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f2e02883e7
ECDH.convertKey is used to convert public keys between different formats. PR-URL: https://github.com/nodejs/node/pull/19080 Fixes: https://github.com/nodejs/node/issues/18977 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: James M Snell <jasnell@gmail.com>
102 lines
3.4 KiB
JavaScript
102 lines
3.4 KiB
JavaScript
'use strict';
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const common = require('../common');
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if (!common.hasCrypto)
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common.skip('missing crypto');
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const assert = require('assert');
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const { ECDH, getCurves } = require('crypto');
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// A valid private key for the secp256k1 curve.
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const cafebabeKey = 'cafebabe'.repeat(8);
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// Associated compressed and uncompressed public keys (points).
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const cafebabePubPtComp =
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'03672a31bfc59d3f04548ec9b7daeeba2f61814e8ccc40448045007f5479f693a3';
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const cafebabePubPtUnComp =
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'04672a31bfc59d3f04548ec9b7daeeba2f61814e8ccc40448045007f5479f693a3' +
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'2e02c7f93d13dc2732b760ca377a5897b9dd41a1c1b29dc0442fdce6d0a04d1d';
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// Invalid test: key argument is undefined.
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common.expectsError(
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() => ECDH.convertKey(),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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type: TypeError,
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});
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// Invalid test: curve argument is undefined.
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common.expectsError(
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() => ECDH.convertKey(cafebabePubPtComp),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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type: TypeError,
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});
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// Invalid test: curve argument is invalid.
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common.expectsError(
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() => ECDH.convertKey(cafebabePubPtComp, 'badcurve'),
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{
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type: TypeError,
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message: 'Invalid ECDH curve name'
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});
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if (getCurves().includes('secp256k1')) {
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// Invalid test: format argument is undefined.
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common.expectsError(
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() => ECDH.convertKey(cafebabePubPtComp, 'secp256k1', 'hex', 'hex', 10),
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{
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code: 'ERR_CRYPTO_ECDH_INVALID_FORMAT',
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type: TypeError,
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message: 'Invalid ECDH format: 10'
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});
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// Point formats.
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let uncompressed = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'buffer',
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'uncompressed');
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let compressed = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'buffer',
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'compressed');
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let hybrid = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'buffer',
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'hybrid');
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assert.strictEqual(uncompressed[0], 4);
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let firstByte = compressed[0];
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assert(firstByte === 2 || firstByte === 3);
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firstByte = hybrid[0];
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assert(firstByte === 6 || firstByte === 7);
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// Format conversion from hex to hex
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uncompressed = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'hex',
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'uncompressed');
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compressed = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'hex',
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'compressed');
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hybrid = ECDH.convertKey(cafebabePubPtComp,
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'secp256k1',
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'hex',
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'hex',
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'hybrid');
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assert.strictEqual(uncompressed, cafebabePubPtUnComp);
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assert.strictEqual(compressed, cafebabePubPtComp);
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// Compare to getPublicKey.
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const ecdh1 = ECDH('secp256k1');
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ecdh1.generateKeys();
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ecdh1.setPrivateKey(cafebabeKey, 'hex');
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assert.strictEqual(ecdh1.getPublicKey('hex', 'uncompressed'), uncompressed);
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assert.strictEqual(ecdh1.getPublicKey('hex', 'compressed'), compressed);
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assert.strictEqual(ecdh1.getPublicKey('hex', 'hybrid'), hybrid);
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}
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