Package org.bouncycastle.pqc.legacy.crypto.ntru

Class NTRUEncryptionPublicKeyParameters

java.lang.Object

org.bouncycastle.crypto.params.AsymmetricKeyParameter

org.bouncycastle.pqc.legacy.crypto.ntru.NTRUEncryptionKeyParameters

org.bouncycastle.pqc.legacy.crypto.ntru.NTRUEncryptionPublicKeyParameters

All Implemented Interfaces:

CipherParameters

public class NTRUEncryptionPublicKeyParameters
extends NTRUEncryptionKeyParameters

A NtruEncrypt public key is essentially a polynomial named h.

Field Summary

Fields

Modifier and Type	Field	Description
IntegerPolynomial	h

Fields inherited from class org.bouncycastle.pqc.legacy.crypto.ntru.NTRUEncryptionKeyParameters

params

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
byte[]	getEncoded()	Converts the key to a byte array
int	hashCode()
void	writeTo(OutputStream os)	Writes the key to an output stream

Methods inherited from class org.bouncycastle.pqc.legacy.crypto.ntru.NTRUEncryptionKeyParameters

getParameters

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

Field Details

h

public IntegerPolynomial h

Constructor Details

NTRUEncryptionPublicKeyParameters

public NTRUEncryptionPublicKeyParameters(IntegerPolynomial h,
 NTRUEncryptionParameters params)

Constructs a new public key from a polynomial

Parameters:

h - the polynomial h which determines the key

params - the NtruEncrypt parameters to use

NTRUEncryptionPublicKeyParameters

public NTRUEncryptionPublicKeyParameters(byte[] b,
 NTRUEncryptionParameters params)

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

Parameters:

b - an encoded polynomial

params - the NtruEncrypt parameters to use

See Also:

• getEncoded()

NTRUEncryptionPublicKeyParameters

public NTRUEncryptionPublicKeyParameters(InputStream is,
 NTRUEncryptionParameters params)
                                  throws IOException

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

Parameters:

is - an input stream

params - the NtruEncrypt parameters to use

Throws:

IOException

See Also:

• writeTo(OutputStream)

Method Details

getEncoded

public byte[] getEncoded()

Converts the key to a byte array

Returns:

the encoded key

See Also:

• NTRUEncryptionPublicKeyParameters(byte[], NTRUEncryptionParameters)

writeTo

public void writeTo(OutputStream os)
             throws IOException

Writes the key to an output stream

Parameters:

os - an output stream

Throws:

IOException

See Also:

• NTRUEncryptionPublicKeyParameters(InputStream, NTRUEncryptionParameters)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object