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using System;
using System.Security.Cryptography;
using System.Text;
class Program {
static void Test (SymmetricAlgorithm cipher)
{
if (cipher is Rijndael || cipher is Aes) {
Console.WriteLine ("Testing results wrt FIPS 197 test vectors");
FIPS197_AppendixB (cipher);
FIPS197_AppendixC1 (cipher);
FIPS197_AppendixC2 (cipher);
FIPS197_AppendixC3 (cipher);
} else {
Console.WriteLine ("No test vectors were found.");
return;
}
}
static void FIPS197_AppendixB (SymmetricAlgorithm cipher)
{
byte[] key = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };
byte[] iv = new byte[16]; // empty - not used for ECB
byte[] input = { 0x32, 0x43, 0xf6, 0xa8, 0x88, 0x5a, 0x30, 0x8d, 0x31, 0x31, 0x98, 0xa2, 0xe0, 0x37, 0x07, 0x34 };
byte[] expected = { 0x39, 0x25, 0x84, 0x1d, 0x02, 0xdc, 0x09, 0xfb, 0xdc, 0x11, 0x85, 0x97, 0x19, 0x6a, 0x0b, 0x32 };
Console.WriteLine ("FIPS 197 B: {0}",
Test (cipher, key, iv, input, expected) ? "PASS" : "FAIL");
}
// FIPS197 C.1 AES-128 (Nk=4, Nr=10)
static void FIPS197_AppendixC1 (SymmetricAlgorithm cipher)
{
byte[] key = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };
byte[] iv = new byte[16]; // empty - not used for ECB
byte[] input = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };
byte[] expected = { 0x69, 0xc4, 0xe0, 0xd8, 0x6a, 0x7b, 0x04, 0x30, 0xd8, 0xcd, 0xb7, 0x80, 0x70, 0xb4, 0xc5, 0x5a };
Console.WriteLine ("FIPS 197 C1: {0}",
Test (cipher, key, iv, input, expected) ? "PASS" : "FAIL");
}
// FIPS197 C.2 AES-192 (Nk=6, Nr=12)
static void FIPS197_AppendixC2 (SymmetricAlgorithm cipher)
{
byte[] key = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 };
byte[] iv = new byte[16]; // empty - not used for ECB
byte[] input = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };
byte[] expected = { 0xdd, 0xa9, 0x7c, 0xa4, 0x86, 0x4c, 0xdf, 0xe0, 0x6e, 0xaf, 0x70, 0xa0, 0xec, 0x0d, 0x71, 0x91 };
Console.WriteLine ("FIPS 197 C2: {0}",
Test (cipher, key, iv, input, expected) ? "PASS" : "FAIL");
}
// C.3 AES-256 (Nk=8, Nr=14)
static void FIPS197_AppendixC3 (SymmetricAlgorithm cipher)
{
byte[] key = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
byte[] iv = new byte[16]; // empty - not used for ECB
byte[] input = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };
byte[] expected = { 0x8e, 0xa2, 0xb7, 0xca, 0x51, 0x67, 0x45, 0xbf, 0xea, 0xfc, 0x49, 0x90, 0x4b, 0x49, 0x60, 0x89 };
Console.WriteLine ("FIPS 197 C3: {0}",
Test (cipher, key, iv, input, expected) ? "PASS" : "FAIL");
}
static bool Test (SymmetricAlgorithm cipher, byte[] key, byte[] iv, byte[] input, byte[] expected)
{
cipher.Mode = CipherMode.ECB;
cipher.KeySize = key.Length * 8;
cipher.Padding = PaddingMode.Zeros;
byte[] output = new byte [input.Length];
ICryptoTransform encryptor = cipher.CreateEncryptor (key, iv);
encryptor.TransformBlock (input, 0, input.Length, output, 0);
if (!Compare (output, expected))
return false;
byte[] original = new byte [output.Length];
ICryptoTransform decryptor = cipher.CreateDecryptor (key, iv);
decryptor.TransformBlock (output, 0, output.Length, original, 0);
return Compare (original, input);
}
static bool Compare (byte[] actual, byte[] expected)
{
if (actual == null)
return (expected == null);
if (expected == null)
return false;
if (actual.Length != expected.Length)
return false;
for (int i=0; i < actual.Length; i++) {
if (actual [i] != expected [i])
return false;
}
return true;
}
static void Perf (SymmetricAlgorithm cipher)
{
Console.WriteLine ("Performance tests for different block sizes, 30 seconds each");
int block = cipher.BlockSize;
while (block <= 64 * 1024 + 1) {
Speed (cipher, block);
block <<= 2;
}
}
static void Speed (SymmetricAlgorithm cipher, int block)
{
byte[] input = new byte [block];
byte[] output = new byte [block];
DateTime now = DateTime.UtcNow;
long size = 0;
ICryptoTransform transform = cipher.CreateEncryptor ();
while ((DateTime.UtcNow - now).TotalSeconds < 30) {
transform.TransformBlock (input, 0, input.Length, output, 0);
size += input.Length;
}
transform.TransformFinalBlock (input, 0, input.Length);
size += input.Length;
double speed = size / (DateTime.UtcNow - now).TotalSeconds;
Console.WriteLine ("{0}: {1}: {2} Mbytes/sec", block, cipher, speed / 1024 / 1024);
}
static void Main (string[] args)
{
foreach (string arg in args) {
SymmetricAlgorithm cipher = (SymmetricAlgorithm) CryptoConfig.CreateFromName (arg);
Console.WriteLine ("{0}: {1}", arg, cipher);
Test (cipher);
Perf (cipher);
}
}
}
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