com.plumtree.openfoundation.security
Class XPCrypto

java.lang.Object
  com.plumtree.openfoundation.security.XPCrypto

public class XPCrypto

extends java.lang.Object

Main class used for cryptography operations.

Can be used to get a crypto instance to encrypt a string, i.e.:

XPCrypto.GetInstance(XPCryptoType.RC2).Encrypt();

Can be used to decrypt a string directly, i.e.(this will attempt to determine type of crypto used to encrypt):

XPCrypto.Decrypt(myciphertext,"mykey")

Method Summary

static java.lang.String	Decrypt(java.lang.String toDecrypt, java.lang.String key) Decrypts data.
static IXPCrypto	GetInstance(XPCryptoType type) Gets an IXPCrypto instance which can be use to encrypt and decrypt data using private key encryption.
static IXPPKICrypto	GetPKIInstance(XPPKICryptoType type) Gets an IXPPKICrypto instance which can be use to encrypt, decrypt, sign and verify data using public key encryption.
static boolean	UsesPKIEncrytion(java.lang.String toDecrypt) Determines whether a string has been encrypted using PKI encryption.

Methods inherited from class java.lang.Object

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

Method Detail

GetInstance

public static IXPCrypto GetInstance(XPCryptoType type)

Gets an IXPCrypto instance which can be use to encrypt and decrypt data using private key encryption.

Parameters:

type - the type of crypto instance required

Returns:

an IXPCrypto instance

GetPKIInstance

public static IXPPKICrypto GetPKIInstance(XPPKICryptoType type)

Gets an IXPPKICrypto instance which can be use to encrypt, decrypt, sign and verify data using public key encryption.

Parameters:

type - the type of crypto instance required

Returns:

an IXPPKICrypto instance

Decrypt

public static java.lang.String Decrypt(java.lang.String toDecrypt,
                                       java.lang.String key)

Decrypts data. This attempts to locate the crypto instance used to encrypt the data and uses it to decrypt it. Encryption must be performed using an instance obtained using GetInstance(XPCryptoType)

Parameters:

toDecrypt - the data to decrypt

key - the key to use to decrypt the data

Returns:

the decrypted data

Throws:

XPIllegalArgumentException - if the key or ciphertext to decrypt is null or empty.

XPCryptoException - if the encrypted string appears to be encrypted with a PKI cipher.

XPNoSuchAlgorithmException - (subtype of XPCryptoException) if the encryption method is not recognized.

UsesPKIEncrytion

public static boolean UsesPKIEncrytion(java.lang.String toDecrypt)

Determines whether a string has been encrypted using PKI encryption.

Parameters:

toDecrypt - the string which has been encryted

Returns:

true if and only if this string was encrypted using PKI encryption