final all the crypto classes

core/java/src/net/i2p/crypto/CertUtil.java

@@ -41,7 +41,7 @@ import net.i2p.util.SystemVersion;
  *
  *  @since 0.9.9
  */
-public class CertUtil {
+public final class CertUtil {
         
     private static final int LINE_LENGTH = 64;
 

core/java/src/net/i2p/crypto/CryptixAESEngine.java

@@ -36,7 +36,7 @@ import net.i2p.util.SystemVersion;
  *
  * @author jrandom, thecrypto
  */
-public class CryptixAESEngine extends AESEngine {
+public final class CryptixAESEngine extends AESEngine {
     private final static CryptixRijndael_Algorithm _algo = new CryptixRijndael_Algorithm();
     // keys are now cached in the SessionKey objects
     //private CryptixAESKeyCache _cache;

core/java/src/net/i2p/crypto/CryptoConstants.java

@@ -44,7 +44,7 @@ import net.i2p.util.NativeBigInteger;
  * See also: ECConstants, RSAConstants
  *
  */
-public class CryptoConstants {
+public final class CryptoConstants {
     public static final BigInteger dsap = new NativeBigInteger(
                                                                "9c05b2aa960d9b97b8931963c9cc9e8c3026e9b8ed92fad0a69cc886d5bf8015fcadae31"
                                                              + "a0ad18fab3f01b00a358de237655c4964afaa2b337e96ad316b9fb1cc564b5aec5b69a9f"

core/java/src/net/i2p/crypto/DSAEngine.java

@@ -72,7 +72,7 @@ import net.i2p.util.NativeBigInteger;
  *
  *  EdDSA support added in 0.9.15
  */
-public class DSAEngine {
+public final class DSAEngine {
     private final Log _log;
     private final I2PAppContext _context;
 

core/java/src/net/i2p/crypto/ECConstants.java

@@ -20,7 +20,7 @@ import net.i2p.util.NativeBigInteger;
  *
  * @since 0.9.9
  */
-class ECConstants {
+final class ECConstants {
 
     private static final boolean DEBUG = false;
 

core/java/src/net/i2p/crypto/ECUtil.java

@@ -19,7 +19,7 @@ import net.i2p.util.NativeBigInteger;
  *
  *  @since 0.9.16
  */
-class ECUtil {
+final class ECUtil {
 
     private static final BigInteger TWO = new BigInteger("2");
     private static final BigInteger THREE = new BigInteger("3");

core/java/src/net/i2p/crypto/ElGamalAESEngine.java

@@ -32,7 +32,7 @@ import net.i2p.util.SimpleByteCache;
  *
  * No, this does not extend AESEngine or CryptixAESEngine.
  */
-public class ElGamalAESEngine {
+public final class ElGamalAESEngine {
     private final Log _log;
     private final static int MIN_ENCRYPTED_SIZE = 80; // smallest possible resulting size
     private final I2PAppContext _context;

core/java/src/net/i2p/crypto/ElGamalEngine.java

@@ -52,7 +52,7 @@ import net.i2p.util.SimpleByteCache;
  * @author thecrypto, jrandom
  */
 
-public class ElGamalEngine {
+public final class ElGamalEngine {
     private final Log _log;
     private final I2PAppContext _context;
     private final YKGenerator _ykgen;

core/java/src/net/i2p/crypto/HMAC256Generator.java

@@ -21,7 +21,7 @@ import org.bouncycastle.oldcrypto.macs.I2PHMac;
  *
  * Deprecated, used only by Syndie.
  */
-public class HMAC256Generator extends HMACGenerator {
+public final class HMAC256Generator extends HMACGenerator {
 
     /**
      *  @param context unused

core/java/src/net/i2p/crypto/KeyGenerator.java

@@ -55,7 +55,7 @@ import net.i2p.util.RandomSource;
 /** Define a way of generating asymmetrical key pairs as well as symmetrical keys
  * @author jrandom
  */
-public class KeyGenerator {
+public final class KeyGenerator {
     private final I2PAppContext _context;
 
     public KeyGenerator(I2PAppContext context) {

core/java/src/net/i2p/crypto/KeyStoreUtil.java

@@ -33,7 +33,7 @@ import net.i2p.util.SystemVersion;
  *
  *  @since 0.9.9
  */
-public class KeyStoreUtil {
+public final class KeyStoreUtil {
         
     public static boolean _blacklistLogged;
 

core/java/src/net/i2p/crypto/RSAConstants.java

@@ -10,7 +10,7 @@ import net.i2p.util.NativeBigInteger;
  *
  * @since 0.9.9
  */
-class RSAConstants {
+final class RSAConstants {
 
     /**
      *  Generate a spec

core/java/src/net/i2p/crypto/SigUtil.java

@@ -50,7 +50,7 @@ import net.i2p.util.NativeBigInteger;
  *
  * @since 0.9.9, public since 0.9.12
  */
-public class SigUtil {
+public final class SigUtil {
 
     private static final Map<SigningPublicKey, ECPublicKey> _ECPubkeyCache = new LHMCache<SigningPublicKey, ECPublicKey>(64);
     private static final Map<SigningPrivateKey, ECPrivateKey> _ECPrivkeyCache = new LHMCache<SigningPrivateKey, ECPrivateKey>(16);

core/java/src/net/i2p/crypto/YKGenerator.java

@@ -35,7 +35,7 @@ import net.i2p.util.SystemVersion;
  *
  * @author jrandom
  */
-class YKGenerator {
+final class YKGenerator {
     //private final static Log _log = new Log(YKGenerator.class);
     private final int MIN_NUM_BUILDERS;
     private final int MAX_NUM_BUILDERS;

core/java/src/net/i2p/crypto/eddsa/EdDSAEngine.java

@@ -20,7 +20,7 @@ import net.i2p.crypto.eddsa.math.ScalarOps;
  * @author str4d
  *
  */
-public class EdDSAEngine extends Signature {
+public final class EdDSAEngine extends Signature {
     private MessageDigest digest;
     private final ByteArrayOutputStream baos;
     private EdDSAKey key;

core/java/src/net/i2p/crypto/eddsa/KeyFactory.java

@@ -18,7 +18,7 @@ import net.i2p.crypto.eddsa.spec.EdDSAPublicKeySpec;
  * @author str4d
  *
  */
-public class KeyFactory extends KeyFactorySpi {
+public final class KeyFactory extends KeyFactorySpi {
 
     /**
      *  As of 0.9.25, supports PKCS8EncodedKeySpec

core/java/src/net/i2p/crypto/eddsa/KeyPairGenerator.java

@@ -21,7 +21,7 @@ import net.i2p.util.RandomSource;
  *
  *  @since 0.9.15
  */
-public class KeyPairGenerator extends KeyPairGeneratorSpi {
+public final class KeyPairGenerator extends KeyPairGeneratorSpi {
     private static final int DEFAULT_STRENGTH = 256;
     private EdDSAParameterSpec edParams;
     private SecureRandom random;

core/java/src/net/i2p/crypto/elgamal/KeyFactory.java

@@ -25,7 +25,7 @@ import net.i2p.crypto.elgamal.spec.ElGamalPublicKeySpec;
  *
  * @since 0.9.25
  */
-public class KeyFactory extends KeyFactorySpi {
+public final class KeyFactory extends KeyFactorySpi {
 
     /**
      *  Supports PKCS8EncodedKeySpec

core/java/src/net/i2p/crypto/elgamal/KeyPairGenerator.java

@@ -27,7 +27,7 @@ import net.i2p.util.RandomSource;
  *
  * @since 0.9.25
  */
-public class KeyPairGenerator extends KeyPairGeneratorSpi {
+public final class KeyPairGenerator extends KeyPairGeneratorSpi {
     // always long, don't use short key
     private static final int DEFAULT_STRENGTH = 2048;
     private ElGamalParameterSpec elgParams;