org.spongycastle.pqc.crypto.xmss

Class XMSS

java.lang.Object

org.spongycastle.pqc.crypto.xmss.XMSS

public class XMSS
extends java.lang.Object

XMSS.

Constructor Summary

Constructors

Constructor and Description
XMSS(XMSSParameters params, java.security.SecureRandom prng) XMSS constructor...

Method Summary

Modifier and Type	Method and Description
byte[]	exportPrivateKey() Export XMSS private key.
byte[]	exportPublicKey() Export XMSS public key.
void	generateKeys() Generate a new XMSS private key / public key pair.
int	getIndex() Getter XMSS index.
XMSSParameters	getParams() Getter XMSS params.
XMSSPrivateKeyParameters	getPrivateKey()
byte[]	getPublicSeed() Getter XMSS public seed.
byte[]	getRoot() Getter XMSS root.
protected org.spongycastle.pqc.crypto.xmss.WOTSPlus	getWOTSPlus() Getter WOTS+.
void	importState(byte[] privateKey, byte[] publicKey) Import XMSS private key / public key pair.
protected void	setIndex(int index)
protected void	setPublicSeed(byte[] publicSeed)
protected void	setRoot(byte[] root)
byte[]	sign(byte[] message) Sign message.
boolean	verifySignature(byte[] message, byte[] signature, byte[] publicKey) Verify an XMSS signature.
protected org.spongycastle.pqc.crypto.xmss.WOTSPlusSignature	wotsSign(byte[] messageDigest, org.spongycastle.pqc.crypto.xmss.OTSHashAddress otsHashAddress) Generate a WOTS+ signature on a message without the corresponding authentication path

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XMSS

public XMSS(XMSSParameters params,
            java.security.SecureRandom prng)

XMSS constructor...

Parameters:

params - XMSSParameters.

Method Detail

generateKeys

public void generateKeys()

Generate a new XMSS private key / public key pair.

importState

public void importState(byte[] privateKey,
                        byte[] publicKey)

Import XMSS private key / public key pair.

Parameters:

privateKey - XMSS private key.

publicKey - XMSS public key.

Throws:

java.lang.ClassNotFoundException

java.io.IOException

sign

public byte[] sign(byte[] message)

Sign message.

Parameters:

message - Message to sign.

Returns:

XMSS signature on digest of message.

verifySignature

public boolean verifySignature(byte[] message,
                               byte[] signature,
                               byte[] publicKey)
                        throws java.text.ParseException

Verify an XMSS signature.

Parameters:

message - Message.

signature - XMSS signature.

publicKey - XMSS public key.

Returns:

true if signature is valid false else.

Throws:

java.text.ParseException

exportPrivateKey

public byte[] exportPrivateKey()

Export XMSS private key.

Returns:

XMSS private key.

exportPublicKey

public byte[] exportPublicKey()

Export XMSS public key.

Returns:

XMSS public key.

wotsSign

protected org.spongycastle.pqc.crypto.xmss.WOTSPlusSignature wotsSign(byte[] messageDigest,
                                                                      org.spongycastle.pqc.crypto.xmss.OTSHashAddress otsHashAddress)

Generate a WOTS+ signature on a message without the corresponding authentication path

Parameters:

messageDigest - Message digest of length n.

otsHashAddress - OTS hash address.

Returns:

XMSS signature.

getParams

public XMSSParameters getParams()

Getter XMSS params.

Returns:

XMSS params.

getWOTSPlus

protected org.spongycastle.pqc.crypto.xmss.WOTSPlus getWOTSPlus()

Getter WOTS+.

Returns:

WOTS+ instance.

getRoot

public byte[] getRoot()

Getter XMSS root.

Returns:

Root of binary tree.

setRoot

protected void setRoot(byte[] root)

getIndex

public int getIndex()

Getter XMSS index.

Returns:

Index.

setIndex

protected void setIndex(int index)

getPublicSeed

public byte[] getPublicSeed()

Getter XMSS public seed.

Returns:

Public seed.

setPublicSeed

protected void setPublicSeed(byte[] publicSeed)

getPrivateKey

public XMSSPrivateKeyParameters getPrivateKey()