Bouncy Castle Cryptography Library 1.80 · org.bouncycastle.crypto.engines.SerpentEngineBase

Modifier and Type	Field and Description
protected static final int	BLOCK_SIZE
protected boolean	encrypting
protected int	keyBits
pack-priv static final int	PHI
pack-priv static final int	ROUNDS
protected int[]	wKey

Access	Constructor and Description
pack-priv	SerpentEngineBase()

Method Summary

Modifier and Type	Method and Description
protected abstract void	decryptBlock(byte[] input, int inOff, byte[] output, int outOff)
protected abstract void	encryptBlock(byte[] input, int inOff, byte[] output, int outOff)
public String	getAlgorithmName() Implements org.bouncycastle.crypto.BlockCipher.getAlgorithmName. Return the name of the algorithm the cipher implements.
public int	getBlockSize() Implements org.bouncycastle.crypto.BlockCipher.getBlockSize. Return the block size for this cipher (in bytes).
private CryptoServicePurpose	getPurpose()
protected final void	ib0(int[] X, int a, int b, int c, int d) InvSO - {13, 3,11, 0,10, 6, 5,12, 1,14, 4, 7,15, 9, 8, 2 } - 15 terms.
protected final void	ib1(int[] X, int a, int b, int c, int d) InvS1 - { 5, 8, 2,14,15, 6,12, 3,11, 4, 7, 9, 1,13,10, 0 } - 14 steps.
protected final void	ib2(int[] X, int a, int b, int c, int d) InvS2 - {12, 9,15, 4,11,14, 1, 2, 0, 3, 6,13, 5, 8,10, 7 } - 16 steps.
protected final void	ib3(int[] X, int a, int b, int c, int d) InvS3 - { 0, 9,10, 7,11,14, 6,13, 3, 5,12, 2, 4, 8,15, 1 } - 15 terms
protected final void	ib4(int[] X, int a, int b, int c, int d) InvS4 - { 5, 0, 8, 3,10, 9, 7,14, 2,12,11, 6, 4,15,13, 1 } - 15 terms.
protected final void	ib5(int[] X, int a, int b, int c, int d) InvS5 - { 8,15, 2, 9, 4, 1,13,14,11, 6, 5, 3, 7,12,10, 0 } - 16 terms.
protected final void	ib6(int[] X, int a, int b, int c, int d) InvS6 - {15,10, 1,13, 5, 3, 6, 0, 4, 9,14, 7, 2,12, 8,11 } - 15 terms.
protected final void	ib7(int[] X, int a, int b, int c, int d) InvS7 - { 3, 0, 6,13, 9,14,15, 8, 5,12,11, 7,10, 1, 4, 2 } - 17 terms.
public void	init(boolean whether or not we are for encryption. encrypting, CipherParameters the parameters required to set up the cipher. params) Implements org.bouncycastle.crypto.BlockCipher.init. initialise a Serpent cipher.
protected final void	inverseLT(int[] X) Apply the inverse of the linear transformation to the register set.
protected final void	LT(int[] X) Apply the linear transformation to the register set.
protected abstract int[]	makeWorkingKey(byte[] key)
public final int	Returns: the number of bytes processed and produced. processBlock(byte[] the array containing the input data. in, int offset into the in array the data starts at. inOff, byte[] the array the output data will be copied into. out, int the offset into the out array the output will start at. outOff) Implements org.bouncycastle.crypto.BlockCipher.processBlock. Process one block of input from the array in and write it to the out array.
public void	reset() Implements org.bouncycastle.crypto.BlockCipher.reset. Reset the cipher.
protected static int	rotateLeft(int x, int bits)
protected static int	rotateRight(int x, int bits)
protected final void	sb0(int[] X, int a, int b, int c, int d) S0 - { 3, 8,15, 1,10, 6, 5,11,14,13, 4, 2, 7, 0, 9,12 } - 15 terms.
protected final void	sb1(int[] X, int a, int b, int c, int d) S1 - {15,12, 2, 7, 9, 0, 5,10, 1,11,14, 8, 6,13, 3, 4 } - 14 terms.
protected final void	sb2(int[] X, int a, int b, int c, int d) S2 - { 8, 6, 7, 9, 3,12,10,15,13, 1,14, 4, 0,11, 5, 2 } - 16 terms.
protected final void	sb3(int[] X, int a, int b, int c, int d) S3 - { 0,15,11, 8,12, 9, 6, 3,13, 1, 2, 4,10, 7, 5,14 } - 16 terms.
protected final void	sb4(int[] X, int a, int b, int c, int d) S4 - { 1,15, 8, 3,12, 0,11, 6, 2, 5, 4,10, 9,14, 7,13 } - 15 terms.
protected final void	sb5(int[] X, int a, int b, int c, int d) S5 - {15, 5, 2,11, 4,10, 9,12, 0, 3,14, 8,13, 6, 7, 1 } - 16 terms.
protected final void	sb6(int[] X, int a, int b, int c, int d) S6 - { 7, 2,12, 5, 8, 4, 6,11,14, 9, 1,15,13, 3,10, 0 } - 15 terms.
protected final void	sb7(int[] X, int a, int b, int c, int d) S7 - { 1,13,15, 0,14, 8, 2,11, 7, 4,12,10, 9, 3, 5, 6 } - 16 terms.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

BLOCK_SIZE	back to summary
protected static final int BLOCK_SIZE

encrypting	back to summary
protected boolean encrypting

keyBits	back to summary
protected int keyBits

PHI	back to summary
pack-priv static final int PHI

ROUNDS	back to summary
pack-priv static final int ROUNDS

wKey	back to summary
protected int[] wKey

SerpentEngineBase	back to summary
pack-priv SerpentEngineBase()

Method Detail

decryptBlock	back to summary
protected abstract void decryptBlock(byte[] input, int inOff, byte[] output, int outOff)

encryptBlock	back to summary
protected abstract void encryptBlock(byte[] input, int inOff, byte[] output, int outOff)

getAlgorithmName	back to summary
public String getAlgorithmName() Implements org.bouncycastle.crypto.BlockCipher.getAlgorithmName. Doc from org.bouncycastle.crypto.BlockCipher.getAlgorithmName. Return the name of the algorithm the cipher implements. Returns:String the name of the algorithm the cipher implements.

getAlgorithmName

back to summary

public String getAlgorithmName()

Implements org.bouncycastle.crypto.BlockCipher.getAlgorithmName.

Doc from org.bouncycastle.crypto.BlockCipher.getAlgorithmName.

Return the name of the algorithm the cipher implements.

Returns:String: the name of the algorithm the cipher implements.

getBlockSize	back to summary
public int getBlockSize() Implements org.bouncycastle.crypto.BlockCipher.getBlockSize. Doc from org.bouncycastle.crypto.BlockCipher.getBlockSize. Return the block size for this cipher (in bytes). Returns:int the block size for this cipher in bytes.

getBlockSize

back to summary

public int getBlockSize()

Implements org.bouncycastle.crypto.BlockCipher.getBlockSize.

Doc from org.bouncycastle.crypto.BlockCipher.getBlockSize.

Return the block size for this cipher (in bytes).

Returns:int: the block size for this cipher in bytes.

getPurpose	back to summary
private CryptoServicePurpose getPurpose()

ib0	back to summary
protected final void ib0(int[] X, int a, int b, int c, int d) InvSO - {13, 3,11, 0,10, 6, 5,12, 1,14, 4, 7,15, 9, 8, 2 } - 15 terms.

ib1	back to summary
protected final void ib1(int[] X, int a, int b, int c, int d) InvS1 - { 5, 8, 2,14,15, 6,12, 3,11, 4, 7, 9, 1,13,10, 0 } - 14 steps.

ib2	back to summary
protected final void ib2(int[] X, int a, int b, int c, int d) InvS2 - {12, 9,15, 4,11,14, 1, 2, 0, 3, 6,13, 5, 8,10, 7 } - 16 steps.

ib3	back to summary
protected final void ib3(int[] X, int a, int b, int c, int d) InvS3 - { 0, 9,10, 7,11,14, 6,13, 3, 5,12, 2, 4, 8,15, 1 } - 15 terms

ib4	back to summary
protected final void ib4(int[] X, int a, int b, int c, int d) InvS4 - { 5, 0, 8, 3,10, 9, 7,14, 2,12,11, 6, 4,15,13, 1 } - 15 terms.

ib5	back to summary
protected final void ib5(int[] X, int a, int b, int c, int d) InvS5 - { 8,15, 2, 9, 4, 1,13,14,11, 6, 5, 3, 7,12,10, 0 } - 16 terms.

ib6	back to summary
protected final void ib6(int[] X, int a, int b, int c, int d) InvS6 - {15,10, 1,13, 5, 3, 6, 0, 4, 9,14, 7, 2,12, 8,11 } - 15 terms.

ib7	back to summary
protected final void ib7(int[] X, int a, int b, int c, int d) InvS7 - { 3, 0, 6,13, 9,14,15, 8, 5,12,11, 7,10, 1, 4, 2 } - 17 terms.

init	back to summary
public void init(boolean encrypting, CipherParameters params) Implements org.bouncycastle.crypto.BlockCipher.init. initialise a Serpent cipher. Parameters encrypting:boolean whether or not we are for encryption. params:CipherParameters the parameters required to set up the cipher. Exceptions IllegalArgumentException: if the params argument is inappropriate.

init

back to summary

public void init(boolean encrypting, CipherParameters params)

Implements org.bouncycastle.crypto.BlockCipher.init.

initialise a Serpent cipher.

Parameters

encrypting:boolean: whether or not we are for encryption.
params:CipherParameters: the parameters required to set up the cipher.

Exceptions

IllegalArgumentException:: if the params argument is inappropriate.

inverseLT	back to summary
protected final void inverseLT(int[] X) Apply the inverse of the linear transformation to the register set.

LT	back to summary
protected final void LT(int[] X) Apply the linear transformation to the register set.

makeWorkingKey	back to summary
protected abstract int[] makeWorkingKey(byte[] key)

processBlock	back to summary
public final int processBlock(byte[] in, int inOff, byte[] out, int outOff) Implements org.bouncycastle.crypto.BlockCipher.processBlock. Process one block of input from the array in and write it to the out array. Parameters in:byte[] the array containing the input data. inOff:int offset into the in array the data starts at. out:byte[] the array the output data will be copied into. outOff:int the offset into the out array the output will start at. Returns:int the number of bytes processed and produced. Exceptions DataLengthException: if there isn't enough data in in, or space in out. IllegalStateException: if the cipher isn't initialised.

processBlock

back to summary

public final int processBlock(byte[] in, int inOff, byte[] out, int outOff)

Implements org.bouncycastle.crypto.BlockCipher.processBlock.

Process one block of input from the array in and write it to the out array.

Parameters

in:byte[]: the array containing the input data.
inOff:int: offset into the in array the data starts at.
out:byte[]: the array the output data will be copied into.
outOff:int: the offset into the out array the output will start at.

Returns:int

the number of bytes processed and produced.

Exceptions

DataLengthException:: if there isn't enough data in in, or space in out.
IllegalStateException:: if the cipher isn't initialised.

reset	back to summary
public void reset() Implements org.bouncycastle.crypto.BlockCipher.reset. Doc from org.bouncycastle.crypto.BlockCipher.reset. Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).

reset

back to summary

public void reset()

Implements org.bouncycastle.crypto.BlockCipher.reset.

Doc from org.bouncycastle.crypto.BlockCipher.reset.

Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).

rotateLeft	back to summary
protected static int rotateLeft(int x, int bits)

rotateRight	back to summary
protected static int rotateRight(int x, int bits)

sb0	back to summary
protected final void sb0(int[] X, int a, int b, int c, int d) S0 - { 3, 8,15, 1,10, 6, 5,11,14,13, 4, 2, 7, 0, 9,12 } - 15 terms.

sb1	back to summary
protected final void sb1(int[] X, int a, int b, int c, int d) S1 - {15,12, 2, 7, 9, 0, 5,10, 1,11,14, 8, 6,13, 3, 4 } - 14 terms.

sb2	back to summary
protected final void sb2(int[] X, int a, int b, int c, int d) S2 - { 8, 6, 7, 9, 3,12,10,15,13, 1,14, 4, 0,11, 5, 2 } - 16 terms.

sb3	back to summary
protected final void sb3(int[] X, int a, int b, int c, int d) S3 - { 0,15,11, 8,12, 9, 6, 3,13, 1, 2, 4,10, 7, 5,14 } - 16 terms.

sb4	back to summary
protected final void sb4(int[] X, int a, int b, int c, int d) S4 - { 1,15, 8, 3,12, 0,11, 6, 2, 5, 4,10, 9,14, 7,13 } - 15 terms.

sb5	back to summary
protected final void sb5(int[] X, int a, int b, int c, int d) S5 - {15, 5, 2,11, 4,10, 9,12, 0, 3,14, 8,13, 6, 7, 1 } - 16 terms.

sb6	back to summary
protected final void sb6(int[] X, int a, int b, int c, int d) S6 - { 7, 2,12, 5, 8, 4, 6,11,14, 9, 1,15,13, 3,10, 0 } - 15 terms.

sb7	back to summary
protected final void sb7(int[] X, int a, int b, int c, int d) S7 - { 1,13,15, 0,14, 8, 2,11, 7, 4,12,10, 9, 3, 5, 6 } - 16 terms.

public abstract Class SerpentEngineBase

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