org.protempa.dest.deid

Class CipherEncryption

java.lang.Object

org.protempa.dest.deid.CipherEncryption

All Implemented Interfaces:

Encryption

public class CipherEncryption
extends Object
implements Encryption

Utility class for encrypting and decrypting strings. Uses the DES/ECB/PKCS5Padding cipher transformation, which supports a key size of up to 56 bytes.

Author:

Andrew Post

Constructor Summary

Constructors

Constructor and Description
CipherEncryption(CipherDeidConfig deidConfig)

Method Summary

Modifier and Type	Method and Description
String	encrypt(String keyId, String str) Encrypts the provided string.

Methods inherited from class java.lang.Object

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

Constructor Detail

CipherEncryption

public CipherEncryption(CipherDeidConfig deidConfig)
                 throws EncryptionInitException

Throws:

EncryptionInitException

Method Detail

encrypt

public String encrypt(String keyId,
                      String str)
               throws org.protempa.dest.deid.EncryptException

Encrypts the provided string. This method applies the DES/ECB/PKCS5Padding cipher and outputs the encrypted data as a hex string. If an exception is thrown, this instance may no longer be usable.

Specified by:

encrypt in interface Encryption

Parameters:

str - the string to encrypt.

Returns:

the encrypted data as a hex string, or null if the provided string is null.

Throws:

IllegalBlockSizeException - if the provided string cannot be encrypted.

EncryptException - if the provided string cannot be encrypted.