Bouncy Castle Cryptography Library 1.80 · org.bouncycastle.pqc.legacy.crypto.gmss.GMSSRootSig

Field Summary

Modifier and Type	Field and Description
private long	big8 variables for storing big numbers for the actual status of distributed signing
private int	checksum The checksum part
private int	counter Some variables for storing the actual status of distributed signing
private GMSSRandom	gmssRandom The source of randomness for OTS private key generation
private byte[]	hash The message bytes
private int	height The height of the tree
private int	ii Some variables for storing the actual status of distributed signing
private int	k Some precalculated values
private int	keysize The length of the message digest and private key
private int	mdsize The length of the message digest and private key
private int	messagesize Sizes of the message
private Digest	messDigestOTS The hash function used by the OTS
private byte[]	privateKeyOTS The private key
private int	r Some variables for storing the actual status of distributed signing
private byte[]	seed The current intern OTSseed
private byte[]	sign The signature bytes
private int	steps The necessary steps of each updateSign() call
private int	test Some variables for storing the actual status of distributed signing
private long	test8 variables for storing big numbers for the actual status of distributed signing
private int	w The Winternitz parameter

Constructor Summary

Access	Constructor and Description
public	GMSSRootSig(Digest an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers digest, byte[][] status byte array statByte, int[] status int array statInt) This constructor regenerates a prior GMSSRootSig object used by the GMSSPrivateKeyASN.1 class
public	GMSSRootSig(Digest an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers digest, int the winternitz parameter w, int the heigth of the tree height) The constructor generates the PRNG and initializes some variables

Method Summary

Modifier and Type	Method and Description
public int	Returns: The least integer greater or equal to the logarithm to the base 2 of `intValue` getLog(int an integer intValue) This method returns the least integer that is greater or equal to the logarithm to the base 2 of an integer `intValue`.
public byte[]	Returns: The private OTS key getSig()
public byte[][]	Returns: statBytes getStatByte() This method returns the status byte array
public int[]	Returns: statInt getStatInt() This method returns the status int array
public byte[]	getStatLong() Converts the long parameters into byte arrays to store it in statByte-Array
public void	initSign(byte[] the initial OTSseed seed0, byte[] the massage which will be signed message) This method initializes the distributed sigature calculation.
private void	Returns: The one-time signature of the message, generated step by step oneStep()
public String	Returns: a string representation of the instance toString() Overrides java.lang.Object.toString. returns a string representation of the instance
public boolean	Returns: true if signature is generated completly, else false updateSign() This Method performs `steps` steps of distributed signature calculaion

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

Field Detail

big8	back to summary
private long big8 variables for storing big numbers for the actual status of distributed signing

checksum	back to summary
private int checksum The checksum part

counter	back to summary
private int counter Some variables for storing the actual status of distributed signing

gmssRandom	back to summary
private GMSSRandom gmssRandom The source of randomness for OTS private key generation

hash	back to summary
private byte[] hash The message bytes

height	back to summary
private int height The height of the tree

ii	back to summary
private int ii Some variables for storing the actual status of distributed signing

k	back to summary
private int k Some precalculated values

keysize	back to summary
private int keysize The length of the message digest and private key

mdsize	back to summary
private int mdsize The length of the message digest and private key

messagesize	back to summary
private int messagesize Sizes of the message

messDigestOTS	back to summary
private Digest messDigestOTS The hash function used by the OTS

privateKeyOTS	back to summary
private byte[] privateKeyOTS The private key

r	back to summary
private int r Some variables for storing the actual status of distributed signing

seed	back to summary
private byte[] seed The current intern OTSseed

sign	back to summary
private byte[] sign The signature bytes

steps	back to summary
private int steps The necessary steps of each updateSign() call

test	back to summary
private int test Some variables for storing the actual status of distributed signing

test8	back to summary
private long test8 variables for storing big numbers for the actual status of distributed signing

w	back to summary
private int w The Winternitz parameter

Constructor Detail

GMSSRootSig	back to summary
public GMSSRootSig(Digest digest, byte[][] statByte, int[] statInt) This constructor regenerates a prior GMSSRootSig object used by the GMSSPrivateKeyASN.1 class Parameters digest:Digest an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers statByte:byte[][] status byte array statInt:int[] status int array

GMSSRootSig

back to summary

public GMSSRootSig(Digest digest, byte[][] statByte, int[] statInt)

This constructor regenerates a prior GMSSRootSig object used by the GMSSPrivateKeyASN.1 class

Parameters

digest:Digest: an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers
statByte:byte[][]: status byte array
statInt:int[]: status int array

GMSSRootSig	back to summary
public GMSSRootSig(Digest digest, int w, int height) The constructor generates the PRNG and initializes some variables Parameters digest:Digest an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers w:int the winternitz parameter height:int the heigth of the tree

GMSSRootSig

back to summary

public GMSSRootSig(Digest digest, int w, int height)

The constructor generates the PRNG and initializes some variables

Parameters

digest:Digest: an array of strings, containing the digest of the used hash function, the digest of the PRGN and the names of the corresponding providers
w:int: the winternitz parameter
height:int: the heigth of the tree

Method Detail

getLog back to summary

getLog	back to summary
public int getLog(int intValue) This method returns the least integer that is greater or equal to the logarithm to the base 2 of an integer `intValue`. Parameters intValue:int an integer Returns:int The least integer greater or equal to the logarithm to the base 2 of `intValue`

public int getLog(int intValue)

This method returns the least integer that is greater or equal to the logarithm to the base 2 of an integer intValue.

Parameters

intValue:int: an integer

Returns:int

The least integer greater or equal to the logarithm to the base 2 of intValue

getSig	back to summary
public byte[] getSig() Returns:byte[] The private OTS key

getStatByte	back to summary
public byte[][] getStatByte() This method returns the status byte array Returns:byte[][] statBytes

getStatByte

back to summary

public byte[][] getStatByte()

This method returns the status byte array

Returns:byte[][]: statBytes

getStatInt	back to summary
public int[] getStatInt() This method returns the status int array Returns:int[] statInt

getStatInt

back to summary

public int[] getStatInt()

This method returns the status int array

Returns:int[]: statInt

getStatLong	back to summary
public byte[] getStatLong() Converts the long parameters into byte arrays to store it in statByte-Array

initSign	back to summary
public void initSign(byte[] seed0, byte[] message) This method initializes the distributed sigature calculation. Variables are reseted and necessary steps are calculated Parameters seed0:byte[] the initial OTSseed message:byte[] the massage which will be signed

initSign

back to summary

public void initSign(byte[] seed0, byte[] message)

This method initializes the distributed sigature calculation. Variables are reseted and necessary steps are calculated

Parameters

seed0:byte[]: the initial OTSseed
message:byte[]: the massage which will be signed

oneStep	back to summary
private void oneStep() Returns:void The one-time signature of the message, generated step by step

toString	back to summary
public String toString() Overrides java.lang.Object.toString. returns a string representation of the instance Returns:String a string representation of the instance

toString

back to summary

public String toString()

Overrides java.lang.Object.toString.

returns a string representation of the instance

Returns:String: a string representation of the instance

updateSign back to summary

updateSign	back to summary
public boolean updateSign() This Method performs `steps` steps of distributed signature calculaion Returns:boolean true if signature is generated completly, else false

public boolean updateSign()

This Method performs steps steps of distributed signature calculaion

Returns:boolean: true if signature is generated completly, else false

public Class GMSSRootSig

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail