- java.lang.Object
-
- java.security.spec.ECFieldFp
-
-
Constructor Summary
Constructors Constructor Description ECFieldFp(BigInteger p)Creates an elliptic curve prime finite field with the specified primep.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(Object obj)Compares this prime finite field for equality with the specified object.intgetFieldSize()Returns the field size in bits which is size of prime p for this prime finite field.BigIntegergetP()Returns the primepof this prime finite field.inthashCode()Returns a hash code value for this prime finite field.
-
-
-
Constructor Detail
-
ECFieldFp
public ECFieldFp(BigInteger p)
Creates an elliptic curve prime finite field with the specified primep.- Parameters:
p- the prime.- Throws:
NullPointerException- ifpis null.IllegalArgumentException- ifpis not positive.
-
-
Method Detail
-
getFieldSize
public int getFieldSize()
Returns the field size in bits which is size of prime p for this prime finite field.- Specified by:
getFieldSizein interfaceECField- Returns:
- the field size in bits.
-
getP
public BigInteger getP()
Returns the primepof this prime finite field.- Returns:
- the prime.
-
equals
public boolean equals(Object obj)
Compares this prime finite field for equality with the specified object.- Overrides:
equalsin classObject- Parameters:
obj- the object to be compared.- Returns:
- true if
objis an instance of ECFieldFp and the prime value match, false otherwise. - See Also:
Object.hashCode(),HashMap
-
hashCode
public int hashCode()
Returns a hash code value for this prime finite field.- Overrides:
hashCodein classObject- Returns:
- a hash code value.
- See Also:
Object.equals(java.lang.Object),System.identityHashCode(java.lang.Object)
-
-