public
class
ECFieldFp
extends Object
implements
ECField
java.lang.Object | |
↳ | java.security.spec.ECFieldFp |
This immutable class defines an elliptic curve (EC) prime finite field.
See also:
Public constructors | |
---|---|
ECFieldFp(BigInteger p)
Creates an elliptic curve prime finite field
with the specified prime |
Public methods | |
---|---|
boolean
|
equals(Object obj)
Compares this prime finite field for equality with the specified object. |
int
|
getFieldSize()
Returns the field size in bits which is size of prime p for this prime finite field. |
BigInteger
|
getP()
Returns the prime |
int
|
hashCode()
Returns a hash code value for this prime finite field. |
Inherited methods | |
---|---|
From
class
java.lang.Object
| |
From
interface
java.security.spec.ECField
|
ECFieldFp (BigInteger p)
Creates an elliptic curve prime finite field
with the specified prime p
.
Parameters | |
---|---|
p |
BigInteger :
the prime. |
Throws | |
---|---|
NullPointerException |
if p is null. |
IllegalArgumentException |
if p
is not positive.
|
boolean equals (Object obj)
Compares this prime finite field for equality with the specified object.
Parameters | |
---|---|
obj |
Object :
the object to be compared. |
Returns | |
---|---|
boolean |
true if obj is an instance
of ECFieldFp and the prime value match, false otherwise.
|
int getFieldSize ()
Returns the field size in bits which is size of prime p for this prime finite field.
Returns | |
---|---|
int |
the field size in bits. |
BigInteger getP ()
Returns the prime p
of this prime finite field.
Returns | |
---|---|
BigInteger |
the prime. |
int hashCode ()
Returns a hash code value for this prime finite field.
Returns | |
---|---|
int |
a hash code value. |