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SHA384Digest.javaAPI DocAndroid 1.5 API1726Wed May 06 22:41:06 BST 2009org.bouncycastle.crypto.digests

SHA384Digest

public class SHA384Digest extends LongDigest
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

Fields Summary
private static final int
DIGEST_LENGTH
Constructors Summary
public SHA384Digest()
Standard constructor


           
     
    
    
public SHA384Digest(SHA384Digest t)
Copy constructor. This will copy the state of the provided message digest.

        super(t);
    
Methods Summary
public intdoFinal(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);

        reset();

        return DIGEST_LENGTH;
    
public java.lang.StringgetAlgorithmName()

        return "SHA-384";
    
public intgetDigestSize()

        return DIGEST_LENGTH;
    
public voidreset()
reset the chaining variables

        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;