| Package | Description | 
|---|---|
| java.security.spec | 
 Provides classes and interfaces for key specifications and algorithm
 parameter specifications. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
ECFieldF2m
This immutable class defines an elliptic curve (EC)
 characteristic 2 finite field. 
 | 
class  | 
ECFieldFp
This immutable class defines an elliptic curve (EC) prime
 finite field. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
ECField | 
EllipticCurve.getField()
Returns the finite field  
field that this
 elliptic curve is over. | 
| Constructor and Description | 
|---|
EllipticCurve(ECField field,
             BigInteger a,
             BigInteger b)
Creates an elliptic curve with the specified elliptic field
  
field and the coefficients a and
 b. | 
EllipticCurve(ECField field,
             BigInteger a,
             BigInteger b,
             byte[] seed)
Creates an elliptic curve with the specified elliptic field
  
field, the coefficients a and
 b, and the seed used for curve generation. | 
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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