libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/digest/BCMessageDigest.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

package org.spongycastle.jcajce.provider.digest;

import java.security.MessageDigest;

import org.spongycastle.crypto.Digest;

public class BCMessageDigest
    extends MessageDigest
{
    protected Digest  digest;

    protected BCMessageDigest(
        Digest digest)
    {
        super(digest.getAlgorithmName());

        this.digest = digest;
    }

    public void engineReset() 
    {
        digest.reset();
    }

    public void engineUpdate(
        byte    input) 
    {
        digest.update(input);
    }

    public void engineUpdate(
        byte[]  input,
        int     offset,
        int     len) 
    {
        digest.update(input, offset, len);
    }

    public byte[] engineDigest() 
    {
        byte[]  digestBytes = new byte[digest.getDigestSize()];

        digest.doFinal(digestBytes, 0);

        return digestBytes;
    }
}