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  package org.bouncycastle.jcajce.provider.digest;
  
  
 public class SHA3
 {
     private SHA3()
     {
 
     }
 
     static public class DigestSHA3
         extends BCMessageDigest
         implements Cloneable
     {
         public DigestSHA3(int size)
         {
             super(new SHA3Digest(size));
         }
 
         public Object clone()
             throws CloneNotSupportedException
         {
             BCMessageDigest d = (BCMessageDigest)super.clone();
             d.digest = new SHA3Digest((SHA3Digest));
 
             return d;
         }
     }
 
     static public class Digest224
         extends DigestSHA3
     {
         public Digest224()
         {
             super(224);
         }
     }
 
     static public class Digest256
         extends DigestSHA3
     {
         public Digest256()
         {
             super(256);
         }
     }
 
     static public class Digest384
         extends DigestSHA3
     {
         public Digest384()
         {
             super(384);
         }
     }
 
     static public class Digest512
         extends DigestSHA3
     {
         public Digest512()
         {
             super(512);
         }
     }

    
SHA3 HMac
 
     public static class HashMac224
         extends BaseMac
     {
         public HashMac224()
         {
             super(new HMac(new SHA3Digest(224)));
         }
     }
 
     public static class HashMac256
         extends BaseMac
     {
         public HashMac256()
         {
             super(new HMac(new SHA3Digest(256)));
         }
     }
 
     public static class HashMac384
         extends BaseMac
     {
         public HashMac384()
         {
             super(new HMac(new SHA3Digest(384)));
         }
    }
    public static class HashMac512
        extends BaseMac
    {
        public HashMac512()
        {
            super(new HMac(new SHA3Digest(512)));
        }
    }
    public static class KeyGenerator224
        extends BaseKeyGenerator
    {
        public KeyGenerator224()
        {
            super("HMACSHA3-224", 224, new CipherKeyGenerator());
        }
    }
    public static class KeyGenerator256
        extends BaseKeyGenerator
    {
        public KeyGenerator256()
        {
            super("HMACSHA3-256", 256, new CipherKeyGenerator());
        }
    }
    public static class KeyGenerator384
        extends BaseKeyGenerator
    {
        public KeyGenerator384()
        {
            super("HMACSHA3-384", 384, new CipherKeyGenerator());
        }
    }
    public static class KeyGenerator512
        extends BaseKeyGenerator
    {
        public KeyGenerator512()
        {
            super("HMACSHA3-512", 512, new CipherKeyGenerator());
        }
    }
    public static class Mappings
        extends DigestAlgorithmProvider
    {
        private static final String PREFIX = SHA3.class.getName();
        public Mappings()
        {
        }
        public void configure(ConfigurableProvider provider)
        {
            provider.addAlgorithm("MessageDigest.SHA3-224" + "$Digest224");
            provider.addAlgorithm("MessageDigest.SHA3-256" + "$Digest256");
            provider.addAlgorithm("MessageDigest.SHA3-384" + "$Digest384");
            provider.addAlgorithm("MessageDigest.SHA3-512" + "$Digest512");
            // look for an object identifier (NIST???) for SHA3 family
            // provider.addAlgorithm("Alg.Alias.MessageDigest." + OIWObjectIdentifiers.idSHA3, "SHA3-224"); // *****
            addHMACAlgorithm(provider"SHA3-224" + "$HashMac224" + "$KeyGenerator224");
            addHMACAlgorithm(provider"SHA3-256" + "$HashMac256" + "$KeyGenerator256");
            addHMACAlgorithm(provider"SHA3-384" + "$HashMac384" + "$KeyGenerator384");
            addHMACAlgorithm(provider"SHA3-512" + "$HashMac512" + "$KeyGenerator512");
        }
    }
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