1 files changed, 125 insertions, 0 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPKeyRing.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPKeyRing.java
new file mode 100644
index 000000000..50afce961
--- /dev/null
+++ b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPKeyRing.java
@@ -0,0 +1,125 @@
+package org.spongycastle.openpgp;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.spongycastle.bcpg.BCPGInputStream;
+import org.spongycastle.bcpg.Packet;
+import org.spongycastle.bcpg.PacketTags;
+import org.spongycastle.bcpg.SignaturePacket;
+import org.spongycastle.bcpg.TrustPacket;
+import org.spongycastle.bcpg.UserAttributePacket;
+import org.spongycastle.bcpg.UserIDPacket;
+
+public abstract class PGPKeyRing
+{
+    PGPKeyRing()
+    {
+    }
+
+    static BCPGInputStream wrap(InputStream in)
+    {
+        if (in instanceof BCPGInputStream)
+        {
+            return (BCPGInputStream)in;
+        }
+
+        return new BCPGInputStream(in);
+    }
+
+    static TrustPacket readOptionalTrustPacket(
+        BCPGInputStream pIn)
+        throws IOException
+    {
+        return (pIn.nextPacketTag() == PacketTags.TRUST)
+            ?   (TrustPacket) pIn.readPacket()
+            :   null;
+    }
+
+    static List readSignaturesAndTrust(
+        BCPGInputStream pIn)
+        throws IOException
+    {
+        try
+        {
+            List sigList = new ArrayList();
+
+            while (pIn.nextPacketTag() == PacketTags.SIGNATURE)
+            {
+                SignaturePacket signaturePacket = (SignaturePacket)pIn.readPacket();
+                TrustPacket trustPacket = readOptionalTrustPacket(pIn);
+
+                sigList.add(new PGPSignature(signaturePacket, trustPacket));
+            }
+
+            return sigList;
+        }
+        catch (PGPException e)
+        {
+            throw new IOException("can't create signature object: " + e.getMessage()
+                + ", cause: " + e.getUnderlyingException().toString());
+        }
+    }
+
+    static void readUserIDs(
+        BCPGInputStream pIn,
+        List ids,
+        List idTrusts,
+        List idSigs)
+        throws IOException
+    {
+        while (pIn.nextPacketTag() == PacketTags.USER_ID
+            || pIn.nextPacketTag() == PacketTags.USER_ATTRIBUTE)
+        {
+            Packet obj = pIn.readPacket();
+            if (obj instanceof UserIDPacket)
+            {
+                UserIDPacket id = (UserIDPacket)obj;
+                ids.add(id.getID());
+            }
+            else
+            {
+                UserAttributePacket user = (UserAttributePacket)obj;
+                ids.add(new PGPUserAttributeSubpacketVector(user.getSubpackets()));
+            }
+
+            idTrusts.add(readOptionalTrustPacket(pIn));
+            idSigs.add(readSignaturesAndTrust(pIn));
+        }
+    }
+
+    /**
+        * Return the first public key in the ring.  In the case of a {@link PGPSecretKeyRing}
+        * this is also the public key of the master key pair.
+        *
+        * @return PGPPublicKey
+        */
+    public abstract PGPPublicKey getPublicKey();
+
+    /**
+        * Return an iterator containing all the public keys.
+        *
+        * @return Iterator
+        */
+    public abstract Iterator getPublicKeys();
+
+    /**
+        * Return the public key referred to by the passed in keyID if it
+        * is present.
+        *
+        * @param keyID
+        * @return PGPPublicKey
+        */
+    public abstract PGPPublicKey getPublicKey(long keyID);
+
+    public abstract void encode(OutputStream outStream)
+        throws IOException;
+
+    public abstract byte[] getEncoded()
+        throws IOException;
+
+}
+\ No newline at end of file