KeyPairGenerator
  getInstance(String algorithm)
  initialize(AlgorithmParameterSpec params)

KeyFactory
  getInstance(String algorithm)
  PrivateKey generatePrivate(KeySpec keySpec)
  PublicKey generatePublic(KeySpec keySpec)

Constructors:

ECGenParameterSpec - implements AlgorithmParameterSpec
  String stdName

ECParameterSpec - implements AlgorithmParameterSpec
  EllipticCurve curve
  ECPoint G
  BigInteger n
  int h

ECPrivateKeySpec - implements KeySpec
  BigInteger S
  ECParameterSpec params

ECPublicKeySpec - implements KeySpec
  ECPoint W
  ECParameterSpec params

EllipticCurve
  ECField field
  BigInteger A
  BigInteger B

ECPoint
  BigInteger X
  BigInteger Y

ECField - interface 

ECFieldF2m - implements ECField
  int m
  BigInteger poly
    getM()
    getReductionPolynomial()

ECFieldFp - implements ECField
  BigInteger P
    getP()