DigestingStateAwareMessageSigner (Bouncy Castle Library 1.68 API Specification)

java.lang.Object
- org.bouncycastle.pqc.crypto.DigestingMessageSigner
- - org.bouncycastle.pqc.crypto.DigestingStateAwareMessageSigner

All Implemented Interfaces:

Signer
```
public class DigestingStateAwareMessageSigner
extends DigestingMessageSigner
```
Implements the sign and verify functions for a Signature Scheme using a hash function to allow processing of large messages.
This class can be used with algorithms where the state associated with the private key changes as each signature is generated. Calling getUpdatedPrivateKey() will recover the private key that can be used to initialize a signer next time around.

Constructor Summary

Constructors
Constructor Description

DigestingStateAwareMessageSigner(StateAwareMessageSigner messSigner, Digest messDigest)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AsymmetricKeyParameter`	`getUpdatedPrivateKey()`	Return the current version of the private key with the updated state.

Methods inherited from class org.bouncycastle.pqc.crypto.DigestingMessageSigner
generateSignature, init, reset, update, update, verifySignature

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DigestingStateAwareMessageSigner
```
public DigestingStateAwareMessageSigner(StateAwareMessageSigner messSigner,
                                        Digest messDigest)
```
- Method Detail
  - getUpdatedPrivateKey
```
public AsymmetricKeyParameter getUpdatedPrivateKey()
```
    Return the current version of the private key with the updated state.
    Note: calling this method will effectively disable the Signer from being used for further signature generation without another call to init().
    
    Returns:
    
    an updated private key object, which can be used for later signature generation.