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.
The verify() operation verifies a digital signature. It ensures that some data was signed by a known key and that the data has not been tampered with since it was signed.
Usage
verify(algorithm, key, signature, data)
Parameters
Name
Type
Description
algorithm
string or object with a single name string property
The key that will be used to verify the signature.
signature
ArrayBuffer
The signature to verify.
data
ArrayBuffer
The data whose signature is to be verified.
Return Value
A Promise that resolves to a boolean value indicating if the signature is valid.
Throws
Type
Description
InvalidAccessError
Raised when the key either does not support the verify operation, or is incompatible with the selected algorithm.
Example
JavaScript
import{ crypto }from'k6/experimental/webcrypto';exportdefaultasyncfunction(){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);}functionstring2ArrayBuffer(str){const buf =newArrayBuffer(str.length *2);// 2 bytes for each charconst bufView =newUint16Array(buf);for(let i =0, strLen = str.length; i < strLen; i++){
bufView[i]= str.charCodeAt(i);}return buf;}