using System;
using System.Diagnostics;

class Program
{
    static void Main(string[] args)
    {
        /*
         * This is 5-bit SHAKE128 test from http://csrc.nist.gov/groups/ST/toolkit/examples.html#aHashing
         */
        byte[] test = new byte[168];
        test[0] = 0xf3;
        test[1] = 0x3;
        test[167] = 0x80;

        byte[] known_answer = {
            0x2E, 0x0A, 0xBF, 0xBA, 0x83, 0xE6, 0x72, 0x0B,
            0xFB, 0xC2, 0x25, 0xFF, 0x6B, 0x7A, 0xB9, 0xFF,
            0xCE, 0x58, 0xBA, 0x02, 0x7E, 0xE3, 0xD8, 0x98,
            0x76, 0x4F, 0xEF, 0x28, 0x7D, 0xDE, 0xCC, 0xCA,
            0x3E, 0x6E, 0x59, 0x98, 0x41, 0x1E, 0x7D, 0xDB,
            0x32, 0xF6, 0x75, 0x38, 0xF5, 0x00, 0xB1, 0x8C,
            0x8C, 0x97, 0xC4, 0x52, 0xC3, 0x70, 0xEA, 0x2C,
            0xF0, 0xAF, 0xCA, 0x3E, 0x05, 0xDE, 0x7E, 0x4D,
            0xE2, 0x7F, 0xA4, 0x41, 0xA9, 0xCB, 0x34, 0xFD,
            0x17, 0xC9, 0x78, 0xB4, 0x2D, 0x5B, 0x7E, 0x7F,
            0x9A, 0xB1, 0x8F, 0xFE, 0xFF, 0xC3, 0xC5, 0xAC,
            0x2F, 0x3A, 0x45, 0x5E, 0xEB, 0xFD, 0xC7, 0x6C,
            0xEA, 0xEB, 0x0A, 0x2C, 0xCA, 0x22, 0xEE, 0xF6,
            0xE6, 0x37, 0xF4, 0xCA, 0xBE, 0x5C, 0x51, 0xDE,
            0xD2, 0xE3, 0xFA, 0xD8, 0xB9, 0x52, 0x70, 0xA3,
            0x21, 0x84, 0x56, 0x64, 0xF1, 0x07, 0xD1, 0x64,
            0x96, 0xBB, 0x7A, 0xBF, 0xBE, 0x75, 0x04, 0xB6,
            0xED, 0xE2, 0xE8, 0x9E, 0x4B, 0x99, 0x6F, 0xB5,
            0x8E, 0xFD, 0xC4, 0x18, 0x1F, 0x91, 0x63, 0x38,
            0x1C, 0xBE, 0x7B, 0xC0, 0x06, 0xA7, 0xA2, 0x05,
            0x98, 0x9C, 0x52, 0x6C, 0xD1, 0xBD, 0x68, 0x98,
            0x36, 0x93, 0xB4, 0xBD, 0xC5, 0x37, 0x28, 0xB2,
            0x41, 0xC1, 0xCF, 0xF4, 0x2B, 0xB6, 0x11, 0x50,
            0x2C, 0x35, 0x20, 0x5C, 0xAB, 0xB2, 0x88, 0x75,
            0x56, 0x55, 0xD6, 0x20, 0xC6, 0x79, 0x94, 0xF0,
            0x64, 0x51, 0x18, 0x7F, 0x6F, 0xD1, 0x7E, 0x04,
            0x66, 0x82, 0xBA, 0x12, 0x86, 0x06, 0x3F, 0xF8,
            0x8F, 0xE2, 0x50, 0x8D, 0x1F, 0xCA, 0xF9, 0x03,
            0x5A, 0x12, 0x31, 0xAD, 0x41, 0x50, 0xA9, 0xC9,
            0xB2, 0x4C, 0x9B, 0x2D, 0x66, 0xB2, 0xAD, 0x1B,
            0xDE, 0x0B, 0xD0, 0xBB, 0xCB, 0x8B, 0xE0, 0x5B,
            0x83, 0x52, 0x29, 0xEF, 0x79, 0x19, 0x73, 0x73,
            0x23, 0x42, 0x44, 0x01, 0xE1, 0xD8, 0x37, 0xB6,
            0x6E, 0xB4, 0xE6, 0x30, 0xFF, 0x1D, 0xE7, 0x0C,
            0xB3, 0x17, 0xC2, 0xBA, 0xCB, 0x08, 0x00, 0x1D,
            0x34, 0x77, 0xB7, 0xA7, 0x0A, 0x57, 0x6D, 0x20,
            0x86, 0x90, 0x33, 0x58, 0x9D, 0x85, 0xA0, 0x1D,
            0xDB, 0x2B, 0x66, 0x46, 0xC0, 0x43, 0xB5, 0x9F,
            0xC0, 0x11, 0x31, 0x1D, 0xA6, 0x66, 0xFA, 0x5A,
            0xD1, 0xD6, 0x38, 0x7F, 0xA9, 0xBC, 0x40, 0x15,
            0xA3, 0x8A, 0x51, 0xD1, 0xDA, 0x1E, 0xA6, 0x1D,
            0x64, 0x8D, 0xC8, 0xE3, 0x9A, 0x88, 0xB9, 0xD6,
            0x22, 0xBD, 0xE2, 0x07, 0xFD, 0xAB, 0xC6, 0xF2,
            0x82, 0x7A, 0x88, 0x0C, 0x33, 0x0B, 0xBF, 0x6D,
            0xF7, 0x33, 0x77, 0x4B, 0x65, 0x3E, 0x57, 0x30,
            0x5D, 0x78, 0xDC, 0xE1, 0x12, 0xF1, 0x0A, 0x2C,
            0x71, 0xF4, 0xCD, 0xAD, 0x92, 0xED, 0x11, 0x3E,
            0x1C, 0xEA, 0x63, 0xB9, 0x19, 0x25, 0xED, 0x28,
            0x19, 0x1E, 0x6D, 0xBB, 0xB5, 0xAA, 0x5A, 0x2A,
            0xFD, 0xA5, 0x1F, 0xC0, 0x5A, 0x3A, 0xF5, 0x25,
            0x8B, 0x87, 0x66, 0x52, 0x43, 0x55, 0x0F, 0x28,
            0x94, 0x8A, 0xE2, 0xB8, 0xBE, 0xB6, 0xBC, 0x9C,
            0x77, 0x0B, 0x35, 0xF0, 0x67, 0xEA, 0xA6, 0x41,
            0xEF, 0xE6, 0x5B, 0x1A, 0x44, 0x90, 0x9D, 0x1B,
            0x14, 0x9F, 0x97, 0xEE, 0xA6, 0x01, 0x39, 0x1C,
            0x60, 0x9E, 0xC8, 0x1D, 0x19, 0x30, 0xF5, 0x7C,
            0x18, 0xA4, 0xE0, 0xFA, 0xB4, 0x91, 0xD1, 0xCA,
            0xDF, 0xD5, 0x04, 0x83, 0x44, 0x9E, 0xDC, 0x0F,
            0x07, 0xFF, 0xB2, 0x4D, 0x2C, 0x6F, 0x9A, 0x9A,
            0x3B, 0xFF, 0x39, 0xAE, 0x3D, 0x57, 0xF5, 0x60,
            0x65, 0x4D, 0x7D, 0x75, 0xC9, 0x08, 0xAB, 0xE6,
            0x25, 0x64, 0x75, 0x3E, 0xAC, 0x39, 0xD7, 0x50,
            0x3D, 0xA6, 0xD3, 0x7C, 0x2E, 0x32, 0xE1, 0xAF,
            0x3B, 0x8A, 0xEC, 0x8A, 0xE3, 0x06, 0x9C, 0xD9
        };

        Console.WriteLine(IntPtr.Size == 8 ? "64-bit platform"
                                           : "32-bit platform");

        var ctx = new SHA3.CIL();
        ctx.Absorb(test, 168);

        byte[] res = new byte[known_answer.Length];
        ctx.Squeeze(res, 168);

        int i;
        for (i = 0; i < known_answer.Length; i++) {
            if (res[i] != known_answer[i]) {
                Console.WriteLine("failure @ {0}", i);
                break;
            }
        }

        ctx = new SHA3.CIL();
        byte[] junk = new byte[136 * 120];
        var sw = new Stopwatch();

        sw.Start();
        for (i = 0; i < 10000; i++)
            ctx.Absorb(junk, 136);
        sw.Stop();

        Console.WriteLine("{0} / {1} = {2} mb/s",
                          (ulong)i * (ulong)junk.Length,
                          sw.ElapsedMilliseconds * 1e-3,
                          junk.Length * (i / (sw.ElapsedMilliseconds * 1e3)));
    }
}