org.polyglotted.crypto.symmetric
Class AesDecrypter

java.lang.Object
  org.polyglotted.crypto.api.AbstractCrypto
      org.polyglotted.crypto.symmetric.AesDecrypter

All Implemented Interfaces:

Crypto

public class AesDecrypter
extends AbstractCrypto

Nested Class Summary

Nested classes/interfaces inherited from class org.polyglotted.crypto.api.AbstractCrypto

AbstractCrypto.Mode

Field Summary

Fields inherited from class org.polyglotted.crypto.api.AbstractCrypto

cipher

Fields inherited from interface org.polyglotted.crypto.api.Crypto

AES_ALGORITHM, RSA_ALGORITHM

Constructor Summary

AesDecrypter(String passPhrase)
Create a new AesDecrypter.

AesDecrypter(String passPhrase, byte[] iv)
Create a new AesDecrypter

Method Summary

String	crypt(String cipherText) Perform encrypt or decrypt action
static String	decrypt(String passPhrase, String cipherText) Decrypt the given text with a private key
static void	decryptPropertyFile(String passPhrase, InputStream propertyIs, OutputStream output, String prefix) Decrypt the incoming property file and copy the resulting data into the output stream.
AbstractCrypto.Mode	getMode()

Methods inherited from class org.polyglotted.crypto.api.AbstractCrypto

crypt, encrypt, getAlgorithm, getCipher, getHeaderLine, handlePropertyFirstLine

Methods inherited from class java.lang.Object

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

Constructor Detail

AesDecrypter

public AesDecrypter(String passPhrase)

Create a new AesDecrypter. This method does not initialize the cipher and cannot be used for encrypting without initializing it first

Parameters:

passPhrase - the Passphrase for the secret key

AesDecrypter

public AesDecrypter(String passPhrase,
                    byte[] iv)

Create a new AesDecrypter

Parameters:

passPhrase - the Passphrase for the secret key

salt - the salt for the secret key

Method Detail

getMode

public AbstractCrypto.Mode getMode()

Specified by:

getMode in class AbstractCrypto

Returns:

if this crypto performs an encrypt or decrypt operation

crypt

public String crypt(String cipherText)

Description copied from interface: Crypto

Perform encrypt or decrypt action

Parameters:

cipherText - the String to crypt

Returns:

the result String

decrypt

public static String decrypt(String passPhrase,
                             String cipherText)

Decrypt the given text with a private key

Parameters:

passPhrase - the password to decrypt with

input - the cipher data to be decryted

Returns:

the String containing plain text

decryptPropertyFile

public static void decryptPropertyFile(String passPhrase,
                                       InputStream propertyIs,
                                       OutputStream output,
                                       String prefix)

Decrypt the incoming property file and copy the resulting data into the output stream.

Parameters:

passPhrase - the password to decrypt with

propertyIs - the property file input stream

output - the output stream to write the decrypted values

prefix - the String prefix for lines which have to be decryted