org.spongycastle.pqc.crypto.ntru

Class NTRUSigningPrivateKeyParameters

java.lang.Object

org.spongycastle.crypto.params.AsymmetricKeyParameter

org.spongycastle.pqc.crypto.ntru.NTRUSigningPrivateKeyParameters

All Implemented Interfaces:

CipherParameters

public class NTRUSigningPrivateKeyParameters
extends AsymmetricKeyParameter

A NtruSign private key comprises one or more NTRUSigningPrivateKeyParameters.Basis of three polynomials each, except the zeroth basis for which h is undefined.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NTRUSigningPrivateKeyParameters.Basis A NtruSign basis.

Constructor Summary

Constructors

Constructor and Description
NTRUSigningPrivateKeyParameters(byte[] b, NTRUSigningKeyGenerationParameters params) Constructs a new private key from a byte array
NTRUSigningPrivateKeyParameters(java.io.InputStream is, NTRUSigningKeyGenerationParameters params) Constructs a new private key from an input stream
NTRUSigningPrivateKeyParameters(java.util.List<NTRUSigningPrivateKeyParameters.Basis> bases, NTRUSigningPublicKeyParameters publicKey)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
NTRUSigningPrivateKeyParameters.Basis	getBasis(int i) Returns the i-th basis
byte[]	getEncoded() Converts the key to a byte array
NTRUSigningPublicKeyParameters	getPublicKey()
int	hashCode()
void	writeTo(java.io.OutputStream os) Writes the key to an output stream

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

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Detail

NTRUSigningPrivateKeyParameters

public NTRUSigningPrivateKeyParameters(byte[] b,
                                       NTRUSigningKeyGenerationParameters params)
                                throws java.io.IOException

Constructs a new private key from a byte array

Parameters:

b - an encoded private key

params - the NtruSign parameters to use

Throws:

java.io.IOException

NTRUSigningPrivateKeyParameters

public NTRUSigningPrivateKeyParameters(java.io.InputStream is,
                                       NTRUSigningKeyGenerationParameters params)
                                throws java.io.IOException

Constructs a new private key from an input stream

Parameters:

is - an input stream

params - the NtruSign parameters to use

Throws:

java.io.IOException

NTRUSigningPrivateKeyParameters

public NTRUSigningPrivateKeyParameters(java.util.List<NTRUSigningPrivateKeyParameters.Basis> bases,
                                       NTRUSigningPublicKeyParameters publicKey)

Method Detail

getBasis

public NTRUSigningPrivateKeyParameters.Basis getBasis(int i)

Returns the i-th basis

Parameters:

i - the index

Returns:

the basis at index i

getPublicKey

public NTRUSigningPublicKeyParameters getPublicKey()

getEncoded

public byte[] getEncoded()
                  throws java.io.IOException

Converts the key to a byte array

Returns:

the encoded key

Throws:

java.io.IOException

writeTo

public void writeTo(java.io.OutputStream os)
             throws java.io.IOException

Writes the key to an output stream

Parameters:

os - an output stream

Throws:

java.io.IOException

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object