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.");
}
private void Init(byte[] key)
{
engine = new ARIAEngine(key.Length * 8);
engine.SetKey(key);
engine.SetupRoundKeys();
}