Fix key id and fingerprint handling, use full key ids

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java

@@ -228,7 +228,7 @@ public class PgpImportExport {
                 for (PGPSecretKey testSecretKey : new IterableIterator<PGPSecretKey>(
                         secretKeyRing.getSecretKeys())) {
                     if (!testSecretKey.isMasterKey()) {
-                        if (PgpKeyHelper.isSecretKeyPrivateEmpty(testSecretKey)) {
+                        if (testSecretKey.isPrivateKeyEmpty()) {
                             // this is bad, something is very wrong...
                             save = false;
                             status = Id.return_value.bad;

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyHelper.java

@@ -32,6 +32,7 @@ import org.spongycastle.openpgp.PGPSecretKey;
 import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.spongycastle.openpgp.PGPSignature;
 import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
@@ -415,57 +416,32 @@ public class PgpKeyHelper {
         String algorithmStr = null;
 
         switch (algorithm) {
-        case PGPPublicKey.RSA_ENCRYPT:
+            case PGPPublicKey.RSA_ENCRYPT:
-        case PGPPublicKey.RSA_GENERAL:
+            case PGPPublicKey.RSA_GENERAL:
-        case PGPPublicKey.RSA_SIGN: {
+            case PGPPublicKey.RSA_SIGN: {
-            algorithmStr = "RSA";
+                algorithmStr = "RSA";
-            break;
+                break;
-        }
+            }
 
-        case PGPPublicKey.DSA: {
+            case PGPPublicKey.DSA: {
-            algorithmStr = "DSA";
+                algorithmStr = "DSA";
-            break;
+                break;
-        }
+            }
 
-        case PGPPublicKey.ELGAMAL_ENCRYPT:
+            case PGPPublicKey.ELGAMAL_ENCRYPT:
-        case PGPPublicKey.ELGAMAL_GENERAL: {
+            case PGPPublicKey.ELGAMAL_GENERAL: {
-            algorithmStr = "ElGamal";
+                algorithmStr = "ElGamal";
-            break;
+                break;
-        }
+            }
 
-        default: {
+            default: {
-            algorithmStr = "Unknown";
+                algorithmStr = "Unknown";
-            break;
+                break;
-        }
+            }
         }
         return algorithmStr + ", " + keySize + " bit";
     }
 
-    /**
-     * Converts fingerprint to hex with whitespaces after 4 characters
-     * 
-     * @param fp
-     * @return
-     */
-    public static String convertFingerprintToHex(byte[] fp, boolean chunked) {
-        String fingerPrint = "";
-        for (int i = 0; i < fp.length; ++i) {
-            if (chunked && i != 0 && i % 10 == 0) {
-                fingerPrint += "  ";
-            } else if (chunked && i != 0 && i % 2 == 0) {
-                fingerPrint += " ";
-            }
-            String chunk = Integer.toHexString((fp[i] + 256) % 256).toUpperCase(Locale.US);
-            while (chunk.length() < 2) {
-                chunk = "0" + chunk;
-            }
-            fingerPrint += chunk;
-        }
-
-        return fingerPrint;
-
-    }
-
     public static String getFingerPrint(Context context, long keyId) {
         PGPPublicKey key = ProviderHelper.getPGPPublicKeyByKeyId(context, keyId);
         // if it is no public key get it from your own keys...
@@ -481,52 +457,68 @@ public class PgpKeyHelper {
         return convertFingerprintToHex(key.getFingerprint(), true);
     }
 
-    public static boolean isSecretKeyPrivateEmpty(PGPSecretKey secretKey) {
+    /**
-        return secretKey.isPrivateKeyEmpty();
+     * Converts fingerprint to hex (optional: with whitespaces after 4 characters)
-    }
+     * <p/>
-
+     * Fingerprint is shown using lowercase characters. Studies have shown that humans can
-//    public static boolean isSecretKeyPrivateEmpty(Context context, long keyId) {
+     * better differentiate between numbers and letters when letters are lowercase.
-//        PGPSecretKey secretKey = ProviderHelper.getPGPSecretKeyByKeyId(context, keyId);
+     *
-//        if (secretKey == null) {
+     * @param fingerprint
-//            Log.e(Constants.TAG, "Key could not be found!");
+     * @param split       split into 4 character chunks
-//            return false; // could be a public key, assume it is not empty
+     * @return
-//        }
+     */
-//        return isSecretKeyPrivateEmpty(secretKey);
+    public static String convertFingerprintToHex(byte[] fingerprint, boolean split) {
-//    }
+        String hexString = Hex.toHexString(fingerprint);
-
+        if (split) {
-    public static String convertKeyIdToHex(long keyId) {
+            hexString = hexString.replaceAll("(.{4})(?!$)", "$1 ");
-        String fingerPrint = Long.toHexString(keyId & 0xffffffffL).toUpperCase(Locale.US);
-        while (fingerPrint.length() < 8) {
-            fingerPrint = "0" + fingerPrint;
         }
-        return fingerPrint;
+
+        return hexString;
     }
 
     /**
-     * TODO: documentation
+     * Convert key id from long to 64 bit hex string
-     * 
+     * <p/>
+     * V4: "The Key ID is the low-order 64 bits of the fingerprint"
+     * <p/>
+     * see http://tools.ietf.org/html/rfc4880#section-12.2
+     *
      * @param keyId
      * @return
      */
-    public static String convertKeyToHex(long keyId) {
+    public static String convertKeyIdToHex(long keyId) {
-        return convertKeyIdToHex(keyId >> 32) + convertKeyIdToHex(keyId);
+        return "0x" + convertKeyIdToHex32bit(keyId >> 32) + convertKeyIdToHex32bit(keyId);
     }
 
-    public static long convertHexToKeyId(String data) {
+    private static String convertKeyIdToHex32bit(long keyId) {
-        int len = data.length();
+        String hexString = Long.toHexString(keyId & 0xffffffffL).toLowerCase(Locale.US);
-        String s2 = data.substring(len - 8);
+        while (hexString.length() < 8) {
-        String s1 = data.substring(0, len - 8);
+            hexString = "0" + hexString;
+        }
+        return hexString;
+    }
+
+    /**
+     * Used in HkpKeyServer to convert hex encoded key ids back to long.
+     *
+     * @param hexString
+     * @return
+     */
+    public static long convertHexToKeyId(String hexString) {
+        int len = hexString.length();
+        String s2 = hexString.substring(len - 8);
+        String s1 = hexString.substring(0, len - 8);
         return (Long.parseLong(s1, 16) << 32) | Long.parseLong(s2, 16);
     }
 
     /**
      * Splits userId string into naming part, email part, and comment part
-     * 
+     *
      * @param userId
      * @return array with naming (0), email (1), comment (2)
      */
     public static String[] splitUserId(String userId) {
-        String[] result = new String[] { null, null, null };
+        String[] result = new String[]{null, null, null};
 
         if (userId == null || userId.equals("")) {
             return result;
@@ -547,7 +539,6 @@ public class PgpKeyHelper {
             result[0] = matcher.group(1);
             result[1] = matcher.group(3);
             result[2] = matcher.group(2);
-            return result;
         }
 
         return result;

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java

@@ -341,10 +341,10 @@ public class ProviderHelper {
                                                                      long keyRingRowId, PGPSecretKey key, int rank) throws IOException {
         ContentValues values = new ContentValues();
 
-        boolean has_private = true;
+        boolean hasPrivate = true;
         if (key.isMasterKey()) {
-            if (PgpKeyHelper.isSecretKeyPrivateEmpty(key)) {
+            if (key.isPrivateKeyEmpty()) {
-                has_private = false;
+                hasPrivate = false;
             }
         }
 
@@ -352,8 +352,8 @@ public class ProviderHelper {
         values.put(Keys.IS_MASTER_KEY, key.isMasterKey());
         values.put(Keys.ALGORITHM, key.getPublicKey().getAlgorithm());
         values.put(Keys.KEY_SIZE, key.getPublicKey().getBitStrength());
-        values.put(Keys.CAN_CERTIFY, (PgpKeyHelper.isCertificationKey(key) && has_private));
+        values.put(Keys.CAN_CERTIFY, (PgpKeyHelper.isCertificationKey(key) && hasPrivate));
-        values.put(Keys.CAN_SIGN, (PgpKeyHelper.isSigningKey(key) && has_private));
+        values.put(Keys.CAN_SIGN, (PgpKeyHelper.isSigningKey(key) && hasPrivate));
         values.put(Keys.CAN_ENCRYPT, PgpKeyHelper.isEncryptionKey(key));
         values.put(Keys.IS_REVOKED, key.getPublicKey().isRevoked());
         values.put(Keys.CREATION, PgpKeyHelper.getCreationDate(key).getTime() / 1000);

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java

@@ -161,7 +161,7 @@ public class ImportKeysActivity extends DrawerActivity implements ActionBar.OnNa
             } else if (extras.containsKey(EXTRA_KEY_ID)) {
                 long keyId = intent.getLongExtra(EXTRA_KEY_ID, 0);
                 if (keyId != 0) {
-                    query = "0x" + PgpKeyHelper.convertKeyToHex(keyId);
+                    query = PgpKeyHelper.convertKeyIdToHex(keyId);
                 }
             } else if (extras.containsKey(EXTRA_FINGERPRINT)) {
                 String fingerprint = intent.getStringExtra(EXTRA_FINGERPRINT);

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java

@@ -225,7 +225,7 @@ public class ViewKeyMainFragment extends Fragment  implements
                     // get key id from MASTER_KEY_ID
                     long keyId = data.getLong(KEYS_INDEX_KEY_ID);
 
-                    String keyIdStr = "0x" + PgpKeyHelper.convertKeyIdToHex(keyId);
+                    String keyIdStr = PgpKeyHelper.convertKeyIdToHex(keyId);
                     mKeyId.setText(keyIdStr);
 
                     // get creation date from CREATION

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListEntry.java

@@ -165,7 +165,7 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
         this.revoked = pgpKeyRing.getPublicKey().isRevoked();
         this.fingerPrint = PgpKeyHelper.convertFingerprintToHex(pgpKeyRing.getPublicKey()
                 .getFingerprint(), true);
-        this.hexKeyId = "0x" + PgpKeyHelper.convertKeyIdToHex(keyId);
+        this.hexKeyId = PgpKeyHelper.convertKeyIdToHex(keyId);
         this.bitStrength = pgpKeyRing.getPublicKey().getBitStrength();
         int algorithm = pgpKeyRing.getPublicKey().getAlgorithm();
         if (algorithm == PGPPublicKey.RSA_ENCRYPT || algorithm == PGPPublicKey.RSA_GENERAL

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java

@@ -83,7 +83,7 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
         ImageView encryptIcon = (ImageView) view.findViewById(R.id.ic_encryptKey);
         ImageView signIcon = (ImageView) view.findViewById(R.id.ic_signKey);
 
-        String keyIdStr = "0x" + PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexKeyId));
+        String keyIdStr = PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexKeyId));
         String algorithmStr = PgpKeyHelper.getAlgorithmInfo(cursor.getInt(mIndexAlgorithm),
                 cursor.getInt(mIndexKeySize));
 

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java

@@ -174,9 +174,8 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
         }
 
         mAlgorithm.setText(PgpKeyHelper.getAlgorithmInfo(key));
-        String keyId1Str = PgpKeyHelper.convertKeyIdToHex(key.getKeyID());
+        String keyIdStr = PgpKeyHelper.convertKeyIdToHex(key.getKeyID());
-        String keyId2Str = PgpKeyHelper.convertKeyIdToHex(key.getKeyID() >> 32);
+        mKeyId.setText(keyIdStr);
-        mKeyId.setText(keyId1Str + " " + keyId2Str);
 
         Vector<Choice> choices = new Vector<Choice>();
         boolean isElGamalKey = (key.getPublicKey().getAlgorithm() == PGPPublicKey.ELGAMAL_ENCRYPT);

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java

@@ -226,7 +226,7 @@ public class HkpKeyServer extends KeyServer {
         HttpClient client = new DefaultHttpClient();
         try {
             HttpGet get = new HttpGet("http://" + mHost + ":" + mPort
-                    + "/pks/lookup?op=get&search=0x" + PgpKeyHelper.convertKeyToHex(keyId));
+                    + "/pks/lookup?op=get&search=0x" + PgpKeyHelper.convertKeyIdToHex(keyId));
 
             HttpResponse response = client.execute(get);
             if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {

OpenPGP-Keychain/src/main/res/layout/view_key_main_fragment.xml

@@ -92,7 +92,7 @@
             android:layout_width="wrap_content"
             android:layout_height="0dp"
             android:layout_weight="1"
-            android:stretchColumns="1">
+            android:shrinkColumns="1">
 
             <TableRow>