Skip to content

Change timingSafeEqual to use byteLength. #21397

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
ZaneHannanAU wants to merge 4 commits into from
Closed

Change timingSafeEqual to use byteLength. #21397

Show file tree
Hide file tree
Changes from 3 commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
72f2156
Change `timingSafeEqual` to use `byteLength`.
ZaneHannanAU Jun 19, 2018
90ff08f
Update test-crypto-timing-safe-equal.js
ZaneHannanAU Jun 19, 2018
6eba5d0
Update test-crypto-timing-safe-equal.js
ZaneHannanAU Jun 19, 2018
06a4f4f
More descriptive errors if it does error this time.
ZaneHannanAU Jun 26, 2018
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion lib/internal/crypto/util.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ function timingSafeEqual(buf1, buf2) {
throw new ERR_INVALID_ARG_TYPE('buf2',
['Buffer', 'TypedArray', 'DataView'], buf2);
}
if (buf1.length !== buf2.length) {
if (buf1.byteLength !== buf2.byteLength) {
throw new ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH();
}
return _timingSafeEqual(buf1, buf2);
Expand Down
51 changes: 51 additions & 0 deletions test/sequential/test-crypto-timing-safe-equal.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,45 @@ assert.strictEqual(
'should consider equal strings to be equal'
);

assert.strictEqual(
crypto.timingSafeEqual(Uint8Array.of(1, 0), Uint16Array.of(1)),
true,
'should consider equal binary integers to be equal'
);

assert.strictEqual(
crypto.timingSafeEqual(Uint8Array.of(0, 1), Uint16Array.of(1)),
false,
'should consider unequal binary integers to be unequal'
);

assert.strictEqual(
crypto.timingSafeEqual(
Uint8Array.of(1, 0, 0, 0, 0, 0, 0, 0),
BigUint64Array.of(1n)
),
true,
'should consider equal binary integers to be equal'
);

assert.strictEqual(
crypto.timingSafeEqual(
Buffer.allocUnsafe(8).fill(255),
BigInt64Array.of(-1n)
),
true,
'should consider equal binary integers to be equal'
);

assert.strictEqual(
crypto.timingSafeEqual(
new DataView(new ArrayBuffer(8)),
BigInt64Array.of(0n)
),
true,
'should consider equal views to be equal'
);

assert.strictEqual(
crypto.timingSafeEqual(Buffer.from('foo'), Buffer.from('bar')),
false,
Expand All @@ -27,6 +66,18 @@ common.expectsError(
}
);

common.expectsError(
() => crypto.timingSafeEqual(
Uint8Array.of(1, 2, 3),
Uint16Array.of(1, 2, 3)
),
{
code: 'ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH',
type: RangeError,
message: 'Input buffers must have the same length'
}
);

common.expectsError(
() => crypto.timingSafeEqual('not a buffer', Buffer.from([1, 2])),
{
Expand Down