1 files changed, 91 insertions, 0 deletions
diff --git a/pg/src/main/java/org/spongycastle/bcpg/RSAPublicBCPGKey.java b/pg/src/main/java/org/spongycastle/bcpg/RSAPublicBCPGKey.java
new file mode 100644
index 00000000..e6eed70f
--- /dev/null
+++ b/pg/src/main/java/org/spongycastle/bcpg/RSAPublicBCPGKey.java
@@ -0,0 +1,91 @@
+package org.spongycastle.bcpg;
+
+import java.math.BigInteger;
+import java.io.*;
+
+/**
+ * base class for an RSA Public Key.
+ */
+public class RSAPublicBCPGKey 
+    extends BCPGObject implements BCPGKey 
+{
+    MPInteger    n;
+    MPInteger    e;
+    
+    /**
+     * Construct an RSA public key from the passed in stream.
+     * 
+     * @param in
+     * @throws IOException
+     */
+    public RSAPublicBCPGKey(
+        BCPGInputStream    in)
+        throws IOException
+    {
+        this.n = new MPInteger(in);
+        this.e = new MPInteger(in);
+    }
+
+    /**
+     * 
+     * @param n the modulus
+     * @param e the public exponent
+     */
+    public RSAPublicBCPGKey(
+        BigInteger    n,
+        BigInteger    e)
+    {
+        this.n = new MPInteger(n);
+        this.e = new MPInteger(e);
+    }
+    
+    public BigInteger getPublicExponent()
+    {
+        return e.getValue();
+    }
+    
+    public BigInteger getModulus()
+    {
+        return n.getValue();
+    }
+    
+    /**
+     *  return "PGP"
+     * 
+     * @see org.spongycastle.bcpg.BCPGKey#getFormat()
+     */
+    public String getFormat() 
+    {
+        return "PGP";
+    }
+
+    /**
+     * return the standard PGP encoding of the key.
+     * 
+     * @see org.spongycastle.bcpg.BCPGKey#getEncoded()
+     */
+    public byte[] getEncoded() 
+    {
+        try
+        { 
+            ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+            BCPGOutputStream         pgpOut = new BCPGOutputStream(bOut);
+        
+            pgpOut.writeObject(this);
+        
+            return bOut.toByteArray();
+        }
+        catch (IOException e)
+        {
+            return null;
+        }
+    }
+    
+    public void encode(
+        BCPGOutputStream    out)
+        throws IOException
+    {
+        out.writeObject(n);
+        out.writeObject(e);
+    }
+}