digestinputstream.java

来自「进行与数字证书相关开发必须的java源码」· Java 代码 · 共 45 行

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   DigestInputStream.java

package jit.crypto.io;

import java.io.*;
import jit.crypto.Digest;

public class DigestInputStream extends FilterInputStream
{

    protected Digest digest;

    public DigestInputStream(InputStream stream, Digest digest)
    {
        super(stream);
        this.digest = digest;
    }

    public int read()
        throws IOException
    {
        int b = in.read();
        if(b >= 0)
            digest.update((byte)b);
        return b;
    }

    public int read(byte b[], int off, int len)
        throws IOException
    {
        int n = in.read(b, off, len);
        if(n > 0)
            digest.update(b, off, n);
        return n;
    }

    public Digest getDigest()
    {
        return digest;
    }
}