Top Description Inners Fields Constructors Methods
org.bouncycastle.crypto.engines

public Class SparkleEngine

extends AEADBufferBaseEngine
Class Inheritance
Imports
org.bouncycastle.crypto.digests.SparkleDigest, org.bouncycastle.util.Integers, .Pack
Sparkle v1.2, based on the current round 3 submission, https://sparkle-lwc.github.io/ Reference C implementation: https://github.com/cryptolu/sparkle

Specification

https://csrc.nist.gov/CSRC/media/Projects/lightweight-cryptography/documents/finalist-round/updated-spec-doc/sparkle-spec-final.pdf

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static enum
SparkleEngine.SparkleParameters

Field Summary

Modifier and TypeField and Description
private final int
_A0

private final int
_A1

private final int
_M2

private final int
_M3

private final int
CAP_MASK

private boolean
encrypted

private final int[]
k

private final int
KEY_WORDS

private final int
m_bufferSizeDecrypt

private final int[]
npub

private final int
RATE_WORDS

private static final int[]
RCON

private final int
SPARKLE_STEPS_BIG

private final int
SPARKLE_STEPS_SLIM

private final int[]
state

private final int
STATE_WORDS

private final int
TAG_WORDS

Inherited from org.bouncycastle.crypto.engines.AEADBufferBaseEngine:
AADBufferSizeaadFinishedBlockSizeinitialisedm_aadm_aadPosm_bufm_bufPosm_state

Constructor Summary

AccessConstructor and Description
public
SparkleEngine(SparkleEngine.SparkleParameters sparkleParameters)

Method Summary

Modifier and TypeMethod and Description
private static int
ELL(int x)

protected void
init(byte[] key, byte[] iv)

Implements abstract org.bouncycastle.crypto.engines.AEADBaseEngine.init.

protected void
processBuffer(byte[] input, int inOff, byte[] output, int outOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processBuffer.

protected void
processBufferAAD(byte[] buffer, int bufOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processBufferAAD.

private void
processBufferDecrypt(byte[] buffer, int bufOff, byte[] output, int outOff)

private void
processBufferEncrypt(byte[] buffer, int bufOff, byte[] output, int outOff)

protected void
processFinalAAD()

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processFinalAAD.

protected void
processFinalBlock(byte[] output, int outOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processFinalBlock.

protected void
reset(boolean clearMac)

Overrides org.bouncycastle.crypto.engines.AEADBaseEngine.reset.

private static void
sparkle_opt(int[] state, int steps)

pack-priv static void
sparkle_opt12(int[] state, int steps)

public static void
sparkle_opt12(SparkleDigest.Friend friend, int[] state, int steps)

pack-priv static void
sparkle_opt16(int[] state, int steps)

public static void
sparkle_opt16(SparkleDigest.Friend friend, int[] state, int steps)

pack-priv static void
sparkle_opt8(int[] state, int steps)

Inherited from org.bouncycastle.crypto.engines.AEADBufferBaseEngine:
bufferResetcheckAADcheckDatadoFinalgetBlockSizegetOutputSizegetUpdateOutputSizeprocessAADByteprocessAADBytesprocessBytesvalidateAndProcessBuffer

Field Detail

_A0back to summary
private final int _A0
_A1back to summary
private final int _A1
_M2back to summary
private final int _M2
_M3back to summary
private final int _M3
CAP_MASKback to summary
private final int CAP_MASK
encryptedback to summary
private boolean encrypted
kback to summary
private final int[] k
KEY_WORDSback to summary
private final int KEY_WORDS
m_bufferSizeDecryptback to summary
private final int m_bufferSizeDecrypt
npubback to summary
private final int[] npub
RATE_WORDSback to summary
private final int RATE_WORDS
RCONback to summary
private static final int[] RCON
SPARKLE_STEPS_BIGback to summary
private final int SPARKLE_STEPS_BIG
SPARKLE_STEPS_SLIMback to summary
private final int SPARKLE_STEPS_SLIM
stateback to summary
private final int[] state
STATE_WORDSback to summary
private final int STATE_WORDS
TAG_WORDSback to summary
private final int TAG_WORDS

Constructor Detail

SparkleEngineback to summary
public SparkleEngine(SparkleEngine.SparkleParameters sparkleParameters)

Method Detail

ELLback to summary
private static int ELL(int x)
initback to summary
protected void init(byte[] key, byte[] iv) throws IllegalArgumentException

Implements abstract org.bouncycastle.crypto.engines.AEADBaseEngine.init.

processBufferback to summary
protected void processBuffer(byte[] input, int inOff, byte[] output, int outOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processBuffer.

Annotations
@Override
processBufferAADback to summary
protected void processBufferAAD(byte[] buffer, int bufOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processBufferAAD.

processBufferDecryptback to summary
private void processBufferDecrypt(byte[] buffer, int bufOff, byte[] output, int outOff)
processBufferEncryptback to summary
private void processBufferEncrypt(byte[] buffer, int bufOff, byte[] output, int outOff)
processFinalAADback to summary
protected void processFinalAAD()

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processFinalAAD.

processFinalBlockback to summary
protected void processFinalBlock(byte[] output, int outOff)

Implements abstract org.bouncycastle.crypto.engines.AEADBufferBaseEngine.processFinalBlock.

Annotations
@Override
resetback to summary
protected void reset(boolean clearMac)

Overrides org.bouncycastle.crypto.engines.AEADBaseEngine.reset.

sparkle_optback to summary
private static void sparkle_opt(int[] state, int steps)
sparkle_opt12back to summary
pack-priv static void sparkle_opt12(int[] state, int steps)
sparkle_opt12back to summary
public static void sparkle_opt12(SparkleDigest.Friend friend, int[] state, int steps)
sparkle_opt16back to summary
pack-priv static void sparkle_opt16(int[] state, int steps)
sparkle_opt16back to summary
public static void sparkle_opt16(SparkleDigest.Friend friend, int[] state, int steps)
sparkle_opt8back to summary
pack-priv static void sparkle_opt8(int[] state, int steps)
org.bouncycastle.crypto.engines back to summary

public final Enum SparkleEngine.SparkleParameters

extends Enum<SparkleEngine.SparkleParameters>
Class Inheritance

Field Summary

Modifier and TypeField and Description
public static final SparkleEngine.SparkleParameters
SCHWAEMM128_128

public static final SparkleEngine.SparkleParameters
SCHWAEMM192_192

public static final SparkleEngine.SparkleParameters
SCHWAEMM256_128

public static final SparkleEngine.SparkleParameters
SCHWAEMM256_256

Constructor Summary

AccessConstructor and Description
private
SparkleParameters()

Method Summary

Modifier and TypeMethod and Description
public static SparkleEngine.SparkleParameters
valueOf(String name)

public static SparkleEngine.SparkleParameters[]
values()

Inherited from java.lang.Enum:
clonecompareTodescribeConstableequalsfinalizegetDeclaringClasshashCodenameordinaltoStringvalueOf

Field Detail

SCHWAEMM128_128back to summary
public static final SparkleEngine.SparkleParameters SCHWAEMM128_128
SCHWAEMM192_192back to summary
public static final SparkleEngine.SparkleParameters SCHWAEMM192_192
SCHWAEMM256_128back to summary
public static final SparkleEngine.SparkleParameters SCHWAEMM256_128
SCHWAEMM256_256back to summary
public static final SparkleEngine.SparkleParameters SCHWAEMM256_256

Constructor Detail

SparkleParametersback to summary
private SparkleParameters()

Method Detail

valueOfback to summary
public static SparkleEngine.SparkleParameters valueOf(String name)
valuesback to summary
public static SparkleEngine.SparkleParameters[] values()