io.nats.client

Interface AuthHandler

public interface AuthHandler

NATS provides a challenge-response based authentication scheme based on NKeys. Since NKeys depend on a private seed, we do not handle them directly in the client library. Instead you can work with them inside an AuthHandler that only makes the public key available to the library.

 
    public String getID() {
        try {
            return this.nkey.getPublicKey();
        } catch (GeneralSecurityException|IOException ex) {
            return null;
        }
    }

    public byte[] sign(byte[] nonce) {
        try {
            return this.nkey.sign(nonce);
        } catch (GeneralSecurityException|IOException ex) {
            return null;
        }
    }
   
 

Method Summary

Modifier and Type	Method and Description
java.lang.String	getID() getID should return a public key associated with a client key known to the server.
byte[]	sign(byte[] nonce) Sign is called by the library when the server sends a nonce.

Method Detail

sign

byte[] sign(byte[] nonce)

Sign is called by the library when the server sends a nonce. The client's NKey should be used to sign the provided value.

Parameters:

nonce - the nonce to sign

Returns:

the signature for the nonce

getID

java.lang.String getID()

getID should return a public key associated with a client key known to the server. If the server is not in nonce-mode, this string can be empty.

Returns:

the public key as a string