| package org.bouncycastle.crypto; |
| |
| /** |
| * Signer with message recovery. |
| */ |
| public interface SignerWithRecovery |
| extends Signer |
| { |
| /** |
| * Returns true if the signer has recovered the full message as |
| * part of signature verification. |
| * |
| * @return true if full message recovered. |
| */ |
| public boolean hasFullMessage(); |
| |
| /** |
| * Returns a reference to what message was recovered (if any). |
| * |
| * @return full/partial message, null if nothing. |
| */ |
| public byte[] getRecoveredMessage(); |
| |
| /** |
| * 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. |
| * |
| * @param signature the signature that we are in the process of verifying. |
| * @throws IllegalStateException |
| */ |
| public void updateWithRecoveredMessage(byte[] signature) |
| throws InvalidCipherTextException; |
| } |