From 615b6b7361c0bbb00a359a47e045a248110218ce Mon Sep 17 00:00:00 2001
From: Björn Hagemeister
Date: Wed, 15 Oct 2014 13:31:41 +0200
Subject: completed implementing --checkConfig command line option.

---
 src/main/java/org/openslx/satellitedaemon/App.java      | 15 ++++++++-------
 src/main/java/org/openslx/satellitedaemon/Identity.java | 15 +++++++++++++++
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/src/main/java/org/openslx/satellitedaemon/App.java b/src/main/java/org/openslx/satellitedaemon/App.java
index 7c87401..6a4ebf4 100644
--- a/src/main/java/org/openslx/satellitedaemon/App.java
+++ b/src/main/java/org/openslx/satellitedaemon/App.java
@@ -109,25 +109,26 @@ public class App
 	private static boolean checkConfig() {
 		if (Identity.getOrganizationName() == null)
 			return false;
-		// TODO: check members of identity.java.
-		// Testing encryption and description
+		// First check existing members (modulus, privExp, pubExp) of Identity.
+		if (!Identity.checkMembers())
+			return false;
+		
+		// Testing encryption and description with given public and private key.
+		// Idea: creating random text for encrypting and decrypting again.
       Random rnd = new Random();
       if (Identity.keySize() != -1) {
 	      int size = rnd.nextInt(Identity.keySize() - 1);
 	      BigInteger text = new BigInteger(size,rnd);
 	      RSAPublicKey pub = (RSAPublicKey) Identity.getPublicKey();
 	      RSAPrivateKey priv = (RSAPrivateKey) Identity.getPrivateKey();
+	      // Encrypt.
 	      BigInteger cipher = text.modPow(pub.getPublicExponent(), pub.getModulus());
+	      // Decrypt again.
 	      BigInteger decrypted = cipher.modPow(priv.getPrivateExponent(), priv.getModulus());
 	      boolean isPassed = text.equals(decrypted);
 	      return isPassed;
       }
       return false;
-//	      System.out.println("--- RSA encryption test ---");
-//	      System.out.println("Is test passed: "+isPassed);
-//	      System.out.println("Original text: "+text);
-//	      System.out.println("Cipher text: "+cipher);
-//	      System.out.println("Decrypted text: "+decrypted);
 	}
 	
 	private static boolean genId(String organizationName) {
diff --git a/src/main/java/org/openslx/satellitedaemon/Identity.java b/src/main/java/org/openslx/satellitedaemon/Identity.java
index b79ad68..92bf425 100644
--- a/src/main/java/org/openslx/satellitedaemon/Identity.java
+++ b/src/main/java/org/openslx/satellitedaemon/Identity.java
@@ -97,12 +97,27 @@ public class Identity
 		return akh.getPublicKey();
 	}
 
+	/**
+	 * Get bit - length of key.
+	 * @return
+	 */
 	public static int keySize() {
 		if (getModulus() != null) 
 			return getModulus().bitLength();
 		return -1;
 	}
 	
+	public static boolean checkMembers() {
+		return (
+				(getModulus() != null) &&
+				(getPrivateExponent() != null) &&
+				(getPublicExponent() != null));
+	}
+	/**
+	 * Get BigInteger of read String number.
+	 * @param str
+	 * @return
+	 */
 	private static BigInteger toBigInt( String str )
 	{
 		try {
-- 
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