Modifier and Type	Class and Description
private static class	GCMSIVBlockCipher.GCMSIVCache GCMSIVCache.
private class	GCMSIVBlockCipher.GCMSIVHasher Hash Control.

Modifier and Type	Field and Description
private static final byte	ADD The addition constant.
private static final int	AEAD_COMPLETE The aeadComplete flag.
private static final int	BUFLEN The buffer length.
private boolean	forEncryption Are we encrypting?
private static final int	HALFBUFLEN The halfBuffer length.
private static final int	INIT The initialisation flag.
private byte[]	macBlock
private static final byte	MASK The top bit mask.
private static final int	MAX_DATALEN The maximum data length (AEAD/PlainText).
private static final int	NONCELEN The nonce length.
private final GCMSIVBlockCipher.GCMSIVHasher	theAEADHasher The aeadHasher.
private final BlockCipher	theCipher The cipher.
private final GCMSIVBlockCipher.GCMSIVHasher	theDataHasher The dataHasher.
private GCMSIVBlockCipher.GCMSIVCache	theEncData The encryptedDataStream (decryption only).
private int	theFlags The flags.
private final byte[]	theGHash The gHash buffer.
private byte[]	theInitialAEAD The initialAEAD.
private final GCMMultiplier	theMultiplier The multiplier.
private byte[]	theNonce The nonce.
private GCMSIVBlockCipher.GCMSIVCache	thePlain The plainDataStream.
private final byte[]	theReverse The reverse buffer.

Access	Constructor and Description
public	GCMSIVBlockCipher() Constructor.
public	GCMSIVBlockCipher(final BlockCipher the underlying cipher pCipher) Constructor.
public	GCMSIVBlockCipher(final BlockCipher the underlying cipher pCipher, final GCMMultiplier the multiplier pMultiplier) Constructor.

Method Summary

Modifier and Type	Method and Description
private static int	Returns: the length bufLength(final byte[] the buffere pBuffer) Obtain buffer length (allowing for null).
private byte[]	Returns: the calculated tag calculateTag() calculate tag.
private void	checkAEADStatus(final int the aeadLength pLen) check AEAD status.
private static void	checkBuffer(final byte[] the buffer pBuffer, final int the offset pOffset, final int the length pLen, final boolean is this an output buffer? pOutput) Check buffer.
private void	checkStatus(final int the dataLength pLen) check status.
private byte[]	Returns: the calculated value completePolyVal() complete polyVAL.
private void	decryptPlain() decrypt data stream.
private void	deriveKeys(final KeyParameter the keyGeneration key pKey) Derive Keys.
public int	doFinal(final byte[] space for any resulting output data. pOutput, final int offset into out to start copying the data at. pOffset) Implements org.bouncycastle.crypto.modes.AEADCipher.doFinal. Finish the operation either appending or verifying the MAC at the end of the data.
private int	Returns: the length of data encrypted encryptPlain(final byte[] the counter pCounter, final byte[] the target buffer pTarget, final int the target offset pOffset) encrypt data stream.
private static void	fillReverse(final byte[] the input buffer pInput, final int the offset pOffset, final int the length of data (<= BUFLEN) pLength, final byte[] the output buffer pOutput) Byte reverse a buffer.
public String	getAlgorithmName() Implements org.bouncycastle.crypto.modes.AEADCipher.getAlgorithmName. Return the name of the algorithm.
public byte[]	getMac() Implements org.bouncycastle.crypto.modes.AEADCipher.getMac. Return the value of the MAC associated with the last stream processed.
public int	getOutputSize(final int the length of the input. pLen) Implements org.bouncycastle.crypto.modes.AEADCipher.getOutputSize. return the size of the output buffer required for a processBytes plus a doFinal with an input of len bytes.
public BlockCipher	getUnderlyingCipher() Implements org.bouncycastle.crypto.modes.AEADBlockCipher.getUnderlyingCipher. return the `BlockCipher` this object wraps.
public int	getUpdateOutputSize(final int the length of the input. pLen) Implements org.bouncycastle.crypto.modes.AEADCipher.getUpdateOutputSize. return the size of the output buffer required for a processBytes an input of len bytes.
private void	gHASH(final byte[] the next value pNext) perform the next GHASH step.
private void	gHashLengths() process lengths.
private static void	incrementCounter(final byte[] the counter to increment pCounter) increment the counter.
public void	init(final boolean true if we are setting up for encryption, false otherwise. pEncrypt, final CipherParameters the necessary parameters for the underlying cipher to be initialised. cipherParameters) Implements org.bouncycastle.crypto.modes.AEADCipher.init. initialise the underlying cipher.
private static void	mulX(final byte[] the value to adjust pValue) multiply by X.
public void	processAADByte(final byte the byte to be processed. pByte) Implements org.bouncycastle.crypto.modes.AEADCipher.processAADByte. Add a single byte to the associated data check.
public void	processAADBytes(final byte[] the input byte array. pData, final int the offset into the in array where the data to be processed starts. pOffset, final int the number of bytes to be processed. pLen) Implements org.bouncycastle.crypto.modes.AEADCipher.processAADBytes. Add a sequence of bytes to the associated data check.
public int	processByte(final byte the byte to be processed. pByte, final byte[] the output buffer the processed byte goes into. pOutput, final int the offset into the output byte array the processed data starts at. pOutOffset) Implements org.bouncycastle.crypto.modes.AEADCipher.processByte. encrypt/decrypt a single byte.
public int	processBytes(final byte[] the input byte array. pData, final int the offset into the in array where the data to be processed starts. pOffset, final int the number of bytes to be processed. pLen, final byte[] the output buffer the processed bytes go into. pOutput, final int the offset into the output byte array the processed data starts at. pOutOffset) Implements org.bouncycastle.crypto.modes.AEADCipher.processBytes. process a block of bytes from in putting the result into out.
public void	reset() Implements org.bouncycastle.crypto.modes.AEADCipher.reset. Reset the cipher.
private void	resetStreams() Reset Streams.
private static void	xorBlock(final byte[] the left operand and result pLeft, final byte[] the right operand pRight) xor a full block buffer.
private static void	xorBlock(final byte[] the left operand and result pLeft, final byte[] the right operand pRight, final int the offset in the right operand pOffset, final int the length of data in the right operand pLength) xor a partial block buffer.

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

Field Detail

ADD	back to summary
private static final byte ADD The addition constant.

AEAD_COMPLETE	back to summary
private static final int AEAD_COMPLETE The aeadComplete flag.

BUFLEN	back to summary
private static final int BUFLEN The buffer length.

forEncryption	back to summary
private boolean forEncryption Are we encrypting?

HALFBUFLEN	back to summary
private static final int HALFBUFLEN The halfBuffer length.

INIT	back to summary
private static final int INIT The initialisation flag.

macBlock	back to summary
private byte[] macBlock

MASK	back to summary
private static final byte MASK The top bit mask.

MAX_DATALEN	back to summary
private static final int MAX_DATALEN The maximum data length (AEAD/PlainText). Due to implementation constraints this is restricted to the maximum array length (https://programming.guide/java/array-maximum-length.html) minus the BUFLEN to allow for the MAC

NONCELEN	back to summary
private static final int NONCELEN The nonce length.

theAEADHasher	back to summary
private final GCMSIVBlockCipher.GCMSIVHasher theAEADHasher The aeadHasher.

theCipher	back to summary
private final BlockCipher theCipher The cipher.

theDataHasher	back to summary
private final GCMSIVBlockCipher.GCMSIVHasher theDataHasher The dataHasher.

theEncData	back to summary
private GCMSIVBlockCipher.GCMSIVCache theEncData The encryptedDataStream (decryption only).

theFlags	back to summary
private int theFlags The flags.

theGHash	back to summary
private final byte[] theGHash The gHash buffer.

theInitialAEAD	back to summary
private byte[] theInitialAEAD The initialAEAD.

theMultiplier	back to summary
private final GCMMultiplier theMultiplier The multiplier.

theNonce	back to summary
private byte[] theNonce The nonce.

thePlain	back to summary
private GCMSIVBlockCipher.GCMSIVCache thePlain The plainDataStream.

theReverse	back to summary
private final byte[] theReverse The reverse buffer.

Constructor Detail

GCMSIVBlockCipher	back to summary
public GCMSIVBlockCipher() Constructor.

GCMSIVBlockCipher	back to summary
public GCMSIVBlockCipher(final BlockCipher pCipher) Constructor. Parameters pCipher:BlockCipher the underlying cipher

GCMSIVBlockCipher

back to summary

public GCMSIVBlockCipher(final BlockCipher pCipher)

Constructor.

Parameters

pCipher:BlockCipher: the underlying cipher

GCMSIVBlockCipher	back to summary
public GCMSIVBlockCipher(final BlockCipher pCipher, final GCMMultiplier pMultiplier) Constructor. Parameters pCipher:BlockCipher the underlying cipher pMultiplier:GCMMultiplier the multiplier

GCMSIVBlockCipher

back to summary

public GCMSIVBlockCipher(final BlockCipher pCipher, final GCMMultiplier pMultiplier)

Constructor.

Parameters

pCipher:BlockCipher: the underlying cipher
pMultiplier:GCMMultiplier: the multiplier

Method Detail

bufLength	back to summary
private static int bufLength(final byte[] pBuffer) Obtain buffer length (allowing for null). Parameters pBuffer:byte[] the buffere Returns:int the length

bufLength

back to summary

private static int bufLength(final byte[] pBuffer)

Obtain buffer length (allowing for null).

Parameters

pBuffer:byte[]: the buffere

Returns:int

the length

calculateTag	back to summary
private byte[] calculateTag() calculate tag. Returns:byte[] the calculated tag

calculateTag

back to summary

private byte[] calculateTag()

calculate tag.

Returns:byte[]: the calculated tag

checkAEADStatus	back to summary
private void checkAEADStatus(final int pLen) check AEAD status. Parameters pLen:int the aeadLength

checkAEADStatus

back to summary

private void checkAEADStatus(final int pLen)

check AEAD status.

Parameters

pLen:int: the aeadLength

checkBuffer	back to summary
private static void checkBuffer(final byte[] pBuffer, final int pOffset, final int pLen, final boolean pOutput) Check buffer. Parameters pBuffer:byte[] the buffer pOffset:int the offset pLen:int the length pOutput:boolean is this an output buffer?

checkBuffer

back to summary

private static void checkBuffer(final byte[] pBuffer, final int pOffset, final int pLen, final boolean pOutput)

Check buffer.

Parameters

pBuffer:byte[]: the buffer
pOffset:int: the offset
pLen:int: the length
pOutput:boolean: is this an output buffer?

checkStatus	back to summary
private void checkStatus(final int pLen) check status. Parameters pLen:int the dataLength

checkStatus

back to summary

private void checkStatus(final int pLen)

check status.

Parameters

pLen:int: the dataLength

completePolyVal	back to summary
private byte[] completePolyVal() complete polyVAL. Returns:byte[] the calculated value

completePolyVal

back to summary

private byte[] completePolyVal()

complete polyVAL.

Returns:byte[]: the calculated value

decryptPlain	back to summary
private void decryptPlain() throws InvalidCipherTextException decrypt data stream. Exceptions InvalidCipherTextException: on data too short or mac check failed

decryptPlain

back to summary

private void decryptPlain() throws InvalidCipherTextException

decrypt data stream.

Exceptions

InvalidCipherTextException:: on data too short or mac check failed

deriveKeys	back to summary
private void deriveKeys(final KeyParameter pKey) Derive Keys. Parameters pKey:KeyParameter the keyGeneration key

deriveKeys

back to summary

private void deriveKeys(final KeyParameter pKey)

Derive Keys.

Parameters

pKey:KeyParameter: the keyGeneration key

doFinal	back to summary
public int doFinal(final byte[] pOutput, final int pOffset) throws IllegalStateException, InvalidCipherTextException Implements org.bouncycastle.crypto.modes.AEADCipher.doFinal. Doc from org.bouncycastle.crypto.modes.AEADCipher.doFinal. Finish the operation either appending or verifying the MAC at the end of the data. Parameters pOutput:byte[] space for any resulting output data. pOffset:int offset into out to start copying the data at. Returns:int number of bytes written into out. Exceptions IllegalStateException: if the cipher is in an inappropriate state. InvalidCipherTextException: if the MAC fails to match.

doFinal

back to summary

public int doFinal(final byte[] pOutput, final int pOffset) throws IllegalStateException, InvalidCipherTextException

Implements org.bouncycastle.crypto.modes.AEADCipher.doFinal.

Doc from org.bouncycastle.crypto.modes.AEADCipher.doFinal.

Finish the operation either appending or verifying the MAC at the end of the data.

Parameters

pOutput:byte[]: space for any resulting output data.
pOffset:int: offset into out to start copying the data at.

Returns:int

number of bytes written into out.

Exceptions

IllegalStateException:: if the cipher is in an inappropriate state.
InvalidCipherTextException:: if the MAC fails to match.

encryptPlain	back to summary
private int encryptPlain(final byte[] pCounter, final byte[] pTarget, final int pOffset) encrypt data stream. Parameters pCounter:byte[] the counter pTarget:byte[] the target buffer pOffset:int the target offset Returns:int the length of data encrypted

encryptPlain

back to summary

private int encryptPlain(final byte[] pCounter, final byte[] pTarget, final int pOffset)

encrypt data stream.

Parameters

pCounter:byte[]: the counter
pTarget:byte[]: the target buffer
pOffset:int: the target offset

Returns:int

the length of data encrypted

fillReverse	back to summary
private static void fillReverse(final byte[] pInput, final int pOffset, final int pLength, final byte[] pOutput) Byte reverse a buffer. Parameters pInput:byte[] the input buffer pOffset:int the offset pLength:int the length of data (<= BUFLEN) pOutput:byte[] the output buffer

fillReverse

back to summary

private static void fillReverse(final byte[] pInput, final int pOffset, final int pLength, final byte[] pOutput)

Byte reverse a buffer.

Parameters

pInput:byte[]: the input buffer
pOffset:int: the offset
pLength:int: the length of data (<= BUFLEN)
pOutput:byte[]: the output buffer

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

getAlgorithmName

back to summary

public String getAlgorithmName()

Implements org.bouncycastle.crypto.modes.AEADCipher.getAlgorithmName.

Doc from org.bouncycastle.crypto.modes.AEADCipher.getAlgorithmName.

Return the name of the algorithm.

Returns:String: the algorithm name.

getMac	back to summary
public byte[] getMac() Implements org.bouncycastle.crypto.modes.AEADCipher.getMac. Doc from org.bouncycastle.crypto.modes.AEADCipher.getMac. Return the value of the MAC associated with the last stream processed. Returns:byte[] MAC for plaintext data.

getMac

back to summary

public byte[] getMac()

Implements org.bouncycastle.crypto.modes.AEADCipher.getMac.

Doc from org.bouncycastle.crypto.modes.AEADCipher.getMac.

Return the value of the MAC associated with the last stream processed.

Returns:byte[]: MAC for plaintext data.

getOutputSize back to summary

getOutputSize	back to summary
public int getOutputSize(final int pLen) Implements org.bouncycastle.crypto.modes.AEADCipher.getOutputSize. Doc from org.bouncycastle.crypto.modes.AEADCipher.getOutputSize. return the size of the output buffer required for a processBytes plus a doFinal with an input of len bytes. The returned size may be dependent on the initialisation of this cipher and may not be accurate once subsequent input data is processed - this method should be invoked immediately prior to a call to final processing of input data and a call to `doFinal(byte[], int)`. Parameters pLen:int the length of the input. Returns:int the space required to accommodate a call to processBytes and doFinal with len bytes of input.

public int getOutputSize(final int pLen)

Implements org.bouncycastle.crypto.modes.AEADCipher.getOutputSize.

Doc from org.bouncycastle.crypto.modes.AEADCipher.getOutputSize.

return the size of the output buffer required for a processBytes plus a doFinal with an input of len bytes.

The returned size may be dependent on the initialisation of this cipher and may not be accurate once subsequent input data is processed - this method should be invoked immediately prior to a call to final processing of input data and a call to doFinal(byte[], int).

Parameters

pLen:int: the length of the input.

Returns:int

the space required to accommodate a call to processBytes and doFinal with len bytes of input.

getUnderlyingCipher back to summary

getUnderlyingCipher	back to summary
public BlockCipher getUnderlyingCipher() Implements org.bouncycastle.crypto.modes.AEADBlockCipher.getUnderlyingCipher. Doc from org.bouncycastle.crypto.modes.AEADBlockCipher.getUnderlyingCipher. return the `BlockCipher` this object wraps. Returns:BlockCipher the `BlockCipher` this object wraps.

public BlockCipher getUnderlyingCipher()

Implements org.bouncycastle.crypto.modes.AEADBlockCipher.getUnderlyingCipher.

Doc from org.bouncycastle.crypto.modes.AEADBlockCipher.getUnderlyingCipher.

return the BlockCipher this object wraps.

Returns:BlockCipher: the BlockCipher this object wraps.

getUpdateOutputSize	back to summary
public int getUpdateOutputSize(final int pLen) Implements org.bouncycastle.crypto.modes.AEADCipher.getUpdateOutputSize. Doc from org.bouncycastle.crypto.modes.AEADCipher.getUpdateOutputSize. return the size of the output buffer required for a processBytes an input of len bytes. The returned size may be dependent on the initialisation of this cipher and may not be accurate once subsequent input data is processed - this method should be invoked immediately prior to input data being processed. Parameters pLen:int the length of the input. Returns:int the space required to accommodate a call to processBytes with len bytes of input.

getUpdateOutputSize

back to summary

public int getUpdateOutputSize(final int pLen)

Implements org.bouncycastle.crypto.modes.AEADCipher.getUpdateOutputSize.

Doc from org.bouncycastle.crypto.modes.AEADCipher.getUpdateOutputSize.

return the size of the output buffer required for a processBytes an input of len bytes.

Parameters

pLen:int: the length of the input.

Returns:int

the space required to accommodate a call to processBytes with len bytes of input.

gHASH	back to summary
private void gHASH(final byte[] pNext) perform the next GHASH step. Parameters pNext:byte[] the next value

gHASH

back to summary

private void gHASH(final byte[] pNext)

perform the next GHASH step.

Parameters

pNext:byte[]: the next value

gHashLengths	back to summary
private void gHashLengths() process lengths.

incrementCounter	back to summary
private static void incrementCounter(final byte[] pCounter) increment the counter. Parameters pCounter:byte[] the counter to increment

incrementCounter

back to summary

private static void incrementCounter(final byte[] pCounter)

increment the counter.

Parameters

pCounter:byte[]: the counter to increment

init	back to summary
public void init(final boolean pEncrypt, final CipherParameters cipherParameters) throws IllegalArgumentException Implements org.bouncycastle.crypto.modes.AEADCipher.init. Doc from org.bouncycastle.crypto.modes.AEADCipher.init. initialise the underlying cipher. Parameter can either be an AEADParameters or a ParametersWithIV object. Parameters pEncrypt:boolean true if we are setting up for encryption, false otherwise. cipherParameters:CipherParameters the necessary parameters for the underlying cipher to be initialised. Exceptions IllegalArgumentException: if the params argument is inappropriate.

init

back to summary

public void init(final boolean pEncrypt, final CipherParameters cipherParameters) throws IllegalArgumentException

Implements org.bouncycastle.crypto.modes.AEADCipher.init.

Doc from org.bouncycastle.crypto.modes.AEADCipher.init.

initialise the underlying cipher. Parameter can either be an AEADParameters or a ParametersWithIV object.

Parameters

pEncrypt:boolean: true if we are setting up for encryption, false otherwise.
cipherParameters:CipherParameters: the necessary parameters for the underlying cipher to be initialised.

Exceptions

IllegalArgumentException:: if the params argument is inappropriate.

mulX	back to summary
private static void mulX(final byte[] pValue) multiply by X. Parameters pValue:byte[] the value to adjust

mulX

back to summary

private static void mulX(final byte[] pValue)

multiply by X.

Parameters

pValue:byte[]: the value to adjust

processAADByte	back to summary
public void processAADByte(final byte pByte) Implements org.bouncycastle.crypto.modes.AEADCipher.processAADByte. Doc from org.bouncycastle.crypto.modes.AEADCipher.processAADByte. Add a single byte to the associated data check. If the implementation supports it, this will be an online operation and will not retain the associated data. Parameters pByte:byte the byte to be processed.

processAADByte

back to summary

public void processAADByte(final byte pByte)

Implements org.bouncycastle.crypto.modes.AEADCipher.processAADByte.

Doc from org.bouncycastle.crypto.modes.AEADCipher.processAADByte.

Add a single byte to the associated data check.
If the implementation supports it, this will be an online operation and will not retain the associated data.

Parameters

pByte:byte: the byte to be processed.

processAADBytes

back to summary

public void processAADBytes(final byte[] pData, final int pOffset, final int pLen)

Implements org.bouncycastle.crypto.modes.AEADCipher.processAADBytes.

Doc from org.bouncycastle.crypto.modes.AEADCipher.processAADBytes.

Add a sequence of bytes to the associated data check.
If the implementation supports it, this will be an online operation and will not retain the associated data.

Parameters

pData:byte[]: the input byte array.
pOffset:int: the offset into the in array where the data to be processed starts.
pLen:int: the number of bytes to be processed.

processByte

back to summary

public int processByte(final byte pByte, final byte[] pOutput, final int pOutOffset) throws DataLengthException

Implements org.bouncycastle.crypto.modes.AEADCipher.processByte.

Doc from org.bouncycastle.crypto.modes.AEADCipher.processByte.

encrypt/decrypt a single byte.

Parameters

pByte:byte: the byte to be processed.
pOutput:byte[]: the output buffer the processed byte goes into.
pOutOffset:int: the offset into the output byte array the processed data starts at.

Returns:int

the number of bytes written to out.

Exceptions

DataLengthException:: if the output buffer is too small.

processBytes

back to summary

public int processBytes(final byte[] pData, final int pOffset, final int pLen, final byte[] pOutput, final int pOutOffset) throws DataLengthException

Implements org.bouncycastle.crypto.modes.AEADCipher.processBytes.

Doc from org.bouncycastle.crypto.modes.AEADCipher.processBytes.

process a block of bytes from in putting the result into out.

Parameters

pData:byte[]: the input byte array.
pOffset:int: the offset into the in array where the data to be processed starts.
pLen:int: the number of bytes to be processed.
pOutput:byte[]: the output buffer the processed bytes go into.
pOutOffset:int: the offset into the output byte array the processed data starts at.

Returns:int

the number of bytes written to out.

Exceptions

DataLengthException:: if the output buffer is too small.

reset

back to summary

public void reset()

Implements org.bouncycastle.crypto.modes.AEADCipher.reset.

Doc from org.bouncycastle.crypto.modes.AEADCipher.reset.

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

resetStreams	back to summary
private void resetStreams() Reset Streams.

xorBlock

back to summary

private static void xorBlock(final byte[] pLeft, final byte[] pRight)

xor a full block buffer.

Parameters

pLeft:byte[]: the left operand and result
pRight:byte[]: the right operand

xorBlock

back to summary

private static void xorBlock(final byte[] pLeft, final byte[] pRight, final int pOffset, final int pLength)

xor a partial block buffer.

Parameters

pLeft:byte[]: the left operand and result
pRight:byte[]: the right operand
pOffset:int: the offset in the right operand
pLength:int: the length of data in the right operand

org.bouncycastle.crypto.modes back to summary

private Class GCMSIVBlockCipher.GCMSIVCache

Class Inheritance

extends ByteArrayOutputStream

java.lang.Object
java.io.OutputStream
java.io.ByteArrayOutputStream
org.bouncycastle.crypto.modes.GCMSIVBlockCipher.GCMSIVCache

GCMSIVCache.

Field Summary

Inherited from java.io.ByteArrayOutputStream:: buf count

Constructor Summary

Access	Constructor and Description
pack-priv	GCMSIVCache() Constructor.

Method Summary

Modifier and Type	Method and Description
pack-priv void	clearBuffer() Clear the buffer.
pack-priv byte[]	Returns: the buffer getBuffer() Obtain the buffer.

Inherited from java.io.ByteArrayOutputStream:: close reset size toByteArray toString toString toString toString write write writeBytes writeTo

Constructor Detail

GCMSIVCache	back to summary
pack-priv GCMSIVCache() Constructor.

Method Detail

clearBuffer	back to summary
pack-priv void clearBuffer() Clear the buffer.

getBuffer

back to summary

pack-priv byte[] getBuffer()

Obtain the buffer.

Returns:byte[]: the buffer

org.bouncycastle.crypto.modes back to summary

private Class GCMSIVBlockCipher.GCMSIVHasher

Class Inheritance

extends Object

java.lang.Object
org.bouncycastle.crypto.modes.GCMSIVBlockCipher.GCMSIVHasher

Hash Control.

Field Summary

Modifier and Type	Field and Description
private int	numActive Count of active bytes in cache.
private long	numHashed Count of hashed bytes.
private final byte[]	theBuffer Cache.
private final byte[]	theByte Single byte cache.

Constructor Summary

Access	Constructor and Description
private	GCMSIVHasher()

Method Summary

Modifier and Type	Method and Description
pack-priv void	completeHash() complete hash.
pack-priv long	Returns: the count getBytesProcessed() Obtain the count of bytes hashed.
pack-priv void	reset() Reset the hasher.
pack-priv void	updateHash(final byte the byte pByte) update hash.
pack-priv void	updateHash(final byte[] the buffer pBuffer, final int the offset within the buffer pOffset, final int the length of data pLen) update hash.

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

Field Detail

numActive	back to summary
private int numActive Count of active bytes in cache.

numHashed	back to summary
private long numHashed Count of hashed bytes.

theBuffer	back to summary
private final byte[] theBuffer Cache.

theByte	back to summary
private final byte[] theByte Single byte cache.

Constructor Detail

GCMSIVHasher	back to summary
private GCMSIVHasher()

Method Detail

completeHash	back to summary
pack-priv void completeHash() complete hash.

getBytesProcessed

back to summary

pack-priv long getBytesProcessed()

Obtain the count of bytes hashed.

Returns:long: the count

reset	back to summary
pack-priv void reset() Reset the hasher.

updateHash

back to summary

pack-priv void updateHash(final byte pByte)

update hash.

Parameters

pByte:byte: the byte

updateHash

back to summary

pack-priv void updateHash(final byte[] pBuffer, final int pOffset, final int pLen)

update hash.

Parameters

pBuffer:byte[]: the buffer
pOffset:int: the offset within the buffer
pLen:int: the length of data

public Class GCMSIVBlockCipher

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class GCMSIVBlockCipher.GCMSIVCache

Field Summary

Constructor Summary

Method Summary

Constructor Detail

Method Detail

private Class GCMSIVBlockCipher.GCMSIVHasher

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail