C# 獲取MD5 (MD5計算,MD5小工具)
阿新 • • 發佈:2019-01-09
方式一:
雙擊執行,輸入字串計算MD5值;或拖動任意檔案或資料夾到到工具上,自動計算MD5值。
方式二:
拖拽檔案或資料夾至getMD5.exe上,可自動計算檔案或資料夾下所有檔案的MD5值,儲存至檔案MD5.txt中
方式三:
通過cmd命令呼叫(類似方式二)
REM 獲取1.txt和files目錄下所有檔案的MD5值
getMD5.exe "D:\tmp\1.txt;C:\Users\Administrator\Desktop\files"
工具原始碼:
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; namespace getMD5 { //示例: // MD5.Encrypt("a"); // 計算字串MD5值 // MD5.Encrypt(new FileInfo("D:\\1.rar")); // 計算檔案MD5值 // MD5.Encrypt(byte[] Bytes); // 計算Byte陣列MD5值 //MD5 ("") = d41d8cd98f00b204e9800998ecf8427e //MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661 //MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72 //MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0 //MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b class MD5 { #region MD5呼叫介面 /// <summary> /// 計算data的MD5值 /// </summary> public static string Encrypt(string data) { uint[] X = To16Array(data); return calculate(X); } /// <summary> /// 計算byte陣列的MD5值 /// </summary> public static string Encrypt(byte[] Bytes) { uint[] X = To16Array(Bytes); return calculate(X); } /// <summary> /// 計算檔案的MD5值 /// </summary> public static string Encrypt(FileInfo file) { uint[] X = To16Array(file); return calculate(X); } #endregion #region MD5計算邏輯 /// <summary> /// 轉化byte陣列為uint陣列,陣列長度為16的倍數 /// /// 1、字串轉化為位元組陣列,每4個位元組轉化為一個uint,依次儲存到uint陣列 /// 2、附加0x80作為最後一個位元組 /// 3、在uint陣列最後位置記錄檔案位元組長度資訊 /// </summary> public static uint[] To16Array(byte[] Bytes) { uint DataLen = (uint)Bytes.Length; // 計算FileLen對應的uint長度(要求為16的倍數、預留2個uint、最小為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個Byte轉化為1個uint ArrayPos = ByteCount / 4; pos = (int)(ByteCount % 4) * 8; Array[ArrayPos] = Array[ArrayPos] | ((uint)Bytes[ByteCount] << pos); } // 附加0x80作為最後一個位元組,新增到uint陣列對應位置 ArrayPos = ByteCount / 4; pos = (int)(ByteCount % 4) * 8; Array[ArrayPos] = Array[ArrayPos] | ((uint)0x80 << pos); // 記錄總長度資訊 Array[ArrayLen - 2] = (DataLen << 3); Array[ArrayLen - 1] = (DataLen >> 29); return Array; } /// <summary> /// 轉化字串為uint陣列,陣列長度為16的倍數 /// /// 1、字串轉化為位元組陣列,每4個位元組轉化為一個uint,依次儲存到uint陣列 /// 2、附加0x80作為最後一個位元組 /// 3、在uint陣列最後位置記錄檔案位元組長度資訊 /// </summary> public static uint[] To16Array(string data) { byte[] datas = System.Text.Encoding.Default.GetBytes(data); return To16Array(datas); } /// <summary> /// 轉化檔案為uint陣列,陣列長度為16的倍數 /// /// 1、讀取檔案位元組資訊,每4個位元組轉化為一個uint,依次儲存到uint陣列 /// 2、附加0x80作為最後一個位元組 /// 3、在uint陣列最後位置記錄檔案位元組長度資訊 /// </summary> public static uint[] To16Array(FileInfo info) { FileStream fs = new FileStream(info.FullName, FileMode.Open);// 讀取方式開啟,得到流 int SIZE = 1024 * 1024 * 10; // 10M快取 byte[] datas = new byte[SIZE]; // 要讀取的內容會放到這個數組裡 int countI = 0; long offset = 0; // 計算FileLen對應的uint長度(要求為16的倍數、預留2個uint、最小為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);// 定位到指定位元組 fs.Read(datas, 0, datas.Length); offset += SIZE; } // 每4個Byte轉化為1個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作為最後一個位元組,新增到uint陣列對應位置 ArrayPos = ByteCount / 4; pos = (int)(ByteCount % 4) * 8; Array[ArrayPos] = Array[ArrayPos] | ((uint)0x80 << pos); // 記錄總長度資訊 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))); } // 迴圈左移 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進位制串重排序 67452301 -> 01234567 private static string ReOrder(String S) { string T = ""; for (int i = S.Length - 2; i >= 0; i = i - 2) { if (i == -1) T = T + "0" + S[i + 1]; else T = T + "" + S[i] + S[i + 1]; } return T; } /// <summary> /// 對長度為16倍數的uint陣列,執行md5資料摘要,輸出md5資訊 /// </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計算耗時:" + ((time2 - time1) / 10000000f) + "秒"); return MD5; } #endregion } }
using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using System.Windows.Forms; namespace getMD5 { static class Program { /// <summary> /// 應用程式的主入口點。 /// </summary> [STAThread] static void Main(string[] args) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); if (args.Length == 0) Application.Run(new Form_MD5()); else if (args.Length == 1) { string[] files = args[0].Split(';'); string filesNames = Form_MD5.toSubDirFileNames(files); files = filesNames.Split(';'); string tmp = Form_MD5.getFilesMD5(files); // 計算檔案MD5值 Form_MD5.SaveProcess(tmp); } } } }
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace getMD5 { public partial class Form_MD5 : Form { public Form_MD5() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { textBox1.Text = MD5.Encrypt(textBox1.Text, 32); } private void Form_DragEnter(object sender, DragEventArgs e) { dragEnter(e); } private void Form_DragDrop(object sender, DragEventArgs e) { TextBox textBox = sender as TextBox; textBox.Text = dragDrop(e); // 獲取拖入的檔案 string[] files = textBox.Text.Split(';'); string tmp = getFilesMD5(files); // 計算檔案MD5值 textBox1.Text = tmp; SaveProcess(tmp, "MD5.txt"); } // 計算各檔案對應的MD5值 public static String getFilesMD5(string[] files) { string tmp = ""; foreach (string file in files) { if (System.IO.File.Exists(file)) { string data = fileToString(file); string md5 = MD5.Encrypt(data, 32); tmp += "\r\n" + file + "(" + md5 + ")"; } } return tmp; } #region 檔案讀取與儲存 /// <summary> /// 獲取檔案中的資料串 /// </summary> public static string fileToString(String filePath) { string str = ""; //獲取檔案內容 if (System.IO.File.Exists(filePath)) { System.IO.StreamReader file1 = new System.IO.StreamReader(filePath, Encoding.Default);//讀取檔案中的資料 str = file1.ReadToEnd(); //讀取檔案中的全部資料 file1.Close(); file1.Dispose(); } return str; } /// <summary> /// 儲存資料data到檔案處理過程,返回值為儲存的檔名 /// </summary> public static String SaveProcess(String data, String name = "", String CurDir = "") { if (CurDir.Equals("")) CurDir = System.AppDomain.CurrentDomain.BaseDirectory; //設定當前目錄 if (name.Equals("")) name = "MD5.txt"; if (!System.IO.Directory.Exists(CurDir)) System.IO.Directory.CreateDirectory(CurDir); //該路徑不存在時,在當前檔案目錄下建立資料夾"匯出.." //不存在該檔案時先建立 String filePath = CurDir + name; System.IO.StreamWriter file1 = new System.IO.StreamWriter(filePath, false); //檔案已覆蓋方式新增內容 file1.Write(data); //儲存資料到檔案 file1.Close(); //關閉檔案 file1.Dispose(); //釋放物件 return filePath; } #endregion # region 檔案拖拽 /// <summary> /// 檔案拖進事件處理: /// </summary> public void dragEnter(DragEventArgs e) { if (e.Data.GetDataPresent(DataFormats.FileDrop)) //判斷拖來的是否是檔案 e.Effect = DragDropEffects.Link; //是則將拖動源中的資料連線到控制元件 else e.Effect = DragDropEffects.None; } /// <summary> /// 檔案放下事件處理: /// 放下, 另外需設定對應控制元件的 AllowDrop = true; /// 獲取的檔名形如 "d:\1.txt;d:\2.txt" /// </summary> public string dragDrop(DragEventArgs e) { Array file = (System.Array)e.Data.GetData(DataFormats.FileDrop);//將拖來的資料轉化為陣列儲存 return toSubDirFileNames(file); } // 獲取所有files目錄下的所有檔案,轉化為單個串 public static string toSubDirFileNames(Array files) { StringBuilder filesName = new StringBuilder(""); foreach (object I in files) { string str = I.ToString(); System.IO.FileInfo info = new System.IO.FileInfo(str); //若為目錄,則獲取目錄下所有子檔名 if ((info.Attributes & System.IO.FileAttributes.Directory) != 0) { str = getAllFiles(str); if (!str.Equals("")) filesName.Append((filesName.Length == 0 ? "" : ";") + str); } //若為檔案,則獲取檔名 else if (System.IO.File.Exists(str)) filesName.Append((filesName.Length == 0 ? "" : ";") + str); } return filesName.ToString(); } /// <summary> /// 判斷path是否為目錄 /// </summary> public bool IsDirectory(String path) { System.IO.FileInfo info = new System.IO.FileInfo(path); return (info.Attributes & System.IO.FileAttributes.Directory) != 0; } /// <summary> /// 獲取目錄path下所有子檔名 /// </summary> public static string getAllFiles(String path) { StringBuilder str = new StringBuilder(""); if (System.IO.Directory.Exists(path)) { //所有子檔名 string[] files = System.IO.Directory.GetFiles(path); foreach (string file in files) str.Append((str.Length == 0 ? "" : ";") + file); //所有子目錄名 string[] Dirs = System.IO.Directory.GetDirectories(path); foreach (string dir in Dirs) { string tmp = getAllFiles(dir); //子目錄下所有子檔名 if (!tmp.Equals("")) str.Append((str.Length == 0 ? "" : ";") + tmp); } } return str.ToString(); } # endregion } }
namespace getMD5
{
partial class Form_MD5
{
/// <summary>
/// 必需的設計器變數。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
/// <param name="disposing">如果應釋放託管資源,為 true;否則為 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗體設計器生成的程式碼
/// <summary>
/// 設計器支援所需的方法 - 不要
/// 使用程式碼編輯器修改此方法的內容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
this.SuspendLayout();
//
// button1
//
this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button1.Location = new System.Drawing.Point(182, 308);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 0;
this.button1.Text = "計算MD5";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.AllowDrop = true;
this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBox1.Location = new System.Drawing.Point(0, 0);
this.textBox1.Margin = new System.Windows.Forms.Padding(0);
this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Both;
this.textBox1.Size = new System.Drawing.Size(257, 305);
this.textBox1.TabIndex = 1;
this.toolTip1.SetToolTip(this.textBox1, "可拖動檔案至此,檢視檔案的MD5值");
this.textBox1.DragDrop += new System.Windows.Forms.DragEventHandler(this.Form_DragDrop);
this.textBox1.DragEnter += new System.Windows.Forms.DragEventHandler(this.Form_DragEnter);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(257, 335);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "MD5";
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.ToolTip toolTip1;
}
}