65 lines
2.3 KiB
Java
65 lines
2.3 KiB
Java
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package org.bouncycastle.math.ec.custom.sec;
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import java.math.BigInteger;
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import org.bouncycastle.math.ec.ECConstants;
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import org.bouncycastle.math.ec.ECCurve;
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import org.bouncycastle.math.ec.ECFieldElement;
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import org.bouncycastle.math.ec.ECPoint;
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import org.bouncycastle.util.encoders.Hex;
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/* loaded from: classes6.dex */
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public class SecP256K1Curve extends ECCurve.AbstractFp {
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private static final int SECP256K1_DEFAULT_COORDS = 2;
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public static final BigInteger q = new BigInteger(1, Hex.decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F"));
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protected SecP256K1Point infinity;
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@Override // org.bouncycastle.math.ec.ECCurve
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public boolean supportsCoordinateSystem(int i) {
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return i == 2;
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}
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public BigInteger getQ() {
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return q;
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public ECPoint getInfinity() {
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return this.infinity;
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public int getFieldSize() {
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return q.bitLength();
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public ECFieldElement fromBigInteger(BigInteger bigInteger) {
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return new SecP256K1FieldElement(bigInteger);
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public ECPoint createRawPoint(ECFieldElement eCFieldElement, ECFieldElement eCFieldElement2, ECFieldElement[] eCFieldElementArr, boolean z) {
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return new SecP256K1Point(this, eCFieldElement, eCFieldElement2, eCFieldElementArr, z);
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public ECPoint createRawPoint(ECFieldElement eCFieldElement, ECFieldElement eCFieldElement2, boolean z) {
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return new SecP256K1Point(this, eCFieldElement, eCFieldElement2, z);
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}
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@Override // org.bouncycastle.math.ec.ECCurve
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public ECCurve cloneCurve() {
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return new SecP256K1Curve();
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}
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public SecP256K1Curve() {
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super(q);
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this.infinity = new SecP256K1Point(this, null, null);
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this.a = fromBigInteger(ECConstants.ZERO);
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this.b = fromBigInteger(BigInteger.valueOf(7L));
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this.order = new BigInteger(1, Hex.decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141"));
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this.cofactor = BigInteger.valueOf(1L);
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this.coord = 2;
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}
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}
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