javax.xml.crypto.enc
Interfaces 
CipherData
CipherReference
CipherValue
DataReference
EncryptedData
EncryptedType
EncryptionMethod
EncryptionProperties
EncryptionProperty
KeyReference
ReferenceType
ToBeEncrypted
ToBeEncryptedXML
XMLDecryptContext
XMLEncryptContext
Classes 
ToBeEncryptedKey
ToBeEncryptedOctetStream
XMLEncryptionFactory
Exceptions 
XMLEncryptionException