org.openzen.zengarden.security

Class ZCoder

java.lang.Object

org.openzen.zengarden.security.ZCoder

public final class ZCoder
extends java.lang.Object

Provides simple primitives for elliptic curve cryptography. The primitives work as follows:

• A key pair can be generated using generateKeyPair()
• Private and public keys can be converted to byte arrays using their respective encode() methods.
• Private and public keys can be deserialized from byte arrays using the decodePrivateKey and decodePublicKey functions.
• A private and public key can be combined to generate a symmetric key. This is done with the ZPrivateKey.makeSymmetricKey() method.
• Symmetric keys can be used to create encoders and decoders.
• Public keys can be used to encrypt data or verify signatures.
• Private keys can be used to decrypt data or create signatures.

This provides all the basics necessary for cryptography, without having to bother much about the technical and implementation details. Note that the used encodings for public and private keys are not standardized in any way and can currently only be used internally. Make sure to install the unlimited strength cryptography jurisdiction files! This class will fail to function without them!

Method Summary

Modifier and Type	Method and Description
boolean	bcryptCheck(java.lang.String hash, java.lang.String data)
java.lang.String	bcryptHash(java.lang.String data)
java.lang.String	bcryptHash(java.lang.String data, int workFactor)
ZPrivateKey	decodePrivateKey(byte[] data)
ZPublicKey	decodePublicKey(byte[] data)
ZSymmetricKey	decodeSymmetricKey(byte[] data)
ZSymmetricKey	generateKey()
ZKeyPair	generateKeyPair()
static ZCoder	getInstance() Returns a ZCoder instance.
byte[]	sha256(byte[] data)
byte[]	sha512(byte[] data)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ZCoder getInstance()

Returns a ZCoder instance.

Returns:

zcoder instance

generateKeyPair

public ZKeyPair generateKeyPair()

generateKey

public ZSymmetricKey generateKey()

decodePrivateKey

public ZPrivateKey decodePrivateKey(byte[] data)

decodePublicKey

public ZPublicKey decodePublicKey(byte[] data)

decodeSymmetricKey

public ZSymmetricKey decodeSymmetricKey(byte[] data)

sha256

public byte[] sha256(byte[] data)

sha512

public byte[] sha512(byte[] data)

bcryptHash

public java.lang.String bcryptHash(java.lang.String data)

bcryptHash

public java.lang.String bcryptHash(java.lang.String data,
                                   int workFactor)

bcryptCheck

public boolean bcryptCheck(java.lang.String hash,
                           java.lang.String data)