Example #1
0
        public static void ARIA_test()
        {
            byte[] p  = new byte[16];
            byte[] c  = new byte[16];
            byte[] mk = new byte[32];

            bool       flag     = false;
            TextWriter writer   = Console.Out;
            ARIAEngine instance = new ARIAEngine(256);

            for (int i = 0; i < 32; i++)
            {
                mk[i] = 0;
            }
            for (int i = 0; i < 16; i++)
            {
                p[i] = 0;
            }

            writer.WriteLine("BEGIN testing the roundtrip...");
            writer.WriteLine("For key size of 256 bits, starting with " +
                             "the zero plaintext and the zero key, let's see if " +
                             "we may recover the plaintext by decrypting the " +
                             "encrypted ciphertext.");
            instance.SetKey(mk);
            instance.SetupRoundKeys();

            writer.Write("plaintext : "); PrintBlock(writer, p); writer.WriteLine();
            instance.Encrypt(p, 0, c, 0);
            writer.Write("ciphertext: "); PrintBlock(writer, c); writer.WriteLine();
            instance.Decrypt(c, 0, p, 0);
            writer.Write("decrypted : "); PrintBlock(writer, p); writer.WriteLine();
            flag = false;
            for (int i = 0; i < 16; i++)
            {
                if (p[i] != 0)
                {
                    flag = true;
                }
            }
            if (flag)
            {
                writer.WriteLine("The result is incorrect!");
            }
            else
            {
                writer.WriteLine("Okay.  The result is correct.");
            }
            writer.WriteLine("END   testing the roundtrip.\n");

            int TEST_NUM = 0x800000;

            writer.WriteLine("BEGIN speed measurement...");

            for (int i = 0; i < 16; i++)
            {
                mk[i] = (byte)i;
            }
            writer.WriteLine("  First, EncKeySetup():");
            writer.Write("  masterkey: "); PrintBlock(writer, mk); writer.WriteLine();
            instance.Reset(); instance.SetKeySize(128);
            instance.SetKey(mk);
            for (int i = 0; i < 1000; i++)
            {
                instance.SetupEncRoundKeys();                             // allow the CPU to settle down
            }
            DateTime start = DateTime.Now;

            for (int i = 0; i < TEST_NUM; i++)
            {
                instance.SetupEncRoundKeys();
            }
            DateTime fin   = DateTime.Now;
            float    lapse = (float)((fin - start).Milliseconds) / 1000;

            writer.Write("  time lapsed: "); writer.Write(lapse); writer.WriteLine(" sec.");
            writer.Write("  speed      : "); writer.Write(TEST_NUM * 128 / (lapse * 1024 * 1024)); writer.WriteLine(" megabits/sec.\n");

            writer.WriteLine("  Next, Crypt():");
            for (int i = 0; i < 16; i++)
            {
                p[i] = (byte)((i << 4) ^ i);
            }
            writer.Write("  plaintext : "); PrintBlock(writer, p); writer.WriteLine();
            for (int i = 0; i < 1000; i++)
            {
                instance.Encrypt(p, 0, c, 0);
            }
            start = DateTime.Now;
            for (int i = 0; i < TEST_NUM; i++)
            {
                instance.Encrypt(p, 0, c, 0);
            }
            fin = DateTime.Now;
            writer.Write("  ciphertext: "); PrintBlock(writer, c); writer.WriteLine();
            lapse = (float)((fin - start).Milliseconds) / 1000;
            writer.Write("  time lapsed: "); writer.Write(lapse); writer.WriteLine(" sec.");
            writer.Write("  speed      : "); writer.Write(TEST_NUM * 128 / (lapse * 1024 * 1024)); writer.WriteLine(" megabits/sec.\n");

            writer.WriteLine("  Finally, DecKeySetup():");
            for (int i = 0; i < 1000; i++)
            {
                instance.SetupDecRoundKeys();                             // allow the CPU to settle down
            }
            start = DateTime.Now;
            for (int i = 0; i < TEST_NUM; i++)
            {
                instance.SetupDecRoundKeys();
            }
            fin   = DateTime.Now;
            lapse = (float)((fin - start).Milliseconds) / 1000;
            writer.Write("  time lapsed: "); writer.Write(lapse); writer.WriteLine(" sec.");
            writer.Write("  speed      : "); writer.Write(TEST_NUM * 128 / (lapse * 1024 * 1024)); writer.WriteLine(" megabits/sec.");
            writer.WriteLine("END   speed measurement.");
        }
Example #2
0
 private void Init(byte[] key)
 {
     engine = new ARIAEngine(key.Length * 8);
     engine.SetKey(key);
     engine.SetupRoundKeys();
 }