org.spongycastle.pqc.crypto.ntru

Class NTRUSigningPublicKeyParameters

java.lang.Object

org.spongycastle.crypto.params.AsymmetricKeyParameter

org.spongycastle.pqc.crypto.ntru.NTRUSigningPublicKeyParameters

All Implemented Interfaces:

CipherParameters

public class NTRUSigningPublicKeyParameters
extends AsymmetricKeyParameter

A NtruSign public key is essentially a polynomial named h.

Field Summary

Fields

Modifier and Type	Field and Description
IntegerPolynomial	h

Constructor Summary

Constructors

Constructor and Description
NTRUSigningPublicKeyParameters(byte[] b, NTRUSigningParameters params) Converts a byte array to a polynomial h and constructs a new public key
NTRUSigningPublicKeyParameters(java.io.InputStream is, NTRUSigningParameters params) Reads a polynomial h from an input stream and constructs a new public key
NTRUSigningPublicKeyParameters(IntegerPolynomial h, NTRUSigningParameters params) Constructs a new public key from a polynomial

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
byte[]	getEncoded() Converts the key to a byte array
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

Field Detail

h

public IntegerPolynomial h

Constructor Detail

NTRUSigningPublicKeyParameters

public NTRUSigningPublicKeyParameters(IntegerPolynomial h,
                                      NTRUSigningParameters params)

Constructs a new public key from a polynomial

Parameters:

h - the polynomial h which determines the key

params - the NtruSign parameters to use

NTRUSigningPublicKeyParameters

public NTRUSigningPublicKeyParameters(byte[] b,
                                      NTRUSigningParameters params)

Converts a byte array to a polynomial h and constructs a new public key

Parameters:

b - an encoded polynomial

params - the NtruSign parameters to use

NTRUSigningPublicKeyParameters

public NTRUSigningPublicKeyParameters(java.io.InputStream is,
                                      NTRUSigningParameters params)
                               throws java.io.IOException

Reads a polynomial h from an input stream and constructs a new public key

Parameters:

is - an input stream

params - the NtruSign parameters to use

Throws:

java.io.IOException

Method Detail

getEncoded

public byte[] getEncoded()

Converts the key to a byte array

Returns:

the encoded key

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