Package org.bouncycastle.pqc.crypto.lms

Class LMSPrivateKeyParameters

java.lang.Object

org.bouncycastle.crypto.params.AsymmetricKeyParameter

org.bouncycastle.pqc.crypto.lms.LMSKeyParameters

org.bouncycastle.pqc.crypto.lms.LMSPrivateKeyParameters

All Implemented Interfaces:

CipherParameters, LMSContextBasedSigner, Encodable

public class LMSPrivateKeyParameters
extends LMSKeyParameters
implements LMSContextBasedSigner

Constructor Summary

Constructors

Constructor	Description
LMSPrivateKeyParameters(LMSigParameters lmsParameter, LMOtsParameters otsParameters, int q, byte[] I, int maxQ, byte[] masterSecret)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
LMSPrivateKeyParameters	extractKeyShard(int usageCount)	Return a key that can be used usageCount times.
LMSContext	generateLMSContext()
byte[]	generateSignature(LMSContext context)
byte[]	getEncoded()	Return a byte array representing the implementing object.
byte[]	getI()
int	getIndex()	Return the key index (the q value).
int	getIndexLimit()
static LMSPrivateKeyParameters	getInstance(byte[] privEnc, byte[] pubEnc)
static LMSPrivateKeyParameters	getInstance(Object src)
byte[]	getMasterSecret()
LMOtsParameters	getOtsParameters()
LMSPublicKeyParameters	getPublicKey()
LMSigParameters	getSigParameters()
long	getUsagesRemaining()
int	hashCode()

Methods inherited from class org.bouncycastle.crypto.params.AsymmetricKeyParameter

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Details

LMSPrivateKeyParameters

public LMSPrivateKeyParameters(LMSigParameters lmsParameter,
 LMOtsParameters otsParameters,
 int q,
 byte[] I,
 int maxQ,
 byte[] masterSecret)

Method Details

getInstance

public static LMSPrivateKeyParameters getInstance(byte[] privEnc,
 byte[] pubEnc)
                                           throws IOException

Throws:

IOException

getInstance

public static LMSPrivateKeyParameters getInstance(Object src)
                                           throws IOException

Throws:

IOException

getIndex

public int getIndex()

Return the key index (the q value).

Returns:

private key index number.

generateLMSContext

public LMSContext generateLMSContext()

Specified by:

generateLMSContext in interface LMSContextBasedSigner

generateSignature

public byte[] generateSignature(LMSContext context)

Specified by:

generateSignature in interface LMSContextBasedSigner

extractKeyShard

public LMSPrivateKeyParameters extractKeyShard(int usageCount)

Return a key that can be used usageCount times.

Note: this will use the range [index...index + usageCount) for the current key.

Parameters:

usageCount - the number of usages the key should have.

Returns:

a key based on the current key that can be used usageCount times.

getSigParameters

public LMSigParameters getSigParameters()

getOtsParameters

public LMOtsParameters getOtsParameters()

getI

public byte[] getI()

getMasterSecret

public byte[] getMasterSecret()

getIndexLimit

public int getIndexLimit()

getUsagesRemaining

public long getUsagesRemaining()

Specified by:

getUsagesRemaining in interface LMSContextBasedSigner

getPublicKey

public LMSPublicKeyParameters getPublicKey()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getEncoded

public byte[] getEncoded()
                  throws IOException

Description copied from interface: Encodable

Return a byte array representing the implementing object.

Specified by:

getEncoded in interface Encodable

Specified by:

getEncoded in class LMSKeyParameters

Returns:

a byte array representing the encoding.

Throws:

IOException - if an issue arises generation the encoding.