Menu
Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Open source
sign
The sign() operation generates a digital signature of the provided data, using the given
CryptoKey object.
Usage
sign(algorithm, key, data)Parameters
Return Value
A Promise that resolves with the signature as an ArrayBuffer.
Throws
Example
import { crypto } from 'k6/experimental/webcrypto';
export default async function () {
const generatedKey = await crypto.subtle.generateKey(
{
name: 'HMAC',
hash: { name: 'SHA-1' },
},
true,
['sign', 'verify']
);
const data = string2ArrayBuffer('Hello World');
/**
* Signes the encoded data with the provided key using the HMAC algorithm
* the returned signature can be verified using the verify method.
*/
const signature = await crypto.subtle.sign('HMAC', generatedKey, data);
/**
* Verifies the signature of the encoded data with the provided key using the HMAC algorithm.
*/
const verified = await crypto.subtle.verify('HMAC', generatedKey, signature, data);
console.log('verified: ', verified);
}
function string2ArrayBuffer(str) {
const buf = new ArrayBuffer(str.length * 2); // 2 bytes for each char
const bufView = new Uint16Array(buf);
for (let i = 0, strLen = str.length; i < strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return buf;
}
