org.bouncycastle.crypto.kems
Class SM9KEMGenerator

java.lang.Object
  org.bouncycastle.crypto.kems.SM9KEMGenerator

All Implemented Interfaces:

EncapsulatedSecretGenerator

public class SM9KEMGenerator

extends java.lang.Object

implements EncapsulatedSecretGenerator

SM9 key encapsulation mechanism - encapsulation side (GM/T 0044.4-2016, clause 6). Given a recipient identity and the encryption master public key, produces a shared key K and its encapsulation C = [r]Q_B (a G1 point, encoded x||y).

Constructor Summary

SM9KEMGenerator(int keyLenBits, java.security.SecureRandom random)

Method Summary

SecretWithEncapsulation

generateEncapsulated(AsymmetricKeyParameter recipientKey) Generate secret/encapsulation based on the recipient public key.

Methods inherited from class java.lang.Object

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

Constructor Detail

SM9KEMGenerator

public SM9KEMGenerator(int keyLenBits,
                       java.security.SecureRandom random)

Method Detail

generateEncapsulated

public SecretWithEncapsulation generateEncapsulated(AsymmetricKeyParameter recipientKey)

Description copied from interface: EncapsulatedSecretGenerator

Generate secret/encapsulation based on the recipient public key.

Specified by:

generateEncapsulated in interface EncapsulatedSecretGenerator

Returns:

An SecretWithEncapsulation derived from the recipient public key.