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createHMAC( algorithm, secret )
Note
A module with a better and standard API exists.
The new k6/experimental/webcrypto API partially implements the WebCryptoAPI, supporting more features than k6/crypto.
Creates a HMAC hashing object that can then be fed with data repeatedly, and from which you can extract a signed hash digest whenever you want.
Parameter | Type | Description |
---|---|---|
algorithm | string | The hashing algorithm to use. One of md4 , md5 , sha1 , sha256 , sha384 , sha512 , sha512_224 , sha512_256 or ripemd160 . |
secret | string / ArrayBuffer | A shared secret used to sign the data. |
Returns
Type | Description |
---|---|
object | A Hasher object. |
Example
JavaScript
import crypto from 'k6/crypto';
export default function () {
console.log(crypto.hmac('sha256', 'a secret', 'my data', 'hex'));
const hasher = crypto.createHMAC('sha256', 'a secret');
hasher.update('my ');
hasher.update('data');
console.log(hasher.digest('hex'));
}
The above script should result in the following being printed during execution:
bash
INFO[0000] 82f669c8fde13aef6d6977257588dc4953dfac505428f8fd6b52e19cd96d7ea5
INFO[0000] 82f669c8fde13aef6d6977257588dc4953dfac505428f8fd6b52e19cd96d7ea5
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