what-the-bank/sources/org/bouncycastle/math/ec/custom/sec/SecP384R1FieldElement.java

175 lines
6.3 KiB
Java

package org.bouncycastle.math.ec.custom.sec;
import java.math.BigInteger;
import org.bouncycastle.math.ec.ECFieldElement;
import org.bouncycastle.math.raw.Mod;
import org.bouncycastle.math.raw.Nat;
import org.bouncycastle.util.Arrays;
/* loaded from: classes6.dex */
public class SecP384R1FieldElement extends ECFieldElement {
public static final BigInteger Q = SecP384R1Curve.q;
protected int[] x;
@Override // org.bouncycastle.math.ec.ECFieldElement
public BigInteger toBigInteger() {
return Nat.toBigInteger(12, this.x);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public boolean testBitZero() {
return Nat.getBit(this.x, 0) == 1;
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement subtract(ECFieldElement eCFieldElement) {
int[] create = Nat.create(12);
SecP384R1Field.subtract(this.x, ((SecP384R1FieldElement) eCFieldElement).x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement square() {
int[] create = Nat.create(12);
SecP384R1Field.square(this.x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement sqrt() {
int[] iArr = this.x;
if (Nat.isZero(12, iArr) || Nat.isOne(12, iArr)) {
return this;
}
int[] create = Nat.create(12);
int[] create2 = Nat.create(12);
int[] create3 = Nat.create(12);
int[] create4 = Nat.create(12);
SecP384R1Field.square(iArr, create);
SecP384R1Field.multiply(create, iArr, create);
SecP384R1Field.squareN(create, 2, create2);
SecP384R1Field.multiply(create2, create, create2);
SecP384R1Field.square(create2, create2);
SecP384R1Field.multiply(create2, iArr, create2);
SecP384R1Field.squareN(create2, 5, create3);
SecP384R1Field.multiply(create3, create2, create3);
SecP384R1Field.squareN(create3, 5, create4);
SecP384R1Field.multiply(create4, create2, create4);
SecP384R1Field.squareN(create4, 15, create2);
SecP384R1Field.multiply(create2, create4, create2);
SecP384R1Field.squareN(create2, 2, create3);
SecP384R1Field.multiply(create, create3, create);
SecP384R1Field.squareN(create3, 28, create3);
SecP384R1Field.multiply(create2, create3, create2);
SecP384R1Field.squareN(create2, 60, create3);
SecP384R1Field.multiply(create3, create2, create3);
SecP384R1Field.squareN(create3, 120, create2);
SecP384R1Field.multiply(create2, create3, create2);
SecP384R1Field.squareN(create2, 15, create2);
SecP384R1Field.multiply(create2, create4, create2);
SecP384R1Field.squareN(create2, 33, create2);
SecP384R1Field.multiply(create2, create, create2);
SecP384R1Field.squareN(create2, 64, create2);
SecP384R1Field.multiply(create2, iArr, create2);
SecP384R1Field.squareN(create2, 30, create);
SecP384R1Field.square(create, create2);
if (Nat.eq(12, iArr, create2)) {
return new SecP384R1FieldElement(create);
}
return null;
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement negate() {
int[] create = Nat.create(12);
SecP384R1Field.negate(this.x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement multiply(ECFieldElement eCFieldElement) {
int[] create = Nat.create(12);
SecP384R1Field.multiply(this.x, ((SecP384R1FieldElement) eCFieldElement).x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public boolean isZero() {
return Nat.isZero(12, this.x);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public boolean isOne() {
return Nat.isOne(12, this.x);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement invert() {
int[] create = Nat.create(12);
Mod.invert(SecP384R1Field.P, this.x, create);
return new SecP384R1FieldElement(create);
}
public int hashCode() {
return Q.hashCode() ^ Arrays.hashCode(this.x, 0, 12);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public int getFieldSize() {
return Q.bitLength();
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public String getFieldName() {
return "SecP384R1Field";
}
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof SecP384R1FieldElement) {
return Nat.eq(12, this.x, ((SecP384R1FieldElement) obj).x);
}
return false;
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement divide(ECFieldElement eCFieldElement) {
int[] create = Nat.create(12);
Mod.invert(SecP384R1Field.P, ((SecP384R1FieldElement) eCFieldElement).x, create);
SecP384R1Field.multiply(create, this.x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement addOne() {
int[] create = Nat.create(12);
SecP384R1Field.addOne(this.x, create);
return new SecP384R1FieldElement(create);
}
@Override // org.bouncycastle.math.ec.ECFieldElement
public ECFieldElement add(ECFieldElement eCFieldElement) {
int[] create = Nat.create(12);
SecP384R1Field.add(this.x, ((SecP384R1FieldElement) eCFieldElement).x, create);
return new SecP384R1FieldElement(create);
}
/* JADX INFO: Access modifiers changed from: protected */
public SecP384R1FieldElement(int[] iArr) {
this.x = iArr;
}
public SecP384R1FieldElement(BigInteger bigInteger) {
if (bigInteger == null || bigInteger.signum() < 0 || bigInteger.compareTo(Q) >= 0) {
throw new IllegalArgumentException("x value invalid for SecP384R1FieldElement");
}
this.x = SecP384R1Field.fromBigInteger(bigInteger);
}
public SecP384R1FieldElement() {
this.x = Nat.create(12);
}
}