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
|
/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 3, or (at your option) any later version.
*
* GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
package net.taler.wallet.kotlin.crypto
import net.taler.wallet.kotlin.Amount
import net.taler.wallet.kotlin.Base32Crockford
import net.taler.wallet.kotlin.DenominationRecord
import net.taler.wallet.kotlin.DenominationStatus.Unverified
import net.taler.wallet.kotlin.DenominationStatus.VerifiedBad
import net.taler.wallet.kotlin.Timestamp
import net.taler.wallet.kotlin.WireFee
import net.taler.wallet.kotlin.crypto.Signature.PurposeBuilder
import kotlin.random.Random
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertFalse
import kotlin.test.assertTrue
class SignatureTest {
private val crypto = CryptoFactory.getCrypto()
private val signature = Signature(crypto)
private class PurposeBuilderVector(val purposeNum: Int, val chunks: List<String>, val result: String)
@Test
fun testSignaturePurposeBuilder() {
val vectors = listOf(
PurposeBuilderVector(42, listOf("46D6FNS4VAFW0"), "000004000002M8CTCZBJ9PMZR0"),
PurposeBuilderVector(
1375883724,
listOf("7H2ENBHG1AVRD5QVKYCXKAZQQQGCSEAAZ4"),
"000007AJ098WRF24XAQ302NQGTBFQ7WSV6NZFFF0SJWMNY8"
),
PurposeBuilderVector(251873401, listOf("KVSRVCV6J7QGYR0"), "0000048F0D47K7QKHPSPD4FF1XG0"),
PurposeBuilderVector(
2126178285,
listOf("EJN927GRT1HNS0K53TBPWYB4", "QGSXW3NGHPJCVTBX3KHGW7GBC1SJWPK0", "XK7GA"),
"00000BKYQBKYTX5AJ4F1HM33BJ16A7MQDSWP9F1KVR7B13D4SQMQT7731RF0PR3K5SD61V6F0M"
),
PurposeBuilderVector(
871975602,
listOf("JC26GG7M", "D5GER58NSW3MX3AB2EA0", "HVB81PFV0YYQ2170H77TQPZTB21T314P9B1N3VSXEHZ88VEPHW"),
"00000E1KZ55B54R4D10F8TB0XGAHBKR79T6MP4WMHVB81PFV0YYQ2170H77TQPZTB21T314P9B1N3VSXEHZ88VEPHW"
),
PurposeBuilderVector(
366986877,
listOf("28", "48213TXMKY8H8EGRJ9XP00D9MHRHQG5N02W5GG0", "VR4CDW7WQ2FYQF3WBG60"),
"00000B8NVZ37T4H20G8YQD4ZJ4A3M64JFDG03AD4E4DW1D80Q1C41QG8RVRFSE4ZXEY7RQ0C"
),
PurposeBuilderVector(
1369171164,
listOf(
"SJTSKNX7W7CAP848GCESA09HQQQYQN50G1GY5AHPP12D4GMZJCXMCFPYECGEBF8",
"J70SVFRH8WN1DP7DZ60BZW0",
"275VB93D2MV6NN7V97QXC16VMX07JNCC5R3HBH1TSWTW5V72G1E66HP73ANWFXE6NG"
),
"00000SJHKFJDSK5NK7BTFRERNCG8H0RXJM0K3FFFXFAA1031WAN3DC24T919Z4SV8RZDWWS0WPYS3GCXQW8MEAGPV3PZK05ZY08WQDD4DMAKCTPMZD4YZNG4VEKM0YANHGQ0E5E47B7KBGQCWA05RRT6RWDAQHZNRTP0"
),
PurposeBuilderVector(
2115762114,
listOf("Z7A3PQ7BV5G5D1P3F2EY9KN4GKVEG95KZD50", "SZ3PA4BSWF8T22TJMDZN5877Z9DQFC67K9E0"),
"00000D3Y3FVW5YEM7DEEQPB0AT3C6Y4XWK7A917PX0JB7YTASZ3PA4BSWF8T22TJMDZN5877Z9DQFC67K9E0"
),
PurposeBuilderVector(
1382722498,
listOf("0WEEY7GRA8Q8ZWS2NRP0", "FQ5YY3ZWJ64014A0SPWMCE4B58", "G03C6M9PZ45D99G4M2HZJ"),
"00000CAJDANW41RWXWF1GMHEHZSJ5BHCFQ5YY3ZWJ64014A0SPWMCE4B5A00DGTH6VWGNN560JGA7Y8"
),
PurposeBuilderVector(
1557782497,
listOf(
"CEB9E7Q87X12R172RZ8DAHSGGS60",
"M17JXQ290P209Q7EH759PW558FYZYTEHR40J18M81W",
"B918DJVWTERCHS54S0G93DFPVK9TV383DMRJR43ZTFZBAE3CVSFG"
),
"00000MTWV7FY2RWPJWFEGFT25G2E5HYGTN3K11JCM17JXQ290P209Q7EH759PW558FYZYTEHR40J18M81XD451PBFK9V1J74MK4214DNYVED7BCD0DPK2B0GFZ9ZXD9RDKF5Y"
),
PurposeBuilderVector(1662106597, listOf("621Y24CA3ZCHJJ8"), "000004B326XYAC43W48RM7YS354G"),
PurposeBuilderVector(
393436430,
listOf(
"6WMDVK6XKGEAX152ZM4SHQ77DCRQB4RYJX0MGCZFVVK3XTG",
"8TKEY2F1PMAT396GC3E191182F34FXXR12MR7Z6WMG4S10GZX7RJG"
),
"00000HGQEDEGWDS8VQ6DV70WNT2A5Z89K3EEETSHEP9HX5T190SYZQQ67VN4D9QF17GVA5D1MK861Q0MGGM17HJ7YYW0HAC3ZKEA82CGG8FYKW98"
),
PurposeBuilderVector(
1616746709,
listOf("ZQT1F901YWFDX6XZZB6R8PSQ1QJANCPF63T8RE09HRK2XQ7EE2K0F74GERH4GQ0"),
"00000BV0BPCDBZFM2YJ03XRYVTDVZYPDGHDKE3F4NASCYC7MHGW0K3H65VEEWW560YE90XH291E0"
),
PurposeBuilderVector(
691857007,
listOf("5JT5DM7KWVW7A7P764NTG0FJDWEQTQAGB253J547GXWX93204NM0"),
"00000A197KK6YB5MAV8F7SQREMFCEC9BN00Z4VRXFNEN0P4A74A8F1VSTJ6409B8"
),
PurposeBuilderVector(
582885064,
listOf("W5P2HP14MCNSKX4CZ4FZ0BDPSX2SV7MCE45V8PF7DW9EXAGK3TC0"),
"00000A12QRFCHRBC53C298SBK7T8SY8ZY0PVDKT5KPF8RW8BPHCYEVRJXTN167MR"
),
PurposeBuilderVector(
480383332,
listOf(
"49DZJY0K1WJFDK7P86Q1R2F150S50JQR8HQW059HBG9CR615N4V82",
"D0XXQKX9BB0HVJK34TKCZJ1E2JQKF06EQVXRRD2ZKX4QGXG",
"99JY6SS2HJ1J29GS1793CGE5BKSG"
),
"00000NRWM88P88JVZ5W163S4YV6FCGDE3G4Y2A1JA15FGH3FR0AK2Q0JSGC2BA9PG5M3QPYFN5DC27EACCKADKY85RAAYDW0STZFQ31MBYFMJY3P99JY6SS2HJ1J29GS1793CGE5BKSG"
),
PurposeBuilderVector(
877078324,
listOf("RC", "K1PKX78BPGNQSSZCVRB3B6PJYR", "74"),
"000006HM8WKK9GWRDMZ9T2XM5DYEFV6Y2RTSNMQP74"
),
PurposeBuilderVector(
25488155,
listOf(
"FNG58X0W2A4HV4ZY5TKS73RGNHA8KZ3B4WWDJS2V1B27F3G6G08FNHM8NYBZ45Q8",
"NQGNDPDNW4G9AEHXB1BKXQXK84"
),
"00000G01GKNHPZB0AHT1R4M93P9ZWBN7JE7H1B2MH7Y6P9SRV5J5P2P4EY70D00GZB38HBWQY8BEHBF1AVCVBR90JMX3TP2Q7VFV6G8"
),
PurposeBuilderVector(
749389285,
listOf(
"FVD8X18A3S2KHJ7143TCEHE3K083DRBG2CA0D766NMRVHX7MSN78NSYHZSWNH9V2DM",
"1TSPZ4VBKEBKCQEB2673H2FJHCZ6M19R2691NY79A0",
"P9VW044VY2TGKNNF4ZWZ1S2ACM4VJYCWP7ZGWRKR1264ZS2CQZGSXZ775AC41X5778"
),
"00000X1CNB2YAZPTHT2GM7J5734E287MRX2W760G6VGQ04RM0TECDB9HQ3TF9KAEHBKX3ZKSB2KP4V8EPDQS6TWVJWV5VJRHHRW8KWMB7SN0AE0HJ8DFHTAGP9VW044VY2TGKNNF4ZWZ1S2ACM4VJYCWP7ZGWRKR1264ZS2CQZGSXZ775AC41X5778"
),
PurposeBuilderVector(
434249902,
listOf(
"VFERBNSH7X70",
"T5DWNBWMF3BPAGWSESKF7WGTTS3JHVKAAR3DR",
"SMCA0184DN3WE934BGFE4MCE14279NYCFF0PJDQ20JRHFZXSGXE6CP1BSMGR479HAC"
),
"00000KRSW8GAXPYXGQBK2FTET5DWNBWMF3BPAGWSESKF7WGTTS3JHVKAAR3DSK8RM02G8VA7RWJ68Q0YW98RW284EKBWRYY1D4VE415H2ZZVK1TWCSC2QK91G8EK2MR"
),
PurposeBuilderVector(
1710327887,
listOf("S64XB965NEAQQ5287XHNT126BW"),
"00000635Y644ZJC9TPJCBAWNFEA4GFV3BM24CQR"
),
PurposeBuilderVector(
1247371119,
listOf("CSXX5W59E3S03412M29J0HG0R67BW4B3X946GS2T0TVYPH9HFP9FC0M7", "931KSGS0ZJG4A79BT55G0Q4Q"),
"00000EJAB5FPYSKVTBRAJW7J0682584K41301GCEQR8P7TJ8D1J5M1NQXD2K2ZCJYR18EJ637K1J1Z508MEJQMAB01E9E"
),
PurposeBuilderVector(
2024386767,
listOf(
"R2WZA0FKD57D418NB2KK84PJKHAVPEC6219X2KQJ78JFB76F0R",
"CNYD5TAC7Y3N58CN6VK9F7NBKD2NJJK3VJ91CZKBFZWDVVZB28",
"G7WQJVXXYT4JHA1NK22RXS45BM0W5H5JD7JNX3PWD2WZ27Y5Y1FB4"
),
"00000SVRN6RCZG5SYM0Z6TAET82HAP576G9D572NQCWRC42KT57F4EH4YPECY1K5FK9EJK1ZGX9A359PWTBSXAWV8NCMMRYWJ8B7WTVZZ3EYZTRJG7WQJVXXYT4JHA1NK22RXS45BM0W5H5JD7JNX3PWD2WZ27Y5Y1FB4"
),
PurposeBuilderVector(1182512118, listOf("KH32THSNNZGJPC0"), "000004A6FESZD7265N3KBBZ15CR0"),
PurposeBuilderVector(
2029783771,
listOf("N7468QH02K49BTD16S1F6FB4NKNXB0Q410"),
"000007BRZG5DQAE8CHF20568JQMT2DJ2YCYP9B7BTP1E820"
),
PurposeBuilderVector(
1111140596,
listOf("6BN45PA2RCVRR8PJ6XKRJ9ZER2BR3MY9RQ290FADAG"),
"000008J27AMF8CQA8BCM5GSQHGHD4DV7H4KYXG4QG79WKHE4J0YMTN0"
)
)
for (v in vectors) {
val builder = PurposeBuilder(v.purposeNum)
for (chunk in v.chunks) builder.put(Base32Crockford.decode(chunk))
val encodedBytes = Base32Crockford.encode(builder.build())
assertEquals(v.result, encodedBytes)
}
}
private class PaymentSignatureVector(val publicKey: String, val hash: String, val signature: String)
@Test
fun testVerifyPaymentSignature() {
val vectors = listOf(
PaymentSignatureVector(
"8GSJZ649T2PXMKZC01Y4ANNBE7MF14QVK9SQEC4E46ZHKCVG8AS0",
"CW96WR74JS8T53EC8GKSGD49QKH4ZNFTZXDAWMMV5GJ1E4BM6B8GPN5NVHDJ8ZVXNCW7Q4WBYCV61HCA3PZC2YJD850DT29RHHN7ESR",
"JSNG99MX5W4AS7AEA8D4ADCHYTHFER0GX1N064E1XX48N513AXAEHDTG8ZT7ANWQK5HGCAXGEWN7TCBTYVG3RDPBTAS5HEP608KQ40R"
),
PaymentSignatureVector(
"6WC3MPYM5XKPKRA2Z6SYB81CPFV3E7EC6S2GVE095X8XH63QTZCG",
"Z6H76JXPJFP3JBGSF54XBF0BVXDJ0CJBK4YT9GVR1AT916ZD57KP53YZN5G67A4YN95WGMZKQW7744483P5JDF06B6S7TMK195QGP20",
"T2Y4KJJPZ0F2DMNF5S81V042T20VHB5VRXQYX4RF8KRH6H2Z4JRBD05CCDJ6C625MHM5FQET00RDX2NF5QX63S9YDXEP0710VBYHY10"
),
PaymentSignatureVector(
"2X3PSPT7D6TEM97R98C0DHZREFVAVA3XTH11D5A2Z2K7GBKQ7AEG",
"JSNG99MX5W4AS7AEA8D4ADCHYTHFER0GX1N064E1XX48N513AXAEHDTG8ZT7ANWQK5HGCAXGEWN7TCBTYVG3RDPBTAS5HEP608KQ40R",
"W0783H1KZ6GX58T5ZEH5VYMTXP7P7EA3KBKQ4Y8CN8M20GY8RNA4RX1AZG6TQ70NR4XG4EZ9D606P4RDAARD2SXTKA90BJMN9VEAC00"
)
)
for (v in vectors) {
// verification succeeds as expected
assertTrue(signature.verifyPayment(v.signature, v.hash, v.publicKey))
// verification fails which different signature
val size = Base32Crockford.calculateDecodedDataLength(v.signature.length)
val sig = Base32Crockford.encode(Random.nextBytes(size))
assertFalse(signature.verifyPayment(sig, v.hash, v.publicKey))
// verification fails which different hash
val hash = Base32Crockford.encode(Random.nextBytes(64))
assertFalse(signature.verifyPayment(v.signature, hash, v.publicKey))
// verification fails which different public key
val publicKey = Base32Crockford.encode(Random.nextBytes(32))
assertFalse(signature.verifyPayment(v.signature, v.hash, publicKey))
}
}
private class WireFeeSignatureVector(val wireFee: WireFee, val masterPub: String)
@Test
fun testVerifyWireFeeSignature() {
val type = "x-taler-bank"
val vectors = listOf(
WireFeeSignatureVector(
WireFee(
wireFee = Amount("TESTKUDOS", 0, 1000000),
closingFee = Amount("TESTKUDOS", 0, 1000000),
startStamp = Timestamp(1609470000000),
endStamp = Timestamp(1641006000000),
signature = "C77EZ56ZT4ACNPGP3PX881S42413N37NJVTRPNMM9BWRVGQBK2C157HHRF61RMYPAWW6QVWV5RVKEVBD3XAVJFXAEBM2HPNS5AMPY18"
), "Y8JGNCPMM7XTF44FT7V1JRNNJQ6F4R7DZPXAKYYCJZJVEX2C45QG"
),
WireFeeSignatureVector(
WireFee(
wireFee = Amount("TESTKUDOS", 0, 1000000),
closingFee = Amount("TESTKUDOS", 0, 1000000),
startStamp = Timestamp(1577847600000),
endStamp = Timestamp(1609470000000),
signature = "4F87Z12WQM7JXEKPRPGFZVGCZPNN6Q9RVP2NA0PZ57CYQP4QXV38EQW59X3K5WAQN82BX95X57775ZJGA5EB3VA5GV9S3JBA3RGX41G"
), "0BJ4SX13W4Q64QDDSRBVTYSWT8C0X2HVB61QYSZM1B1W9JVCE0C0"
),
WireFeeSignatureVector(
WireFee(
wireFee = Amount("TESTKUDOS", 0, 1000000),
closingFee = Amount("TESTKUDOS", 0, 1000000),
startStamp = Timestamp(1672542000000),
endStamp = Timestamp(1704078000000),
signature = "9YWES9YPR2W5ACCYE4ZE4S3PE62CVX01AXXSC9KT9PZ6B52D5GSBP4DG95Y024EDE5HFGP6FEZVPKQM8PA6J9WD2NXW3QBA34MEV61R"
), "FWPD4E312RB8XZ22FGHCZGV2YPT7AX02XVRZEC7F53QKZJHY7H50"
)
)
for (v in vectors) {
// verification succeeds as expected
assertTrue(signature.verifyWireFee(type, v.wireFee, v.masterPub))
// different type fails verification
assertFalse(signature.verifyWireFee("foo", v.wireFee, v.masterPub))
// different WireFee wireFee fails verification
var wireFee = v.wireFee.copy(wireFee = Amount("TESTKUDOS", 0, 100))
assertFalse(signature.verifyWireFee(type, wireFee, v.masterPub))
// different WireFee closingFee fails verification
wireFee = v.wireFee.copy(closingFee = Amount("TESTKUDOS", 0, 100))
assertFalse(signature.verifyWireFee(type, wireFee, v.masterPub))
// different WireFee startStamp fails verification
wireFee = v.wireFee.copy(startStamp = Timestamp(v.wireFee.startStamp.ms + 1000))
assertFalse(signature.verifyWireFee(type, wireFee, v.masterPub))
// different WireFee endStamp fails verification
wireFee = v.wireFee.copy(endStamp = Timestamp(v.wireFee.endStamp.ms + 1000))
assertFalse(signature.verifyWireFee(type, wireFee, v.masterPub))
// different WireFee signature fails verification
val size = Base32Crockford.calculateDecodedDataLength(v.wireFee.signature.length)
wireFee = v.wireFee.copy(signature = Base32Crockford.encode(Random.nextBytes(size)))
assertFalse(signature.verifyWireFee(type, wireFee, v.masterPub))
// startStamp changes below one second don't affect verification
wireFee = v.wireFee.copy(startStamp = Timestamp(v.wireFee.startStamp.ms + 999))
assertTrue(signature.verifyWireFee(type, wireFee, v.masterPub))
// startStamp changes below one second don't affect verification
wireFee = v.wireFee.copy(endStamp = Timestamp(v.wireFee.endStamp.ms + 999))
assertTrue(signature.verifyWireFee(type, wireFee, v.masterPub))
// different masterPub fails verification
val masterPub = Base32Crockford.encode(Random.nextBytes(32))
assertFalse(signature.verifyWireFee(type, v.wireFee, masterPub))
}
}
private class DenominationRecordSignatureVector(val denominationRecord: DenominationRecord, val masterPub: String)
@Test
fun testVerifyDenominationRecordSignature() {
val vectors = listOf(
DenominationRecordSignatureVector(
DenominationRecord(
value = Amount("TESTKUDOS", 4, 0),
denomPub = "020000XX26WN5X7ECKERVGBWTFM3KJ7AT0N8T7RQB7W7G4Q5K0W1BT8QFQBMMTR925TC6RX4QGVVVXH2ZMJVWDRR58BRXNDCFBZTH7RNS1KVWZQGEWME1D6QX79R0V6V9S0NC9H8YP0W6MJD7YSV5VQZWCR1JXRTSS0HPHDV4V6AVX34TSMHGRDQXZYVTEBGVWNF8TNR2P5296TCZR0G2001",
denomPubHash = "MY54RXQ1WTZPFD3VZ4QJH6RHFPTYE78Y4DQ3GANTWK2Z0SQ99AK90K5H0P419EY4QWV6S4Q6QG52HYFCVRCPEQNG22RM3E7XW2YFJ9R",
feeWithdraw = Amount("TESTKUDOS", 0, 3000000),
feeDeposit = Amount("TESTKUDOS", 0, 3000000),
feeRefresh = Amount("TESTKUDOS", 0, 4000000),
feeRefund = Amount("TESTKUDOS", 0, 2000000),
stampStart = Timestamp(1593449948000),
stampExpireWithdraw = Timestamp(1594054748000),
stampExpireLegal = Timestamp(1688057948000),
stampExpireDeposit = Timestamp(1656521948000),
masterSig = "2PEF4EHTKE2R89KHQBZ6NAQW34YEMAP044DTJXJ9TFX224YW07BB2X1VHEYH425N2RNDZS9XFEAQK54GV6Q6CTNSE1Z038TZ4V3MM1R",
status = Unverified, isOffered = false, isRevoked = false, exchangeBaseUrl = "example.org"
),
"C5K3YXPHSDVYPCB79D5AC4FYCKQ9D0DN3N3MBA5D54BG42SX0ZRG"
),
DenominationRecordSignatureVector(
DenominationRecord(
value = Amount("TESTKUDOS", 0, 10000000),
denomPub = "020000XWWS2DFXM1G8YR6NXVF07R0DH7GRE1J7ZC2YENN7Q60ZHX9S7FEVQDBFP1041DN0GFASZR6A7RSJ3EYRV1YD5ACAZRDQNH5P5KEBTSK5XA76YYWTW5VA7N1V1VRVF0CF7VZ8GSJNQ91FSJGNKGR82DB7H82TPAGMR1B5DG5SY2WP3NB5YJD90H64E09C0YC8FCCWRGC09HFNPG2001",
denomPubHash = "J73HZJTR76GRZKBEKQC4X289056V5RMY4JS932XM8BAENQ83YAF9W2WYKRBN87TN8ENXP61JC7HMC7PYK9MZ8S289FCD07EM95AJGMR",
feeWithdraw = Amount("TESTKUDOS", 0, 1000000),
feeDeposit = Amount("TESTKUDOS", 0, 1000000),
feeRefresh = Amount("TESTKUDOS", 0, 3000000),
feeRefund = Amount("TESTKUDOS", 0, 1000000),
stampStart = Timestamp(1593450307000),
stampExpireWithdraw = Timestamp(1594055107000),
stampExpireLegal = Timestamp(1688058307000),
stampExpireDeposit = Timestamp(1656522307000),
masterSig = "HPBAY19C1B5H3FAYWKRQFS8VC693658SNSK3BB304BNAG950BS881GMVPVN0YBG67K9J9E4A9BFN7VAQEY1D5G6YAGVPFQWX0GRQ62G",
status = Unverified, isOffered = false, isRevoked = false, exchangeBaseUrl = "example.org"
),
"NF8G14QFVWJSQPNFC3M2JKNMGJESS8ZWZX9V43PG40YXWRWA88VG"
)
)
for (v in vectors) {
// verification succeeds as expected
assertTrue(signature.verifyDenominationRecord(v.denominationRecord, v.masterPub))
// different masterPub fails verification
val masterPub = Base32Crockford.encode(Random.nextBytes(32))
assertFalse(signature.verifyDenominationRecord(v.denominationRecord, masterPub))
// different value fails verification
val value = v.denominationRecord.value + Amount.min(v.denominationRecord.value.currency)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(value = value),
v.masterPub
)
)
// different denomPubHash fails verification
val calculatedDenomPubHash = crypto.sha512(Base32Crockford.decode(v.denominationRecord.denomPub))
assertEquals(v.denominationRecord.denomPubHash, Base32Crockford.encode(calculatedDenomPubHash))
val denomPubHash = Base32Crockford.encode(Random.nextBytes(calculatedDenomPubHash.size))
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(denomPubHash = denomPubHash),
v.masterPub
)
)
// different feeWithdraw fails verification
val feeWithdraw = v.denominationRecord.feeWithdraw + Amount.min(v.denominationRecord.feeWithdraw.currency)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(feeWithdraw = feeWithdraw),
v.masterPub
)
)
// different feeDeposit fails verification
val feeDeposit = v.denominationRecord.feeDeposit + Amount.min(v.denominationRecord.feeDeposit.currency)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(feeDeposit = feeDeposit),
v.masterPub
)
)
// different feeRefresh fails verification
val feeRefresh = v.denominationRecord.feeRefresh + Amount.min(v.denominationRecord.feeRefresh.currency)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(feeRefresh = feeRefresh),
v.masterPub
)
)
// different feeRefund fails verification
val feeRefund = v.denominationRecord.feeRefund + Amount.min(v.denominationRecord.feeRefund.currency)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(feeRefund = feeRefund),
v.masterPub
)
)
// different stampStart fails verification
val stampStart = Timestamp(v.denominationRecord.stampStart.ms + 1000)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(stampStart = stampStart),
v.masterPub
)
)
// different stampExpireWithdraw fails verification
val stampExpireWithdraw = Timestamp(v.denominationRecord.stampExpireWithdraw.ms + 1000)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(stampExpireWithdraw = stampExpireWithdraw),
v.masterPub
)
)
// different stampExpireLegal fails verification
val stampExpireLegal = Timestamp(v.denominationRecord.stampExpireLegal.ms + 1000)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(stampExpireLegal = stampExpireLegal),
v.masterPub
)
)
// different stampExpireDeposit fails verification
val stampExpireDeposit = Timestamp(v.denominationRecord.stampExpireDeposit.ms + 1000)
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(stampExpireDeposit = stampExpireDeposit),
v.masterPub
)
)
// different masterPub fails verification
val size = Base32Crockford.calculateDecodedDataLength(v.denominationRecord.masterSig.length)
val masterSig = Base32Crockford.encode(Random.nextBytes(size))
assertFalse(
signature.verifyDenominationRecord(
v.denominationRecord.copy(masterSig = masterSig),
v.masterPub
)
)
// different status does not affect verification
assertTrue(
signature.verifyDenominationRecord(
v.denominationRecord.copy(status = VerifiedBad),
v.masterPub
)
)
// different exchangeBaseUrl does not affect verification
assertTrue(
signature.verifyDenominationRecord(
v.denominationRecord.copy(exchangeBaseUrl = "foo.bar"),
v.masterPub
)
)
}
}
private class WireAccountSignatureVector(val paytoUri: String, val signature: String, val masterPub: String)
@Test
fun testVerifyWireAccount() {
val paytoUri = "payto://x-taler-bank/localhost/Exchange"
val vectors = listOf(
WireAccountSignatureVector(
paytoUri,
"7THNYN5G12GXZABHP187XJZ3ACTDKAWGHWYM2ERA1VGE4JMGPADXT37ZM8D4DVAQTSP8CR61VAD4ZZSWKRPP5KQ12JCTVHCKDD3KA3R",
"QPJSEA4SM8E67106C6MN2TMG4308J20C1T0D411WED1FJ00VF8ZG"
),
WireAccountSignatureVector(
paytoUri,
"6JJDJ0HG3AGRTEY1FFGHR89367GPE4FS7TC8Z26N34PHFAMSRXQ4FA7P96CDS6625SRNAN4DY1NK4TNBQXKRXQ9QR82HEVCB2FF1E18",
"8QBE0SRR84GWJ1FX2QCGGNRZTWA2FCV6YQC98Q26DRRJ0QBQE930"
),
WireAccountSignatureVector(
paytoUri,
"X5EYQJ388P8AH1PPYD2GFQ9Y1NGA7HV0TXAW6GJ7C0D6R6GAY0059HCDBE98TKJJT6MB1S660FV13DV46JDKJ622MR961XVGP6DG618",
"802M037TN8GHBXEGBPC7J41HJC06TWBWXYH36AYQHRJ7NVHJBQQ0"
)
)
for (v in vectors) {
// verification succeeds as expected
assertTrue(signature.verifyWireAccount(v.paytoUri, v.signature, v.masterPub))
// different paytoUri fails verification
assertFalse(signature.verifyWireAccount("foo", v.signature, v.masterPub))
// different paytoUri fails verification
val size = Base32Crockford.calculateDecodedDataLength(v.signature.length)
val sig = Base32Crockford.encode(Random.nextBytes(size))
assertFalse(signature.verifyWireAccount(v.paytoUri, sig, v.masterPub))
// different paytoUri fails verification
val masterPub = Base32Crockford.encode(Random.nextBytes(32))
assertFalse(signature.verifyWireAccount(v.paytoUri, sig, masterPub))
}
}
}
|
