org.bouncycastle.crypto.generators

Class PKCS5S2ParametersGenerator

public class PKCS5S2ParametersGenerator extends PBEParametersGenerator

Generator for PBE derived keys and ivs as defined by PKCS 5 V2.0 Scheme 2. This generator uses a SHA-1 HMac as the calculation function.

The document this implementation is based on can be found at RSA's PKCS5 Page

Constructor Summary
PKCS5S2ParametersGenerator()
construct a PKCS5 Scheme 2 Parameters generator.
Method Summary
CipherParametersgenerateDerivedMacParameters(int keySize)
Generate a key parameter for use with a MAC derived from the password, salt, and iteration count we are currently initialised with.
CipherParametersgenerateDerivedParameters(int keySize)
Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with.
CipherParametersgenerateDerivedParameters(int keySize, int ivSize)
Generate a key with initialisation vector parameter derived from the password, salt, and iteration count we are currently initialised with.

Constructor Detail

PKCS5S2ParametersGenerator

public PKCS5S2ParametersGenerator()
construct a PKCS5 Scheme 2 Parameters generator.

Method Detail

generateDerivedMacParameters

public CipherParameters generateDerivedMacParameters(int keySize)
Generate a key parameter for use with a MAC derived from the password, salt, and iteration count we are currently initialised with.

Parameters: keySize the size of the key we want (in bits)

Returns: a KeyParameter object.

generateDerivedParameters

public CipherParameters generateDerivedParameters(int keySize)
Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with.

Parameters: keySize the size of the key we want (in bits)

Returns: a KeyParameter object.

generateDerivedParameters

public CipherParameters generateDerivedParameters(int keySize, int ivSize)
Generate a key with initialisation vector parameter derived from the password, salt, and iteration count we are currently initialised with.

Parameters: keySize the size of the key we want (in bits) ivSize the size of the iv we want (in bits)

Returns: a ParametersWithIV object.