sha512digest.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   SHA512Digest.java

package org.bouncycastle.crypto.digests;


// Referenced classes of package org.bouncycastle.crypto.digests:
//			LongDigest

public class SHA512Digest extends LongDigest
{

	private static final int DIGEST_LENGTH = 64;

	public SHA512Digest()
	{
	}

	public SHA512Digest(SHA512Digest t)
	{
		super(t);
	}

	public String getAlgorithmName()
	{
		return "SHA-512";
	}

	public int getDigestSize()
	{
		return 64;
	}

	public int doFinal(byte out[], int outOff)
	{
		finish();
		unpackWord(H1, out, outOff);
		unpackWord(H2, out, outOff + 8);
		unpackWord(H3, out, outOff + 16);
		unpackWord(H4, out, outOff + 24);
		unpackWord(H5, out, outOff + 32);
		unpackWord(H6, out, outOff + 40);
		unpackWord(H7, out, outOff + 48);
		unpackWord(H8, out, outOff + 56);
		reset();
		return 64;
	}

	public void reset()
	{
		super.reset();
		H1 = 0x6a09e667f3bcc908L;
		H2 = 0xbb67ae8584caa73bL;
		H3 = 0x3c6ef372fe94f82bL;
		H4 = 0xa54ff53a5f1d36f1L;
		H5 = 0x510e527fade682d1L;
		H6 = 0x9b05688c2b3e6c1fL;
		H7 = 0x1f83d9abfb41bd6bL;
		H8 = 0x5be0cd19137e2179L;
	}
}