Skip to content

crypto: fixup randomFill size and offset handling #38138

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
jasnell wants to merge 3 commits into from
Closed

crypto: fixup randomFill size and offset handling #38138

Show file tree
Hide file tree
Changes from 2 commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
b394ef2
crypto: fixup randomFill size and offset handling
jasnell Apr 7, 2021
1e91615
[Squash] nit
jasnell Apr 8, 2021
4643682
[Squash] nit
jasnell Apr 8, 2021
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
6 changes: 3 additions & 3 deletions lib/internal/crypto/random.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -155,10 +155,11 @@ function randomFill(buf, offset, size, callback) {
if (typeof offset === 'function') {
callback = offset;
offset = 0;
size = buf.bytesLength;
// size is a length here, assertSize() call turns it into a number of bytes
size = buf.length;
} else if (typeof size === 'function') {
callback = size;
size = buf.byteLength - offset;
size = buf.length - offset;
} else {
validateCallback(callback);
}
Expand All @@ -176,7 +177,6 @@ function randomFill(buf, offset, size, callback) {
return;
}

// TODO(@jasnell): This is not yet handling byte offsets right
const job = new RandomBytesJob(
kCryptoJobAsync,
buf,
Expand Down
7 changes: 7 additions & 0 deletions test/parallel/test-crypto-random.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -525,3 +525,10 @@ assert.throws(
assert.throws(() => crypto.randomInt(0, 1, i), cbError);
});
}

{
// Verify that it doesn't throw or abort
crypto.randomFill(new Uint16Array(10), 0, common.mustSucceed());
crypto.randomFill(new Uint32Array(10), 0, common.mustSucceed());
crypto.randomFill(new Uint32Array(10), 0, 1, common.mustSucceed());
}