javax.crypto
Interfaces  
SecretKey

Classes  
Cipher
CipherInputStream
CipherOutputStream
CipherSpi
KeyAgreement
KeyAgreementSpi
KeyGenerator
KeyGeneratorSpi
Mac
MacSpi
NullCipher
SealedObject
SecretKeyFactory
SecretKeyFactorySpi

Exceptions  
BadPaddingException
IllegalBlockSizeException
NoSuchPaddingException
ShortBufferException