Bouncy Castle Provider 1.77 · org.bouncycastle.math.ec.custom.sec.SecP224R1FieldElement

Modifier and Type	Field and Description
public static final BigInteger	Q
protected int[]	x

Access	Constructor and Description
public	SecP224R1FieldElement(BigInteger x)
public	SecP224R1FieldElement()
protected	SecP224R1FieldElement(int[] x)

Method Summary

Modifier and Type	Method and Description
public ECFieldElement	add(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.add.
public ECFieldElement	addOne() Implements abstract org.bouncycastle.math.ec.ECFieldElement.addOne.
public ECFieldElement	divide(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.divide.
public boolean	equals(Object the reference object with which to compare. other) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public String	getFieldName() Implements abstract org.bouncycastle.math.ec.ECFieldElement.getFieldName.
public int	getFieldSize() Implements abstract org.bouncycastle.math.ec.ECFieldElement.getFieldSize.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.
public ECFieldElement	invert() Implements abstract org.bouncycastle.math.ec.ECFieldElement.invert.
public boolean	isOne() Overrides org.bouncycastle.math.ec.ECFieldElement.isOne.
private static boolean	isSquare(int[] x)
public boolean	isZero() Overrides org.bouncycastle.math.ec.ECFieldElement.isZero.
public ECFieldElement	multiply(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.multiply.
public ECFieldElement	negate() Implements abstract org.bouncycastle.math.ec.ECFieldElement.negate.
private static void	RM(int[] nc, int[] d0, int[] e0, int[] d1, int[] e1, int[] f1, int[] t)
private static void	RP(int[] nc, int[] d1, int[] e1, int[] f1, int[] t)
private static void	RS(int[] d, int[] e, int[] f, int[] t)
public ECFieldElement	sqrt() Implements abstract org.bouncycastle.math.ec.ECFieldElement.sqrt. return a sqrt root - the routine verifies that the calculation returns the right value - if none exists it returns null.
public ECFieldElement	square() Implements abstract org.bouncycastle.math.ec.ECFieldElement.square.
public ECFieldElement	subtract(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.subtract.
public boolean	testBitZero() Overrides org.bouncycastle.math.ec.ECFieldElement.testBitZero.
public BigInteger	toBigInteger() Implements abstract org.bouncycastle.math.ec.ECFieldElement.toBigInteger.
private static boolean	trySqrt(int[] nc, int[] r, int[] t)

Q	back to summary
public static final BigInteger Q

x	back to summary
protected int[] x

SecP224R1FieldElement	back to summary
public SecP224R1FieldElement(BigInteger x)

SecP224R1FieldElement	back to summary
public SecP224R1FieldElement()

SecP224R1FieldElement	back to summary
protected SecP224R1FieldElement(int[] x)

Method Detail

add	back to summary
public ECFieldElement add(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.add.

addOne	back to summary
public ECFieldElement addOne() Implements abstract org.bouncycastle.math.ec.ECFieldElement.addOne.

divide	back to summary
public ECFieldElement divide(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.divide.

equals back to summary

equals	back to summary
public boolean equals(Object other) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters other:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise.

public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

other:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

getFieldName	back to summary
public String getFieldName() Implements abstract org.bouncycastle.math.ec.ECFieldElement.getFieldName.

getFieldSize	back to summary
public int getFieldSize() Implements abstract org.bouncycastle.math.ec.ECFieldElement.getFieldSize.

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object.

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int: a hash code value for this object.

invert	back to summary
public ECFieldElement invert() Implements abstract org.bouncycastle.math.ec.ECFieldElement.invert.

isOne	back to summary
public boolean isOne() Overrides org.bouncycastle.math.ec.ECFieldElement.isOne.

isSquare	back to summary
private static boolean isSquare(int[] x)

isZero	back to summary
public boolean isZero() Overrides org.bouncycastle.math.ec.ECFieldElement.isZero.

multiply	back to summary
public ECFieldElement multiply(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.multiply.

negate	back to summary
public ECFieldElement negate() Implements abstract org.bouncycastle.math.ec.ECFieldElement.negate.

RM	back to summary
private static void RM(int[] nc, int[] d0, int[] e0, int[] d1, int[] e1, int[] f1, int[] t)

RP	back to summary
private static void RP(int[] nc, int[] d1, int[] e1, int[] f1, int[] t)

RS	back to summary
private static void RS(int[] d, int[] e, int[] f, int[] t)

sqrt	back to summary
public ECFieldElement sqrt() Implements abstract org.bouncycastle.math.ec.ECFieldElement.sqrt. return a sqrt root - the routine verifies that the calculation returns the right value - if none exists it returns null.

sqrt

back to summary

public ECFieldElement sqrt()

Implements abstract org.bouncycastle.math.ec.ECFieldElement.sqrt.

return a sqrt root - the routine verifies that the calculation returns the right value - if none exists it returns null.

square	back to summary
public ECFieldElement square() Implements abstract org.bouncycastle.math.ec.ECFieldElement.square.

subtract	back to summary
public ECFieldElement subtract(ECFieldElement b) Implements abstract org.bouncycastle.math.ec.ECFieldElement.subtract.

testBitZero	back to summary
public boolean testBitZero() Overrides org.bouncycastle.math.ec.ECFieldElement.testBitZero.

toBigInteger	back to summary
public BigInteger toBigInteger() Implements abstract org.bouncycastle.math.ec.ECFieldElement.toBigInteger.

trySqrt	back to summary
private static boolean trySqrt(int[] nc, int[] r, int[] t)

public Class SecP224R1FieldElement

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail