Interface SM9SigMasterPublicKey

All Superinterfaces:

AsymmetricKey, DEREncodablePREVIEW, Key, PublicKey, Serializable

public interface SM9SigMasterPublicKey
extends PublicKey

Interface for an SM9 (GM/T 0044) signature master public key, the published root of the identity-based scheme.

Field Summary

Fields inherited from interface PublicKey

serialVersionUID

Method Summary

Modifier and Type	Method	Description
PublicKey	getUserPublicKey(byte[] identity)	Return the public key of the user identified by identity: the key a signature from that user verifies against.

Methods inherited from interface AsymmetricKey

getParams

Methods inherited from interface Key

getAlgorithm, getEncoded, getFormat

Method Details

getUserPublicKey

PublicKey getUserPublicKey(byte[] identity)

Return the public key of the user identified by identity: the key a signature from that user verifies against. It is derived from the master public key and the identity alone, so any verifier holding the published master public key can construct it - no certificate or KGC interaction is needed.

Parameters:

identity - the user's identity.

Returns:

the user's public key.