org.pgpainless.symmetric_encryption

Class SymmetricEncryptorDecryptor

java.lang.Object

org.pgpainless.symmetric_encryption.SymmetricEncryptorDecryptor

public class SymmetricEncryptorDecryptor
extends Object

Stolen from Bouncycastle examples.

Constructor Summary

Constructors

Constructor and Description
SymmetricEncryptorDecryptor()

Method Summary

Modifier and Type	Method and Description
static byte[]	symmetricallyDecrypt(byte[] data, Passphrase password) Decrypt and decompress some symmetrically encrypted data using a password.
static byte[]	symmetricallyEncrypt(byte[] data, Passphrase password, SymmetricKeyAlgorithm encryptionAlgorithm, CompressionAlgorithm compressionAlgorithm) Encrypt some data symmetrically using an encryptionAlgorithm and a given password.

Methods inherited from class java.lang.Object

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

Constructor Detail

SymmetricEncryptorDecryptor

public SymmetricEncryptorDecryptor()

Method Detail

symmetricallyEncrypt

public static byte[] symmetricallyEncrypt(@Nonnull
                                          byte[] data,
                                          @Nonnull
                                          Passphrase password,
                                          @Nonnull
                                          SymmetricKeyAlgorithm encryptionAlgorithm,
                                          @Nonnull
                                          CompressionAlgorithm compressionAlgorithm)
                                   throws IOException,
                                          org.bouncycastle.openpgp.PGPException

Encrypt some data symmetrically using an encryptionAlgorithm and a given password. The input data will be compressed using the given compressionAlgorithm and packed in a modification detection package, which is then encrypted.

Parameters:

data - bytes that will be encrypted

password - password that will be used to encrypt the data

encryptionAlgorithm - symmetric algorithm that will be used to encrypt the data

compressionAlgorithm - compression algorithm that will be used to compress the data

Returns:

encrypted data

Throws:

IOException - IO is dangerous

org.bouncycastle.openpgp.PGPException - OpenPGP is brittle

symmetricallyDecrypt

public static byte[] symmetricallyDecrypt(@Nonnull
                                          byte[] data,
                                          @Nonnull
                                          Passphrase password)
                                   throws IOException,
                                          org.bouncycastle.openpgp.PGPException

Decrypt and decompress some symmetrically encrypted data using a password. Note, that decryption will fail if the given data is not integrity protected with a modification detection package.

Parameters:

data - encrypted data

password - password to decrypt the data

Returns:

decrypted data

Throws:

IOException - IO is dangerous

org.bouncycastle.openpgp.PGPException - OpenPGP is brittle