GenericGF class

This class contains utility methods for performing mathematical operations over the Galois Fields. Operations use a given primitive polynomial in calculations.

Throughout this package, elements of the GF are represented as an int for convenience and speed (but at the cost of memory).

Constructors

GenericGF(int _primitive, int _size, int _generatorBase)

Create a representation of GF(size) using the given primitive polynomial.

Properties

generatorBase → int

no setter

hashCode → int

The hash code for this object.

no setter, inherited

one → GenericGFPoly

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → int

no setter

zero → GenericGFPoly

no setter

Methods

buildMonomial(int degree, int coefficient) → GenericGFPoly

@return the monomial representing coefficient * x^degree

exp(int a) → int

@return 2 to the power of a in GF(size)

inverse(int a) → int

@return multiplicative inverse of a

log(int a) → int

@return base 2 log of a in GF(size)

multiply(int a, int b) → int

@return product of a and b in GF(size)

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

aztecData10 → GenericGF

final

aztecData12 → GenericGF

final

aztecData6 → GenericGF

final

aztecData8 → GenericGF

final

aztecParam → GenericGF

final

dataMatrixField256 → GenericGF

final

maxicodeField64 → GenericGF

final

qrCodeField256 → GenericGF

final

Static Methods

addOrSubtract(int a, int b) → int

Implements both addition and subtraction -- they are the same in GF(size).