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'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const crypto = require('crypto');
// 'should consider equal strings to be equal'
assert.strictEqual(
crypto.timingSafeEqual(Buffer.from('foo'), Buffer.from('foo')),
true
);
// 'should consider unequal strings to be unequal'
assert.strictEqual(
crypto.timingSafeEqual(Buffer.from('foo'), Buffer.from('bar')),
false
);
{
// Test TypedArrays with different lengths but equal byteLengths.
const buf = crypto.randomBytes(16).buffer;
const a1 = new Uint8Array(buf);
const a2 = new Uint16Array(buf);
const a3 = new Uint32Array(buf);
for (const left of [a1, a2, a3]) {
for (const right of [a1, a2, a3]) {
assert.strictEqual(crypto.timingSafeEqual(left, right), true);
}
}
}
common.expectsError(
() => crypto.timingSafeEqual(Buffer.from([1, 2, 3]), Buffer.from([1, 2])),
{
code: 'ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH',
type: RangeError,
message: 'Input buffers must have the same byte length'
}
);
common.expectsError(
() => crypto.timingSafeEqual('not a buffer', Buffer.from([1, 2])),
{
code: 'ERR_INVALID_ARG_TYPE',
type: TypeError,
message:
'The "buf1" argument must be one of type Buffer, TypedArray, or ' +
'DataView. Received type string'
}
);
common.expectsError(
() => crypto.timingSafeEqual(Buffer.from([1, 2]), 'not a buffer'),
{
code: 'ERR_INVALID_ARG_TYPE',
type: TypeError,
message:
'The "buf2" argument must be one of type Buffer, TypedArray, or ' +
'DataView. Received type string'
}
);
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