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

Field Summary

Modifier and Type	Field and Description
private byte[][][]	currentAuthPaths
private Vector<E>[][]	currentRetain
private byte[][]	currentRootSig
private byte[][]	currentSeeds
private Vector<E>[]	currentStack
private Treehash[][]	currentTreehash
private GMSSDigestProvider	digestProvider
private GMSSParameters	gmssPS
private GMSSRandom	gmssRandom The PRNG used for private key generation
private int[]	heightOfTrees An array of the heights of the authentication trees of each layer
private int[]	index
private int[]	K The parameter K needed for the authentication path computation
private byte[][][]	keep
private int	mdLength The message digest length
private Digest	messDigestTrees The hash function used to construct the authentication trees
private int[]	minTreehash
private byte[][][]	nextAuthPaths
private GMSSLeaf[]	nextNextLeaf
private GMSSRootCalc[]	nextNextRoot
private byte[][]	nextNextSeeds
private Vector<E>[][]	nextRetain
private byte[][]	nextRoot
private GMSSRootSig[]	nextRootSig
private Vector<E>[]	nextStack
private Treehash[][]	nextTreehash
private int	numLayer the number of Layers
private int[]	numLeafs The number of leafs of one tree of each layer
private int[]	otsIndex An array of the Winternitz parameter 'w' of each layer
private GMSSLeaf[]	upperLeaf
private GMSSLeaf[]	upperTreehashLeaf
private boolean	used

Constructor Summary

Access	Constructor and Description
public	GMSSPrivateKeyParameters(byte[][] seed for the generation of private OTS keys for the current subtrees currentSeed, byte[][] seed for the generation of private OTS keys for the next subtrees nextNextSeed, byte[][][] array of current authentication paths currentAuthPath, byte[][][] array of next authentication paths nextAuthPath, Treehash[][] array of current treehash instances currentTreehash, Treehash[][] array of next treehash instances nextTreehash, Vector<E>[] array of current shared stacks currentStack, Vector<E>[] array of next shared stacks nextStack, Vector<E>[][] array of current retain stacks currentRetain, Vector<E>[][] array of next retain stacks nextRetain, byte[][] the roots of the next subtree nextRoot, byte[][] array of signatures of the roots of the current subtrees currentRootSig, GMSSParameters the GMSS Parameterset gmssParameterset, GMSSDigestProvider digestProvider) Generates a new GMSS private key
public	GMSSPrivateKeyParameters(int[] tree indices index, byte[][] currentSeeds, byte[][] nextNextSeeds, byte[][][] currentAuthPaths, byte[][][] nextAuthPaths, byte[][][] keep array for the authPath algorithm keep, Treehash[][] treehash for authPath algorithm of current tree currentTreehash, Treehash[][] treehash for authPath algorithm of next tree (TREE+) nextTreehash, Vector<E>[] shared stack for authPath algorithm of current tree currentStack, Vector<E>[] shared stack for authPath algorithm of next tree (TREE+) nextStack, Vector<E>[][] retain stack for authPath algorithm of current tree currentRetain, Vector<E>[][] retain stack for authPath algorithm of next tree (TREE+) nextRetain, GMSSLeaf[] array of upcoming leafs of the tree after next (LEAF++) of each layer nextNextLeaf, GMSSLeaf[] needed for precomputation of upper nodes upperLeaf, GMSSLeaf[] needed for precomputation of upper treehash nodes upperTreehashLeaf, int[] index of next treehash instance to receive an update minTreehash, byte[][] the roots of the next trees (ROOT+) nextRoot, GMSSRootCalc[] the roots of the tree after next (ROOT++) nextNextRoot, byte[][] array of signatures of the roots of the current subtrees (SIG) currentRootSig, GMSSRootSig[] array of signatures of the roots of the next subtree (SIG+) nextRootSig, GMSSParameters the GMSS Parameterset gmssParameterset, GMSSDigestProvider digestProvider) /**
private	GMSSPrivateKeyParameters(GMSSPrivateKeyParameters original)

Method Summary

Modifier and Type	Method and Description
private void	computeAuthPaths(int the actual layer layer) Computes the upcoming currentAuthpath of layer `layer` using the revisited authentication path computation of Dahmen/Schneider 2008
public byte[][][]	getCurrentAuthPaths()
public byte[][]	getCurrentSeeds()
public int[]	getIndex()
public int	Returns: The current index of layer i getIndex(int i)
private int	Returns: index of the treehash instance that should get the update getMinTreehashIndex(int the layer of the GMSS tree layer) This method returns the index of the next Treehash instance that should receive an update
public GMSSDigestProvider	getName()
public int	Returns: The number of leafs of each tree of layer i getNumLeafs(int i)
public byte[]	Returns: The one-time signature of the root of the current subtree getSubtreeRootSig(int i)
private int	Returns: The largest `h` with `2^h \| Phi` if `Phi!=0` else return `-1` heightOfPhi(int the leaf index Phi) Returns the largest h such that 2^h \| Phi
public boolean	isUsed()
public void	markUsed()
public GMSSPrivateKeyParameters	nextKey()
private void	nextKey(int the layer where the next key is processed layer) This method updates the GMSS private key for the next signature
private void	nextTree(int the layer where the next tree is processed layer) Switch to next subtree if the current one is depleted
private void	updateKey(int layer) This method computes the authpath (AUTH) for the current tree, Additionally the root signature for the next tree (SIG+), the authpath (AUTH++) and root (ROOT++) for the tree after next in layer `layer`, and the LEAF++^1 for the next next tree in the layer above are updated This method is used by nextKey()
private void	updateNextNextAuthRoot(int layer) Updates the authentication path and root calculation for the tree after next (AUTH++, ROOT++) in layer `layer`

Inherited from org.bouncycastle.pqc.legacy.crypto.gmss.GMSSKeyParameters:: getParameters

Field Detail

currentAuthPaths	back to summary
private byte[][][] currentAuthPaths

currentRetain	back to summary
private Vector<E>[][] currentRetain

currentRootSig	back to summary
private byte[][] currentRootSig

currentSeeds	back to summary
private byte[][] currentSeeds

currentStack	back to summary
private Vector<E>[] currentStack

currentTreehash	back to summary
private Treehash[][] currentTreehash

digestProvider	back to summary
private GMSSDigestProvider digestProvider

gmssPS	back to summary
private GMSSParameters gmssPS

gmssRandom	back to summary
private GMSSRandom gmssRandom The PRNG used for private key generation

heightOfTrees	back to summary
private int[] heightOfTrees An array of the heights of the authentication trees of each layer

index	back to summary
private int[] index

K	back to summary
private int[] K The parameter K needed for the authentication path computation

keep	back to summary
private byte[][][] keep

mdLength	back to summary
private int mdLength The message digest length

messDigestTrees	back to summary
private Digest messDigestTrees The hash function used to construct the authentication trees

minTreehash	back to summary
private int[] minTreehash

nextAuthPaths	back to summary
private byte[][][] nextAuthPaths

nextNextLeaf	back to summary
private GMSSLeaf[] nextNextLeaf

nextNextRoot	back to summary
private GMSSRootCalc[] nextNextRoot

nextNextSeeds	back to summary
private byte[][] nextNextSeeds

nextRetain	back to summary
private Vector<E>[][] nextRetain

nextRoot	back to summary
private byte[][] nextRoot

nextRootSig	back to summary
private GMSSRootSig[] nextRootSig

nextStack	back to summary
private Vector<E>[] nextStack

nextTreehash	back to summary
private Treehash[][] nextTreehash

numLayer	back to summary
private int numLayer the number of Layers

numLeafs	back to summary
private int[] numLeafs The number of leafs of one tree of each layer

otsIndex	back to summary
private int[] otsIndex An array of the Winternitz parameter 'w' of each layer

upperLeaf	back to summary
private GMSSLeaf[] upperLeaf

upperTreehashLeaf	back to summary
private GMSSLeaf[] upperTreehashLeaf

used	back to summary
private boolean used

Constructor Detail

GMSSPrivateKeyParameters back to summary

GMSSPrivateKeyParameters	back to summary
public GMSSPrivateKeyParameters(byte[][] currentSeed, byte[][] nextNextSeed, byte[][][] currentAuthPath, byte[][][] nextAuthPath, Treehash[][] currentTreehash, Treehash[][] nextTreehash, Vector<E>[] currentStack, Vector<E>[] nextStack, Vector<E>[][] currentRetain, Vector<E>[][] nextRetain, byte[][] nextRoot, byte[][] currentRootSig, GMSSParameters gmssParameterset, GMSSDigestProvider digestProvider) Generates a new GMSS private key Parameters currentSeed:byte[][] seed for the generation of private OTS keys for the current subtrees nextNextSeed:byte[][] seed for the generation of private OTS keys for the next subtrees currentAuthPath:byte[][][] array of current authentication paths nextAuthPath:byte[][][] array of next authentication paths currentTreehash:Treehash[][] array of current treehash instances nextTreehash:Treehash[][] array of next treehash instances currentStack:Vector<E>[] array of current shared stacks nextStack:Vector<E>[] array of next shared stacks currentRetain:Vector<E>[][] array of current retain stacks nextRetain:Vector<E>[][] array of next retain stacks nextRoot:byte[][] the roots of the next subtree currentRootSig:byte[][] array of signatures of the roots of the current subtrees gmssParameterset:GMSSParameters the GMSS Parameterset See Also `org.bouncycastle.pqc.legacy.crypto.gmss.GMSSKeyPairGenerator`

public GMSSPrivateKeyParameters(byte[][] currentSeed, byte[][] nextNextSeed, byte[][][] currentAuthPath, byte[][][] nextAuthPath, Treehash[][] currentTreehash, Treehash[][] nextTreehash, Vector<E>[] currentStack, Vector<E>[] nextStack, Vector<E>[][] currentRetain, Vector<E>[][] nextRetain, byte[][] nextRoot, byte[][] currentRootSig, GMSSParameters gmssParameterset, GMSSDigestProvider digestProvider)

Generates a new GMSS private key

Parameters

currentSeed:byte[][]: seed for the generation of private OTS keys for the current subtrees
nextNextSeed:byte[][]: seed for the generation of private OTS keys for the next subtrees
currentAuthPath:byte[][][]: array of current authentication paths
nextAuthPath:byte[][][]: array of next authentication paths
currentTreehash:Treehash[][]: array of current treehash instances
nextTreehash:Treehash[][]: array of next treehash instances
currentStack:Vector<E>[]: array of current shared stacks
nextStack:Vector<E>[]: array of next shared stacks
currentRetain:Vector<E>[][]: array of current retain stacks
nextRetain:Vector<E>[][]: array of next retain stacks
nextRoot:byte[][]: the roots of the next subtree
currentRootSig:byte[][]: array of signatures of the roots of the current subtrees
gmssParameterset:GMSSParameters: the GMSS Parameterset

GMSSPrivateKeyParameters	back to summary
public GMSSPrivateKeyParameters(int[] index, byte[][] currentSeeds, byte[][] nextNextSeeds, byte[][][] currentAuthPaths, byte[][][] nextAuthPaths, byte[][][] keep, Treehash[][] currentTreehash, Treehash[][] nextTreehash, Vector<E>[] currentStack, Vector<E>[] nextStack, Vector<E>[][] currentRetain, Vector<E>[][] nextRetain, GMSSLeaf[] nextNextLeaf, GMSSLeaf[] upperLeaf, GMSSLeaf[] upperTreehashLeaf, int[] minTreehash, byte[][] nextRoot, GMSSRootCalc[] nextNextRoot, byte[][] currentRootSig, GMSSRootSig[] nextRootSig, GMSSParameters gmssParameterset, GMSSDigestProvider digestProvider) /** Parameters index:int[] tree indices keep:byte[][][] keep array for the authPath algorithm currentTreehash:Treehash[][] treehash for authPath algorithm of current tree nextTreehash:Treehash[][] treehash for authPath algorithm of next tree (TREE+) currentStack:Vector<E>[] shared stack for authPath algorithm of current tree nextStack:Vector<E>[] shared stack for authPath algorithm of next tree (TREE+) currentRetain:Vector<E>[][] retain stack for authPath algorithm of current tree nextRetain:Vector<E>[][] retain stack for authPath algorithm of next tree (TREE+) nextNextLeaf:GMSSLeaf[] array of upcoming leafs of the tree after next (LEAF++) of each layer upperLeaf:GMSSLeaf[] needed for precomputation of upper nodes upperTreehashLeaf:GMSSLeaf[] needed for precomputation of upper treehash nodes minTreehash:int[] index of next treehash instance to receive an update nextRoot:byte[][] the roots of the next trees (ROOT+) nextNextRoot:GMSSRootCalc[] the roots of the tree after next (ROOT++) currentRootSig:byte[][] array of signatures of the roots of the current subtrees (SIG) nextRootSig:GMSSRootSig[] array of signatures of the roots of the next subtree (SIG+) gmssParameterset:GMSSParameters the GMSS Parameterset

GMSSPrivateKeyParameters

back to summary

public GMSSPrivateKeyParameters(int[] index, byte[][] currentSeeds, byte[][] nextNextSeeds, byte[][][] currentAuthPaths, byte[][][] nextAuthPaths, byte[][][] keep, Treehash[][] currentTreehash, Treehash[][] nextTreehash, Vector<E>[] currentStack, Vector<E>[] nextStack, Vector<E>[][] currentRetain, Vector<E>[][] nextRetain, GMSSLeaf[] nextNextLeaf, GMSSLeaf[] upperLeaf, GMSSLeaf[] upperTreehashLeaf, int[] minTreehash, byte[][] nextRoot, GMSSRootCalc[] nextNextRoot, byte[][] currentRootSig, GMSSRootSig[] nextRootSig, GMSSParameters gmssParameterset, GMSSDigestProvider digestProvider)

/**

Parameters

index:int[]: tree indices
keep:byte[][][]: keep array for the authPath algorithm
currentTreehash:Treehash[][]: treehash for authPath algorithm of current tree
nextTreehash:Treehash[][]: treehash for authPath algorithm of next tree (TREE+)
currentStack:Vector<E>[]: shared stack for authPath algorithm of current tree
nextStack:Vector<E>[]: shared stack for authPath algorithm of next tree (TREE+)
currentRetain:Vector<E>[][]: retain stack for authPath algorithm of current tree
nextRetain:Vector<E>[][]: retain stack for authPath algorithm of next tree (TREE+)
nextNextLeaf:GMSSLeaf[]: array of upcoming leafs of the tree after next (LEAF++) of each layer
upperLeaf:GMSSLeaf[]: needed for precomputation of upper nodes
upperTreehashLeaf:GMSSLeaf[]: needed for precomputation of upper treehash nodes
minTreehash:int[]: index of next treehash instance to receive an update
nextRoot:byte[][]: the roots of the next trees (ROOT+)
nextNextRoot:GMSSRootCalc[]: the roots of the tree after next (ROOT++)
currentRootSig:byte[][]: array of signatures of the roots of the current subtrees (SIG)
nextRootSig:GMSSRootSig[]: array of signatures of the roots of the next subtree (SIG+)
gmssParameterset:GMSSParameters: the GMSS Parameterset

GMSSPrivateKeyParameters	back to summary
private GMSSPrivateKeyParameters(GMSSPrivateKeyParameters original)

Method Detail

computeAuthPaths back to summary

computeAuthPaths	back to summary
private void computeAuthPaths(int layer) Computes the upcoming currentAuthpath of layer `layer` using the revisited authentication path computation of Dahmen/Schneider 2008 Parameters layer:int the actual layer

private void computeAuthPaths(int layer)

Computes the upcoming currentAuthpath of layer layer using the revisited authentication path computation of Dahmen/Schneider 2008

Parameters

layer:int: the actual layer

getCurrentAuthPaths	back to summary
public byte[][][] getCurrentAuthPaths()

getCurrentSeeds	back to summary
public byte[][] getCurrentSeeds()

getIndex	back to summary
public int[] getIndex()

getIndex	back to summary
public int getIndex(int i) Returns:int The current index of layer i

getMinTreehashIndex	back to summary
private int getMinTreehashIndex(int layer) This method returns the index of the next Treehash instance that should receive an update Parameters layer:int the layer of the GMSS tree Returns:int index of the treehash instance that should get the update

getMinTreehashIndex

back to summary

private int getMinTreehashIndex(int layer)

This method returns the index of the next Treehash instance that should receive an update

Parameters

layer:int: the layer of the GMSS tree

Returns:int

index of the treehash instance that should get the update

getName	back to summary
public GMSSDigestProvider getName()

getNumLeafs	back to summary
public int getNumLeafs(int i) Returns:int The number of leafs of each tree of layer i

getSubtreeRootSig	back to summary
public byte[] getSubtreeRootSig(int i) Returns:byte[] The one-time signature of the root of the current subtree

heightOfPhi back to summary

heightOfPhi	back to summary
private int heightOfPhi(int Phi) Returns the largest h such that 2^h \| Phi Parameters Phi:int the leaf index Returns:int The largest `h` with `2^h \| Phi` if `Phi!=0` else return `-1`

private int heightOfPhi(int Phi)

Returns the largest h such that 2^h | Phi

Parameters

Phi:int: the leaf index

Returns:int

The largest h with 2^h | Phi if Phi!=0 else return -1

isUsed	back to summary
public boolean isUsed()

markUsed	back to summary
public void markUsed()

nextKey	back to summary
public GMSSPrivateKeyParameters nextKey()

nextKey

back to summary

private void nextKey(int layer)

This method updates the GMSS private key for the next signature

Parameters

layer:int: the layer where the next key is processed

nextTree

back to summary

private void nextTree(int layer)

Switch to next subtree if the current one is depleted

Parameters

layer:int: the layer where the next tree is processed

updateKey	back to summary
private void updateKey(int layer) This method computes the authpath (AUTH) for the current tree, Additionally the root signature for the next tree (SIG+), the authpath (AUTH++) and root (ROOT++) for the tree after next in layer `layer`, and the LEAF++^1 for the next next tree in the layer above are updated This method is used by nextKey()

updateNextNextAuthRoot	back to summary
private void updateNextNextAuthRoot(int layer) Updates the authentication path and root calculation for the tree after next (AUTH++, ROOT++) in layer `layer`

public Class GMSSPrivateKeyParameters

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail