1 files changed, 112 insertions, 0 deletions
diff --git a/pg/src/main/java/org/spongycastle/openpgp/examples/RSAKeyPairGenerator.java b/pg/src/main/java/org/spongycastle/openpgp/examples/RSAKeyPairGenerator.java
new file mode 100644
index 00000000..de653453
--- /dev/null
+++ b/pg/src/main/java/org/spongycastle/openpgp/examples/RSAKeyPairGenerator.java
@@ -0,0 +1,112 @@
+package org.spongycastle.openpgp.examples;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.security.InvalidKeyException;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchProviderException;
+import java.security.Security;
+import java.security.SignatureException;
+import java.util.Date;
+
+import org.spongycastle.bcpg.ArmoredOutputStream;
+import org.spongycastle.bcpg.HashAlgorithmTags;
+import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.spongycastle.openpgp.PGPEncryptedData;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPKeyPair;
+import org.spongycastle.openpgp.PGPPublicKey;
+import org.spongycastle.openpgp.PGPSecretKey;
+import org.spongycastle.openpgp.PGPSignature;
+import org.spongycastle.openpgp.operator.PGPDigestCalculator;
+import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
+import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.spongycastle.openpgp.operator.jcajce.JcaPGPKeyPair;
+import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
+
+/**
+ * A simple utility class that generates a RSA PGPPublicKey/PGPSecretKey pair.
+ * <p>
+ * usage: RSAKeyPairGenerator [-a] identity passPhrase
+ * <p>
+ * Where identity is the name to be associated with the public key. The keys are placed 
+ * in the files pub.[asc|bpg] and secret.[asc|bpg].
+ */
+public class RSAKeyPairGenerator
+{
+    private static void exportKeyPair(
+        OutputStream    secretOut,
+        OutputStream    publicOut,
+        KeyPair         pair,
+        String          identity,
+        char[]          passPhrase,
+        boolean         armor)
+        throws IOException, InvalidKeyException, NoSuchProviderException, SignatureException, PGPException
+    {    
+        if (armor)
+        {
+            secretOut = new ArmoredOutputStream(secretOut);
+        }
+
+        PGPDigestCalculator sha1Calc = new JcaPGPDigestCalculatorProviderBuilder().build().get(HashAlgorithmTags.SHA1);
+        PGPKeyPair          keyPair = new JcaPGPKeyPair(PGPPublicKey.RSA_GENERAL, pair, new Date());
+        PGPSecretKey        secretKey = new PGPSecretKey(PGPSignature.DEFAULT_CERTIFICATION, keyPair, identity, sha1Calc, null, null, new JcaPGPContentSignerBuilder(keyPair.getPublicKey().getAlgorithm(), HashAlgorithmTags.SHA1), new JcePBESecretKeyEncryptorBuilder(PGPEncryptedData.CAST5, sha1Calc).setProvider("SC").build(passPhrase));
+        
+        secretKey.encode(secretOut);
+        
+        secretOut.close();
+        
+        if (armor)
+        {
+            publicOut = new ArmoredOutputStream(publicOut);
+        }
+
+        PGPPublicKey    key = secretKey.getPublicKey();
+        
+        key.encode(publicOut);
+        
+        publicOut.close();
+    }
+    
+    public static void main(
+        String[] args)
+        throws Exception
+    {
+        Security.addProvider(new BouncyCastleProvider());
+
+        KeyPairGenerator    kpg = KeyPairGenerator.getInstance("RSA", "SC");
+        
+        kpg.initialize(1024);
+        
+        KeyPair                    kp = kpg.generateKeyPair();
+        
+        if (args.length < 2)
+        {
+            System.out.println("RSAKeyPairGenerator [-a] identity passPhrase");
+            System.exit(0);
+        }
+        
+        if (args[0].equals("-a"))
+        {
+            if (args.length < 3)
+            {
+                System.out.println("RSAKeyPairGenerator [-a] identity passPhrase");
+                System.exit(0);
+            }
+            
+            FileOutputStream    out1 = new FileOutputStream("secret.asc");
+            FileOutputStream    out2 = new FileOutputStream("pub.asc");
+            
+            exportKeyPair(out1, out2, kp, args[1], args[2].toCharArray(), true);
+        }
+        else
+        {
+            FileOutputStream    out1 = new FileOutputStream("secret.bpg");
+            FileOutputStream    out2 = new FileOutputStream("pub.bpg");
+            
+            exportKeyPair(out1, out2, kp, args[0], args[1].toCharArray(), false);
+        }
+    }
+}