157 lines
7.0 KiB
Java
157 lines
7.0 KiB
Java
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package org.bouncycastle.asn1.x9;
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import java.math.BigInteger;
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import org.bouncycastle.asn1.ASN1Integer;
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import org.bouncycastle.asn1.ASN1Object;
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import org.bouncycastle.asn1.ASN1ObjectIdentifier;
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import org.bouncycastle.asn1.ASN1OctetString;
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import org.bouncycastle.asn1.ASN1Sequence;
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import org.bouncycastle.asn1.DERBitString;
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import org.bouncycastle.math.ec.ECAlgorithms;
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import org.bouncycastle.math.ec.ECCurve;
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/* loaded from: classes6.dex */
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public class X9Curve extends ASN1Object implements X9ObjectIdentifiers {
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private ECCurve curve;
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private ASN1ObjectIdentifier fieldIdentifier;
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private byte[] seed;
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/* JADX WARN: Removed duplicated region for block: B:7:0x005f */
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@Override // org.bouncycastle.asn1.ASN1Object, org.bouncycastle.asn1.ASN1Encodable
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/*
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Code decompiled incorrectly, please refer to instructions dump.
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To view partially-correct add '--show-bad-code' argument
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*/
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public org.bouncycastle.asn1.ASN1Primitive toASN1Primitive() {
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/*
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r3 = this;
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org.bouncycastle.asn1.ASN1EncodableVector r0 = new org.bouncycastle.asn1.ASN1EncodableVector
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r0.<init>()
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org.bouncycastle.asn1.ASN1ObjectIdentifier r1 = r3.fieldIdentifier
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org.bouncycastle.asn1.ASN1ObjectIdentifier r2 = org.bouncycastle.asn1.x9.X9Curve.prime_field
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boolean r1 = r1.equals(r2)
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if (r1 == 0) goto L2d
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org.bouncycastle.asn1.x9.X9FieldElement r1 = new org.bouncycastle.asn1.x9.X9FieldElement
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org.bouncycastle.math.ec.ECCurve r2 = r3.curve
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org.bouncycastle.math.ec.ECFieldElement r2 = r2.getA()
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r1.<init>(r2)
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org.bouncycastle.asn1.ASN1Primitive r1 = r1.toASN1Primitive()
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r0.add(r1)
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org.bouncycastle.asn1.x9.X9FieldElement r1 = new org.bouncycastle.asn1.x9.X9FieldElement
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org.bouncycastle.math.ec.ECCurve r2 = r3.curve
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org.bouncycastle.math.ec.ECFieldElement r2 = r2.getB()
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r1.<init>(r2)
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goto L54
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L2d:
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org.bouncycastle.asn1.ASN1ObjectIdentifier r1 = r3.fieldIdentifier
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org.bouncycastle.asn1.ASN1ObjectIdentifier r2 = org.bouncycastle.asn1.x9.X9Curve.characteristic_two_field
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boolean r1 = r1.equals(r2)
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if (r1 == 0) goto L5b
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org.bouncycastle.asn1.x9.X9FieldElement r1 = new org.bouncycastle.asn1.x9.X9FieldElement
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org.bouncycastle.math.ec.ECCurve r2 = r3.curve
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org.bouncycastle.math.ec.ECFieldElement r2 = r2.getA()
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r1.<init>(r2)
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org.bouncycastle.asn1.ASN1Primitive r1 = r1.toASN1Primitive()
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r0.add(r1)
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org.bouncycastle.asn1.x9.X9FieldElement r1 = new org.bouncycastle.asn1.x9.X9FieldElement
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org.bouncycastle.math.ec.ECCurve r2 = r3.curve
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org.bouncycastle.math.ec.ECFieldElement r2 = r2.getB()
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r1.<init>(r2)
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L54:
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org.bouncycastle.asn1.ASN1Primitive r1 = r1.toASN1Primitive()
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r0.add(r1)
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L5b:
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byte[] r1 = r3.seed
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if (r1 == 0) goto L69
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org.bouncycastle.asn1.DERBitString r1 = new org.bouncycastle.asn1.DERBitString
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byte[] r2 = r3.seed
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r1.<init>(r2)
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r0.add(r1)
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L69:
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org.bouncycastle.asn1.DERSequence r1 = new org.bouncycastle.asn1.DERSequence
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r1.<init>(r0)
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return r1
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*/
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throw new UnsupportedOperationException("Method not decompiled: org.bouncycastle.asn1.x9.X9Curve.toASN1Primitive():org.bouncycastle.asn1.ASN1Primitive");
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}
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public byte[] getSeed() {
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return this.seed;
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}
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public ECCurve getCurve() {
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return this.curve;
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}
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private void setFieldIdentifier() {
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ASN1ObjectIdentifier aSN1ObjectIdentifier;
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if (ECAlgorithms.isFpCurve(this.curve)) {
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aSN1ObjectIdentifier = prime_field;
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} else {
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if (!ECAlgorithms.isF2mCurve(this.curve)) {
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throw new IllegalArgumentException("This type of ECCurve is not implemented");
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}
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aSN1ObjectIdentifier = characteristic_two_field;
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}
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this.fieldIdentifier = aSN1ObjectIdentifier;
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}
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public X9Curve(ECCurve eCCurve, byte[] bArr) {
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this.fieldIdentifier = null;
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this.curve = eCCurve;
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this.seed = bArr;
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setFieldIdentifier();
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}
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public X9Curve(ECCurve eCCurve) {
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this.fieldIdentifier = null;
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this.curve = eCCurve;
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this.seed = null;
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setFieldIdentifier();
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}
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public X9Curve(X9FieldID x9FieldID, ASN1Sequence aSN1Sequence) {
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int intValue;
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int i;
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int i2;
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ECCurve f2m;
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this.fieldIdentifier = null;
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ASN1ObjectIdentifier identifier = x9FieldID.getIdentifier();
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this.fieldIdentifier = identifier;
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if (identifier.equals(prime_field)) {
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BigInteger value = ((ASN1Integer) x9FieldID.getParameters()).getValue();
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f2m = new ECCurve.Fp(value, new X9FieldElement(value, (ASN1OctetString) aSN1Sequence.getObjectAt(0)).getValue().toBigInteger(), new X9FieldElement(value, (ASN1OctetString) aSN1Sequence.getObjectAt(1)).getValue().toBigInteger());
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} else {
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if (!this.fieldIdentifier.equals(characteristic_two_field)) {
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throw new IllegalArgumentException("This type of ECCurve is not implemented");
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}
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ASN1Sequence aSN1Sequence2 = ASN1Sequence.getInstance(x9FieldID.getParameters());
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int intValue2 = ((ASN1Integer) aSN1Sequence2.getObjectAt(0)).getValue().intValue();
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ASN1ObjectIdentifier aSN1ObjectIdentifier = (ASN1ObjectIdentifier) aSN1Sequence2.getObjectAt(1);
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if (aSN1ObjectIdentifier.equals(tpBasis)) {
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i = ASN1Integer.getInstance(aSN1Sequence2.getObjectAt(2)).getValue().intValue();
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i2 = 0;
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intValue = 0;
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} else {
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if (!aSN1ObjectIdentifier.equals(ppBasis)) {
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throw new IllegalArgumentException("This type of EC basis is not implemented");
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}
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ASN1Sequence aSN1Sequence3 = ASN1Sequence.getInstance(aSN1Sequence2.getObjectAt(2));
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int intValue3 = ASN1Integer.getInstance(aSN1Sequence3.getObjectAt(0)).getValue().intValue();
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int intValue4 = ASN1Integer.getInstance(aSN1Sequence3.getObjectAt(1)).getValue().intValue();
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intValue = ASN1Integer.getInstance(aSN1Sequence3.getObjectAt(2)).getValue().intValue();
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i = intValue3;
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i2 = intValue4;
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}
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int i3 = i;
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int i4 = i2;
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int i5 = intValue;
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f2m = new ECCurve.F2m(intValue2, i3, i4, i5, new X9FieldElement(intValue2, i3, i4, i5, (ASN1OctetString) aSN1Sequence.getObjectAt(0)).getValue().toBigInteger(), new X9FieldElement(intValue2, i3, i4, i5, (ASN1OctetString) aSN1Sequence.getObjectAt(1)).getValue().toBigInteger());
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}
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this.curve = f2m;
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if (aSN1Sequence.size() == 3) {
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this.seed = ((DERBitString) aSN1Sequence.getObjectAt(2)).getBytes();
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}
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}
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}
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