ECFieldFp
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:
Summary
Public constructors | |
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ECFieldFp(BigInteger p) Creates an elliptic curve prime finite field with the specified prime |
Public methods | |
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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 | |
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Public constructors
ECFieldFp
public ECFieldFp (BigInteger p)
Creates an elliptic curve prime finite field with the specified prime p
.
Parameters | |
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p | BigInteger : the prime. |
Throws | |
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NullPointerException | if p is null. |
IllegalArgumentException | if p is not positive. |
Public methods
equals
public boolean equals (Object obj)
Compares this prime finite field for equality with the specified object.
Parameters | |
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obj | Object : the object to be compared. |
Returns | |
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boolean | true if obj is an instance of ECFieldFp and the prime value match, false otherwise. |
getFieldSize
public int getFieldSize ()
Returns the field size in bits which is size of prime p for this prime finite field.
Returns | |
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int | the field size in bits. |
getP
public BigInteger getP ()
Returns the prime p
of this prime finite field.
Returns | |
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BigInteger | the prime. |
hashCode
public int hashCode ()
Returns a hash code value for this prime finite field.
Returns | |
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int | a hash code value. |