Welcome to mirror list, hosted at ThFree Co, Russian Federation.

gitlab.com/quite/humla-spongycastle.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jce/provider/JCEDHPublicKey.java')
-rw-r--r--prov/src/main/java/org/bouncycastle/jce/provider/JCEDHPublicKey.java178
1 files changed, 0 insertions, 178 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jce/provider/JCEDHPublicKey.java b/prov/src/main/java/org/bouncycastle/jce/provider/JCEDHPublicKey.java
deleted file mode 100644
index 3e6a09a6..00000000
--- a/prov/src/main/java/org/bouncycastle/jce/provider/JCEDHPublicKey.java
+++ /dev/null
@@ -1,178 +0,0 @@
-package org.bouncycastle.jce.provider;
-
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.math.BigInteger;
-
-import javax.crypto.interfaces.DHPublicKey;
-import javax.crypto.spec.DHParameterSpec;
-import javax.crypto.spec.DHPublicKeySpec;
-
-import org.bouncycastle.asn1.ASN1Integer;
-import org.bouncycastle.asn1.ASN1ObjectIdentifier;
-import org.bouncycastle.asn1.ASN1Sequence;
-import org.bouncycastle.asn1.pkcs.DHParameter;
-import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
-import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
-import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
-import org.bouncycastle.asn1.x9.DHDomainParameters;
-import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
-import org.bouncycastle.crypto.params.DHPublicKeyParameters;
-import org.bouncycastle.jcajce.provider.asymmetric.util.KeyUtil;
-
-public class JCEDHPublicKey
- implements DHPublicKey
-{
- static final long serialVersionUID = -216691575254424324L;
-
- private BigInteger y;
- private DHParameterSpec dhSpec;
- private SubjectPublicKeyInfo info;
-
- JCEDHPublicKey(
- DHPublicKeySpec spec)
- {
- this.y = spec.getY();
- this.dhSpec = new DHParameterSpec(spec.getP(), spec.getG());
- }
-
- JCEDHPublicKey(
- DHPublicKey key)
- {
- this.y = key.getY();
- this.dhSpec = key.getParams();
- }
-
- JCEDHPublicKey(
- DHPublicKeyParameters params)
- {
- this.y = params.getY();
- this.dhSpec = new DHParameterSpec(params.getParameters().getP(), params.getParameters().getG(), params.getParameters().getL());
- }
-
- JCEDHPublicKey(
- BigInteger y,
- DHParameterSpec dhSpec)
- {
- this.y = y;
- this.dhSpec = dhSpec;
- }
-
- JCEDHPublicKey(
- SubjectPublicKeyInfo info)
- {
- this.info = info;
-
- ASN1Integer derY;
- try
- {
- derY = (ASN1Integer)info.parsePublicKey();
- }
- catch (IOException e)
- {
- throw new IllegalArgumentException("invalid info structure in DH public key");
- }
-
- this.y = derY.getValue();
-
- ASN1Sequence seq = ASN1Sequence.getInstance(info.getAlgorithmId().getParameters());
- ASN1ObjectIdentifier id = info.getAlgorithmId().getAlgorithm();
-
- // we need the PKCS check to handle older keys marked with the X9 oid.
- if (id.equals(PKCSObjectIdentifiers.dhKeyAgreement) || isPKCSParam(seq))
- {
- DHParameter params = DHParameter.getInstance(seq);
-
- if (params.getL() != null)
- {
- this.dhSpec = new DHParameterSpec(params.getP(), params.getG(), params.getL().intValue());
- }
- else
- {
- this.dhSpec = new DHParameterSpec(params.getP(), params.getG());
- }
- }
- else if (id.equals(X9ObjectIdentifiers.dhpublicnumber))
- {
- DHDomainParameters params = DHDomainParameters.getInstance(seq);
-
- this.dhSpec = new DHParameterSpec(params.getP().getValue(), params.getG().getValue());
- }
- else
- {
- throw new IllegalArgumentException("unknown algorithm type: " + id);
- }
- }
-
- public String getAlgorithm()
- {
- return "DH";
- }
-
- public String getFormat()
- {
- return "X.509";
- }
-
- public byte[] getEncoded()
- {
- if (info != null)
- {
- return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
- }
-
- return KeyUtil.getEncodedSubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.dhKeyAgreement, new DHParameter(dhSpec.getP(), dhSpec.getG(), dhSpec.getL())), new ASN1Integer(y));
- }
-
- public DHParameterSpec getParams()
- {
- return dhSpec;
- }
-
- public BigInteger getY()
- {
- return y;
- }
-
- private boolean isPKCSParam(ASN1Sequence seq)
- {
- if (seq.size() == 2)
- {
- return true;
- }
-
- if (seq.size() > 3)
- {
- return false;
- }
-
- ASN1Integer l = ASN1Integer.getInstance(seq.getObjectAt(2));
- ASN1Integer p = ASN1Integer.getInstance(seq.getObjectAt(0));
-
- if (l.getValue().compareTo(BigInteger.valueOf(p.getValue().bitLength())) > 0)
- {
- return false;
- }
-
- return true;
- }
-
- private void readObject(
- ObjectInputStream in)
- throws IOException, ClassNotFoundException
- {
- this.y = (BigInteger)in.readObject();
- this.dhSpec = new DHParameterSpec((BigInteger)in.readObject(), (BigInteger)in.readObject(), in.readInt());
- }
-
- private void writeObject(
- ObjectOutputStream out)
- throws IOException
- {
- out.writeObject(this.getY());
- out.writeObject(dhSpec.getP());
- out.writeObject(dhSpec.getG());
- out.writeInt(dhSpec.getL());
- }
-}