Module ibm.crypto.hdwrcca

Package com.ibm.crypto.hdwrCCA.provider

Class KyberKeyAgreement

java.lang.Object

com.ibm.crypto.hdwrCCA.provider.KyberKeyAgreement

public class KyberKeyAgreement
extends java.lang.Object

This class is a concrete implementation of the Service Provider Interface (SPI) for key agreement using the CRYSTALS-Kyber key agreement algorithm.

Constructor Summary

Constructors

Constructor	Description
KyberKeyAgreement()	Constructor for the Kyber key agreement functionality.

Method Summary

Modifier and Type	Method	Description
javax.crypto.SecretKey	generateSecret(java.lang.String algorithm)	- Creates the shared secret and returns it as a SecretKey object of the specified algorithm.
void	init(java.security.Key hybridKey, ECPrivateHWKey ecPrivKey, ECPublicKey ecPubKey, byte[] encryptedValue, byte[] iv)	Initializes the KyberKeyAgreement object.
void	init(java.security.Key hybridKey, ECPrivateHWKey ecPrivKey, ECPublicKey ecPubKey, byte[] encryptedValue, byte[] iv, java.security.spec.AlgorithmParameterSpec params)	Initializes the KyberKeyAgreement object.

Methods inherited from class java.lang.Object

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

Constructor Detail

KyberKeyAgreement

public KyberKeyAgreement()

Constructor for the Kyber key agreement functionality.

Method Detail

init

public void init(java.security.Key hybridKey,
                 ECPrivateHWKey ecPrivKey,
                 ECPublicKey ecPubKey,
                 byte[] encryptedValue,
                 byte[] iv,
                 java.security.spec.AlgorithmParameterSpec params)
          throws java.security.InvalidKeyException,
                 java.security.InvalidAlgorithmParameterException

Initializes the KyberKeyAgreement object.

Parameters:

hybridKey - A CCA AES CIPHER key or a Kyber private key

ecPrivKey - An ECPrivateKey created by Bob.

ecPubKey - An ECPublicKey created by Alice.

aesEncryptedValue - The encrypted AES value generated by a KyberDerivationInput.encrypt() call.

iv - The AES encryption initialization vector

params - The algorithm parameters for the key agreement operation

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

init

public void init(java.security.Key hybridKey,
                 ECPrivateHWKey ecPrivKey,
                 ECPublicKey ecPubKey,
                 byte[] encryptedValue,
                 byte[] iv)
          throws java.security.InvalidKeyException

Initializes the KyberKeyAgreement object.

Parameters:

hybridKey - A CCA AES CIPHER key or a Kyber private key

ecPrivKey - An ECPrivateKey created by Bob.

ecPubKey - An ECPublicKey created by Alice.

aesEncryptedValue - The encrypted AES value generated by a KyberDerivationInput.encrypt() call.

iv - The AES encryption initialization vector

Throws:

java.security.InvalidKeyException

generateSecret

public javax.crypto.SecretKey generateSecret(java.lang.String algorithm)
                                      throws java.security.NoSuchAlgorithmException,
                                             java.security.InvalidKeyException

- Creates the shared secret and returns it as a SecretKey object of the specified algorithm.

Parameters:

algorithm -

keyBitLength -

Returns:

Throws:

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException