blob: 93c6b10284c739c312c54e8c749afd095f334424 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
import base64url from 'base64url';
/**
* Decode an authenticator's base64-encoded clientDataJSON to JSON
*/
export default function decodeClientDataJSON(data: string): ClientDataJSON {
const toString = base64url.decode(data);
const clientData: ClientDataJSON = JSON.parse(toString);
// `challenge` will be Base64-encoded here. Decode it for easier comparisons with what is provided
// as the expected value
clientData.challenge = Buffer.from(clientData.challenge, 'base64').toString('ascii');
return clientData;
}
type ClientDataJSON = {
type: string;
challenge: string;
origin: string;
};
|
