edu.vt.middleware.crypt.pbe
Class PBES1EncryptionScheme

java.lang.Object
  edu.vt.middleware.crypt.pbe.AbstractEncryptionScheme
      edu.vt.middleware.crypt.pbe.PBES1EncryptionScheme

All Implemented Interfaces:

EncryptionScheme

public class PBES1EncryptionScheme
extends AbstractEncryptionScheme

Implements the PBES1 encryption scheme defined in PKCS#5v2.

Version:

$Revision: 2744 $

Author:

Middleware Services

Field Summary

static int	IV_LENGTH Number of bytes (octets) in IV.
static int	KEY_LENGTH Number of bytes (octets) in derived key.

Fields inherited from class edu.vt.middleware.crypt.pbe.AbstractEncryptionScheme

cipher

Constructor Summary

PBES1EncryptionScheme(PBES1Algorithm alg, PBEParameter params)
Creates a new instance with the given parameters.

PBES1EncryptionScheme(SymmetricAlgorithm alg, DigestAlgorithm digest, PBEParameter params)
Creates a new instance with the given parameters.

Method Summary

protected void

initCipher(char[] password) Initializes the cipher with the given PBE derived key bytes.

Methods inherited from class edu.vt.middleware.crypt.pbe.AbstractEncryptionScheme

decrypt, decrypt, encrypt, encrypt, setCipher

Methods inherited from class java.lang.Object

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

Field Detail

KEY_LENGTH

public static final int KEY_LENGTH

Number of bytes (octets) in derived key.

See Also:

Constant Field Values

IV_LENGTH

public static final int IV_LENGTH

Number of bytes (octets) in IV.

See Also:

Constant Field Values

Constructor Detail

PBES1EncryptionScheme

public PBES1EncryptionScheme(PBES1Algorithm alg,
                             PBEParameter params)

Creates a new instance with the given parameters.

Parameters:

alg - Describes hash/algorithm pair suitable for PBES1 scheme.

params - Key generation function salt and iteration count.

PBES1EncryptionScheme

public PBES1EncryptionScheme(SymmetricAlgorithm alg,
                             DigestAlgorithm digest,
                             PBEParameter params)

Creates a new instance with the given parameters.

Parameters:

alg - Symmetric algorithm used for encryption/decryption.

digest - Key generation function digest.

params - Key generation function salt and iteration count.

Method Detail

initCipher

protected void initCipher(char[] password)

Initializes the cipher with the given PBE derived key bytes.

Specified by:

initCipher in class AbstractEncryptionScheme

Parameters:

password - PBE password.