ECPoint
open class ECPoint
| kotlin.Any | |
| ↳ | java.security.spec.ECPoint |
This immutable class represents a point on an elliptic curve (EC) in affine coordinates. Other coordinate systems can extend this class to represent this point in other coordinates.
Summary
| Public constructors | |
|---|---|
ECPoint(x: BigInteger!, y: BigInteger!)Creates an ECPoint from the specified affine x-coordinate |
|
| Public methods | |
|---|---|
| open Boolean |
Compares this elliptic curve point for equality with the specified object. |
| open BigInteger! |
Returns the affine x-coordinate |
| open BigInteger! |
Returns the affine y-coordinate |
| open Int |
hashCode()Returns a hash code value for this elliptic curve point. |
| Properties | |
|---|---|
| static ECPoint! |
This defines the point at infinity. |
Public constructors
ECPoint
ECPoint(
x: BigInteger!,
y: BigInteger!)
Creates an ECPoint from the specified affine x-coordinate x and affine y-coordinate y.
| Parameters | |
|---|---|
x |
BigInteger!: the affine x-coordinate. |
y |
BigInteger!: the affine y-coordinate. |
| Exceptions | |
|---|---|
java.lang.NullPointerException |
if x or y is null. |
Public methods
equals
open fun equals(other: Any?): Boolean
Compares this elliptic curve point for equality with the specified object.
| Parameters | |
|---|---|
obj |
the object to be compared. |
| Return | |
|---|---|
Boolean |
true if obj is an instance of ECPoint and the affine coordinates match, false otherwise. |
getAffineX
open fun getAffineX(): BigInteger!
Returns the affine x-coordinate x. Note: POINT_INFINITY has a null affine x-coordinate.
| Return | |
|---|---|
BigInteger! |
the affine x-coordinate. |
getAffineY
open fun getAffineY(): BigInteger!
Returns the affine y-coordinate y. Note: POINT_INFINITY has a null affine y-coordinate.
| Return | |
|---|---|
BigInteger! |
the affine y-coordinate. |
hashCode
open fun hashCode(): Int
Returns a hash code value for this elliptic curve point.
| Return | |
|---|---|
Int |
a hash code value. |
Properties
POINT_INFINITY
static val POINT_INFINITY: ECPoint!
This defines the point at infinity.