org.spongycastle.crypto

Interface SignerWithRecovery

All Superinterfaces:

Signer

All Known Implementing Classes:

ISO9796d2PSSSigner, ISO9796d2Signer

public interface SignerWithRecovery
extends Signer

Signer with message recovery.

Method Summary

Modifier and Type	Method and Description
byte[]	getRecoveredMessage() Returns a reference to what message was recovered (if any).
boolean	hasFullMessage() Returns true if the signer has recovered the full message as part of signature verification.
void	updateWithRecoveredMessage(byte[] signature) Perform an update with the recovered message before adding any other data.

Methods inherited from interface org.spongycastle.crypto.Signer

generateSignature, init, reset, update, update, verifySignature

Method Detail

hasFullMessage

boolean hasFullMessage()

Returns true if the signer has recovered the full message as part of signature verification.

Returns:

true if full message recovered.

getRecoveredMessage

byte[] getRecoveredMessage()

Returns a reference to what message was recovered (if any).

Returns:

full/partial message, null if nothing.

updateWithRecoveredMessage

void updateWithRecoveredMessage(byte[] signature)
                         throws InvalidCipherTextException

Perform an update with the recovered message before adding any other data. This must be the first update method called, and calling it will result in the signer assuming that further calls to update will include message content past what is recoverable.

Parameters:

signature - the signature that we are in the process of verifying.

Throws:

java.lang.IllegalStateException

InvalidCipherTextException