263 lines
12 KiB
Java
263 lines
12 KiB
Java
package org.bouncycastle.jcajce.provider.asymmetric.ecgost;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.math.BigInteger;
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import java.security.interfaces.ECPublicKey;
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import java.security.spec.ECParameterSpec;
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import java.security.spec.EllipticCurve;
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import org.bouncycastle.asn1.ASN1Encodable;
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import org.bouncycastle.asn1.ASN1OctetString;
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import org.bouncycastle.asn1.ASN1Primitive;
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import org.bouncycastle.asn1.DERBitString;
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import org.bouncycastle.asn1.DEROctetString;
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import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
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import org.bouncycastle.asn1.cryptopro.ECGOST3410NamedCurves;
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import org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters;
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import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
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import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
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import org.bouncycastle.asn1.x9.X962Parameters;
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import org.bouncycastle.asn1.x9.X9ECParameters;
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import org.bouncycastle.crypto.params.ECDomainParameters;
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import org.bouncycastle.crypto.params.ECPublicKeyParameters;
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import org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util;
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import org.bouncycastle.jcajce.provider.asymmetric.util.KeyUtil;
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import org.bouncycastle.jce.ECGOST3410NamedCurveTable;
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import org.bouncycastle.jce.interfaces.ECPointEncoder;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import org.bouncycastle.jce.spec.ECNamedCurveParameterSpec;
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import org.bouncycastle.jce.spec.ECNamedCurveSpec;
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import org.bouncycastle.jce.spec.ECPublicKeySpec;
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import org.bouncycastle.math.ec.ECCurve;
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import org.bouncycastle.math.ec.ECPoint;
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import org.bouncycastle.util.Strings;
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/* loaded from: classes6.dex */
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public class BCECGOST3410PublicKey implements ECPublicKey, org.bouncycastle.jce.interfaces.ECPublicKey, ECPointEncoder {
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static final long serialVersionUID = 7026240464295649314L;
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private String algorithm;
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private transient ECParameterSpec ecSpec;
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private transient GOST3410PublicKeyAlgParameters gostParams;
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private transient ECPoint q;
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private boolean withCompression;
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public String toString() {
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StringBuffer stringBuffer = new StringBuffer("EC Public Key");
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String lineSeparator = Strings.lineSeparator();
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stringBuffer.append(lineSeparator);
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stringBuffer.append(" X: ").append(this.q.getAffineXCoord().toBigInteger().toString(16)).append(lineSeparator);
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stringBuffer.append(" Y: ").append(this.q.getAffineYCoord().toBigInteger().toString(16)).append(lineSeparator);
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return stringBuffer.toString();
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}
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@Override // org.bouncycastle.jce.interfaces.ECPointEncoder
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public void setPointFormat(String str) {
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this.withCompression = !"UNCOMPRESSED".equalsIgnoreCase(str);
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}
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public int hashCode() {
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return engineGetQ().hashCode() ^ engineGetSpec().hashCode();
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}
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@Override // java.security.interfaces.ECPublicKey
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public java.security.spec.ECPoint getW() {
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return new java.security.spec.ECPoint(this.q.getAffineXCoord().toBigInteger(), this.q.getAffineYCoord().toBigInteger());
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}
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@Override // org.bouncycastle.jce.interfaces.ECPublicKey
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public ECPoint getQ() {
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return this.ecSpec == null ? this.q.getDetachedPoint() : this.q;
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}
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@Override // java.security.interfaces.ECKey
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public ECParameterSpec getParams() {
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return this.ecSpec;
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}
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@Override // org.bouncycastle.jce.interfaces.ECKey
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public org.bouncycastle.jce.spec.ECParameterSpec getParameters() {
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ECParameterSpec eCParameterSpec = this.ecSpec;
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if (eCParameterSpec == null) {
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return null;
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}
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return EC5Util.convertSpec(eCParameterSpec, this.withCompression);
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}
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public GOST3410PublicKeyAlgParameters getGostParams() {
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return this.gostParams;
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}
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@Override // java.security.Key
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public String getFormat() {
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return "X.509";
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}
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@Override // java.security.Key
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public byte[] getEncoded() {
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ASN1Encodable aSN1Encodable = this.gostParams;
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if (aSN1Encodable == null) {
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ECParameterSpec eCParameterSpec = this.ecSpec;
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if (eCParameterSpec instanceof ECNamedCurveSpec) {
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aSN1Encodable = new GOST3410PublicKeyAlgParameters(ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec) eCParameterSpec).getName()), CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
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} else {
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ECCurve convertCurve = EC5Util.convertCurve(eCParameterSpec.getCurve());
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aSN1Encodable = new X962Parameters(new X9ECParameters(convertCurve, EC5Util.convertPoint(convertCurve, this.ecSpec.getGenerator(), this.withCompression), this.ecSpec.getOrder(), BigInteger.valueOf(this.ecSpec.getCofactor()), this.ecSpec.getCurve().getSeed()));
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}
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}
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BigInteger bigInteger = this.q.getAffineXCoord().toBigInteger();
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BigInteger bigInteger2 = this.q.getAffineYCoord().toBigInteger();
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byte[] bArr = new byte[64];
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extractBytes(bArr, 0, bigInteger);
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extractBytes(bArr, 32, bigInteger2);
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try {
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return KeyUtil.getEncodedSubjectPublicKeyInfo(new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, aSN1Encodable), new DEROctetString(bArr)));
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} catch (IOException unused) {
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return null;
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}
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}
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@Override // java.security.Key
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public String getAlgorithm() {
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return this.algorithm;
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}
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public boolean equals(Object obj) {
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if (!(obj instanceof BCECGOST3410PublicKey)) {
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return false;
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}
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BCECGOST3410PublicKey bCECGOST3410PublicKey = (BCECGOST3410PublicKey) obj;
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return engineGetQ().equals(bCECGOST3410PublicKey.engineGetQ()) && engineGetSpec().equals(bCECGOST3410PublicKey.engineGetSpec());
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}
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org.bouncycastle.jce.spec.ECParameterSpec engineGetSpec() {
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ECParameterSpec eCParameterSpec = this.ecSpec;
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return eCParameterSpec != null ? EC5Util.convertSpec(eCParameterSpec, this.withCompression) : BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
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}
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public ECPoint engineGetQ() {
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return this.q;
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}
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private void writeObject(ObjectOutputStream objectOutputStream) throws IOException {
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objectOutputStream.defaultWriteObject();
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objectOutputStream.writeObject(getEncoded());
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}
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private void readObject(ObjectInputStream objectInputStream) throws IOException, ClassNotFoundException {
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objectInputStream.defaultReadObject();
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populateFromPubKeyInfo(SubjectPublicKeyInfo.getInstance(ASN1Primitive.fromByteArray((byte[]) objectInputStream.readObject())));
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}
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private void populateFromPubKeyInfo(SubjectPublicKeyInfo subjectPublicKeyInfo) {
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DERBitString publicKeyData = subjectPublicKeyInfo.getPublicKeyData();
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this.algorithm = "ECGOST3410";
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try {
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byte[] octets = ((ASN1OctetString) ASN1Primitive.fromByteArray(publicKeyData.getBytes())).getOctets();
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byte[] bArr = new byte[32];
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byte[] bArr2 = new byte[32];
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for (int i = 0; i != 32; i++) {
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bArr[i] = octets[31 - i];
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}
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for (int i2 = 0; i2 != 32; i2++) {
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bArr2[i2] = octets[63 - i2];
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}
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GOST3410PublicKeyAlgParameters gOST3410PublicKeyAlgParameters = GOST3410PublicKeyAlgParameters.getInstance(subjectPublicKeyInfo.getAlgorithm().getParameters());
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this.gostParams = gOST3410PublicKeyAlgParameters;
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ECNamedCurveParameterSpec parameterSpec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gOST3410PublicKeyAlgParameters.getPublicKeyParamSet()));
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ECCurve curve = parameterSpec.getCurve();
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EllipticCurve convertCurve = EC5Util.convertCurve(curve, parameterSpec.getSeed());
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this.q = curve.createPoint(new BigInteger(1, bArr), new BigInteger(1, bArr2));
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this.ecSpec = new ECNamedCurveSpec(ECGOST3410NamedCurves.getName(this.gostParams.getPublicKeyParamSet()), convertCurve, new java.security.spec.ECPoint(parameterSpec.getG().getAffineXCoord().toBigInteger(), parameterSpec.getG().getAffineYCoord().toBigInteger()), parameterSpec.getN(), parameterSpec.getH());
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} catch (IOException unused) {
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throw new IllegalArgumentException("error recovering public key");
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}
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}
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private void extractBytes(byte[] bArr, int i, BigInteger bigInteger) {
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byte[] byteArray = bigInteger.toByteArray();
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if (byteArray.length < 32) {
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byte[] bArr2 = new byte[32];
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System.arraycopy(byteArray, 0, bArr2, 32 - byteArray.length, byteArray.length);
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byteArray = bArr2;
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}
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for (int i2 = 0; i2 != 32; i2++) {
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bArr[i + i2] = byteArray[(byteArray.length - 1) - i2];
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}
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}
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private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters eCDomainParameters) {
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return new ECParameterSpec(ellipticCurve, new java.security.spec.ECPoint(eCDomainParameters.getG().getAffineXCoord().toBigInteger(), eCDomainParameters.getG().getAffineYCoord().toBigInteger()), eCDomainParameters.getN(), eCDomainParameters.getH().intValue());
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}
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public BCECGOST3410PublicKey(ECPublicKeySpec eCPublicKeySpec) {
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ECParameterSpec eCParameterSpec;
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this.algorithm = "ECGOST3410";
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this.q = eCPublicKeySpec.getQ();
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if (eCPublicKeySpec.getParams() != null) {
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eCParameterSpec = EC5Util.convertSpec(EC5Util.convertCurve(eCPublicKeySpec.getParams().getCurve(), eCPublicKeySpec.getParams().getSeed()), eCPublicKeySpec.getParams());
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} else {
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if (this.q.getCurve() == null) {
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this.q = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa().getCurve().createPoint(this.q.getAffineXCoord().toBigInteger(), this.q.getAffineYCoord().toBigInteger());
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}
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eCParameterSpec = null;
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}
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this.ecSpec = eCParameterSpec;
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}
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public BCECGOST3410PublicKey(BCECGOST3410PublicKey bCECGOST3410PublicKey) {
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this.algorithm = "ECGOST3410";
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this.q = bCECGOST3410PublicKey.q;
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this.ecSpec = bCECGOST3410PublicKey.ecSpec;
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this.withCompression = bCECGOST3410PublicKey.withCompression;
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this.gostParams = bCECGOST3410PublicKey.gostParams;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public BCECGOST3410PublicKey(SubjectPublicKeyInfo subjectPublicKeyInfo) {
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this.algorithm = "ECGOST3410";
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populateFromPubKeyInfo(subjectPublicKeyInfo);
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}
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public BCECGOST3410PublicKey(java.security.spec.ECPublicKeySpec eCPublicKeySpec) {
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this.algorithm = "ECGOST3410";
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ECParameterSpec params = eCPublicKeySpec.getParams();
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this.ecSpec = params;
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this.q = EC5Util.convertPoint(params, eCPublicKeySpec.getW(), false);
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}
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public BCECGOST3410PublicKey(ECPublicKey eCPublicKey) {
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this.algorithm = "ECGOST3410";
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this.algorithm = eCPublicKey.getAlgorithm();
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ECParameterSpec params = eCPublicKey.getParams();
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this.ecSpec = params;
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this.q = EC5Util.convertPoint(params, eCPublicKey.getW(), false);
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}
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public BCECGOST3410PublicKey(String str, ECPublicKeyParameters eCPublicKeyParameters, org.bouncycastle.jce.spec.ECParameterSpec eCParameterSpec) {
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this.algorithm = "ECGOST3410";
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ECDomainParameters parameters = eCPublicKeyParameters.getParameters();
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this.algorithm = str;
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this.q = eCPublicKeyParameters.getQ();
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this.ecSpec = eCParameterSpec == null ? createSpec(EC5Util.convertCurve(parameters.getCurve(), parameters.getSeed()), parameters) : EC5Util.convertSpec(EC5Util.convertCurve(eCParameterSpec.getCurve(), eCParameterSpec.getSeed()), eCParameterSpec);
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}
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public BCECGOST3410PublicKey(String str, ECPublicKeyParameters eCPublicKeyParameters, ECParameterSpec eCParameterSpec) {
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this.algorithm = "ECGOST3410";
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ECDomainParameters parameters = eCPublicKeyParameters.getParameters();
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this.algorithm = str;
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this.q = eCPublicKeyParameters.getQ();
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if (eCParameterSpec == null) {
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this.ecSpec = createSpec(EC5Util.convertCurve(parameters.getCurve(), parameters.getSeed()), parameters);
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} else {
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this.ecSpec = eCParameterSpec;
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}
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}
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public BCECGOST3410PublicKey(String str, ECPublicKeyParameters eCPublicKeyParameters) {
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this.algorithm = str;
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this.q = eCPublicKeyParameters.getQ();
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this.ecSpec = null;
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}
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}
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