374 lines
14 KiB
C#
374 lines
14 KiB
C#
using System;
|
||
using System.Collections.Generic;
|
||
using System.IO;
|
||
using System.Linq;
|
||
using System.Text;
|
||
using System.Threading.Tasks;
|
||
|
||
namespace 垂直剖面面浮标网口升级
|
||
{
|
||
//示例：
|
||
// MD5.Encrypt("a"); // 计算字符串MD5值
|
||
// MD5.Encrypt(new FileInfo("D:\\1.rar")); // 计算文件MD5值
|
||
// MD5.Encrypt(byte[] Bytes); // 计算Byte数组MD5值
|
||
|
||
//MD5 ("") = d41d8cd98f00b204e9800998ecf8427e
|
||
//MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661
|
||
//MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72
|
||
//MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0
|
||
//MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b
|
||
class MD5
|
||
{
|
||
|
||
#region MD5调用接口
|
||
|
||
/// <summary>
|
||
/// 计算data的MD5值
|
||
/// </summary>
|
||
public static string Encrypt(string data)
|
||
{
|
||
uint[] X = To16Array(data);
|
||
return calculate(X);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 计算byte数组的MD5值
|
||
/// </summary>
|
||
public static string Encrypt(byte[] Bytes)
|
||
{
|
||
uint[] X = To16Array(Bytes);
|
||
return calculate(X);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 计算文件的MD5值
|
||
/// </summary>
|
||
public static string Encrypt(FileInfo file)
|
||
{
|
||
uint[] X = To16Array(file);
|
||
return calculate(X);
|
||
}
|
||
|
||
#endregion
|
||
|
||
|
||
#region MD5计算逻辑
|
||
|
||
/// <summary>
|
||
/// 转化byte数组为uint数组，数组长度为16的倍数
|
||
///
|
||
/// 1、字符串转化为字节数组，每4个字节转化为一个uint，依次存储到uint数组
|
||
/// 2、附加0x80作为最后一个字节
|
||
/// 3、在uint数组最后位置记录文件字节长度信息
|
||
/// </summary>
|
||
public static uint[] To16Array(byte[] Bytes)
|
||
{
|
||
uint DataLen = (uint)Bytes.Length;
|
||
|
||
// 计算FileLen对应的uint长度（要求为16的倍数、预留2个uint、最小为16）
|
||
uint ArrayLen = (((DataLen + 8) / 64) + 1) * 16;
|
||
uint[] Array = new uint[ArrayLen];
|
||
|
||
uint ArrayPos = 0;
|
||
int pos = 0;
|
||
uint ByteCount = 0;
|
||
for (ByteCount = 0; ByteCount < DataLen; ByteCount++)
|
||
{
|
||
// 每4个Byte转化为1个uint
|
||
ArrayPos = ByteCount / 4;
|
||
pos = (int)(ByteCount % 4) * 8;
|
||
Array[ArrayPos] = Array[ArrayPos] | ((uint)Bytes[ByteCount] << pos);
|
||
}
|
||
|
||
// 附加0x80作为最后一个字节，添加到uint数组对应位置
|
||
ArrayPos = ByteCount / 4;
|
||
pos = (int)(ByteCount % 4) * 8;
|
||
Array[ArrayPos] = Array[ArrayPos] | ((uint)0x80 << pos);
|
||
|
||
// 记录总长度信息
|
||
Array[ArrayLen - 2] = (DataLen << 3);
|
||
Array[ArrayLen - 1] = (DataLen >> 29);
|
||
|
||
return Array;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 转化字符串为uint数组，数组长度为16的倍数
|
||
///
|
||
/// 1、字符串转化为字节数组，每4个字节转化为一个uint，依次存储到uint数组
|
||
/// 2、附加0x80作为最后一个字节
|
||
/// 3、在uint数组最后位置记录文件字节长度信息
|
||
/// </summary>
|
||
public static uint[] To16Array(string data)
|
||
{
|
||
byte[] datas = System.Text.Encoding.Default.GetBytes(data);
|
||
return To16Array(datas);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 转化文件为uint数组，数组长度为16的倍数
|
||
///
|
||
/// 1、读取文件字节信息，每4个字节转化为一个uint，依次存储到uint数组
|
||
/// 2、附加0x80作为最后一个字节
|
||
/// 3、在uint数组最后位置记录文件字节长度信息
|
||
/// </summary>
|
||
public static uint[] To16Array(FileInfo info)
|
||
{
|
||
FileStream fs = new FileStream(info.FullName, FileMode.Open);// 读取方式打开，得到流
|
||
int SIZE = 1024 * 1024 * 10; // 10M缓存
|
||
byte[] datas = new byte[SIZE]; // 要读取的内容会放到这个数组里
|
||
int countI = 0;
|
||
long offset = 0;
|
||
|
||
// 计算FileLen对应的uint长度（要求为16的倍数、预留2个uint、最小为16）
|
||
uint FileLen = (uint)info.Length;
|
||
uint ArrayLen = (((FileLen + 8) / 64) + 1) * 16;
|
||
uint[] Array = new uint[ArrayLen];
|
||
|
||
int pos = 0;
|
||
uint ByteCount = 0;
|
||
uint ArrayPos = 0;
|
||
while (ByteCount < FileLen)
|
||
{
|
||
if (countI == 0)
|
||
{
|
||
fs.Seek(offset, SeekOrigin.Begin);// 定位到指定字节
|
||
fs.Read(datas, 0, datas.Length);
|
||
|
||
offset += SIZE;
|
||
}
|
||
|
||
// 每4个Byte转化为1个uint
|
||
ArrayPos = ByteCount / 4;
|
||
pos = (int)(ByteCount % 4) * 8;
|
||
Array[ArrayPos] = Array[ArrayPos] | ((uint)datas[countI] << pos);
|
||
|
||
ByteCount = ByteCount + 1;
|
||
|
||
countI++;
|
||
if (countI == SIZE) countI = 0;
|
||
}
|
||
|
||
// 附加0x80作为最后一个字节，添加到uint数组对应位置
|
||
ArrayPos = ByteCount / 4;
|
||
pos = (int)(ByteCount % 4) * 8;
|
||
Array[ArrayPos] = Array[ArrayPos] | ((uint)0x80 << pos);
|
||
|
||
// 记录总长度信息
|
||
Array[ArrayLen - 2] = (FileLen << 3);
|
||
Array[ArrayLen - 1] = (FileLen >> 29);
|
||
|
||
fs.Close();
|
||
return Array;
|
||
}
|
||
|
||
|
||
|
||
private static uint F(uint x, uint y, uint z)
|
||
{
|
||
return (x & y) | ((~x) & z);
|
||
}
|
||
private static uint G(uint x, uint y, uint z)
|
||
{
|
||
return (x & z) | (y & (~z));
|
||
}
|
||
|
||
// 0^0^0 = 0
|
||
// 0^0^1 = 1
|
||
// 0^1^0 = 1
|
||
// 0^1^1 = 0
|
||
// 1^0^0 = 1
|
||
// 1^0^1 = 0
|
||
// 1^1^0 = 0
|
||
// 1^1^1 = 1
|
||
private static uint H(uint x, uint y, uint z)
|
||
{
|
||
return (x ^ y ^ z);
|
||
}
|
||
private static uint I(uint x, uint y, uint z)
|
||
{
|
||
return (y ^ (x | (~z)));
|
||
}
|
||
|
||
// 循环左移
|
||
private static uint RL(uint x, int y)
|
||
{
|
||
y = y % 32;
|
||
return (x << y) | (x >> (32 - y));
|
||
}
|
||
|
||
private static void md5_FF(ref uint a, uint b, uint c, uint d, uint x, int s, uint ac)
|
||
{
|
||
uint f = F(b, c, d);
|
||
a = x + ac + a + f;
|
||
|
||
a = RL(a, s);
|
||
a = a + b;
|
||
}
|
||
private static void md5_GG(ref uint a, uint b, uint c, uint d, uint x, int s, uint ac)
|
||
{
|
||
uint g = G(b, c, d);
|
||
a = x + ac + a + g;
|
||
|
||
a = RL(a, s);
|
||
a = a + b;
|
||
}
|
||
private static void md5_HH(ref uint a, uint b, uint c, uint d, uint x, int s, uint ac)
|
||
{
|
||
uint h = H(b, c, d);
|
||
a = x + ac + a + h;
|
||
|
||
a = RL(a, s);
|
||
a = a + b;
|
||
}
|
||
private static void md5_II(ref uint a, uint b, uint c, uint d, uint x, int s, uint ac)
|
||
{
|
||
uint i = I(b, c, d);
|
||
a = x + ac + a + i;
|
||
|
||
a = RL(a, s);
|
||
a = a + b;
|
||
}
|
||
|
||
private static string RHex(uint n)
|
||
{
|
||
string S = Convert.ToString(n, 16);
|
||
return ReOrder(S);
|
||
}
|
||
|
||
// 16进制串重排序 67452301 -> 01234567
|
||
private static string ReOrder(String S)
|
||
{
|
||
string T = "";
|
||
for (int i = S.Length - 2; i >= -1; i = i - 2)
|
||
{
|
||
if (i == -1) T = T + "0" + S[i + 1];
|
||
else T = T + "" + S[i] + S[i + 1];
|
||
}
|
||
return T;
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 对长度为16倍数的uint数组，执行md5数据摘要，输出md5信息
|
||
/// </summary>
|
||
public static string calculate(uint[] x)
|
||
{
|
||
//uint time1 = DateTime.Now.Ticks;
|
||
|
||
// 7 12 17 22
|
||
// 5 9 14 20
|
||
// 4 11 16 23
|
||
// 6 10 15 21
|
||
const int S11 = 7;
|
||
const int S12 = 12;
|
||
const int S13 = 17;
|
||
const int S14 = 22;
|
||
const int S21 = 5;
|
||
const int S22 = 9;
|
||
const int S23 = 14;
|
||
const int S24 = 20;
|
||
const int S31 = 4;
|
||
const int S32 = 11;
|
||
const int S33 = 16;
|
||
const int S34 = 23;
|
||
const int S41 = 6;
|
||
const int S42 = 10;
|
||
const int S43 = 15;
|
||
const int S44 = 21;
|
||
|
||
uint a = 0x67452301;
|
||
uint b = 0xEFCDAB89;
|
||
uint c = 0x98BADCFE;
|
||
uint d = 0x10325476;
|
||
|
||
for (int k = 0; k < x.Length; k += 16)
|
||
{
|
||
uint AA = a;
|
||
uint BB = b;
|
||
uint CC = c;
|
||
uint DD = d;
|
||
|
||
md5_FF(ref a, b, c, d, x[k + 0], S11, 0xD76AA478); // 3604027302
|
||
md5_FF(ref d, a, b, c, x[k + 1], S12, 0xE8C7B756); // 877880356
|
||
md5_FF(ref c, d, a, b, x[k + 2], S13, 0x242070DB); // 2562383102
|
||
md5_FF(ref b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
|
||
md5_FF(ref a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
|
||
md5_FF(ref d, a, b, c, x[k + 5], S12, 0x4787C62A);
|
||
md5_FF(ref c, d, a, b, x[k + 6], S13, 0xA8304613);
|
||
md5_FF(ref b, c, d, a, x[k + 7], S14, 0xFD469501);
|
||
md5_FF(ref a, b, c, d, x[k + 8], S11, 0x698098D8);
|
||
md5_FF(ref d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
|
||
md5_FF(ref c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
|
||
md5_FF(ref b, c, d, a, x[k + 11], S14, 0x895CD7BE);
|
||
md5_FF(ref a, b, c, d, x[k + 12], S11, 0x6B901122);
|
||
md5_FF(ref d, a, b, c, x[k + 13], S12, 0xFD987193);
|
||
md5_FF(ref c, d, a, b, x[k + 14], S13, 0xA679438E);
|
||
md5_FF(ref b, c, d, a, x[k + 15], S14, 0x49B40821); //3526238649
|
||
md5_GG(ref a, b, c, d, x[k + 1], S21, 0xF61E2562);
|
||
md5_GG(ref d, a, b, c, x[k + 6], S22, 0xC040B340); //1572812400
|
||
md5_GG(ref c, d, a, b, x[k + 11], S23, 0x265E5A51);
|
||
md5_GG(ref b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
|
||
md5_GG(ref a, b, c, d, x[k + 5], S21, 0xD62F105D);
|
||
md5_GG(ref d, a, b, c, x[k + 10], S22, 0x2441453);
|
||
md5_GG(ref c, d, a, b, x[k + 15], S23, 0xD8A1E681);
|
||
md5_GG(ref b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
|
||
md5_GG(ref a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
|
||
md5_GG(ref d, a, b, c, x[k + 14], S22, 0xC33707D6);
|
||
md5_GG(ref c, d, a, b, x[k + 3], S23, 0xF4D50D87);
|
||
md5_GG(ref b, c, d, a, x[k + 8], S24, 0x455A14ED);
|
||
md5_GG(ref a, b, c, d, x[k + 13], S21, 0xA9E3E905);
|
||
md5_GG(ref d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
|
||
md5_GG(ref c, d, a, b, x[k + 7], S23, 0x676F02D9);
|
||
md5_GG(ref b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
|
||
md5_HH(ref a, b, c, d, x[k + 5], S31, 0xFFFA3942); // 3750198684 2314002400 1089690627 990001115 0 4 -> 2749600077
|
||
md5_HH(ref d, a, b, c, x[k + 8], S32, 0x8771F681); // 990001115
|
||
md5_HH(ref c, d, a, b, x[k + 11], S33, 0x6D9D6122); // 1089690627
|
||
md5_HH(ref b, c, d, a, x[k + 14], S34, 0xFDE5380C); // 2314002400
|
||
md5_HH(ref a, b, c, d, x[k + 1], S31, 0xA4BEEA44); // 555633090
|
||
md5_HH(ref d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
|
||
md5_HH(ref c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
|
||
md5_HH(ref b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
|
||
md5_HH(ref a, b, c, d, x[k + 13], S31, 0x289B7EC6);
|
||
md5_HH(ref d, a, b, c, x[k + 0], S32, 0xEAA127FA);
|
||
md5_HH(ref c, d, a, b, x[k + 3], S33, 0xD4EF3085);
|
||
md5_HH(ref b, c, d, a, x[k + 6], S34, 0x4881D05);
|
||
md5_HH(ref a, b, c, d, x[k + 9], S31, 0xD9D4D039);
|
||
md5_HH(ref d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
|
||
md5_HH(ref c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
|
||
md5_HH(ref b, c, d, a, x[k + 2], S34, 0xC4AC5665); // 1444303940
|
||
md5_II(ref a, b, c, d, x[k + 0], S41, 0xF4292244); // 808311156
|
||
md5_II(ref d, a, b, c, x[k + 7], S42, 0x432AFF97);
|
||
md5_II(ref c, d, a, b, x[k + 14], S43, 0xAB9423A7);
|
||
md5_II(ref b, c, d, a, x[k + 5], S44, 0xFC93A039);
|
||
md5_II(ref a, b, c, d, x[k + 12], S41, 0x655B59C3);
|
||
md5_II(ref d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
|
||
md5_II(ref c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
|
||
md5_II(ref b, c, d, a, x[k + 1], S44, 0x85845DD1);
|
||
md5_II(ref a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
|
||
md5_II(ref d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
|
||
md5_II(ref c, d, a, b, x[k + 6], S43, 0xA3014314);
|
||
md5_II(ref b, c, d, a, x[k + 13], S44, 0x4E0811A1);
|
||
md5_II(ref a, b, c, d, x[k + 4], S41, 0xF7537E82);
|
||
md5_II(ref d, a, b, c, x[k + 11], S42, 0xBD3AF235);
|
||
md5_II(ref c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
|
||
md5_II(ref b, c, d, a, x[k + 9], S44, 0xEB86D391); // 4120542881
|
||
|
||
a = a + AA; //3844921825
|
||
b = b + BB;
|
||
c = c + CC;
|
||
d = d + DD;
|
||
}
|
||
|
||
string MD5 = RHex(a) + RHex(b) + RHex(c) + RHex(d);
|
||
|
||
//uint time2 = DateTime.Now.Ticks;
|
||
//MessageBox.Show("MD5计算耗时：" + ((time2 - time1) / 10000000f) + "秒");
|
||
|
||
return MD5;
|
||
}
|
||
|
||
#endregion
|
||
}
|
||
}
|