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222 lines
8.3 KiB
222 lines
8.3 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace SogClient
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{
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/// <summary>
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/// tea加密算法
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/// </summary>
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public class XXTea
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{
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public static Byte[] Encrypt(Byte[] Data, Byte[] Key)
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{
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if (Data.Length == 0)
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{
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return Data;
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}
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return ToByteArray(Encrypt(ToUInt32Array(Data, true), ToUInt32Array(Key, false)), false);
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}
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public static Byte[] Decrypt(Byte[] Data, Byte[] Key)
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{
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if (Data.Length == 0)
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{
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return Data;
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}
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return ToByteArray(Decrypt(ToUInt32Array(Data, false), ToUInt32Array(Key, false)), true);
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}
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private static UInt32[] Encrypt(UInt32[] v, UInt32[] k)
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{
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Int32 n = v.Length - 1;
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if (n < 1)
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{
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return v;
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}
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if (k.Length < 4)
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{
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UInt32[] Key = new UInt32[4];
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k.CopyTo(Key, 0);
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k = Key;
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}
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UInt32 z = v[n], y = v[0], delta = 0x9E3779B9, sum = 0, e;
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Int32 p, q = 6 + 52 / (n + 1);
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while (q-- > 0)
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{
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sum = unchecked(sum + delta);
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e = sum >> 2 & 3;
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for (p = 0; p < n; p++)
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{
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y = v[p + 1];
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z = unchecked(v[p] += (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z));
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}
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y = v[0];
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z = unchecked(v[n] += (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z));
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}
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return v;
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}
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private static UInt32[] Decrypt(UInt32[] v, UInt32[] k)
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{
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Int32 n = v.Length - 1;
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if (n < 1)
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{
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return v;
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}
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if (k.Length < 4)
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{
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UInt32[] Key = new UInt32[4];
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k.CopyTo(Key, 0);
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k = Key;
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}
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UInt32 z = v[n], y = v[0], delta = 0x9E3779B9, sum, e;
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Int32 p, q = 6 + 52 / (n + 1);
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sum = unchecked((UInt32)(q * delta));
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while (sum != 0)
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{
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e = sum >> 2 & 3;
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for (p = n; p > 0; p--)
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{
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z = v[p - 1];
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y = unchecked(v[p] -= (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z));
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}
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z = v[n];
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y = unchecked(v[0] -= (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z));
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sum = unchecked(sum - delta);
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}
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return v;
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}
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private static UInt32[] ToUInt32Array(Byte[] Data, Boolean IncludeLength)
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{
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Int32 n = (((Data.Length & 3) == 0) ? (Data.Length >> 2) : ((Data.Length >> 2) + 1));
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UInt32[] Result;
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if (IncludeLength)
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{
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Result = new UInt32[n + 1];
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Result[n] = (UInt32)Data.Length;
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}
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else
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{
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Result = new UInt32[n];
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}
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n = Data.Length;
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for (Int32 i = 0; i < n; i++)
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{
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Result[i >> 2] |= (UInt32)Data[i] << ((i & 3) << 3);
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}
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return Result;
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}
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private static Byte[] ToByteArray(UInt32[] Data, Boolean IncludeLength)
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{
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Int32 n;
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if (IncludeLength)
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{
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n = (Int32)Data[Data.Length - 1];
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}
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else
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{
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n = Data.Length << 2;
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}
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Byte[] Result = new Byte[n];
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for (Int32 i = 0; i < n; i++)
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{
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Result[i] = (Byte)(Data[i >> 2] >> ((i & 3) << 3));
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}
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return Result;
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}
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}
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public class CRC
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{
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/// <summary>
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/// CRC高位校验码checkCRCHigh
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/// </summary>
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static byte[] ArrayCRCHigh =
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{
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
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0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
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0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
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0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
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0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
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0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
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0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
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0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
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0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
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0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
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0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
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0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
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0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
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0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
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0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
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};
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/// <summary>
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/// CRC地位校验码checkCRCLow
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/// </summary>
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static byte[] checkCRCLow =
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{
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0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
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0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
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0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
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0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
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0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
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0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
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0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
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0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
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0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
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0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
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0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
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0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
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0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
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0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
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0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
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0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
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0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
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0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
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0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
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0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
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0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
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0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
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0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
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0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
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0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
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0x43, 0x83, 0x41, 0x81, 0x80, 0x40
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};
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/// <summary>
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/// CRC校验
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/// </summary>
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/// <param name="data">校验的字节数组</param>
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/// <param name="length">校验的数组长度</param>
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/// <returns>该字节数组的奇偶校验字节</returns>
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public static ushort CRC16(byte[] data, int arrayLength)
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{
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byte CRCHigh = 0xFF;
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byte CRCLow = 0xFF;
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byte index;
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int i = 0;
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while (arrayLength-- > 0)
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{
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index = (byte)(CRCHigh ^ data[i++]);
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CRCHigh = (byte)(CRCLow ^ ArrayCRCHigh[index]);
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CRCLow = checkCRCLow[index];
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}
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return (ushort)(CRCHigh << 8 | CRCLow);
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}
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}
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}
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