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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8 with debug enabled.

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package org.bouncycastle.crypto.digests;

import org.bouncycastle.util.Memoable;
import org.bouncycastle.util.Pack;


/**
 * FIPS 180-2 implementation of SHA-384.
 *
 * 
 *         block  word  digest
 * SHA-1   512    32    160
 * SHA-256 512    32    256
 * SHA-384 1024   64    384
 * SHA-512 1024   64    512
 * 
*/ public class SHA384Digest extends LongDigest { private static final int DIGEST_LENGTH = 48; /** * Standard constructor */ public SHA384Digest() { } /** * Copy constructor. This will copy the state of the provided * message digest. */ public SHA384Digest(SHA384Digest t) { super(t); } /** * State constructor - create a digest initialised with the state of a previous one. * * @param encodedState the encoded state from the originating digest. */ public SHA384Digest(byte[] encodedState) { restoreState(encodedState); } public String getAlgorithmName() { return "SHA-384"; } public int getDigestSize() { return DIGEST_LENGTH; } public int doFinal( byte[] out, int outOff) { finish(); Pack.longToBigEndian(H1, out, outOff); Pack.longToBigEndian(H2, out, outOff + 8); Pack.longToBigEndian(H3, out, outOff + 16); Pack.longToBigEndian(H4, out, outOff + 24); Pack.longToBigEndian(H5, out, outOff + 32); Pack.longToBigEndian(H6, out, outOff + 40); reset(); return DIGEST_LENGTH; } /** * reset the chaining variables */ public void reset() { super.reset(); /* SHA-384 initial hash value * The first 64 bits of the fractional parts of the square roots * of the 9th through 16th prime numbers */ H1 = 0xcbbb9d5dc1059ed8l; H2 = 0x629a292a367cd507l; H3 = 0x9159015a3070dd17l; H4 = 0x152fecd8f70e5939l; H5 = 0x67332667ffc00b31l; H6 = 0x8eb44a8768581511l; H7 = 0xdb0c2e0d64f98fa7l; H8 = 0x47b5481dbefa4fa4l; } public Memoable copy() { return new SHA384Digest(this); } public void reset(Memoable other) { SHA384Digest d = (SHA384Digest)other; super.copyIn(d); } public byte[] getEncodedState() { byte[] encoded = new byte[getEncodedStateSize()]; super.populateState(encoded); return encoded; } }




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