1 /**
  2  *  ---------
  3  * |.##> <##.|  Open Smart Card Development Platform (www.openscdp.org)
  4  * |#       #|
  5  * |#       #|  Copyright (c) 1999-2018 CardContact Software & System Consulting
  6  * |'##> <##'|  Andreas Schwier, 32429 Minden, Germany (www.cardcontact.de)
  7  *  ---------
  8  *
  9  *  This file is part of OpenSCDP.
 10  *
 11  *  OpenSCDP is free software; you can redistribute it and/or modify
 12  *  it under the terms of the GNU General Public License version 2 as
 13  *  published by the Free Software Foundation.
 14  *
 15  *  OpenSCDP is distributed in the hope that it will be useful,
 16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 18  *  GNU General Public License for more details.
 19  *
 20  *  You should have received a copy of the GNU General Public License
 21  *  along with OpenSCDP; if not, write to the Free Software
 22  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 23  *
 24  * @fileoverview Implementation of ISO 7816-4 APDU processing
 25  */
 26 
 27 
 28 
 29 /**
 30  * Create an APDU
 31  *
 32  * <p>This constructor supports the signatures</p>
 33  * <ul>
 34  *  <li>APDU(ByteString command)</li>
 35  *  <li>APDU(Number cla, Number ins, Number p1, Number p2)</li>
 36  *  <li>APDU(Number cla, Number ins, Number p1, Number p2, data)</li>
 37  *  <li>APDU(Number cla, Number ins, Number p1, Number p2, data, Ne)</li>
 38  * </ul>
 39  * @class Class implementing support for command and response APDUs
 40  * @constructor
 41  * @param {ByteString} command the command APDU
 42  * @param {Number} cla the class byte
 43  * @param {Number} ins the instruction byte
 44  * @param {Number} p1 the first parameter
 45  * @param {Number} p2 the second parameter
 46  * @param {ByteString} data the data field (optional)
 47  * @param {Number} Ne the number of expected bytes (optional)
 48  */
 49 function APDU() {
 50 	if (arguments.length > 0) {
 51 		var arg = arguments[0];
 52 		if (arg instanceof ByteString) {
 53 			if (arguments.length != 1) {
 54 				throw new GPError("APDU", GPError.INVALID_ARGUMENTS, APDU.SW_GENERALERROR, "Only one argument of type ByteString expected");
 55 			}
 56 			this.fromByteString(arg);
 57 		} else {
 58 			if ((arguments.length < 4) || (arguments.length > 6)) {
 59 				throw new GPError("APDU", GPError.INVALID_ARGUMENTS, APDU.SW_GENERALERROR, "4 to 6 arguments expected");
 60 			}
 61 
 62 			for (var i = 0; i < 4; i++) {
 63 				if (typeof(arguments[i]) != "number") {
 64 					throw new GPError("APDU", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Argument must be of type Number");
 65 				}
 66 			}
 67 			this.cla = arguments[0];
 68 			this.ins = arguments[1];
 69 			this.p1 = arguments[2];
 70 			this.p2 = arguments[3];
 71 
 72 			var i = 4;
 73 			if (arguments.length > i) {
 74 				if (arguments[i] instanceof ByteString) {
 75 					this.cdata = arguments[i];
 76 					i++;
 77 				}
 78 			}
 79 
 80 			if (arguments.length > i) {
 81 				if (typeof(arguments[i]) != "number") {
 82 					throw new GPError("APDU", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Argument must be of type Number");
 83 				}
 84 				this.ne = arguments[i];
 85 			}
 86 		}
 87 	}
 88 	this.rapdu = null;
 89 	this.SW = APDU.SW_GENERALERROR;
 90 }
 91 
 92 exports.APDU = APDU;
 93 
 94 
 95 
 96 APDU.INS_DEACTIVATE		= 0x04;
 97 APDU.INS_VERIFY			= 0x20;
 98 APDU.INS_MANAGE_SE		= 0x22;
 99 APDU.INS_CHANGE_REFERENCE_DATA	= 0x24;
100 APDU.INS_PSO			= 0x2A;
101 APDU.INS_RESET_RETRY_COUNTER	= 0x2C;
102 APDU.INS_ACTIVATE		= 0x44;
103 APDU.INS_GENERATE_KEY_PAIR	= 0x46;
104 APDU.INS_INITIALIZE_UPDATE	= 0x50;
105 APDU.INS_EXTERNAL_AUTHENTICATE	= 0x82;
106 APDU.INS_GET_CHALLENGE		= 0x84;
107 APDU.INS_GENERAL_AUTHENTICATE	= 0x86;
108 APDU.INS_COMPUTE_DIGITAL_SIGN	= 0x9E;
109 APDU.INS_SELECT			= 0xA4;
110 APDU.INS_READBINARY		= 0xB0;
111 APDU.INS_READ_BINARY		= 0xB0;
112 APDU.INS_READ_RECORD		= 0xB2;
113 APDU.INS_VERIFY_CERTIFICATE	= 0xBE;
114 APDU.INS_UPDATE_BINARY		= 0xD6;
115 APDU.INS_TERMINATE		= 0xE6;
116 
117 APDU.SW_OK                 = 0x9000;      	/* Process completed                 */
118 
119 APDU.SW_TIMEOUT            = 0x6401;      	/* Exec error: Command timeout       */
120 
121 APDU.SW_OKMOREDATA         = 0x6100;      	/*-Process completed, more data available*/
122 APDU.SW_WARNING            = 0x6200;      	/*-Warning: NV-Ram not changed       */
123 APDU.SW_WARNING1           = 0x6201;      	/*-Warning: NV-Ram not changed 1     */
124 APDU.SW_DATAINV            = 0x6281;      	/*-Warning: Part of data corrupted   */
125 APDU.SW_EOF                = 0x6282;      	/*-Warning: End of file reached      */
126 APDU.SW_INVFILE            = 0x6283;      	/* Warning: Invalidated file         */
127 APDU.SW_INVFORMAT          = 0x6284;      	/* Warning: Invalid file control     */
128 APDU.SW_WARNINGNVCHG       = 0x6300;      	/*-Warning: NV-Ram changed           */
129 APDU.SW_WARNINGCOUNT       = 0x63C0;      	/*-Warning: Warning with counter     */
130 APDU.SW_WARNING0LEFT       = 0x63C0;      	/*-Warning: Verify fail, no try left */
131 APDU.SW_WARNING1LEFT       = 0x63C1;      	/*-Warning: Verify fail, 1 try left  */
132 APDU.SW_WARNING2LEFT       = 0x63C2;      	/*-Warning: Verify fail, 2 tries left*/
133 APDU.SW_WARNING3LEFT       = 0x63C3;      	/*-Warning: Verify fail, 3 tries left*/
134 APDU.SW_EXECERR            = 0x6400;      	/*-Exec error: NV-Ram not changed    */
135 APDU.SW_MEMERR             = 0x6501;      	/*-Exec error: Memory failure        */
136 APDU.SW_MEMERRWRITE        = 0x6581;      	/*-Exec error: Memory failure        */
137 APDU.SW_WRONGLENGTH        = 0x6700;      	/*-Checking error: Wrong length      */
138 
139 APDU.SW_CLANOTSUPPORTED    = 0x6800;      	/*-Checking error: Function in CLA byte not supported */
140 APDU.SW_LCNOTSUPPORTED     = 0x6881;      	/*-Checking error: Logical channel not supported */
141 APDU.SW_SMNOTSUPPORTED     = 0x6882;      	/*-Checking error: Secure Messaging not supported */
142 APDU.SW_LASTCMDEXPECTED    = 0x6883;      	/*-Checking error: Last command of the chain expected */
143 APDU.SW_CHAINNOTSUPPORTED  = 0x6884;      	/*-Checking error: Command chaining not supported */
144 
145 APDU.SW_COMNOTALLOWED      = 0x6900;      	/*-Checking error: Command not allowed */
146 APDU.SW_COMINCOMPATIBLE    = 0x6981;      	/*-Checking error: Command incompatible with file structure */
147 APDU.SW_SECSTATNOTSAT      = 0x6982;      	/*-Checking error: Security condition not satisfied */
148 APDU.SW_AUTHMETHLOCKED     = 0x6983;      	/*-Checking error: Authentication method locked */
149 APDU.SW_REFDATANOTUSABLE   = 0x6984;      	/*-Checking error: Reference data not usable */
150 APDU.SW_CONDOFUSENOTSAT    = 0x6985;      	/*-Checking error: Condition of use not satisfied */
151 APDU.SW_COMNOTALLOWNOEF    = 0x6986;      	/*-Checking error: Command not allowed (no current EF) */
152 APDU.SW_SMOBJMISSING       = 0x6987;      	/*-Checking error: Expected secure messaging object missing */
153 APDU.SW_INCSMDATAOBJECT    = 0x6988;      	/*-Checking error: Incorrect secure messaging data object */
154 
155 APDU.SW_INVPARA            = 0x6A00;      	/*-Checking error: Wrong parameter P1-P2 */
156 APDU.SW_INVDATA            = 0x6A80;      	/*-Checking error: Incorrect parameter in the command data field*/
157 APDU.SW_FUNCNOTSUPPORTED   = 0x6A81;      	/*-Checking error: Function not supported */
158 APDU.SW_NOAPPL             = 0x6A82;      	/*-Checking error: File not found    */
159 APDU.SW_FILENOTFOUND       = 0x6A82;      	/*-Checking error: File not found    */
160 APDU.SW_RECORDNOTFOUND     = 0x6A83;      	/*-Checking error: Record not found    */
161 APDU.SW_OUTOFMEMORY        = 0x6A84;      	/*-Checking error: Not enough memory space in the file   */
162 APDU.SW_INVLCTLV           = 0x6A85;      	/*-Checking error: Nc inconsistent with TLV structure */
163 APDU.SW_INVACC             = 0x6A85;      	/*-Checking error: Access cond. n/f  */
164 APDU.SW_INCP1P2            = 0x6A86;      	/*-Checking error: Incorrect P1-P2   */
165 APDU.SW_INVLC              = 0x6A87;      	/*-Checking error: Lc inconsistent with P1-P2 */
166 APDU.SW_RDNOTFOUND         = 0x6A88;      	/*-Checking error: Reference data not found*/
167 APDU.SW_FILEEXISTS         = 0x6A89;      	/*-Checking error: File already exists */
168 APDU.SW_DFNAMEEXISTS       = 0x6A8A;      	/*-Checking error: DF name already exists */
169 
170 APDU.SW_INVP1P2            = 0x6B00;      	/*-Checking error: Wrong parameter P1-P2 */
171 APDU.SW_INVLE              = 0x6C00;      	/*-Checking error: Invalid Le        */
172 APDU.SW_INVINS             = 0x6D00;      	/*-Checking error: Wrong instruction */
173 APDU.SW_INVCLA             = 0x6E00;      	/*-Checking error: Class not supported */
174 APDU.SW_ACNOTSATISFIED     = 0x9804;      	/* Access conditions not satisfied   */
175 APDU.SW_NOMORESTORAGE      = 0x9210;      	/* No more storage available         */
176 APDU.SW_GENERALERROR       = 0x6F00;      	/*-Checking error: No precise diagnosis */
177 
178 
179 /**
180  * Create an APDU object from the encoded form (Called internally)
181  *
182  * @param {ByteString} bs
183  */
184 APDU.prototype.fromByteString = function(bs) {
185 	if (bs.length < 4) {
186 		throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_GENERALERROR, "Command APDU must be at least 4 bytes long");
187 	}
188 	this.cla = bs.byteAt(0);
189 	this.ins = bs.byteAt(1);
190 	this.p1 = bs.byteAt(2);
191 	this.p2 = bs.byteAt(3);
192 
193 	if (bs.length > 4) {
194 		var extended = false;
195 
196 		var i = 4;
197 		var l = bs.length - i;
198 		var n = bs.byteAt(i++);
199 		l--;
200 
201 		if ((n == 0) && (l > 0)) {
202 			extended = true;
203 			if (l < 2) {
204 				throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_WRONGLENGTH, "Extended length APDU too short");
205 			}
206 			n = (bs.byteAt(i) << 8) + bs.byteAt(i + 1);
207 			i += 2;
208 			l -= 2;
209 		}
210 
211 		if (l > 0) {	// Case 3s / Case 3e / Case 4s / Case 4e
212 			if (l < n) {
213 				throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_WRONGLENGTH, "Invalid Lc in APDU");
214 			}
215 			this.cdata = bs.bytes(i, n);
216 			i += n;
217 			l -= n;
218 
219 			if (l > 0) {	// Case 4s / Case 4e
220 				n = bs.byteAt(i++);
221 				l--;
222 				if (extended) {
223 					if (l < 1) {
224 						throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_WRONGLENGTH, "Invalid Le in extended APDU");
225 					}
226 					n = (n << 8) + bs.byteAt(i++);
227 					l--;
228 				}
229 				this.ne = (extended && (n == 0) ? 65536 : n);
230 			}
231 		} else {
232 			this.ne = (extended && (n == 0) ? 65536 : n);
233 		}
234 
235 		if (l > 0) {
236 			throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_WRONGLENGTH, "Too many bytes in APDU");
237 		}
238 	}
239 }
240 
241 
242 
243 /**
244  * Get encoded command APDU
245  *
246  * @type ByteString
247  * @return the encoded command APDU
248  */
249 APDU.prototype.getCommandAPDU = function() {
250 	var bb = new ByteBuffer();
251 
252 	bb.append(this.cla);
253 	bb.append(this.ins);
254 	bb.append(this.p1);
255 	bb.append(this.p2);
256 
257 	var hasCData = (typeof(this.cdata) != "undefined");
258 	var hasNe = (typeof(this.ne) != "undefined");
259 
260 	var extended = ((hasCData && this.cdata.length > 255) ||
261 					(hasNe && this.ne > 256));
262 
263 	if (extended) {
264 		bb.append(0);
265 	}
266 
267 	if (hasCData && this.cdata.length > 0) {
268 		if (extended) {
269 			bb.append(this.cdata.length >> 8);
270 		}
271 		bb.append(this.cdata.length & 0xFF);
272 		bb.append(this.cdata);
273 	}
274 
275 	if (hasNe) {
276 		if (extended) {
277 			bb.append(this.ne >> 8);
278 		}
279 		bb.append(this.ne & 0xFF);
280 	}
281 
282 	return bb.toByteString();
283 }
284 
285 
286 
287 /**
288  * Get encoded response APDU
289  *
290  * @type ByteString
291  * @return the encoded response APDU
292  */
293 APDU.prototype.getResponseAPDU = function() {
294 	var bb = new ByteBuffer();
295 
296 	if (this.rdata) {
297 		bb.append(this.rdata);
298 	}
299 
300 	bb.append(this.SW >> 8);
301 	bb.append(this.SW & 0xFF);
302 
303 	return bb.toByteString();
304 }
305 
306 
307 
308 /**
309  * Gets the class byte
310  *
311  * @type Number
312  * @return the class byte
313  */
314 APDU.prototype.getCLA = function() {
315 	return this.cla;
316 }
317 
318 
319 
320 /**
321  * Sets the class byte, e.g. after a transformation
322  *
323  * @parameter {Number} the new CLA byte
324  */
325 APDU.prototype.setCLA = function(cla) {
326 	this.cla = cla;
327 }
328 
329 
330 
331 /**
332  * Test if command is an ISO command
333  *
334  * @type boolean
335  * @return true if command has ISO class byte
336  */
337 APDU.prototype.isISO = function() {
338 	return (this.cla & 0x80) == 0x00;
339 }
340 
341 
342 
343 /**
344  * Test if command uses extended length
345  *
346  * @type boolean
347  * @return true if APDU uses extended length
348  */
349 APDU.prototype.isExtendedLength = function() {
350 	return (((typeof(this.cdata) != "undefined") && this.cdata.length > 255) || ((typeof(this.ne) != "undefined") && (this.ne > 256)));
351 }
352 
353 
354 
355 /**
356  * Test if command chaining is indicated
357  *
358  * @type boolean
359  * @return true if chaining bit is set
360  */
361 APDU.prototype.isChained = function() {
362 	return (this.cla & 0x10) == 0x10;
363 }
364 
365 
366 
367 /**
368  * Test if command is send using secure messaging
369  *
370  * @type boolean
371  * @return true if secure messaging is indicated in CLA byte
372  */
373 APDU.prototype.isSecureMessaging = function() {
374 	return (this.cla & 0x08) == 0x08;
375 }
376 
377 
378 
379 /**
380  * Test if command is send using secure messaging
381  *
382  * @type boolean
383  * @return true if secure messaging is using an authenticated header
384  */
385 APDU.prototype.isAuthenticatedHeader = function() {
386 	return (this.cla & 0x0C) == 0x0C;
387 }
388 
389 
390 
391 /**
392  * Gets the instruction byte
393  *
394  * @type Number
395  * @return the instruction byte
396  */
397 APDU.prototype.getINS = function() {
398 	return this.ins;
399 }
400 
401 
402 
403 /**
404  * Gets the P1 byte
405  *
406  * @type Number
407  * @return the P1 byte
408  */
409 APDU.prototype.getP1 = function() {
410 	return this.p1;
411 }
412 
413 
414 
415 /**
416  * Gets the P2 byte
417  *
418  * @type Number
419  * @return the P2 byte
420  */
421 APDU.prototype.getP2 = function() {
422 	return this.p2;
423 }
424 
425 
426 
427 /**
428  * Set the command data
429  *
430  * @param {ByteString} cdata the command data
431  */
432 APDU.prototype.setCData = function(cdata) {
433 	this.cdata = cdata;
434 }
435 
436 
437 
438 /**
439  * Gets the command data
440  *
441  * @type ByteString
442  * @return the command data, if any else undefined
443  */
444 APDU.prototype.getCData = function() {
445 	return this.cdata;
446 }
447 
448 
449 
450 /**
451  * Check if APDU has command data
452  *
453  * @type boolean
454  * @return true if command APDU has data field
455  */
456 APDU.prototype.hasCData = function() {
457 	return ((typeof(this.cdata) != "undefined") && (this.cdata != null));
458 }
459 
460 
461 
462 /**
463  * Gets the command data as a list of TLV objects
464  *
465  * @type TLVList
466  * @return the command data as TLV list, if any else undefined
467  */
468 APDU.prototype.getCDataAsTLVList = function() {
469 	if (typeof(this.cdata) == "undefined") {
470 		throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_INVDATA, "No data in command APDU");
471 	}
472 
473 	try	{
474 		var a = new TLVList(this.cdata, TLV.EMV);
475 	}
476 	catch(e) {
477 		throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_INVDATA, "Invalid TLV data in command APDU");
478 	}
479 
480 	return a;
481 }
482 
483 
484 
485 /**
486  * Gets the number of expected bytes
487  *
488  * @type Number
489  * @return the number of expected bytes or undefined
490  */
491 APDU.prototype.getNe = function() {
492 	return this.ne;
493 }
494 
495 
496 
497 /**
498  * Check if APDU has Le field
499  *
500  * @type boolean
501  * @return true if command APDU has Le field
502  */
503 APDU.prototype.hasLe = function() {
504 	return typeof(this.ne) != "undefined";
505 }
506 
507 
508 
509 /**
510  * Set secure channel object to be used in wrap and unwrap methods
511  *
512  * @param {SecureChannel} secureChannel the channel
513  */
514 APDU.prototype.setSecureChannel = function(secureChannel) {
515 	this.secureChannel = secureChannel;
516 }
517 
518 
519 
520 /**
521  * Return the secure channel, if any
522  *
523  * @type SecureChannel
524  * @return the secure channel
525  */
526 APDU.prototype.getSecureChannel = function() {
527 	return this.secureChannel;
528 }
529 
530 
531 
532 /**
533  * Test if a secure channel is defined for this APDU
534  *
535  * @type boolean
536  * @return true, if secure channel is set
537  */
538 APDU.prototype.hasSecureChannel = function() {
539 	return (typeof(this.secureChannel) != "undefined") && (this.secureChannel != null);
540 }
541 
542 
543 
544 /**
545  * Wrap APDU using secure channel
546  */
547 APDU.prototype.wrap = function() {
548 	if (this.hasSecureChannel()) {
549 		this.secureChannel.wrap(this);
550 	}
551 }
552 
553 
554 
555 /**
556  * Unwrap APDU using secure channel
557  */
558 APDU.prototype.unwrap = function() {
559 	if (this.hasSecureChannel()) {
560 		this.secureChannel.unwrap(this);
561 	}
562 }
563 
564 
565 
566 /**
567  * Sets the response data field for the response APDU
568  *
569  * @param {ByteString} data the response data field
570  */
571 APDU.prototype.setRData = function(data) {
572 	if ((data.length > 256) && !this.isExtendedLength()) {
573 		throw new GPError("APDU", GPError.INVALID_DATA, APDU.SW_WRONGLENGTH, "Too many bytes in APDU");
574 	}
575 	this.rdata = data;
576 }
577 
578 
579 
580 /**
581  * Get the response data
582  *
583  * @type ByteString
584  * @return the response data
585  */
586 APDU.prototype.getRData = function() {
587 	return this.rdata;
588 }
589 
590 
591 
592 /**
593  * Check if APDU has response data
594  *
595  * @type boolean
596  * @return true if response APDU has data field
597  */
598 APDU.prototype.hasRData = function() {
599 	return ((typeof(this.rdata) != "undefined") && (this.rdata != null));
600 }
601 
602 
603 
604 /**
605  * Sets the status word for the response ADPU
606  *
607  * @param {Number} sw the status word
608  */
609 APDU.prototype.setSW = function(sw) {
610 	this.SW = sw;
611 }
612 
613 
614 
615 /**
616  * Get the status word
617  *
618  * @type Number
619  * @return the status word
620  */
621 APDU.prototype.getSW = function() {
622 	return this.SW;
623 }
624 
625 
626 
627 /**
628  * Return a human readable form of this object
629  */
630 APDU.prototype.toString = function() {
631 	return this.getCommandAPDU().toString(HEX) + " : " + this.getResponseAPDU().toString(HEX);
632 }
633 
634 
635 
636 /**
637  * Simple unit test
638  */
639 APDU.test = function() {
640 	// Case 1
641 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C);
642 	print(a);
643 	assert(!a.isExtendedLength());
644 	var b = a.getCommandAPDU();
645 	assert(b.toString(HEX) == "00A4000C");
646 	var c = new APDU(b);
647 	assert(a.toString() == c.toString());
648 
649 	// Case 2 Short
650 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, 0);
651 	print(a);
652 	assert(!a.isExtendedLength());
653 	var b = a.getCommandAPDU();
654 	assert(b.toString(HEX) == "00A4000C00");
655 	var c = new APDU(b);
656 	assert(a.toString() == c.toString());
657 
658 	// Case 2 Extended
659 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, 65536);
660 	print(a);
661 	assert(a.isExtendedLength());
662 	var b = a.getCommandAPDU();
663 	assert(b.toString(HEX) == "00A4000C000000");
664 	var c = new APDU(b);
665 	print(c);
666 	assert(a.toString() == c.toString());
667 
668 	// Case 3 Short
669 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, new ByteString("3F00", HEX));
670 	print(a);
671 	assert(!a.isExtendedLength());
672 	var b = a.getCommandAPDU();
673 	assert(b.toString(HEX) == "00A4000C023F00");
674 	var c = new APDU(b);
675 	assert(a.toString() == c.toString());
676 
677 	// Case 3 Extended
678 	var data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
679 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, new ByteString(data, HEX));
680 	print(a);
681 	assert(a.isExtendedLength());
682 	var b = a.getCommandAPDU();
683 	assert(b.toString(HEX) == "00A4000C000100" + data);
684 	var c = new APDU(b);
685 	assert(a.toString() == c.toString());
686 
687 	// Case 4 Short
688 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, new ByteString("3F00", HEX), 0);
689 	print(a);
690 	assert(!a.isExtendedLength());
691 	var b = a.getCommandAPDU();
692 	assert(b.toString(HEX) == "00A4000C023F0000");
693 	var c = new APDU(b);
694 	assert(a.toString() == c.toString());
695 
696 	// Case 4b Extended
697 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, new ByteString(data, HEX), 0);
698 	print(a);
699 	assert(a.isExtendedLength());
700 	var b = a.getCommandAPDU();
701 	assert(b.toString(HEX) == "00A4000C000100" + data + "0000");
702 	var c = new APDU(b);
703 	assert(a.toString() == c.toString());
704 
705 	// Case 4b Extended
706 	var a = new APDU(0x00, 0xA4, 0x00, 0x0C, new ByteString("3F00", HEX), 65536);
707 	print(a);
708 	assert(a.isExtendedLength());
709 	var b = a.getCommandAPDU();
710 	assert(b.toString(HEX) == "00A4000C0000023F000000");
711 	var c = new APDU(b);
712 	assert(a.toString() == c.toString());
713 }
714