "SHA1";
				data = await crypto.subtle.digest("SHA-1", new Uint8Array(data));
			} else {
				console.info("[cackeySSH] Sign request with flags set to", flags, "which is unsupported, failing the request.");

				return(null);
			}

			switch (hashMethod) {
				case "RAW":
					signedDataHeader = cackeySSHAgentEncodeString("rsa");
					break;
				case "SHA1":
					signedDataHeader = cackeySSHAgentEncodeString("ssh-rsa");
					break;
				case "SHA256":
					signedDataHeader = cackeySSHAgentEncodeString("rsa-sha2-256");
					break;
				case "SHA512":
					signedDataHeader = cackeySSHAgentEncodeString("rsa-sha2-512");
					break;
				default:
					console.info("[cackeySSH] Unsupported hashing method for RSA:", hashMethod, "failing the request.");

					return(null);
					break;
			}
			break;
		default:
			console.info("[cackeySSH] Unsupported public key type:", certToUseType, "failing the request.");

			return(null);
			break;
	}

	/*
	 * Sign or decrypt the data
	 */
	switch (operation) {
		case "sign":
			signRequest = {
				hash: hashMethod,
				certificate: certToUse.certificate,
				digest: new Uint8Array(data)
			};

			if (goog.DEBUG) {
				console.log("[cackeySSH] Requesting CACKey sign message:", signRequest);
			}

			signedData = await cackeySignMessage(signRequest);
			signedData = Array.from(new Uint8Array(signedData));
			break;
		case "decrypt":
			/* XXX:TODO: Incomplete ! */
			decryptRequest = {
				data: data
			}
			break;
	}

	/*
	 * Encode signature
	 */
	signedData = signedDataHeader.concat(cackeySSHAgentEncodeLV(signedData));

	/*
	 * Encode response
	 */
	response = [];

	response.push(cackeySSHAgentMessage.SSH_AGENT_SIGN_RESPONSE);
	response = response.concat(cackeySSHAgentEncodeLV(signedData));

	return(response);
}

/*
 * Session handling
 */
async function cackeySSHAgentHandleMessage(socket, request) {
	var sshRequestID, sshRequest, response, sshResponse;
	var sshHandlerError;
	var postMessageException;

	if (!request.type || request.type !== "auth-agent@openssh.com") {
		return;
	}

	if (!request.data || request.data.length < 1) {
		return;
	}

	sshRequestID = request.data[0];
	sshRequest = {};
	if (sshRequestID < cackeySSHAgentCommands.length) {
		sshRequest = cackeySSHAgentCommands[sshRequestID];
	}

	response = null;
	if (!sshRequest.name) {
		if (goog.DEBUG) {
			console.log("[cackeySSH] Unsupported request: ", request, "; from: ", socket.sender.id);
		}
	} else {
		if (goog.DEBUG) {
			console.log("[cackeySSH] Request: ", sshRequest.name, "; from: ", socket.sender.id);
		}

		try {
			response = await sshRequest.handler(request.data);
		} catch (sshHandlerError) {
			response = null;

			console.error("[cackeySSH] Request:", sshRequest.name, "(", request, ") ERROR:", sshHandlerError);
		}
	}

	if (!response) {
		response = [cackeySSHAgentMessage.SSH_AGENT_FAILURE];
	}

	sshResponse = {
		type: "auth-agent@openssh.com",
		data: response
	};

	if (goog.DEBUG) {
		console.log("[cackeySSH] Response: ", sshResponse);
	}

	try {
		socket.postMessage(sshResponse);
	} catch (postMessageException) {
		if (goog.DEBUG) {
			console.log("[cackeySSH] Failed to send response", postMessageException);
		}
	}

	return;
}

function cackeySSHAgentAcceptConnection(socket) {
	if (!socket) {
		return;
	}

	/*
	 * Only accept connections from approved apps
	 */
	if (!socket.sender || !socket.sender.id || cackeySSHAgentApprovedApps.indexOf(socket.sender.id) == -1) {
		console.log("[cackeySSH] Ignoring unapproved app: ", socket.sender);

		return;
	}

	console.log("[cackeySSH] Accepted connection from: ", socket.sender.id);
	socket.onMessage.addListener(function(request) {
		cackeySSHAgentHandleMessage(socket, request);
	});
}

function cackeySSHAgentInit() {
	chrome.runtime.onConnectExternal.addListener(cackeySSHAgentAcceptConnection);
}

function cackeySSHAgentUninit() {
	chrome.runtime.onConnectExternal.removeListener(cackeySSHAgentAcceptConnection);
}

cackeySSHAgentCommands = [
	{ /* 0: Not implemented */ },
	{ /* 1: Not implemented */ },
	{ /* 2: Not implemented */ },
	{ /* 3: Not implemented */ },
	{ /* 4: Not implemented */ },
	{ /* 5: Not implemented */ },
	{ /* 6: Not implemented */ },
	{ /* 7: Not implemented */ },
	{ /* 8: Not implemented */ },
	{ /* 9: Not implemented */ },
	{ /* 10: Not implemented */ },
	{
		name: "requestIdentities",
		handler: cackeySSHAgentCommandRequestIdentity
	},
	{ /* 12: Not implemented */ },
	{
		name: "signRequest",
		handler: cackeySSHAgentCommandSignRequest
	},
	{ /* 14: Not implemented */ },
	{ /* 15: Not implemented */ },
	{ /* 16: Not implemented */ },
	{ /* 17: Not implemented */ },
	{ /* 18: Not implemented */ },
	{ /* 19: Not implemented */ },
	{ /* 20: Not implemented */ },
	{ /* 21: Not implemented */ },
	{ /* 22: Not implemented */ },
	{ /* 23: Not implemented */ },
	{ /* 24: Not implemented */ },
	{ /* 25: Not implemented */ },
	{ /* 26: Not implemented */ },
	{ /* 27: Not implemented */ },
	{ /* 28: Not implemented */ }
];

cackeySSHAgentMessage = {
	SSH_AGENT_FAILURE: 5,
	SSH_AGENT_SUCCESS: 6,
	SSH_AGENT_EXTENSION_FAILURE: 28,
	SSH_AGENT_IDENTITIES_ANSWER: 12,
	SSH_AGENT_SIGN_RESPONSE: 14
};

cackeySSHAgentInit();