ch.dissem.bitmessage.cryptography.sc

Class SpongyCryptography

java.lang.Object

ch.dissem.bitmessage.ports.AbstractCryptography

ch.dissem.bitmessage.cryptography.sc.SpongyCryptography

All Implemented Interfaces:

ch.dissem.bitmessage.InternalContext.ContextHolder, ch.dissem.bitmessage.ports.Cryptography

public class SpongyCryptography
extends ch.dissem.bitmessage.ports.AbstractCryptography

As Spongycastle can't be used on the Oracle JVM, and Bouncycastle doesn't work properly on Android (thanks, Google), this is the Spongycastle implementation.

Field Summary

Fields inherited from class ch.dissem.bitmessage.ports.AbstractCryptography

LOG, provider

Constructor Summary

Constructors

Constructor and Description
SpongyCryptography()

Method Summary

Modifier and Type	Method and Description
byte[]	createPoint(byte[] x, byte[] y)
byte[]	createPublicKey(byte[] privateKey)
byte[]	crypt(boolean encrypt, byte[] data, byte[] key_e, byte[] initializationVector)
byte[]	getSignature(byte[] data, ch.dissem.bitmessage.entity.valueobject.PrivateKey privateKey)
boolean	isSignatureValid(byte[] data, byte[] signature, ch.dissem.bitmessage.entity.payload.Pubkey pubkey)
byte[]	multiply(byte[] K, byte[] r)

Methods inherited from class ch.dissem.bitmessage.ports.AbstractCryptography

checkProofOfWork, createPubkey, doProofOfWork, doubleSha256, doubleSha512, doubleSha512, getInitialHash, getProofOfWorkTarget, keyToBigInt, mac, randomBytes, randomNonce, ripemd160, setContext, sha1, sha512, sha512

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpongyCryptography

public SpongyCryptography()

Method Detail

crypt

public byte[] crypt(boolean encrypt,
                    byte[] data,
                    byte[] key_e,
                    byte[] initializationVector)

createPublicKey

public byte[] createPublicKey(byte[] privateKey)

isSignatureValid

public boolean isSignatureValid(byte[] data,
                                byte[] signature,
                                ch.dissem.bitmessage.entity.payload.Pubkey pubkey)

getSignature

public byte[] getSignature(byte[] data,
                           ch.dissem.bitmessage.entity.valueobject.PrivateKey privateKey)

multiply

public byte[] multiply(byte[] K,
                       byte[] r)

createPoint

public byte[] createPoint(byte[] x,
                          byte[] y)