1 files changed, 139 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey.java
new file mode 100644
index 000000000..e76e087b3
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey.java
@@ -0,0 +1,139 @@
+package org.spongycastle.jcajce.provider.asymmetric.rsa;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.math.BigInteger;
+import java.security.interfaces.RSAPrivateKey;
+import java.security.spec.RSAPrivateKeySpec;
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.DERNull;
+import org.spongycastle.asn1.pkcs.PKCSObjectIdentifiers;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+import org.spongycastle.crypto.params.RSAKeyParameters;
+import org.spongycastle.jcajce.provider.asymmetric.util.KeyUtil;
+import org.spongycastle.jcajce.provider.asymmetric.util.PKCS12BagAttributeCarrierImpl;
+import org.spongycastle.jce.interfaces.PKCS12BagAttributeCarrier;
+
+public class BCRSAPrivateKey
+    implements RSAPrivateKey, PKCS12BagAttributeCarrier
+{
+    static final long serialVersionUID = 5110188922551353628L;
+
+    private static BigInteger ZERO = BigInteger.valueOf(0);
+
+    protected BigInteger modulus;
+    protected BigInteger privateExponent;
+
+    private transient PKCS12BagAttributeCarrierImpl   attrCarrier = new PKCS12BagAttributeCarrierImpl();
+
+    protected BCRSAPrivateKey()
+    {
+    }
+
+    BCRSAPrivateKey(
+        RSAKeyParameters key)
+    {
+        this.modulus = key.getModulus();
+        this.privateExponent = key.getExponent();
+    }
+
+    BCRSAPrivateKey(
+        RSAPrivateKeySpec spec)
+    {
+        this.modulus = spec.getModulus();
+        this.privateExponent = spec.getPrivateExponent();
+    }
+
+    BCRSAPrivateKey(
+        RSAPrivateKey key)
+    {
+        this.modulus = key.getModulus();
+        this.privateExponent = key.getPrivateExponent();
+    }
+
+    public BigInteger getModulus()
+    {
+        return modulus;
+    }
+
+    public BigInteger getPrivateExponent()
+    {
+        return privateExponent;
+    }
+
+    public String getAlgorithm()
+    {
+        return "RSA";
+    }
+
+    public String getFormat()
+    {
+        return "PKCS#8";
+    }
+
+    public byte[] getEncoded()
+    {
+        return KeyUtil.getEncodedPrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new org.spongycastle.asn1.pkcs.RSAPrivateKey(getModulus(), ZERO, getPrivateExponent(), ZERO, ZERO, ZERO, ZERO, ZERO));
+    }
+
+    public boolean equals(Object o)
+    {
+        if (!(o instanceof RSAPrivateKey))
+        {
+            return false;
+        }
+
+        if (o == this)
+        {
+            return true;
+        }
+
+        RSAPrivateKey key = (RSAPrivateKey)o;
+
+        return getModulus().equals(key.getModulus())
+            && getPrivateExponent().equals(key.getPrivateExponent());
+    }
+
+    public int hashCode()
+    {
+        return getModulus().hashCode() ^ getPrivateExponent().hashCode();
+    }
+
+    public void setBagAttribute(
+        ASN1ObjectIdentifier oid,
+        ASN1Encodable attribute)
+    {
+        attrCarrier.setBagAttribute(oid, attribute);
+    }
+
+    public ASN1Encodable getBagAttribute(
+        ASN1ObjectIdentifier oid)
+    {
+        return attrCarrier.getBagAttribute(oid);
+    }
+
+    public Enumeration getBagAttributeKeys()
+    {
+        return attrCarrier.getBagAttributeKeys();
+    }
+
+    private void readObject(
+        ObjectInputStream   in)
+        throws IOException, ClassNotFoundException
+    {
+        in.defaultReadObject();
+
+        this.attrCarrier = new PKCS12BagAttributeCarrierImpl();
+    }
+
+    private void writeObject(
+        ObjectOutputStream  out)
+        throws IOException
+    {
+        out.defaultWriteObject();
+    }
+}