org.bouncycastle.crypto.params
Class SM9EncPublicKeyParameters

java.lang.Object
  org.bouncycastle.crypto.params.AsymmetricKeyParameter
      org.bouncycastle.crypto.params.SM9EncPublicKeyParameters

All Implemented Interfaces:

CipherParameters

public class SM9EncPublicKeyParameters

extends AsymmetricKeyParameter

An SM9 recipient's encryption public key: the identity together with the encryption master public key from which the recipient point Q is derived (GM/T 0044.4-2016). Obtained from SM9EncMasterPublicKeyParameters.getUserPublicKey(byte[]) and passed to the SM9KEMGenerator when encapsulating a key to a given identity.

It is also what SM9Engine encrypts to. Usage warning: an identity's key should be used for one of the two, but not for both. Which of the two an identity's key is for is the KGC's to fix, by publishing a separate hid for each function as it already does for the key exchange.

Method Summary

byte	getHid() The private-key generation function identifier hid this public key's Q point is formed under - the KGC's published choice, for a KEM / encryption recipient key.
byte[]	getIdentity()
SM9EncMasterPublicKeyParameters	getMasterPublicKey()

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

isPrivate

Methods inherited from class java.lang.Object

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

Method Detail

getMasterPublicKey

public SM9EncMasterPublicKeyParameters getMasterPublicKey()

getIdentity

public byte[] getIdentity()

getHid

public byte getHid()

The private-key generation function identifier hid this public key's Q point is formed under - the KGC's published choice, for a KEM / encryption recipient key.