org.spongycastle.crypto.engines

Class OldIESEngine

java.lang.Object

org.spongycastle.crypto.engines.IESEngine

org.spongycastle.crypto.engines.OldIESEngine

public class OldIESEngine
extends IESEngine

Support class for constructing integrated encryption ciphers for doing basic message exchanges on top of key agreement ciphers. Follows the description given in IEEE Std 1363a.

Constructor Summary

Constructors

Constructor and Description
OldIESEngine(BasicAgreement agree, DerivationFunction kdf, Mac mac) set up for use with stream mode, where the key derivation function is used to provide a stream of bytes to xor with the message.
OldIESEngine(BasicAgreement agree, DerivationFunction kdf, Mac mac, BufferedBlockCipher cipher) set up for use in conjunction with a block cipher to handle the message.

Method Summary

Modifier and Type	Method and Description
protected byte[]	getLengthTag(byte[] p2)

Methods inherited from class org.spongycastle.crypto.engines.IESEngine

getCipher, getMac, init, init, init, processBlock

Methods inherited from class java.lang.Object

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

Constructor Detail

OldIESEngine

public OldIESEngine(BasicAgreement agree,
                    DerivationFunction kdf,
                    Mac mac)

set up for use with stream mode, where the key derivation function is used to provide a stream of bytes to xor with the message.

Parameters:

agree - the key agreement used as the basis for the encryption

kdf - the key derivation function used for byte generation

mac - the message authentication code generator for the message

OldIESEngine

public OldIESEngine(BasicAgreement agree,
                    DerivationFunction kdf,
                    Mac mac,
                    BufferedBlockCipher cipher)

set up for use in conjunction with a block cipher to handle the message.

Parameters:

agree - the key agreement used as the basis for the encryption

kdf - the key derivation function used for byte generation

mac - the message authentication code generator for the message

cipher - the cipher to used for encrypting the message

Method Detail

getLengthTag

protected byte[] getLengthTag(byte[] p2)

Overrides:

getLengthTag in class IESEngine