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simple/frontend/tests/sp.test.js
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catarrh cc2edb3d8a feat: one keyset per key version - indexed keys and counters (v3.8.0) 
A card usually holds several OTA key sets, and the SCP80 counter is tracked
per key version on the card, so a preset now carries one keyset per
GlobalPlatform key version - the b8..b5 nibble of KIc/KID (TS 102 225
5.1.2/A.2), the version is implicit in the bytes.  The spec is explicit:
"a dedicated counter shall be associated to each key version" (Annex A.1) and
"the key version number indicated in the KIc and KID (bits b8..b5) fields
shall be identical when different from 0" - a mismatch is rejected by the card
with "Unidentified security error" (A.2).

Server (presets.py, schema 2):
- a preset carries `keysets: [{kic, kid, kicKey, kidKey, cntr}]`; validation
  refuses a KIc/KID version mismatch (A.2), a version outside 01-0F ('00'
  means "no security" and is a packet-level choice, not a keyset), duplicate
  versions and missing keys/counters; a v3.8.0 flat preset converts into one
  keyset on load and on import;
- `set_counter(..., kvn)` writes the counter of that keyset (monotonic per
  keyset), the audit line carries the kvn, and `find_keyset()` serves the
  lookups;
- the operations derive the key version from the request's KIc byte and
  persist into that keyset: /api/send-ota, the RAM install/install-app/compat
  steps (_ram_send_gp_apdu) and the test runner's SCP80 steps (which may name
  a `kvn` per step and keep one working counter per keyset);
- a non-zero key version the named preset does not define, or a KIc/KID
  mismatch, is refused before anything is built (_preset_keyset_check /
  _keyset_guard: 400, or a step error in the test runner).  Without a
  preset_id only the mismatch rule applies.

PWA:
- the Cards form's KIc/KID/counter/keys inputs become a keyset editor (one row
  per version: KIc, KID, both keys, that version's counter, Add/Remove; the
  version is shown derived from the bytes and a mismatch is flagged);
- the SCP80 and RAM views get a Key-version selector beside the preset
  selector, driving the KIc/KID bytes and loading that keyset's keys and
  counter; the packet builder refuses a version the preset does not define
  (spKeysetCheck/spKeysetGuard, pure and unit-tested);
- the counter syncs are per keyset (spCntrLocalSync/ramSaveCntr), the SCP80
  form's counter edit posts the keysets, and the test-run write-back syncs
  every counter the server reports (scp80_counters).

Docs/help/AGENTS updated; sw cache simple-v335.  Tests: 610 Python (store
keysets, endpoint refusals, the counter landing in the right keyset) and 726
Node (keysets.test.js plus the updated harnesses).
2026-09-30 15:15:21 +03:00

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const { test } = require('node:test');
const assert = require('node:assert');
const fs = require('node:fs');
const path = require('node:path');
const des = require('des.js');
global.des = des;
const aesjs = require('aes-js');
global.aesjs = aesjs;
const html = fs.readFileSync(path.join(__dirname, '..', 'index.html'), 'utf8');
function extractFunc(src, name) {
const re = new RegExp('function\\s+' + name + '\\s*\\([^)]*\\)\\s*\\{');
const m = re.exec(src);
if (!m) throw new Error('function ' + name + ' not found');
let i = m.index + m[0].length - 1;
let depth = 0;
for (; i < src.length; i++) {
if (src[i] === '{') depth++;
else if (src[i] === '}') {
depth--;
if (depth === 0) break;
}
}
return src.slice(m.index, i + 1);
}
const FNS = ['hexToBytes', 'bytesToHex', 'des3Keys', 'des3EncryptBlock', 'des3CbcEncrypt',
'xorBytes', 'zeroPad', 'crc32Bytes', 'cbcMac', 'aesCbcEncrypt', 'aesShiftLeft1', 'aesCmacSubkeys',
'aesCmac', '_genSpBuild', 'genSp', 'spNextCntr', 'scp80SegmentInfo', 'spSizeInfoText',
'spShowSizeInfo',
// the key-version guard genSp runs before building (TS 102 225 A.2)
'spKeysetKvnOf', 'spKeysetList', 'spKeysetFor', 'spKeysetCheck',
'spPresetIdx', 'spKeysetGuard'];
let code = '';
for (const f of FNS) code += extractFunc(html, f) + '\n';
for (const c of ['SCP80_MAX_SMS', 'SCP80_SINGLE_BYTES', 'SCP80_FIRST_BYTES', 'SCP80_NEXT_BYTES']) {
code += html.match(new RegExp('const ' + c + ' = \\d+;'))[0].replace('const ', 'var ') + '\n';
}
code += 'function t(s){return s;}\n';
// All test vectors are computed with the synthetic dummy key material below
// (no live/sample card keys, no ICCIDs). They are cross-checked byte-for-byte
// against pySim's OtaDialectSms.encode_cmd reference implementation.
const K = '00112233445566778899AABBCCDDEEFF';
const DEFAULTS = {
'sp-apdu': '00A40000023F00',
'sp-spi1': '06',
'sp-spi2-hex': '09',
'sp-kic-hex': '15',
'sp-kid-hex': '15',
'sp-tar': 'B00000',
'sp-cntr': '0000000001',
'sp-kic-key': K,
'sp-kid-key': K,
'sp-padding': '00',
};
const values = {};
const elements = {};
global.document = {
getElementById(id) {
if (!elements[id]) elements[id] = { value: values[id] || '' };
return elements[id];
},
};
eval(code);
function run() {
genSp();
return (elements['sp-result'] || { value: '' }).value;
}
function makeRun(overrides) {
for (const [id, v] of Object.entries(DEFAULTS)) {
values[id] = v;
if (elements[id]) elements[id].value = v;
}
for (const [id, v] of Object.entries(overrides || {})) {
values[id] = v;
if (elements[id]) elements[id].value = v;
}
return run();
}
test('ciphered + CC SPI 06/09', () => {
assert.strictEqual(
makeRun({}),
'00201506091515B00000C08F58C38860ACB3A362FFFE670AD13759A2A6B4C1A91116');
});
test('ciphered + CC SPI 16/01 (counter_must_be_higher, plaintext PoR)', () => {
assert.strictEqual(
makeRun({ 'sp-spi1': '16', 'sp-spi2-hex': '01' }),
'00201516011515B00000E42573469E68A8462A57A505B0E2B1C09C1928C7A182311F');
});
test('unciphered + CC SPI 02/09 carries the CPL', () => {
const out = makeRun({ 'sp-spi1': '02', 'sp-spi2-hex': '09' });
assert.strictEqual(out,
'001D1502091515B0000000000000010085A8CA1A9828B0BB00A40000023F00');
assert.strictEqual(parseInt(out.slice(0, 4), 16), out.length / 2 - 2);
});
test('unprotected packet (SPI 00) keeps the pySim CHL-first form', () => {
assert.strictEqual(
makeRun({ 'sp-spi1': '00', 'sp-spi2-hex': '09' }),
'0D00091515B0000000000000010000A40000023F00');
});
test('unprotected concatenated packet gains the CPL (TS 31.115 4.3)', () => {
const out = makeRun({ 'sp-spi1': '00', 'sp-spi2-hex': '09', 'sp-apdu': 'A0'.repeat(200) });
assert.strictEqual(out.length / 2, 216);
assert.strictEqual(parseInt(out.slice(0, 4), 16), 214);
assert.strictEqual(out.slice(4, 6), '0D');
assert.strictEqual(scp80SegmentInfo(out).segments, 2);
});
test('RC (SPI 01) computes CRC-32 over the CPL frame', () => {
assert.strictEqual(
makeRun({ 'sp-spi1': '01', 'sp-spi2-hex': '09' }),
'00191101091515B0000000000000010050C942DC00A40000023F00');
});
test('DS (SPI 03) is refused instead of building an unsigned packet', () => {
assert.match(makeRun({ 'sp-spi1': '03' }), /Digital Signature/);
});
test('crc32Bytes known answer (TS 102 225 Annex B)', () => {
assert.strictEqual(bytesToHex(crc32Bytes(hexToBytes('0102030405'))), '470B99F4');
});
test('sysmocom public reference vector (spi1 04 / spi2 19, cntr=0)', () => {
assert.strictEqual(
makeRun({
'sp-spi1': '04',
'sp-spi2-hex': '19',
'sp-kic-hex': '35',
'sp-kid-hex': '35',
'sp-cntr': '0000000000',
'sp-kic-key': 'C21DD66ACAC13CB3BC8B331B24AFB57B',
'sp-kid-key': '12110C78E678C25408233076AA033615',
}),
'00180D04193535B00000E3EC80A849B554421276AF3883927C20');
});
test('missing APDU reports an error', () => {
assert.strictEqual(makeRun({ 'sp-apdu': '' }), 'Error: specify APDU');
});
test('cbcMac known answer (synthetic key)', () => {
const input = hexToBytes('001d1502091515b0000000000000010000a40000023f00');
assert.strictEqual(bytesToHex(cbcMac(input, hexToBytes(K))), '85A8CA1A9828B0BB');
});
// Public synthetic AES keys from pySim tests/unittests/test_ota.py (no live keys).
const KIC_AES = '200102030405060708090a0b0c0d0e0f';
const KID_AES = '201102030405060708090a0b0c0d0e0f';
test('aesCmac known answer (NIST SP 800-38B, truncated to 8)', () => {
const key = hexToBytes('2b7e151628aed2a6abf7158809cf4f3c');
assert.strictEqual(bytesToHex(aesCmac(new Uint8Array(0), key)), 'BB1D6929E9593728');
assert.strictEqual(
bytesToHex(aesCmac(hexToBytes('6bc1bee22e409f96e93d7e117393172a'), key)),
'070A16B46B4D4144');
assert.strictEqual(
bytesToHex(aesCmac(hexToBytes('6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411'), key)),
'DFA66747DE9AE630');
});
test('AES ciphered + CC SPI 16/19 (counter higher)', () => {
assert.strictEqual(
makeRun({
'sp-apdu': '00A40004023F00',
'sp-spi1': '16',
'sp-spi2-hex': '19',
'sp-kic-hex': '22',
'sp-kid-hex': '22',
'sp-tar': 'B00011',
'sp-cntr': '0000000011',
'sp-kic-key': KIC_AES,
'sp-kid-key': KID_AES,
}),
'00281516192222B000115A47655527E96E832F1A5C698655715D4331454A0D83952C0ED35245706976B1');
});
test('AES unciphered + CC SPI 12/09 (counter higher)', () => {
assert.strictEqual(
makeRun({
'sp-apdu': '00A40004023F00',
'sp-spi1': '12',
'sp-spi2-hex': '09',
'sp-kic-hex': '22',
'sp-kid-hex': '22',
'sp-tar': 'B00011',
'sp-cntr': '0000000011',
'sp-kic-key': KIC_AES,
'sp-kid-key': KID_AES,
}),
'001D1512092222B0001100000000110029826122C7A0B79500A40004023F00');
});
test('AES ciphered + CC SPI 1E/19 (counter +1)', () => {
assert.strictEqual(
makeRun({
'sp-apdu': '00A40004023F00',
'sp-spi1': '1E',
'sp-spi2-hex': '19',
'sp-kic-hex': '22',
'sp-kid-hex': '22',
'sp-tar': 'B00011',
'sp-cntr': '0000000011',
'sp-kic-key': KIC_AES,
'sp-kid-key': KID_AES,
}),
'0028151E192222B0001118B202EE47A3203E7370861C383B4142E704157B36E5C0EB4BB33EB6036CBAF8');
});
test('AES rejects no_counter (SPI1 b5b4 = 00)', () => {
const err = makeRun({
'sp-apdu': '00A40004023F00',
'sp-spi1': '06',
'sp-spi2-hex': '19',
'sp-kic-hex': '22',
'sp-kid-hex': '22',
'sp-tar': 'B00011',
'sp-cntr': '0000000011',
'sp-kic-key': KIC_AES,
'sp-kid-key': KID_AES,
});
assert.ok(err.startsWith('Error: AES requires a replay-protected counter'));
});
test('AES rejects 8-byte key', () => {
const err = makeRun({
'sp-apdu': '00A40004023F00',
'sp-spi1': '16',
'sp-spi2-hex': '19',
'sp-kic-hex': '22',
'sp-kid-hex': '22',
'sp-tar': 'B00011',
'sp-cntr': '0000000011',
'sp-kic-key': '0011223344556677',
'sp-kid-key': KID_AES,
});
assert.strictEqual(err, 'Error: AES KIc key must be 16, 24, or 32 bytes');
});
test('spNextCntr increments with carry', () => {
assert.strictEqual(spNextCntr('0000000001'), '0000000002');
assert.strictEqual(spNextCntr('00000000FF'), '0000000100');
assert.strictEqual(spNextCntr('000000FFFF'), '0000010000');
assert.strictEqual(spNextCntr('0000ABCDEF'), '0000ABCDF0');
});
test('spNextCntr keeps the full 5 bytes (no 32-bit truncation)', () => {
assert.strictEqual(spNextCntr('10000AAAC8'), '10000AAAC9'); // the reported case
assert.strictEqual(spNextCntr('1000 0AAAC8'), '10000AAAC9'); // separators stripped
assert.strictEqual(spNextCntr('FFFFFFFFF7'), 'FFFFFFFFF8');
assert.strictEqual(spNextCntr('FFFFFFFFFF'), '0000000000'); // 40-bit wrap
assert.strictEqual(spNextCntr('10000000000'), '0000000001'); // out of range clamps
});
test('spNextCntr tolerates lower case and separators', () => {
assert.strictEqual(spNextCntr('00000000 0a'), '000000000B');
assert.strictEqual(spNextCntr(''), '0000000001');
});
test('scp80SegmentInfo mirrors the server segmentation rules', () => {
assert.deepStrictEqual(scp80SegmentInfo(''), { bytes: 0, segments: 0 });
assert.deepStrictEqual(scp80SegmentInfo('AA'.repeat(137)), { bytes: 137, segments: 1 });
assert.deepStrictEqual(scp80SegmentInfo('AA'.repeat(138)), { bytes: 138, segments: 2 });
assert.deepStrictEqual(scp80SegmentInfo('AA'.repeat(132 + 134)), { bytes: 266, segments: 2 });
assert.deepStrictEqual(scp80SegmentInfo('AA'.repeat(132 + 134 * 2)), { bytes: 400, segments: 3 });
});
test('spSizeInfoText reports size, SMS count and the card buffer limit', () => {
assert.strictEqual(spSizeInfoText('AA'.repeat(18)), '18 bytes · 1 SMS');
assert.strictEqual(spSizeInfoText('AA'.repeat(266)), '266 bytes · 2 SMS (concatenated)');
assert.match(spSizeInfoText('AA'.repeat(132 + 134 * 5)),
/too large for the card concatenation buffer \(5 SMS\)/);
assert.strictEqual(spSizeInfoText(''), '');
});
test('the SCP80 UI constants match the server segmentation constants', () => {
const py = fs.readFileSync(
path.join(__dirname, '..', '..', 'pysim_simple_server', 'server.py'), 'utf8');
const read = (name) => {
const m = new RegExp('^' + name + '\\s*=\\s*(\\d+)', 'm').exec(py);
assert.ok(m, name + ' not found in server.py');
return parseInt(m[1], 10);
};
assert.strictEqual(SCP80_SINGLE_BYTES, read('SCP80_SINGLE_BYTES'));
assert.strictEqual(SCP80_FIRST_BYTES, read('SCP80_FIRST_BYTES'));
assert.strictEqual(SCP80_NEXT_BYTES, read('SCP80_NEXT_BYTES'));
assert.strictEqual(SCP80_MAX_SMS, read('MAX_ENVELOPE_SEGMENTS'));
});
test('a generated single-SMS packet shows its size and SMS count', () => {
const pkt = makeRun({});
const info = elements['sp-size-info'] || {};
assert.strictEqual(info.textContent, (pkt.length / 2) + ' bytes · 1 SMS');
});
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