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@@ -1,1536 +0,0 @@
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-using System;
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-using System.Collections;
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-using System.IO;
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-using System.Security.Cryptography;
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-using System.Text;
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-
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-namespace Masuit.Tools.Security
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-{
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- /// <summary>
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- /// 常用的加密解密算法
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- /// </summary>
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- public static class Encrypt
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- {
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- #region DES对称加密解密
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-
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- /// <summary>
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- /// 加密密钥,需要在config配置文件中AppSettings节点中配置desSecret值,若未配置,默认取“masuit”的MD5值
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- /// </summary>
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- public static string DefaultEncryptKey = "masuit".MDString2();
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-
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- /// <summary>
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- /// 使用默认加密
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- /// </summary>
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- /// <param name="strText">被加密的字符串</param>
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- /// <returns>加密后的数据</returns>
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- public static string DesEncrypt(this string strText)
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- {
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- try
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- {
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- return DesEncrypt(strText, DefaultEncryptKey);
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- }
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- catch
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- {
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- return "";
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- }
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- }
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-
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- /// <summary>
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- /// 使用默认解密
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- /// </summary>
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- /// <param name="strText">需要解密的 字符串</param>
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- /// <returns>解密后的数据</returns>
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- public static string DesDecrypt(this string strText)
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- {
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- try
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- {
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- return DesDecrypt(strText, DefaultEncryptKey);
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- }
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- catch
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- {
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- return "";
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- }
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- }
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-
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- /// <summary>
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- /// 解密字符串
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- /// 加密密钥必须为8位
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- /// </summary>
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- /// <param name="strText">被解密的字符串</param>
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- /// <param name="strEncrKey">密钥</param>
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- /// <returns>解密后的数据</returns>
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- public static string DesEncrypt(this string strText, string strEncrKey)
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- {
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- if (strEncrKey.Length < 8)
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- {
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- throw new Exception("密钥长度无效,密钥必须是8位!");
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- }
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-
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- StringBuilder ret = new StringBuilder();
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- DESCryptoServiceProvider des = new DESCryptoServiceProvider();
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- byte[] inputByteArray = Encoding.Default.GetBytes(strText);
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- des.Key = Encoding.ASCII.GetBytes(strEncrKey.Substring(0, 8));
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- des.IV = Encoding.ASCII.GetBytes(strEncrKey.Substring(0, 8));
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- MemoryStream ms = new MemoryStream();
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- CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
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- cs.Write(inputByteArray, 0, inputByteArray.Length);
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- cs.FlushFinalBlock();
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- foreach (byte b in ms.ToArray())
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- {
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- ret.AppendFormat($"{b:X2}");
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- }
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-
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- return ret.ToString();
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- }
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-
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- /// <summary>
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- /// DES加密文件
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- /// </summary>
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- /// <param name="fin">文件输入流</param>
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- /// <param name="outFilePath">文件输出路径</param>
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- /// <param name="strEncrKey">加密密钥</param>
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- public static void DesEncrypt(this FileStream fin, string outFilePath, string strEncrKey)
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- {
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- byte[] iv =
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- {
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- 0x12,
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- 0x34,
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- 0x56,
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- 0x78,
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- 0x90,
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- 0xAB,
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- 0xCD,
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- 0xEF
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- };
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- var byKey = Encoding.UTF8.GetBytes(strEncrKey.Substring(0, 8));
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- using var fout = new FileStream(outFilePath, FileMode.OpenOrCreate, FileAccess.Write);
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- fout.SetLength(0);
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- byte[] bin = new byte[100];
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- long rdlen = 0;
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- long totlen = fin.Length;
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- DES des = new DESCryptoServiceProvider();
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- var encStream = new CryptoStream(fout, des.CreateEncryptor(byKey, iv), CryptoStreamMode.Write);
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- while (rdlen < totlen)
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- {
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- var len = fin.Read(bin, 0, 100);
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- encStream.Write(bin, 0, len);
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- rdlen += len;
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- }
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- }
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-
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- /// <summary>
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- /// DES解密文件
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- /// </summary>
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- /// <param name="fin">输入文件流</param>
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- /// <param name="outFilePath">文件输出路径</param>
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- /// <param name="sDecrKey">解密密钥</param>
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- public static void DesDecrypt(this FileStream fin, string outFilePath, string sDecrKey)
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- {
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- byte[] iv =
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- {
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- 0x12,
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- 0x34,
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- 0x56,
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- 0x78,
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- 0x90,
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- 0xAB,
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- 0xCD,
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- 0xEF
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- };
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- var byKey = Encoding.UTF8.GetBytes(sDecrKey.Substring(0, 8));
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- using var fout = new FileStream(outFilePath, FileMode.OpenOrCreate, FileAccess.Write);
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- fout.SetLength(0);
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- byte[] bin = new byte[100];
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- long rdlen = 0;
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- long totlen = fin.Length;
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- DES des = new DESCryptoServiceProvider();
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- var encStream = new CryptoStream(fout, des.CreateDecryptor(byKey, iv), CryptoStreamMode.Write);
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- while (rdlen < totlen)
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- {
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- var len = fin.Read(bin, 0, 100);
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- encStream.Write(bin, 0, len);
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- rdlen += len;
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- }
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- }
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-
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- /// <summary>
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- /// DES解密算法
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- /// 密钥为8位
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- /// </summary>
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- /// <param name="pToDecrypt">需要解密的字符串</param>
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- /// <param name="sKey">密钥</param>
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- /// <returns>解密后的数据</returns>
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- public static string DesDecrypt(this string pToDecrypt, string sKey)
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- {
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- if (sKey.Length < 8)
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- {
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- throw new Exception("密钥长度无效,密钥必须是8位!");
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- }
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-
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- var ms = new MemoryStream();
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-
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- var des = new DESCryptoServiceProvider();
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- var inputByteArray = new byte[pToDecrypt.Length / 2];
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- for (int x = 0; x < pToDecrypt.Length / 2; x++)
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- {
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- int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));
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- inputByteArray[x] = (byte)i;
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- }
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-
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- des.Key = Encoding.ASCII.GetBytes(sKey.Substring(0, 8));
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- des.IV = Encoding.ASCII.GetBytes(sKey.Substring(0, 8));
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- var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
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- cs.Write(inputByteArray, 0, inputByteArray.Length);
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- cs.FlushFinalBlock();
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- return Encoding.Default.GetString(ms.ToArray());
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- }
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-
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- #endregion
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-
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- #region 对称加密算法AES RijndaelManaged加密解密
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-
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- private static readonly string Default_AES_Key = "@#kim123";
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-
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- private static byte[] Keys =
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- {
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- 0x41,
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- 0x72,
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- 0x65,
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- 0x79,
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- 0x6F,
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- 0x75,
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- 0x6D,
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- 0x79,
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- 0x53,
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- 0x6E,
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- 0x6F,
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- 0x77,
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- 0x6D,
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- 0x61,
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- 0x6E,
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- 0x3F
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- };
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-
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- /// <summary>
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- /// 对称加密算法AES RijndaelManaged加密(RijndaelManaged(AES)算法是块式加密算法)
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- /// </summary>
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- /// <param name="encryptString">待加密字符串</param>
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- /// <returns>加密结果字符串</returns>
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- public static string AESEncrypt(this string encryptString)
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- {
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- return AESEncrypt(encryptString, Default_AES_Key);
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- }
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-
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- /// <summary>
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- /// 对称加密算法AES RijndaelManaged加密(RijndaelManaged(AES)算法是块式加密算法)
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- /// </summary>
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- /// <param name="encryptString">待加密字符串</param>
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- /// <param name="encryptKey">加密密钥,须半角字符</param>
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- /// <returns>加密结果字符串</returns>
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- public static string AESEncrypt(this string encryptString, string encryptKey)
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- {
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- encryptKey = GetSubString(encryptKey, 32, "");
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- encryptKey = encryptKey.PadRight(32, ' ');
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- var rijndaelProvider = new RijndaelManaged
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- {
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- Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32)),
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- IV = Keys
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- };
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- ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();
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- byte[] inputData = Encoding.UTF8.GetBytes(encryptString);
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- byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);
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- return Convert.ToBase64String(encryptedData);
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- }
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-
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- /// <summary>
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- /// 对称加密算法AES RijndaelManaged解密字符串
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- /// </summary>
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- /// <param name="decryptString">待解密的字符串</param>
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- /// <returns>解密成功返回解密后的字符串,失败返源串</returns>
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- public static string AESDecrypt(this string decryptString)
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- {
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- return AESDecrypt(decryptString, Default_AES_Key);
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- }
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-
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- /// <summary>
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- /// 对称加密算法AES RijndaelManaged解密字符串
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- /// </summary>
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- /// <param name="decryptString">待解密的字符串</param>
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- /// <param name="decryptKey">解密密钥,和加密密钥相同</param>
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- /// <returns>解密成功返回解密后的字符串,失败返回空</returns>
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- public static string AESDecrypt(this string decryptString, string decryptKey)
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- {
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- try
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- {
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- decryptKey = GetSubString(decryptKey, 32, "");
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- decryptKey = decryptKey.PadRight(32, ' ');
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- var rijndaelProvider = new RijndaelManaged()
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- {
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- Key = Encoding.UTF8.GetBytes(decryptKey),
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- IV = Keys
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- };
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- ICryptoTransform rijndaelDecrypt = rijndaelProvider.CreateDecryptor();
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- byte[] inputData = Convert.FromBase64String(decryptString);
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- byte[] decryptedData = rijndaelDecrypt.TransformFinalBlock(inputData, 0, inputData.Length);
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- return Encoding.UTF8.GetString(decryptedData);
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- }
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- catch
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- {
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- return string.Empty;
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- }
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- }
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-
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- /// <summary>
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- /// 按字节长度(按字节,一个汉字为2个字节)取得某字符串的一部分
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- /// </summary>
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- /// <param name="sourceString">源字符串</param>
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- /// <param name="length">所取字符串字节长度</param>
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- /// <param name="tailString">附加字符串(当字符串不够长时,尾部所添加的字符串,一般为"...")</param>
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- /// <returns>某字符串的一部分</returns>
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- private static string GetSubString(this string sourceString, int length, string tailString)
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- {
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- return GetSubString(sourceString, 0, length, tailString);
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- }
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-
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- /// <summary>
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- /// 按字节长度(按字节,一个汉字为2个字节)取得某字符串的一部分
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- /// </summary>
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- /// <param name="sourceString">源字符串</param>
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- /// <param name="startIndex">索引位置,以0开始</param>
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- /// <param name="length">所取字符串字节长度</param>
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- /// <param name="tailString">附加字符串(当字符串不够长时,尾部所添加的字符串,一般为"...")</param>
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- /// <returns>某字符串的一部分</returns>
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- private static string GetSubString(this string sourceString, int startIndex, int length, string tailString)
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- {
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- //当是日文或韩文时(注:中文的范围:\u4e00 - \u9fa5, 日文在\u0800 - \u4e00, 韩文为\xAC00-\xD7A3)
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- if (System.Text.RegularExpressions.Regex.IsMatch(sourceString, "[\u0800-\u4e00]+") || System.Text.RegularExpressions.Regex.IsMatch(sourceString, "[\xAC00-\xD7A3]+"))
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- {
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- //当截取的起始位置超出字段串长度时
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- if (startIndex >= sourceString.Length)
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- {
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- return string.Empty;
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- }
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-
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- return sourceString.Substring(startIndex, length + startIndex > sourceString.Length ? (sourceString.Length - startIndex) : length);
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- }
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-
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- //中文字符,如"中国人民abcd123"
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- if (length <= 0)
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- {
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- return string.Empty;
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- }
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-
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- byte[] bytesSource = Encoding.Default.GetBytes(sourceString);
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-
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- //当字符串长度大于起始位置
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- if (bytesSource.Length > startIndex)
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- {
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- int endIndex = bytesSource.Length;
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-
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- //当要截取的长度在字符串的有效长度范围内
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- if (bytesSource.Length > (startIndex + length))
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- {
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- endIndex = length + startIndex;
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- }
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- else
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- {
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- //当不在有效范围内时,只取到字符串的结尾
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- length = bytesSource.Length - startIndex;
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- tailString = "";
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- }
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-
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- var anResultFlag = new int[length];
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- int nFlag = 0;
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- //字节大于127为双字节字符
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- for (int i = startIndex; i < endIndex; i++)
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- {
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- if (bytesSource[i] > 127)
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- {
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- nFlag++;
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- if (nFlag == 3)
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- {
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- nFlag = 1;
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- }
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- }
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- else
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- {
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- nFlag = 0;
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- }
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-
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- anResultFlag[i] = nFlag;
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- }
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-
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- //最后一个字节为双字节字符的一半
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- if ((bytesSource[endIndex - 1] > 127) && (anResultFlag[length - 1] == 1))
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- {
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- length++;
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- }
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-
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- byte[] bsResult = new byte[length];
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- Array.Copy(bytesSource, startIndex, bsResult, 0, length);
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- var myResult = Encoding.Default.GetString(bsResult);
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- myResult += tailString;
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- return myResult;
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- }
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-
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- return string.Empty;
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- }
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-
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- /// <summary>
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- /// 加密文件流
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- /// </summary>
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- /// <param name="fs">需要加密的文件流</param>
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- /// <param name="decryptKey">加密密钥</param>
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- /// <returns>加密流</returns>
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- public static CryptoStream AESEncryptStrream(this FileStream fs, string decryptKey)
|
|
|
- {
|
|
|
- decryptKey = GetSubString(decryptKey, 32, "");
|
|
|
- decryptKey = decryptKey.PadRight(32, ' ');
|
|
|
- var rijndaelProvider = new RijndaelManaged()
|
|
|
- {
|
|
|
- Key = Encoding.UTF8.GetBytes(decryptKey),
|
|
|
- IV = Keys
|
|
|
- };
|
|
|
- ICryptoTransform encrypto = rijndaelProvider.CreateEncryptor();
|
|
|
- return new CryptoStream(fs, encrypto, CryptoStreamMode.Write);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 解密文件流
|
|
|
- /// </summary>
|
|
|
- /// <param name="fs">需要解密的文件流</param>
|
|
|
- /// <param name="decryptKey">解密密钥</param>
|
|
|
- /// <returns>加密流</returns>
|
|
|
- public static CryptoStream AESDecryptStream(this FileStream fs, string decryptKey)
|
|
|
- {
|
|
|
- decryptKey = GetSubString(decryptKey, 32, "");
|
|
|
- decryptKey = decryptKey.PadRight(32, ' ');
|
|
|
- var rijndaelProvider = new RijndaelManaged()
|
|
|
- {
|
|
|
- Key = Encoding.UTF8.GetBytes(decryptKey),
|
|
|
- IV = Keys
|
|
|
- };
|
|
|
- var decrypto = rijndaelProvider.CreateDecryptor();
|
|
|
- return new CryptoStream(fs, decrypto, CryptoStreamMode.Read);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对指定文件AES加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="input">源文件流</param>
|
|
|
- /// <param name="outputPath">输出文件路径</param>
|
|
|
- public static void AESEncryptFile(this FileStream input, string outputPath)
|
|
|
- {
|
|
|
- using var fren = new FileStream(outputPath, FileMode.Create);
|
|
|
- var enfr = AESEncryptStrream(fren, Default_AES_Key);
|
|
|
- byte[] bytearrayinput = new byte[input.Length];
|
|
|
- input.Read(bytearrayinput, 0, bytearrayinput.Length);
|
|
|
- enfr.Write(bytearrayinput, 0, bytearrayinput.Length);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对指定的文件AES解密
|
|
|
- /// </summary>
|
|
|
- /// <param name="input">源文件流</param>
|
|
|
- /// <param name="outputPath">输出文件路径</param>
|
|
|
- public static void AESDecryptFile(this FileStream input, string outputPath)
|
|
|
- {
|
|
|
- FileStream frde = new FileStream(outputPath, FileMode.Create);
|
|
|
- CryptoStream defr = AESDecryptStream(input, Default_AES_Key);
|
|
|
- byte[] bytearrayoutput = new byte[1024];
|
|
|
- while (true)
|
|
|
- {
|
|
|
- var count = defr.Read(bytearrayoutput, 0, bytearrayoutput.Length);
|
|
|
- frde.Write(bytearrayoutput, 0, count);
|
|
|
- if (count < bytearrayoutput.Length)
|
|
|
- {
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region Base64加密解密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// Base64加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="str">需要加密的字符串</param>
|
|
|
- /// <returns>加密后的数据</returns>
|
|
|
- public static string Base64Encrypt(this string str)
|
|
|
- {
|
|
|
- byte[] encbuff = Encoding.UTF8.GetBytes(str);
|
|
|
- return Convert.ToBase64String(encbuff);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// Base64解密
|
|
|
- /// </summary>
|
|
|
- /// <param name="str">需要解密的字符串</param>
|
|
|
- /// <returns>解密后的数据</returns>
|
|
|
- public static string Base64Decrypt(this string str)
|
|
|
- {
|
|
|
- byte[] decbuff = Convert.FromBase64String(str);
|
|
|
- return Encoding.UTF8.GetString(decbuff);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region MD5加密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="strText">原数据</param>
|
|
|
- /// <returns>MD5字符串</returns>
|
|
|
- public static string MD5Encrypt(this string strText)
|
|
|
- {
|
|
|
- MD5 md5 = new MD5CryptoServiceProvider();
|
|
|
- byte[] result = md5.ComputeHash(Encoding.Default.GetBytes(strText));
|
|
|
- return Encoding.Default.GetString(result);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// SHA256函数
|
|
|
- /// </summary>
|
|
|
- /// <param name="str">原始字符串</param>
|
|
|
- /// <returns>SHA256结果(返回长度为44字节的字符串)</returns>
|
|
|
- public static string SHA256(this string str)
|
|
|
- {
|
|
|
- byte[] sha256Data = Encoding.UTF8.GetBytes(str);
|
|
|
- var sha256 = new SHA256Managed();
|
|
|
- byte[] result = sha256.ComputeHash(sha256Data);
|
|
|
- return Convert.ToBase64String(result); //返回长度为44字节的字符串
|
|
|
- }
|
|
|
-
|
|
|
- #region 创建Key
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 创建Key
|
|
|
- /// </summary>
|
|
|
- /// <returns>密钥</returns>
|
|
|
- public static string GenerateKey()
|
|
|
- {
|
|
|
- var desCrypto = (DESCryptoServiceProvider)DES.Create();
|
|
|
- return Encoding.ASCII.GetString(desCrypto.Key);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region MD5加密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="pToEncrypt">加密字符串</param>
|
|
|
- /// <param name="sKey">密钥Key</param>
|
|
|
- /// <returns>加密后的字符串</returns>
|
|
|
- public static string MD5Encrypt(this string pToEncrypt, string sKey)
|
|
|
- {
|
|
|
- var des = new DESCryptoServiceProvider();
|
|
|
- var inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
|
|
|
- des.Key = Encoding.ASCII.GetBytes(sKey);
|
|
|
- des.IV = Encoding.ASCII.GetBytes(sKey);
|
|
|
- var ms = new MemoryStream();
|
|
|
- var cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
|
|
|
- cs.Write(inputByteArray, 0, inputByteArray.Length);
|
|
|
- cs.FlushFinalBlock();
|
|
|
- var ret = new StringBuilder();
|
|
|
- foreach (var b in ms.ToArray())
|
|
|
- {
|
|
|
- ret.AppendFormat("{0:X2}", b);
|
|
|
- }
|
|
|
-
|
|
|
- ret.ToString();
|
|
|
- return ret.ToString();
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region MD5解密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5解密
|
|
|
- /// </summary>
|
|
|
- /// <param name="pToDecrypt">解密字符串</param>
|
|
|
- /// <param name="sKey">密钥Key</param>
|
|
|
- /// <returns>解密后的数据</returns>
|
|
|
- public static string MD5Decrypt(this string pToDecrypt, string sKey)
|
|
|
- {
|
|
|
- var des = new DESCryptoServiceProvider();
|
|
|
-
|
|
|
- var inputByteArray = new byte[pToDecrypt.Length / 2];
|
|
|
- for (var x = 0; x < pToDecrypt.Length / 2; x++)
|
|
|
- {
|
|
|
- var i = Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16);
|
|
|
- inputByteArray[x] = (byte)i;
|
|
|
- }
|
|
|
-
|
|
|
- des.Key = Encoding.ASCII.GetBytes(sKey);
|
|
|
- des.IV = Encoding.ASCII.GetBytes(sKey);
|
|
|
- var ms = new MemoryStream();
|
|
|
- var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
|
|
|
- cs.Write(inputByteArray, 0, inputByteArray.Length);
|
|
|
- cs.FlushFinalBlock();
|
|
|
- return Encoding.Default.GetString(ms.ToArray());
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region MD5加密算法
|
|
|
-
|
|
|
- //number of bits to rotate in tranforming
|
|
|
- private const int S11 = 7;
|
|
|
-
|
|
|
- private const int S12 = 12;
|
|
|
- private const int S13 = 17;
|
|
|
- private const int S14 = 22;
|
|
|
- private const int S21 = 5;
|
|
|
- private const int S22 = 9;
|
|
|
- private const int S23 = 14;
|
|
|
- private const int S24 = 20;
|
|
|
- private const int S31 = 4;
|
|
|
- private const int S32 = 11;
|
|
|
- private const int S33 = 16;
|
|
|
- private const int S34 = 23;
|
|
|
- private const int S41 = 6;
|
|
|
- private const int S42 = 10;
|
|
|
- private const int S43 = 15;
|
|
|
- private const int S44 = 21;
|
|
|
-
|
|
|
- //static state variables
|
|
|
- private static uint A;
|
|
|
-
|
|
|
- private static uint B;
|
|
|
- private static uint C;
|
|
|
- private static uint D;
|
|
|
-
|
|
|
- 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);
|
|
|
- }
|
|
|
-
|
|
|
- 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);
|
|
|
- }
|
|
|
-
|
|
|
- private static void FF(ref uint a, uint b, uint c, uint d, uint mj, int s, uint ti)
|
|
|
- {
|
|
|
- a = a + F(b, c, d) + mj + ti;
|
|
|
- a = (a << s) | (a >> (32 - s));
|
|
|
- a += b;
|
|
|
- }
|
|
|
-
|
|
|
- private static void GG(ref uint a, uint b, uint c, uint d, uint mj, int s, uint ti)
|
|
|
- {
|
|
|
- a = a + G(b, c, d) + mj + ti;
|
|
|
- a = (a << s) | (a >> (32 - s));
|
|
|
- a += b;
|
|
|
- }
|
|
|
-
|
|
|
- private static void HH(ref uint a, uint b, uint c, uint d, uint mj, int s, uint ti)
|
|
|
- {
|
|
|
- a = a + H(b, c, d) + mj + ti;
|
|
|
- a = (a << s) | (a >> (32 - s));
|
|
|
- a += b;
|
|
|
- }
|
|
|
-
|
|
|
- private static void II(ref uint a, uint b, uint c, uint d, uint mj, int s, uint ti)
|
|
|
- {
|
|
|
- a = a + I(b, c, d) + mj + ti;
|
|
|
- a = (a << s) | (a >> (32 - s));
|
|
|
- a += b;
|
|
|
- }
|
|
|
-
|
|
|
- private static void MD5_Init()
|
|
|
- {
|
|
|
- A = 0x67452301; //in memory, this is 0x01234567
|
|
|
- B = 0xefcdab89; //in memory, this is 0x89abcdef
|
|
|
- C = 0x98badcfe; //in memory, this is 0xfedcba98
|
|
|
- D = 0x10325476; //in memory, this is 0x76543210
|
|
|
- }
|
|
|
-
|
|
|
- private static uint[] MD5_Append(byte[] input)
|
|
|
- {
|
|
|
- int zeros;
|
|
|
- var ones = 1;
|
|
|
- int size;
|
|
|
- var n = input.Length;
|
|
|
- var m = n % 64;
|
|
|
- if (m < 56)
|
|
|
- {
|
|
|
- zeros = 55 - m;
|
|
|
- size = n - m + 64;
|
|
|
- }
|
|
|
- else if (m == 56)
|
|
|
- {
|
|
|
- zeros = 0;
|
|
|
- ones = 0;
|
|
|
- size = n + 8;
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- zeros = 63 - m + 56;
|
|
|
- size = n + 64 - m + 64;
|
|
|
- }
|
|
|
-
|
|
|
- var bs = new ArrayList(input);
|
|
|
- if (ones == 1)
|
|
|
- bs.Add((byte)0x80); // 0x80 = $10000000
|
|
|
- for (var i = 0; i < zeros; i++)
|
|
|
- bs.Add((byte)0);
|
|
|
-
|
|
|
- var N = (ulong)n * 8;
|
|
|
- var h1 = (byte)(N & 0xFF);
|
|
|
- var h2 = (byte)((N >> 8) & 0xFF);
|
|
|
- var h3 = (byte)((N >> 16) & 0xFF);
|
|
|
- var h4 = (byte)((N >> 24) & 0xFF);
|
|
|
- var h5 = (byte)((N >> 32) & 0xFF);
|
|
|
- var h6 = (byte)((N >> 40) & 0xFF);
|
|
|
- var h7 = (byte)((N >> 48) & 0xFF);
|
|
|
- var h8 = (byte)(N >> 56);
|
|
|
- bs.Add(h1);
|
|
|
- bs.Add(h2);
|
|
|
- bs.Add(h3);
|
|
|
- bs.Add(h4);
|
|
|
- bs.Add(h5);
|
|
|
- bs.Add(h6);
|
|
|
- bs.Add(h7);
|
|
|
- bs.Add(h8);
|
|
|
- var ts = (byte[])bs.ToArray(typeof(byte));
|
|
|
-
|
|
|
- /* Decodes input (byte[]) into output (UInt32[]). Assumes len is
|
|
|
- * a multiple of 4.
|
|
|
- */
|
|
|
- var output = new uint[size / 4];
|
|
|
- for (long i = 0, j = 0; i < size; j++, i += 4)
|
|
|
- output[j] = (uint)(ts[i] | (ts[i + 1] << 8) | (ts[i + 2] << 16) | (ts[i + 3] << 24));
|
|
|
- return output;
|
|
|
- }
|
|
|
-
|
|
|
- private static uint[] MD5_Trasform(uint[] x)
|
|
|
- {
|
|
|
- uint a, b, c, d;
|
|
|
-
|
|
|
- for (var k = 0; k < x.Length; k += 16)
|
|
|
- {
|
|
|
- a = A;
|
|
|
- b = B;
|
|
|
- c = C;
|
|
|
- d = D;
|
|
|
-
|
|
|
- /* Round 1 */
|
|
|
- FF(ref a, b, c, d, x[k + 0], S11, 0xd76aa478); /* 1 */
|
|
|
- FF(ref d, a, b, c, x[k + 1], S12, 0xe8c7b756); /* 2 */
|
|
|
- FF(ref c, d, a, b, x[k + 2], S13, 0x242070db); /* 3 */
|
|
|
- FF(ref b, c, d, a, x[k + 3], S14, 0xc1bdceee); /* 4 */
|
|
|
- FF(ref a, b, c, d, x[k + 4], S11, 0xf57c0faf); /* 5 */
|
|
|
- FF(ref d, a, b, c, x[k + 5], S12, 0x4787c62a); /* 6 */
|
|
|
- FF(ref c, d, a, b, x[k + 6], S13, 0xa8304613); /* 7 */
|
|
|
- FF(ref b, c, d, a, x[k + 7], S14, 0xfd469501); /* 8 */
|
|
|
- FF(ref a, b, c, d, x[k + 8], S11, 0x698098d8); /* 9 */
|
|
|
- FF(ref d, a, b, c, x[k + 9], S12, 0x8b44f7af); /* 10 */
|
|
|
- FF(ref c, d, a, b, x[k + 10], S13, 0xffff5bb1); /* 11 */
|
|
|
- FF(ref b, c, d, a, x[k + 11], S14, 0x895cd7be); /* 12 */
|
|
|
- FF(ref a, b, c, d, x[k + 12], S11, 0x6b901122); /* 13 */
|
|
|
- FF(ref d, a, b, c, x[k + 13], S12, 0xfd987193); /* 14 */
|
|
|
- FF(ref c, d, a, b, x[k + 14], S13, 0xa679438e); /* 15 */
|
|
|
- FF(ref b, c, d, a, x[k + 15], S14, 0x49b40821); /* 16 */
|
|
|
-
|
|
|
- /* Round 2 */
|
|
|
- GG(ref a, b, c, d, x[k + 1], S21, 0xf61e2562); /* 17 */
|
|
|
- GG(ref d, a, b, c, x[k + 6], S22, 0xc040b340); /* 18 */
|
|
|
- GG(ref c, d, a, b, x[k + 11], S23, 0x265e5a51); /* 19 */
|
|
|
- GG(ref b, c, d, a, x[k + 0], S24, 0xe9b6c7aa); /* 20 */
|
|
|
- GG(ref a, b, c, d, x[k + 5], S21, 0xd62f105d); /* 21 */
|
|
|
- GG(ref d, a, b, c, x[k + 10], S22, 0x2441453); /* 22 */
|
|
|
- GG(ref c, d, a, b, x[k + 15], S23, 0xd8a1e681); /* 23 */
|
|
|
- GG(ref b, c, d, a, x[k + 4], S24, 0xe7d3fbc8); /* 24 */
|
|
|
- GG(ref a, b, c, d, x[k + 9], S21, 0x21e1cde6); /* 25 */
|
|
|
- GG(ref d, a, b, c, x[k + 14], S22, 0xc33707d6); /* 26 */
|
|
|
- GG(ref c, d, a, b, x[k + 3], S23, 0xf4d50d87); /* 27 */
|
|
|
- GG(ref b, c, d, a, x[k + 8], S24, 0x455a14ed); /* 28 */
|
|
|
- GG(ref a, b, c, d, x[k + 13], S21, 0xa9e3e905); /* 29 */
|
|
|
- GG(ref d, a, b, c, x[k + 2], S22, 0xfcefa3f8); /* 30 */
|
|
|
- GG(ref c, d, a, b, x[k + 7], S23, 0x676f02d9); /* 31 */
|
|
|
- GG(ref b, c, d, a, x[k + 12], S24, 0x8d2a4c8a); /* 32 */
|
|
|
-
|
|
|
- /* Round 3 */
|
|
|
- HH(ref a, b, c, d, x[k + 5], S31, 0xfffa3942); /* 33 */
|
|
|
- HH(ref d, a, b, c, x[k + 8], S32, 0x8771f681); /* 34 */
|
|
|
- HH(ref c, d, a, b, x[k + 11], S33, 0x6d9d6122); /* 35 */
|
|
|
- HH(ref b, c, d, a, x[k + 14], S34, 0xfde5380c); /* 36 */
|
|
|
- HH(ref a, b, c, d, x[k + 1], S31, 0xa4beea44); /* 37 */
|
|
|
- HH(ref d, a, b, c, x[k + 4], S32, 0x4bdecfa9); /* 38 */
|
|
|
- HH(ref c, d, a, b, x[k + 7], S33, 0xf6bb4b60); /* 39 */
|
|
|
- HH(ref b, c, d, a, x[k + 10], S34, 0xbebfbc70); /* 40 */
|
|
|
- HH(ref a, b, c, d, x[k + 13], S31, 0x289b7ec6); /* 41 */
|
|
|
- HH(ref d, a, b, c, x[k + 0], S32, 0xeaa127fa); /* 42 */
|
|
|
- HH(ref c, d, a, b, x[k + 3], S33, 0xd4ef3085); /* 43 */
|
|
|
- HH(ref b, c, d, a, x[k + 6], S34, 0x4881d05); /* 44 */
|
|
|
- HH(ref a, b, c, d, x[k + 9], S31, 0xd9d4d039); /* 45 */
|
|
|
- HH(ref d, a, b, c, x[k + 12], S32, 0xe6db99e5); /* 46 */
|
|
|
- HH(ref c, d, a, b, x[k + 15], S33, 0x1fa27cf8); /* 47 */
|
|
|
- HH(ref b, c, d, a, x[k + 2], S34, 0xc4ac5665); /* 48 */
|
|
|
-
|
|
|
- /* Round 4 */
|
|
|
- II(ref a, b, c, d, x[k + 0], S41, 0xf4292244); /* 49 */
|
|
|
- II(ref d, a, b, c, x[k + 7], S42, 0x432aff97); /* 50 */
|
|
|
- II(ref c, d, a, b, x[k + 14], S43, 0xab9423a7); /* 51 */
|
|
|
- II(ref b, c, d, a, x[k + 5], S44, 0xfc93a039); /* 52 */
|
|
|
- II(ref a, b, c, d, x[k + 12], S41, 0x655b59c3); /* 53 */
|
|
|
- II(ref d, a, b, c, x[k + 3], S42, 0x8f0ccc92); /* 54 */
|
|
|
- II(ref c, d, a, b, x[k + 10], S43, 0xffeff47d); /* 55 */
|
|
|
- II(ref b, c, d, a, x[k + 1], S44, 0x85845dd1); /* 56 */
|
|
|
- II(ref a, b, c, d, x[k + 8], S41, 0x6fa87e4f); /* 57 */
|
|
|
- II(ref d, a, b, c, x[k + 15], S42, 0xfe2ce6e0); /* 58 */
|
|
|
- II(ref c, d, a, b, x[k + 6], S43, 0xa3014314); /* 59 */
|
|
|
- II(ref b, c, d, a, x[k + 13], S44, 0x4e0811a1); /* 60 */
|
|
|
- II(ref a, b, c, d, x[k + 4], S41, 0xf7537e82); /* 61 */
|
|
|
- II(ref d, a, b, c, x[k + 11], S42, 0xbd3af235); /* 62 */
|
|
|
- II(ref c, d, a, b, x[k + 2], S43, 0x2ad7d2bb); /* 63 */
|
|
|
- II(ref b, c, d, a, x[k + 9], S44, 0xeb86d391); /* 64 */
|
|
|
-
|
|
|
- A += a;
|
|
|
- B += b;
|
|
|
- C += c;
|
|
|
- D += d;
|
|
|
- }
|
|
|
-
|
|
|
- return new[]
|
|
|
- {
|
|
|
- A,
|
|
|
- B,
|
|
|
- C,
|
|
|
- D
|
|
|
- };
|
|
|
- }
|
|
|
-
|
|
|
- #region MD5对数组数据加密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5对数组数据加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="input">包含需要加密的数据的数组</param>
|
|
|
- /// <returns>加密后的字节流</returns>
|
|
|
- public static byte[] MD5Array(this byte[] input)
|
|
|
- {
|
|
|
- MD5_Init();
|
|
|
- var block = MD5_Append(input);
|
|
|
- var bits = MD5_Trasform(block);
|
|
|
-
|
|
|
- var output = new byte[bits.Length * 4];
|
|
|
- for (int i = 0, j = 0; i < bits.Length; i++, j += 4)
|
|
|
- {
|
|
|
- output[j] = (byte)(bits[i] & 0xff);
|
|
|
- output[j + 1] = (byte)((bits[i] >> 8) & 0xff);
|
|
|
- output[j + 2] = (byte)((bits[i] >> 16) & 0xff);
|
|
|
- output[j + 3] = (byte)((bits[i] >> 24) & 0xff);
|
|
|
- }
|
|
|
-
|
|
|
- return output;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 获取数组的Hex值
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 获取数组的Hex值
|
|
|
- /// </summary>
|
|
|
- /// <param name="array">需要求Hex值的数组</param>
|
|
|
- /// <param name="uppercase">是否转大写</param>
|
|
|
- /// <returns>字节数组的16进制表示</returns>
|
|
|
- public static string ArrayToHexString(this byte[] array, bool uppercase)
|
|
|
- {
|
|
|
- var hexString = "";
|
|
|
- var format = "x2";
|
|
|
- if (uppercase)
|
|
|
- format = "X2";
|
|
|
- foreach (var b in array)
|
|
|
- hexString += b.ToString(format);
|
|
|
- return hexString;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 对字符串进行MD5加密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对字符串进行MD5加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="message">需要加密的字符串</param>
|
|
|
- /// <returns>加密后的结果</returns>
|
|
|
- public static string MDString(this string message)
|
|
|
- {
|
|
|
- var c = message.ToCharArray();
|
|
|
- var b = new byte[c.Length];
|
|
|
- for (var i = 0; i < c.Length; i++)
|
|
|
- b[i] = (byte)c[i];
|
|
|
- var digest = MD5Array(b);
|
|
|
- return ArrayToHexString(digest, false);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对字符串进行MD5二次加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="message">需要加密的字符串</param>
|
|
|
- /// <returns>加密后的结果</returns>
|
|
|
- public static string MDString2(this string message) => MDString(MDString(message));
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5 三次加密算法
|
|
|
- /// </summary>
|
|
|
- /// <param name="s">需要加密的字符串</param>
|
|
|
- /// <returns>MD5字符串</returns>
|
|
|
- public static string MDString3(this string s)
|
|
|
- {
|
|
|
- MD5 md5 = MD5.Create();
|
|
|
- byte[] bytes = Encoding.ASCII.GetBytes(s);
|
|
|
- byte[] bytes1 = md5.ComputeHash(bytes);
|
|
|
- byte[] bytes2 = md5.ComputeHash(bytes1);
|
|
|
- byte[] bytes3 = md5.ComputeHash(bytes2);
|
|
|
-
|
|
|
- StringBuilder sb = new StringBuilder();
|
|
|
- foreach (var item in bytes3)
|
|
|
- {
|
|
|
- sb.Append(item.ToString("x").PadLeft(2, '0'));
|
|
|
- }
|
|
|
-
|
|
|
- return sb.ToString();
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对字符串进行MD5加盐加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="message">需要加密的字符串</param>
|
|
|
- /// <param name="salt">盐</param>
|
|
|
- /// <returns>加密后的结果</returns>
|
|
|
- public static string MDString(this string message, string salt) => MDString(message + salt);
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对字符串进行MD5二次加盐加密
|
|
|
- /// </summary>
|
|
|
- /// <param name="message">需要加密的字符串</param>
|
|
|
- /// <param name="salt">盐</param>
|
|
|
- /// <returns>加密后的结果</returns>
|
|
|
- public static string MDString2(this string message, string salt) => MDString(MDString(message + salt), salt);
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5 三次加密算法
|
|
|
- /// </summary>
|
|
|
- /// <param name="s">需要加密的字符串</param>
|
|
|
- /// <param name="salt">盐</param>
|
|
|
- /// <returns>MD5字符串</returns>
|
|
|
- public static string MDString3(this string s, string salt)
|
|
|
- {
|
|
|
- MD5 md5 = MD5.Create();
|
|
|
- byte[] bytes = Encoding.ASCII.GetBytes(s + salt);
|
|
|
- byte[] bytes1 = md5.ComputeHash(bytes);
|
|
|
- byte[] bytes2 = md5.ComputeHash(bytes1);
|
|
|
- byte[] bytes3 = md5.ComputeHash(bytes2);
|
|
|
-
|
|
|
- StringBuilder sb = new StringBuilder();
|
|
|
- foreach (var item in bytes3)
|
|
|
- {
|
|
|
- sb.Append(item.ToString("x").PadLeft(2, '0'));
|
|
|
- }
|
|
|
-
|
|
|
- return sb.ToString();
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 获取文件的MD5值
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 获取文件的MD5值
|
|
|
- /// </summary>
|
|
|
- /// <param name="fileName">需要求MD5值的文件的文件名及路径</param>
|
|
|
- /// <returns>MD5字符串</returns>
|
|
|
- public static string MDFile(this string fileName)
|
|
|
- {
|
|
|
- var fs = File.Open(fileName, FileMode.Open, FileAccess.Read);
|
|
|
- var array = new byte[fs.Length];
|
|
|
- fs.Read(array, 0, (int)fs.Length);
|
|
|
- var digest = MD5Array(array);
|
|
|
- fs.Close();
|
|
|
- return ArrayToHexString(digest, false);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 测试MD5加密算法的函数
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 测试MD5加密算法的函数
|
|
|
- /// </summary>
|
|
|
- /// <param name="message">需要加密的字符串</param>
|
|
|
- /// <returns>加密后的 数据</returns>
|
|
|
- private static string MD5Test(this string message)
|
|
|
- {
|
|
|
- return "rnMD5 (" + "message" + ") = " + MDString(message);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region MD5加密算法测试用数据
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// MD5加密算法测试用数据
|
|
|
- /// </summary>
|
|
|
- /// <returns> </returns>
|
|
|
- private static string TestSuite()
|
|
|
- {
|
|
|
- var s = "";
|
|
|
- s += MD5Test("");
|
|
|
- s += MD5Test("a");
|
|
|
- s += MD5Test("abc");
|
|
|
- s += MD5Test("message digest");
|
|
|
- s += MD5Test("abcdefghijklmnopqrstuvwxyz");
|
|
|
- s += MD5Test("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
|
|
|
- s += MD5Test("12345678901234567890123456789012345678901234567890123456789012345678901234567890");
|
|
|
- return s;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #endregion MD5加密算法
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// RC2加密解密算法
|
|
|
- /// </summary>
|
|
|
- public static class RC2
|
|
|
- {
|
|
|
- private static ASCIIEncoding _asciiEncoding;
|
|
|
- private static byte[] _iv;
|
|
|
- private static byte[] _key;
|
|
|
- private static RC2CryptoServiceProvider _rc2Csp;
|
|
|
- private static UnicodeEncoding _textConverter;
|
|
|
-
|
|
|
- static RC2()
|
|
|
- {
|
|
|
- InitializeComponent();
|
|
|
- }
|
|
|
-
|
|
|
- private static void InitializeComponent()
|
|
|
- {
|
|
|
- _key = new byte[]
|
|
|
- {
|
|
|
- 106,
|
|
|
- 51,
|
|
|
- 25,
|
|
|
- 141,
|
|
|
- 157,
|
|
|
- 142,
|
|
|
- 23,
|
|
|
- 111,
|
|
|
- 234,
|
|
|
- 159,
|
|
|
- 187,
|
|
|
- 154,
|
|
|
- 215,
|
|
|
- 34,
|
|
|
- 37,
|
|
|
- 204
|
|
|
- };
|
|
|
- _iv = new byte[]
|
|
|
- {
|
|
|
- 135,
|
|
|
- 186,
|
|
|
- 133,
|
|
|
- 136,
|
|
|
- 184,
|
|
|
- 149,
|
|
|
- 153,
|
|
|
- 144
|
|
|
- };
|
|
|
- _asciiEncoding = new ASCIIEncoding();
|
|
|
- _textConverter = new UnicodeEncoding();
|
|
|
- _rc2Csp = new RC2CryptoServiceProvider();
|
|
|
- }
|
|
|
-
|
|
|
- #region 新建一个大小为10261B的文件,以便将加密数据写入固定大小的文件。
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 新建一个大小为10261B的文件,以便将加密数据写入固定大小的文件。
|
|
|
- /// </summary>
|
|
|
- /// <param name="filePath">文件保存的地址,包含文件名</param>
|
|
|
- public static string InitBinFile(this string filePath)
|
|
|
- {
|
|
|
- var tmp = new byte[10261];
|
|
|
- try //创建文件流,将其内容全部写入0
|
|
|
- {
|
|
|
- var writeFileStream = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.None, 512, false);
|
|
|
-
|
|
|
- for (var i = 0; i < 10261; i++)
|
|
|
- tmp[i] = 0;
|
|
|
- writeFileStream.Write(tmp, 0, 10261);
|
|
|
- writeFileStream.Flush();
|
|
|
- writeFileStream.Close();
|
|
|
- }
|
|
|
- catch (IOException)
|
|
|
- {
|
|
|
- // MessageBox.Show("文件操作错误!", "错误!", MessageBoxButtons.OK, MessageBoxIcon.Error);
|
|
|
- return "Error,file operation error!";
|
|
|
- }
|
|
|
-
|
|
|
- return "OK";
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将文本数据加密后写入一个文件
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将文本数据加密后写入一个文件,其中,这个文件是用InitBinFile建立的,这个文件将被分成十块,
|
|
|
- /// 用来分别保存10组不同的数据,第一个byte位保留,第2位到第21位分别用来存放每块数据的长度,但
|
|
|
- /// 一个byte的取值为0-127,所以,用两个byte来存放一个长度。
|
|
|
- /// </summary>
|
|
|
- /// <param name="toEncryptText">要加密的文本数据</param>
|
|
|
- /// <param name="filePath">要写入的文件</param>
|
|
|
- /// <param name="dataIndex">写入第几块,取值为1--10</param>
|
|
|
- /// <returns>是否操作成功</returns>
|
|
|
- public static bool EncryptToFile(this string toEncryptText, string filePath, int dataIndex)
|
|
|
- {
|
|
|
- var r = false;
|
|
|
- if ((dataIndex > 10) && (dataIndex < 1))
|
|
|
- {
|
|
|
- return r;
|
|
|
- }
|
|
|
-
|
|
|
- //打开要写入的文件,主要是为了保持原文件的内容不丢失
|
|
|
- var tmpFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
-
|
|
|
- var index = new byte[10261];
|
|
|
- //将读取的内容写到byte数组
|
|
|
- tmpFileStream.Read(index, 0, 10261);
|
|
|
- tmpFileStream.Close();
|
|
|
- //定义基本的加密转换运算
|
|
|
- var Encryptor = _rc2Csp.CreateEncryptor(_key, _iv);
|
|
|
- var msEncrypt = new MemoryStream();
|
|
|
- //在此加密转换流中,加密将从csEncrypt,加密后,结果在msEncrypt流中。
|
|
|
- var csEncrypt = new CryptoStream(msEncrypt, Encryptor, CryptoStreamMode.Write);
|
|
|
- //将要加密的文本转换成UTF-16 编码,保存在tmp数组。
|
|
|
- var tmp = _textConverter.GetBytes(toEncryptText);
|
|
|
- //将tmp输入csEncrypt,将通过Encryptor来加密。
|
|
|
- csEncrypt.Write(tmp, 0, tmp.Length);
|
|
|
- //输出到msEnctypt
|
|
|
- csEncrypt.FlushFinalBlock();
|
|
|
- //将流转成byte[]
|
|
|
- var encrypted = msEncrypt.ToArray();
|
|
|
- if (encrypted.Length > 1024)
|
|
|
- return false;
|
|
|
- //得到加密后数据的大小,将结果存在指定的位置。
|
|
|
- index[dataIndex * 2 - 1] = Convert.ToByte(Convert.ToString(encrypted.Length / 128));
|
|
|
- index[dataIndex * 2] = Convert.ToByte(Convert.ToString(encrypted.Length % 128));
|
|
|
- //将加密后的结果写入index(覆盖)
|
|
|
- for (var i = 0; i < encrypted.Length; i++)
|
|
|
- index[1024 * (dataIndex - 1) + 21 + i] = encrypted[i];
|
|
|
- //建立文件流
|
|
|
- tmpFileStream = new FileStream(filePath, FileMode.Truncate, FileAccess.Write, FileShare.None, 1024, true);
|
|
|
- //写文件
|
|
|
- tmpFileStream.Write(index, 0, 10261);
|
|
|
- tmpFileStream.Flush();
|
|
|
- r = true;
|
|
|
- tmpFileStream.Close();
|
|
|
- return r;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 从一个文件中解密出一段文本,其中,这个文件是由InitBinFile建立的,并且由 EncryptToFile加密的
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 从一个文件中解密出一段文本,其中,这个文件是由InitBinFile建立的,并且由 EncryptToFile加密的
|
|
|
- /// </summary>
|
|
|
- /// <param name="filePath">要解密的文件</param>
|
|
|
- /// <param name="dataIndex">要从哪一个块中解密</param>
|
|
|
- /// <returns>解密后的文本</returns>
|
|
|
- public static string DecryptFromFile(this string filePath, int dataIndex)
|
|
|
- {
|
|
|
- var r = "";
|
|
|
- if ((dataIndex > 10) && (dataIndex < 1))
|
|
|
- {
|
|
|
- return r;
|
|
|
- }
|
|
|
-
|
|
|
- var tmpFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
-
|
|
|
- var decryptor = _rc2Csp.CreateDecryptor(_key, _iv);
|
|
|
- var msDecrypt = new MemoryStream();
|
|
|
- var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Write);
|
|
|
- var index = new byte[10261];
|
|
|
-
|
|
|
- tmpFileStream.Read(index, 0, 10261);
|
|
|
- //var startIndex = 1024 * (dataIndex - 1) + 21;
|
|
|
- var count = index[dataIndex * 2 - 1] * 128 + index[dataIndex * 2];
|
|
|
- var tmp = new byte[count];
|
|
|
-
|
|
|
- Array.Copy(index, 1024 * (dataIndex - 1) + 21, tmp, 0, count);
|
|
|
- csDecrypt.Write(tmp, 0, count);
|
|
|
- csDecrypt.FlushFinalBlock();
|
|
|
- var decrypted = msDecrypt.ToArray();
|
|
|
- r = _textConverter.GetString(decrypted, 0, decrypted.Length);
|
|
|
- tmpFileStream.Close();
|
|
|
- return r;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将一段文本加密后保存到一个文件
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将一段文本加密后保存到一个文件
|
|
|
- /// </summary>
|
|
|
- /// <param name="toEncryptText">要加密的文本数据</param>
|
|
|
- /// <param name="filePath">要保存的文件</param>
|
|
|
- /// <returns>是否加密成功</returns>
|
|
|
- public static void EncryptToFile(this string toEncryptText, string filePath)
|
|
|
- {
|
|
|
- using var tmpFileStream = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, 1024, true);
|
|
|
- using var encryptor = _rc2Csp.CreateEncryptor(_key, _iv);
|
|
|
- var msEncrypt = new MemoryStream();
|
|
|
- using var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
|
|
|
- var tmp = _textConverter.GetBytes(toEncryptText);
|
|
|
- csEncrypt.Write(tmp, 0, tmp.Length);
|
|
|
- csEncrypt.FlushFinalBlock();
|
|
|
- var encrypted = msEncrypt.ToArray();
|
|
|
- tmpFileStream.Write(encrypted, 0, encrypted.Length);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将一个被加密的文件解密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将一个被加密的文件解密
|
|
|
- /// </summary>
|
|
|
- /// <param name="filePath">要解密的文件</param>
|
|
|
- /// <returns>解密后的文本</returns>
|
|
|
- public static string DecryptFromFile(this string filePath)
|
|
|
- {
|
|
|
- using var tmpFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
- using var decryptor = _rc2Csp.CreateDecryptor(_key, _iv);
|
|
|
- var msDecrypt = new MemoryStream();
|
|
|
- using var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Write);
|
|
|
- var tmp = new byte[tmpFileStream.Length];
|
|
|
- tmpFileStream.Read(tmp, 0, tmp.Length);
|
|
|
- csDecrypt.Write(tmp, 0, tmp.Length);
|
|
|
- csDecrypt.FlushFinalBlock();
|
|
|
- var decrypted = msDecrypt.ToArray();
|
|
|
- var r = _textConverter.GetString(decrypted, 0, decrypted.Length);
|
|
|
- return r;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将文本数据加密后写入一个文件
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将文本数据加密后写入一个文件,其中,这个文件是用InitBinFile建立的,这个文件将被分成十块,
|
|
|
- /// 用来分别保存10组不同的数据,第一个byte位保留,第2位到第21位分别用来存放每块数据的长度,但
|
|
|
- /// 一个byte的取值为0-127,所以,用两个byte来存放一个长度。
|
|
|
- /// </summary>
|
|
|
- /// <param name="toEncryptText">要加密的文本数据</param>
|
|
|
- /// <param name="filePath">要写入的文件</param>
|
|
|
- /// <param name="dataIndex">写入第几块,取值为1--10</param>
|
|
|
- /// <param name="IV">初始化向量</param>
|
|
|
- /// <param name="Key">加密密匙</param>
|
|
|
- /// <returns>是否操作成功</returns>
|
|
|
- public static void EncryptToFile(this string toEncryptText, string filePath, int dataIndex, byte[] IV, byte[] Key)
|
|
|
- {
|
|
|
- if ((dataIndex > 10) && (dataIndex < 1))
|
|
|
- {
|
|
|
- return;
|
|
|
- }
|
|
|
- //打开要写入的文件,主要是为了保持原文件的内容不丢失
|
|
|
- using var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
- var index = new byte[10261];
|
|
|
- //将读取的内容写到byte数组
|
|
|
- fs.Read(index, 0, 10261);
|
|
|
-
|
|
|
- //定义基本的加密转换运算
|
|
|
- using var encryptor = _rc2Csp.CreateEncryptor(Key, IV);
|
|
|
- var msEncrypt = new MemoryStream();
|
|
|
- //在此加密转换流中,加密将从csEncrypt,加密后,结果在msEncrypt流中。
|
|
|
- using var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
|
|
|
- var tmp = _textConverter.GetBytes(toEncryptText);
|
|
|
- //将tmp输入csEncrypt,将通过Encryptor来加密。
|
|
|
- csEncrypt.Write(tmp, 0, tmp.Length);
|
|
|
- //输出到msEnctypt
|
|
|
- csEncrypt.FlushFinalBlock();
|
|
|
-
|
|
|
- //将流转成byte[]
|
|
|
- var encrypted = msEncrypt.ToArray();
|
|
|
- if (encrypted.Length > 1024)
|
|
|
- {
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- //得到加密后数据的大小,将结果存在指定的位置。
|
|
|
- index[dataIndex * 2 - 1] = Convert.ToByte(Convert.ToString(encrypted.Length / 128));
|
|
|
- index[dataIndex * 2] = Convert.ToByte(Convert.ToString(encrypted.Length % 128));
|
|
|
- //将加密后的结果写入index(覆盖)
|
|
|
- for (int i = 0; i < encrypted.Length; i++)
|
|
|
- {
|
|
|
- index[1024 * (dataIndex - 1) + 21 + i] = encrypted[i];
|
|
|
- }
|
|
|
-
|
|
|
- //建立文件流
|
|
|
- using var newStream = new FileStream(filePath, FileMode.Truncate, FileAccess.Write, FileShare.None, 1024, true);
|
|
|
- newStream.Write(index, 0, 10261);
|
|
|
- newStream.Flush();
|
|
|
- newStream.Close();
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 从一个文件中解密出一段文本
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 从一个文件中解密出一段文本,其中,这个文件是由InitBinFile建立的,并且由 EncryptToFile加密的
|
|
|
- /// </summary>
|
|
|
- /// <param name="filePath">要解密的文件</param>
|
|
|
- /// <param name="dataIndex">要从哪一个块中解密</param>
|
|
|
- /// <param name="iv">初始化向量</param>
|
|
|
- /// <param name="key">解密密匙</param>
|
|
|
- /// <returns>解密后的文本</returns>
|
|
|
- public static string DecryptFromFile(this string filePath, int dataIndex, byte[] iv, byte[] key)
|
|
|
- {
|
|
|
- if ((dataIndex > 10) && (dataIndex < 1))
|
|
|
- {
|
|
|
- return "";
|
|
|
- }
|
|
|
-
|
|
|
- using var tmpFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
- using var decryptor = _rc2Csp.CreateDecryptor(key, iv);
|
|
|
- var msDecrypt = new MemoryStream();
|
|
|
- using var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Write);
|
|
|
- var index = new byte[10261];
|
|
|
-
|
|
|
- tmpFileStream.Read(index, 0, 10261);
|
|
|
- var count = index[dataIndex * 2 - 1] * 128 + index[dataIndex * 2];
|
|
|
- var tmp = new byte[count];
|
|
|
-
|
|
|
- Array.Copy(index, 1024 * (dataIndex - 1) + 21, tmp, 0, count);
|
|
|
- csDecrypt.Write(tmp, 0, count);
|
|
|
- csDecrypt.FlushFinalBlock();
|
|
|
- var decrypted = msDecrypt.ToArray();
|
|
|
- return _textConverter.GetString(decrypted, 0, decrypted.Length);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将一段文本加密后保存到一个文件
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将一段文本加密后保存到一个文件
|
|
|
- /// </summary>
|
|
|
- /// <param name="toEncryptText">要加密的文本数据</param>
|
|
|
- /// <param name="filePath">要保存的文件</param>
|
|
|
- /// <param name="iv">初始化向量</param>
|
|
|
- /// <param name="key">加密密匙</param>
|
|
|
- /// <returns>是否加密成功</returns>
|
|
|
- public static void EncryptToFile(this string toEncryptText, string filePath, byte[] iv, byte[] key)
|
|
|
- {
|
|
|
- using var tmpFileStream = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, 1024, true);
|
|
|
- using var encryptor = _rc2Csp.CreateEncryptor(key, iv);
|
|
|
- var msEncrypt = new MemoryStream();
|
|
|
- using var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
|
|
|
- var tmp = _textConverter.GetBytes(toEncryptText);
|
|
|
- csEncrypt.Write(tmp, 0, tmp.Length);
|
|
|
- csEncrypt.FlushFinalBlock();
|
|
|
- var encrypted = msEncrypt.ToArray();
|
|
|
- tmpFileStream.Write(encrypted, 0, encrypted.Length);
|
|
|
- tmpFileStream.Flush();
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 将一个被加密的文件解密
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 将一个被加密的文件解密
|
|
|
- /// </summary>
|
|
|
- /// <param name="filePath">要解密的文件</param>
|
|
|
- /// <param name="iv">初始化向量</param>
|
|
|
- /// <param name="key">解密密匙</param>
|
|
|
- /// <returns>解密后的文本</returns>
|
|
|
- public static string DecryptFromFile(this string filePath, byte[] iv, byte[] key)
|
|
|
- {
|
|
|
- using var tmpFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 1024, true);
|
|
|
- using var decryptor = _rc2Csp.CreateDecryptor(key, iv);
|
|
|
- var msDecrypt = new MemoryStream();
|
|
|
- using var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Write);
|
|
|
- var tmp = new byte[tmpFileStream.Length];
|
|
|
- tmpFileStream.Read(tmp, 0, tmp.Length);
|
|
|
- csDecrypt.Write(tmp, 0, tmp.Length);
|
|
|
- csDecrypt.FlushFinalBlock();
|
|
|
- var decrypted = msDecrypt.ToArray();
|
|
|
- return _textConverter.GetString(decrypted, 0, decrypted.Length);
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 设置加密或解密的初始化向量
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 设置加密或解密的初始化向量
|
|
|
- /// </summary>
|
|
|
- /// <param name="s">长度等于8的ASCII字符集的字符串</param>
|
|
|
- public static void SetIV(this string s)
|
|
|
- {
|
|
|
- if (s.Length != 8)
|
|
|
- {
|
|
|
- // MessageBox.Show("输入的字符串必须为长度为8的且属于ASCII字符集的字符串");
|
|
|
- _iv = null;
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- try
|
|
|
- {
|
|
|
- _iv = _asciiEncoding.GetBytes(s);
|
|
|
- }
|
|
|
- catch (Exception)
|
|
|
- {
|
|
|
- // MessageBox.Show("输入的字符串必须为长度为8的且属于ASCII字符集的字符串");
|
|
|
- _iv = null;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- #region 设置加密或解密的密匙
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 设置加密或解密的密匙
|
|
|
- /// </summary>
|
|
|
- /// <param name="s">长度等于16的ASCII字符集的字符串</param>
|
|
|
- public static void SetKey(this string s)
|
|
|
- {
|
|
|
- if (s.Length != 16)
|
|
|
- {
|
|
|
- // MessageBox.Show("输入的字符串必须为长度为16的且属于ASCII字符集的字符串");
|
|
|
- _key = null;
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- try
|
|
|
- {
|
|
|
- _key = _asciiEncoding.GetBytes(s);
|
|
|
- }
|
|
|
- catch (Exception)
|
|
|
- {
|
|
|
- //MessageBox.Show("输入的字符串必须为长度为16的且属于ASCII字符集的字符串");
|
|
|
- _key = null;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- #endregion
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对称加密解密算法类
|
|
|
- /// </summary>
|
|
|
- public static class Rijndael
|
|
|
- {
|
|
|
- private static string _key;
|
|
|
- private static SymmetricAlgorithm _mobjCryptoService;
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 对称加密类的构造函数
|
|
|
- /// </summary>
|
|
|
- public static void SymmetricMethod()
|
|
|
- {
|
|
|
- _mobjCryptoService = new RijndaelManaged();
|
|
|
- _key = "Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7";
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 获得密钥
|
|
|
- /// </summary>
|
|
|
- /// <returns>密钥</returns>
|
|
|
- private static byte[] GetLegalKey()
|
|
|
- {
|
|
|
- var sTemp = _key;
|
|
|
- _mobjCryptoService.GenerateKey();
|
|
|
- var bytTemp = _mobjCryptoService.Key;
|
|
|
- var keyLength = bytTemp.Length;
|
|
|
- if (sTemp.Length > keyLength)
|
|
|
- sTemp = sTemp.Substring(0, keyLength);
|
|
|
- else if (sTemp.Length < keyLength)
|
|
|
- sTemp = sTemp.PadRight(keyLength, ' ');
|
|
|
- return Encoding.ASCII.GetBytes(sTemp);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 获得初始向量IV
|
|
|
- /// </summary>
|
|
|
- /// <returns>初试向量IV</returns>
|
|
|
- private static byte[] GetLegalIV()
|
|
|
- {
|
|
|
- var sTemp = "E4ghj*Ghg7!rNIfb&95GUY86GfghUber57HBh(u%g6HJ($jhWk7&!hg4ui%$hjk";
|
|
|
- _mobjCryptoService.GenerateIV();
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|
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- var bytTemp = _mobjCryptoService.IV;
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|
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- var ivLength = bytTemp.Length;
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|
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- if (sTemp.Length > ivLength)
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- sTemp = sTemp.Substring(0, ivLength);
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|
- else if (sTemp.Length < ivLength)
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|
|
- sTemp = sTemp.PadRight(ivLength, ' ');
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|
|
- return Encoding.ASCII.GetBytes(sTemp);
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|
|
- }
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|
|
-
|
|
|
- /// <summary>
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|
|
- /// 加密方法
|
|
|
- /// </summary>
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|
|
- /// <param name="source">待加密的串</param>
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|
|
- /// <returns>经过加密的串</returns>
|
|
|
- public static string Encrypto(this string source)
|
|
|
- {
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|
|
- var bytIn = Encoding.UTF8.GetBytes(source);
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|
|
- var ms = new MemoryStream();
|
|
|
- _mobjCryptoService.Key = GetLegalKey();
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|
|
- _mobjCryptoService.IV = GetLegalIV();
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|
|
- var encrypto = _mobjCryptoService.CreateEncryptor();
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|
|
- var cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Write);
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|
|
- cs.Write(bytIn, 0, bytIn.Length);
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|
|
- cs.FlushFinalBlock();
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|
|
- ms.Close();
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|
|
- var bytOut = ms.ToArray();
|
|
|
- return Convert.ToBase64String(bytOut);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 解密方法
|
|
|
- /// </summary>
|
|
|
- /// <param name="source">待解密的串</param>
|
|
|
- /// <returns>经过解密的串</returns>
|
|
|
- public static string Decrypto(this string source)
|
|
|
- {
|
|
|
- var bytIn = Convert.FromBase64String(source);
|
|
|
- var ms = new MemoryStream(bytIn, 0, bytIn.Length);
|
|
|
- _mobjCryptoService.Key = GetLegalKey();
|
|
|
- _mobjCryptoService.IV = GetLegalIV();
|
|
|
- var encrypto = _mobjCryptoService.CreateDecryptor();
|
|
|
- var cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Read);
|
|
|
- var sr = new StreamReader(cs);
|
|
|
- return sr.ReadToEnd();
|
|
|
- }
|
|
|
- }
|
|
|
-}
|