1 package org.bouncycastle.operator;
2 
3 import java.io.OutputStream;
4 
5 import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
6 
7 public interface ContentSigner
8 {
getAlgorithmIdentifier()9     AlgorithmIdentifier getAlgorithmIdentifier();
10 
11     /**
12      * Returns a stream that will accept data for the purpose of calculating
13      * a signature. Use org.bouncycastle.util.io.TeeOutputStream if you want to accumulate
14      * the data on the fly as well.
15      *
16      * @return an OutputStream
17      */
getOutputStream()18     OutputStream getOutputStream();
19 
20     /**
21      * Returns a signature based on the current data written to the stream, since the
22      * start or the last call to getSignature().
23      *
24      * @return bytes representing the signature.
25      */
getSignature()26     byte[] getSignature();
27 }
28