加密解密帮助类
简单说一下加密解密：
加密解密有挺多中的方式去实现，今天呢我做为宇宙第一帅的人就给大家来分享以下源代码！听清楚是源代码哦！！
话不多说上干货
1：MD5加密/解密
- 1 using System;
- 2 using System.Collections.Generic;
- 3 using System.Text;
- 4 using System.Web;
- 5 using System.Text.RegularExpressions;
- 6
- 7 namespace hic.Common
- 8 {
- 9 public class SecurityHelper
- 10 {
- 11 /// <summary>
- 12 /// MD5字符串加密
- 13 /// </summary>
- 14 /// <param name="source">待加密字符串</param>
- 15 /// <returns></returns>
- 16 public static string MD5(string source)
- 17 {
- 18 return MD5(source, true);
- 19 }
- 20
- 21 /// <summary>
- 22 /// MD5字符串加密
- 23 /// </summary>
- 24 /// <param name="source">待加密字符串</param>
- 25 /// <param name="ishalf">加密是16位还是32位，如果为true则是16位。</param>
- 26 /// <returns></returns>
- 27 public static string MD5(string source, bool ishalf)
- 28 {
- 29 string outputStr = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(source, "MD5").ToLower();
- 30 if (ishalf)//16位MD5加密（取32位加密的9~25字符）
- 31 outputStr = outputStr.Substring(8, 16);
- 32 return outputStr;
- 33 }
- 34
- 35 /// <summary>
- 36 /// 对字符串进行Base64编码
- 37 /// </summary>
- 38 /// <param name="source">待编码字符串</param>
- 39 /// <returns></returns>
- 40 public static string EncodeBase64(string source)
- 41 {
- 42 UnicodeEncoding code = new UnicodeEncoding();
- 43 byte[] bytes = code.GetBytes(source);
- 44 return Convert.ToBase64String(bytes);
- 45 }
- 46
- 47 /// <summary>
- 48 /// 对字符串进行Base64解码
- 49 /// </summary>
- 50 /// <param name="source">待解码字符串</param>
- 51 /// <returns></returns>
- 52 public static string DecodeBase64(string source)
- 53 {
- 54 UnicodeEncoding code = new UnicodeEncoding();
- 55 byte[] bytes = Convert.FromBase64String(source);
- 56 return code.GetString(bytes);
- 57 }
- 58
- 59 /// <summary>
- 60 /// 检查当前IP是否是受限IP
- 61 /// </summary>
- 62 /// <param name="LimitedIP">受限的IP，格式如:192.168.1.110|212.235.*.*|232.*.*.*</param>
- 63 /// <returns>返回true表示IP未受到限制</returns>
- 64 public static bool CheckIPIsLimited(string limitedIP)
- 65 {
- 66 string currentIP = GetUserIP();
- 67 if (limitedIP == null || limitedIP.Trim() == string.Empty)
- 68 return true;
- 69 limitedIP.Replace(".", @"\.");
- 70 limitedIP.Replace("*", @"[^\.]{1,3}");
- 71 Regex reg = new Regex(limitedIP, RegexOptions.Compiled);
- 72 Match match = reg.Match(currentIP);
- 73 return !match.Success;
- 74 }
- 75
- 76 /// <summary>
- 77 /// 得到用户IP
- 78 /// </summary>
- 79 /// <returns></returns>
- 80 public static string GetUserIP()
- 81 {
- 82 return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
- 83 }
- 84 }
- 85 }
View Code
2：DES加密/解密类
- 1 using System;
- 2 using System.Security.Cryptography;
- 3 using System.Text;
- 4 namespace Maticsoft.Common.DEncrypt
- 5 {
- 6 /// <summary>
- 7 /// DES加密/解密类。
- 8 /// LiTianPing
- 9 /// </summary>
- 10 public class DESEncrypt
- 11 {
- 12 public DESEncrypt()
- 13 {
- 14 }
- 15
- 16 #region ========加密========
- 17
- 18 /// <summary>
- 19 /// 加密
- 20 /// </summary>
- 21 /// <param name="Text"></param>
- 22 /// <returns></returns>
- 23 public static string Encrypt(string Text)
- 24 {
- 25 return Encrypt(Text,"MATICSOFT");
- 26 }
- 27 /// <summary>
- 28 /// 加密数据
- 29 /// </summary>
- 30 /// <param name="Text"></param>
- 31 /// <param name="sKey"></param>
- 32 /// <returns></returns>
- 33 public static string Encrypt(string Text,string sKey)
- 34 {
- 35 DESCryptoServiceProvider des = new DESCryptoServiceProvider();
- 36 byte[] inputByteArray;
- 37 inputByteArray=Encoding.Default.GetBytes(Text);
- 38 des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
- 39 des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
- 40 System.IO.MemoryStream ms=new System.IO.MemoryStream();
- 41 CryptoStream cs=new CryptoStream(ms,des.CreateEncryptor(),CryptoStreamMode.Write);
- 42 cs.Write(inputByteArray,0,inputByteArray.Length);
- 43 cs.FlushFinalBlock();
- 44 StringBuilder ret=new StringBuilder();
- 45 foreach( byte b in ms.ToArray())
- 46 {
- 47 ret.AppendFormat("{0:X2}",b);
- 48 }
- 49 return ret.ToString();
- 50 }
- 51
- 52 #endregion
- 53
- 54 #region ========解密========
- 55
- 56
- 57 /// <summary>
- 58 /// 解密
- 59 /// </summary>
- 60 /// <param name="Text"></param>
- 61 /// <returns></returns>
- 62 public static string Decrypt(string Text)
- 63 {
- 64 return Decrypt(Text,"MATICSOFT");
- 65 }
- 66 /// <summary>
- 67 /// 解密数据
- 68 /// </summary>
- 69 /// <param name="Text"></param>
- 70 /// <param name="sKey"></param>
- 71 /// <returns></returns>
- 72 public static string Decrypt(string Text,string sKey)
- 73 {
- 74 DESCryptoServiceProvider des = new DESCryptoServiceProvider();
- 75 int len;
- 76 len=Text.Length/2;
- 77 byte[] inputByteArray = new byte[len];
- 78 int x,i;
- 79 for(x=0;x<len;x++)
- 80 {
- 81 i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
- 82 inputByteArray[x]=(byte)i;
- 83 }
- 84 des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
- 85 des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
- 86 System.IO.MemoryStream ms=new System.IO.MemoryStream();
- 87 CryptoStream cs=new CryptoStream(ms,des.CreateDecryptor(),CryptoStreamMode.Write);
- 88 cs.Write(inputByteArray,0,inputByteArray.Length);
- 89 cs.FlushFinalBlock();
- 90 return Encoding.Default.GetString(ms.ToArray());
- 91 }
- 92
- 93 #endregion
- 94
- 95
- 96 }
- 97 }
View Code
3：RSA加密解密及RSA签名和验证
- 1 using System;
- 2 using System.Text;
- 3 using System.Security.Cryptography;
- 4 namespace Maticsoft.Common.DEncrypt
- 5 {
- 6 /// <summary>
- 7 /// RSA加密解密及RSA签名和验证
- 8 /// </summary>
- 9 public class RSACryption
- 10 {
- 11 public RSACryption()
- 12 {
- 13 }
- 14
- 15
- 16 #region RSA 加密解密
- 17
- 18 #region RSA 的密钥产生
- 19
- 20 /// <summary>
- 21 /// RSA 的密钥产生 产生私钥 和公钥
- 22 /// </summary>
- 23 /// <param name="xmlKeys"></param>
- 24 /// <param name="xmlPublicKey"></param>
- 25 public void RSAKey(out string xmlKeys,out string xmlPublicKey)
- 26 {
- 27 System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
- 28 xmlKeys=rsa.ToXmlString(true);
- 29 xmlPublicKey = rsa.ToXmlString(false);
- 30 }
- 31 #endregion
- 32
- 33 #region RSA的加密函数
- 34 //##############################################################################
- 35 //RSA 方式加密
- 36 //说明KEY必须是XML的行式,返回的是字符串
- 37 //在有一点需要说明！！该加密方式有 长度 限制的！！
- 38 //##############################################################################
- 39
- 40 //RSA的加密函数 string
- 41 public string RSAEncrypt(string xmlPublicKey,string m_strEncryptString )
- 42 {
- 43
- 44 byte[] PlainTextBArray;
- 45 byte[] CypherTextBArray;
- 46 string Result;
- 47 RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
- 48 rsa.FromXmlString(xmlPublicKey);
- 49 PlainTextBArray = (new UnicodeEncoding()).GetBytes(m_strEncryptString);
- 50 CypherTextBArray = rsa.Encrypt(PlainTextBArray, false);
- 51 Result=Convert.ToBase64String(CypherTextBArray);
- 52 return Result;
- 53
- 54 }
- 55 //RSA的加密函数 byte[]
- 56 public string RSAEncrypt(string xmlPublicKey,byte[] EncryptString )
- 57 {
- 58
- 59 byte[] CypherTextBArray;
- 60 string Result;
- 61 RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
- 62 rsa.FromXmlString(xmlPublicKey);
- 63 CypherTextBArray = rsa.Encrypt(EncryptString, false);
- 64 Result=Convert.ToBase64String(CypherTextBArray);
- 65 return Result;
- 66
- 67 }
- 68 #endregion
- 69
- 70 #region RSA的解密函数
- 71 //RSA的解密函数 string
- 72 public string RSADecrypt(string xmlPrivateKey, string m_strDecryptString )
- 73 {
- 74 byte[] PlainTextBArray;
- 75 byte[] DypherTextBArray;
- 76 string Result;
- 77 System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
- 78 rsa.FromXmlString(xmlPrivateKey);
- 79 PlainTextBArray =Convert.FromBase64String(m_strDecryptString);
- 80 DypherTextBArray=rsa.Decrypt(PlainTextBArray, false);
- 81 Result=(new UnicodeEncoding()).GetString(DypherTextBArray);
- 82 return Result;
- 83
- 84 }
- 85
- 86 //RSA的解密函数 byte
- 87 public string RSADecrypt(string xmlPrivateKey, byte[] DecryptString )
- 88 {
- 89 byte[] DypherTextBArray;
- 90 string Result;
- 91 System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
- 92 rsa.FromXmlString(xmlPrivateKey);
- 93 DypherTextBArray=rsa.Decrypt(DecryptString, false);
- 94 Result=(new UnicodeEncoding()).GetString(DypherTextBArray);
- 95 return Result;
- 96
- 97 }
- 98 #endregion
- 99
- 100 #endregion
- 101
- 102 #region RSA数字签名
- 103
- 104 #region 获取Hash描述表
- 105 //获取Hash描述表
- 106 public bool GetHash(string m_strSource, ref byte[] HashData)
- 107 {
- 108 //从字符串中取得Hash描述
- 109 byte[] Buffer;
- 110 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
- 111 Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource);
- 112 HashData = MD5.ComputeHash(Buffer);
- 113
- 114 return true;
- 115 }
- 116
- 117 //获取Hash描述表
- 118 public bool GetHash(string m_strSource, ref string strHashData)
- 119 {
- 120
- 121 //从字符串中取得Hash描述
- 122 byte[] Buffer;
- 123 byte[] HashData;
- 124 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
- 125 Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource);
- 126 HashData = MD5.ComputeHash(Buffer);
- 127
- 128 strHashData = Convert.ToBase64String(HashData);
- 129 return true;
- 130
- 131 }
- 132
- 133 //获取Hash描述表
- 134 public bool GetHash(System.IO.FileStream objFile, ref byte[] HashData)
- 135 {
- 136
- 137 //从文件中取得Hash描述
- 138 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
- 139 HashData = MD5.ComputeHash(objFile);
- 140 objFile.Close();
- 141
- 142 return true;
- 143
- 144 }
- 145
- 146 //获取Hash描述表
- 147 public bool GetHash(System.IO.FileStream objFile, ref string strHashData)
- 148 {
- 149
- 150 //从文件中取得Hash描述
- 151 byte[] HashData;
- 152 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
- 153 HashData = MD5.ComputeHash(objFile);
- 154 objFile.Close();
- 155
- 156 strHashData = Convert.ToBase64String(HashData);
- 157
- 158 return true;
- 159
- 160 }
- 161 #endregion
- 162
- 163 #region RSA签名
- 164 //RSA签名
- 165 public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref byte[] EncryptedSignatureData)
- 166 {
- 167
- 168 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 169
- 170 RSA.FromXmlString(p_strKeyPrivate);
- 171 System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
- 172 //设置签名的算法为MD5
- 173 RSAFormatter.SetHashAlgorithm("MD5");
- 174 //执行签名
- 175 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
- 176
- 177 return true;
- 178
- 179 }
- 180
- 181 //RSA签名
- 182 public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref string m_strEncryptedSignatureData)
- 183 {
- 184
- 185 byte[] EncryptedSignatureData;
- 186
- 187 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 188
- 189 RSA.FromXmlString(p_strKeyPrivate);
- 190 System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
- 191 //设置签名的算法为MD5
- 192 RSAFormatter.SetHashAlgorithm("MD5");
- 193 //执行签名
- 194 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
- 195
- 196 m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData);
- 197
- 198 return true;
- 199
- 200 }
- 201
- 202 //RSA签名
- 203 public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref byte[] EncryptedSignatureData)
- 204 {
- 205
- 206 byte[] HashbyteSignature;
- 207
- 208 HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature);
- 209 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 210
- 211 RSA.FromXmlString(p_strKeyPrivate);
- 212 System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
- 213 //设置签名的算法为MD5
- 214 RSAFormatter.SetHashAlgorithm("MD5");
- 215 //执行签名
- 216 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
- 217
- 218 return true;
- 219
- 220 }
- 221
- 222 //RSA签名
- 223 public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref string m_strEncryptedSignatureData)
- 224 {
- 225
- 226 byte[] HashbyteSignature;
- 227 byte[] EncryptedSignatureData;
- 228
- 229 HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature);
- 230 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 231
- 232 RSA.FromXmlString(p_strKeyPrivate);
- 233 System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
- 234 //设置签名的算法为MD5
- 235 RSAFormatter.SetHashAlgorithm("MD5");
- 236 //执行签名
- 237 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
- 238
- 239 m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData);
- 240
- 241 return true;
- 242
- 243 }
- 244 #endregion
- 245
- 246 #region RSA 签名验证
- 247
- 248 public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, byte[] DeformatterData)
- 249 {
- 250
- 251 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 252
- 253 RSA.FromXmlString(p_strKeyPublic);
- 254 System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
- 255 //指定解密的时候HASH算法为MD5
- 256 RSADeformatter.SetHashAlgorithm("MD5");
- 257
- 258 if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData))
- 259 {
- 260 return true;
- 261 }
- 262 else
- 263 {
- 264 return false;
- 265 }
- 266
- 267 }
- 268
- 269 public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, byte[] DeformatterData)
- 270 {
- 271
- 272 byte[] HashbyteDeformatter;
- 273
- 274 HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter);
- 275
- 276 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 277
- 278 RSA.FromXmlString(p_strKeyPublic);
- 279 System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
- 280 //指定解密的时候HASH算法为MD5
- 281 RSADeformatter.SetHashAlgorithm("MD5");
- 282
- 283 if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData))
- 284 {
- 285 return true;
- 286 }
- 287 else
- 288 {
- 289 return false;
- 290 }
- 291
- 292 }
- 293
- 294 public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, string p_strDeformatterData)
- 295 {
- 296
- 297 byte[] DeformatterData;
- 298
- 299 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 300
- 301 RSA.FromXmlString(p_strKeyPublic);
- 302 System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
- 303 //指定解密的时候HASH算法为MD5
- 304 RSADeformatter.SetHashAlgorithm("MD5");
- 305
- 306 DeformatterData =Convert.FromBase64String(p_strDeformatterData);
- 307
- 308 if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData))
- 309 {
- 310 return true;
- 311 }
- 312 else
- 313 {
- 314 return false;
- 315 }
- 316
- 317 }
- 318
- 319 public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, string p_strDeformatterData)
- 320 {
- 321
- 322 byte[] DeformatterData;
- 323 byte[] HashbyteDeformatter;
- 324
- 325 HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter);
- 326 System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
- 327
- 328 RSA.FromXmlString(p_strKeyPublic);
- 329 System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
- 330 //指定解密的时候HASH算法为MD5
- 331 RSADeformatter.SetHashAlgorithm("MD5");
- 332
- 333 DeformatterData =Convert.FromBase64String(p_strDeformatterData);
- 334
- 335 if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData))
- 336 {
- 337 return true;
- 338 }
- 339 else
- 340 {
- 341 return false;
- 342 }
- 343
- 344 }
- 345
- 346
- 347 #endregion
- 348
- 349
- 350 #endregion
- 351
- 352 }
- 353 }
View Code
4：哈希加密/解密
- 1 using System;
- 2 using System.Text;
- 3 using System.Security.Cryptography;
- 4 namespace Maticsoft.Common.DEncrypt
- 5 {
- 6 /// <summary>
- 7 /// 得到随机安全码（哈希加密）。
- 8 /// </summary>
- 9 public class HashEncode
- 10 {
- 11 public HashEncode()
- 12 {
- 13 //
- 14 // TODO: 在此处添加构造函数逻辑
- 15 //
- 16 }
- 17 /// <summary>
- 18 /// 得到随机哈希加密字符串
- 19 /// </summary>
- 20 /// <returns></returns>
- 21 public static string GetSecurity()
- 22 {
- 23 string Security = HashEncoding(GetRandomValue());
- 24 return Security;
- 25 }
- 26 /// <summary>
- 27 /// 得到一个随机数值
- 28 /// </summary>
- 29 /// <returns></returns>
- 30 public static string GetRandomValue()
- 31 {
- 32 Random Seed = new Random();
- 33 string RandomVaule = Seed.Next(1, int.MaxValue).ToString();
- 34 return RandomVaule;
- 35 }
- 36 /// <summary>
- 37 /// 哈希加密一个字符串
- 38 /// </summary>
- 39 /// <param name="Security"></param>
- 40 /// <returns></returns>
- 41 public static string HashEncoding(string Security)
- 42 {
- 43 byte[] Value;
- 44 UnicodeEncoding Code = new UnicodeEncoding();
- 45 byte[] Message = Code.GetBytes(Security);
- 46 SHA512Managed Arithmetic = new SHA512Managed();
- 47 Value = Arithmetic.ComputeHash(Message);
- 48 Security = "";
- 49 foreach(byte o in Value)
- 50 {
- 51 Security += (int) o + "O";
- 52 }
- 53 return Security;
- 54 }
- 55 }
- 56 }
View Code
5：Encrypt
- 1 using System;
- 2 using System.Security.Cryptography;
- 3 using System.Text;
- 4 namespace Maticsoft.Common.DEncrypt
- 5 {
- 6 /// <summary>
- 7 /// Encrypt 的摘要说明。
- 8 /// LiTianPing
- 9 /// </summary>
- 10 public class DEncrypt
- 11 {
- 12 /// <summary>
- 13 /// 构造方法
- 14 /// </summary>
- 15 public DEncrypt()
- 16 {
- 17 }
- 18
- 19 #region 使用 缺省密钥字符串 加密/解密string
- 20
- 21 /// <summary>
- 22 /// 使用缺省密钥字符串加密string
- 23 /// </summary>
- 24 /// <param name="original">明文</param>
- 25 /// <returns>密文</returns>
- 26 public static string Encrypt(string original)
- 27 {
- 28 return Encrypt(original,"MATICSOFT");
- 29 }
- 30 /// <summary>
- 31 /// 使用缺省密钥字符串解密string
- 32 /// </summary>
- 33 /// <param name="original">密文</param>
- 34 /// <returns>明文</returns>
- 35 public static string Decrypt(string original)
- 36 {
- 37 return Decrypt(original,"MATICSOFT",System.Text.Encoding.Default);
- 38 }
- 39
- 40 #endregion
- 41
- 42 #region 使用 给定密钥字符串 加密/解密string
- 43 /// <summary>
- 44 /// 使用给定密钥字符串加密string
- 45 /// </summary>
- 46 /// <param name="original">原始文字</param>
- 47 /// <param name="key">密钥</param>
- 48 /// <param name="encoding">字符编码方案</param>
- 49 /// <returns>密文</returns>
- 50 public static string Encrypt(string original, string key)
- 51 {
- 52 byte[] buff = System.Text.Encoding.Default.GetBytes(original);
- 53 byte[] kb = System.Text.Encoding.Default.GetBytes(key);
- 54 return Convert.ToBase64String(Encrypt(buff,kb));
- 55 }
- 56 /// <summary>
- 57 /// 使用给定密钥字符串解密string
- 58 /// </summary>
- 59 /// <param name="original">密文</param>
- 60 /// <param name="key">密钥</param>
- 61 /// <returns>明文</returns>
- 62 public static string Decrypt(string original, string key)
- 63 {
- 64 return Decrypt(original,key,System.Text.Encoding.Default);
- 65 }
- 66
- 67 /// <summary>
- 68 /// 使用给定密钥字符串解密string,返回指定编码方式明文
- 69 /// </summary>
- 70 /// <param name="encrypted">密文</param>
- 71 /// <param name="key">密钥</param>
- 72 /// <param name="encoding">字符编码方案</param>
- 73 /// <returns>明文</returns>
- 74 public static string Decrypt(string encrypted, string key,Encoding encoding)
- 75 {
- 76 byte[] buff = Convert.FromBase64String(encrypted);
- 77 byte[] kb = System.Text.Encoding.Default.GetBytes(key);
- 78 return encoding.GetString(Decrypt(buff,kb));
- 79 }
- 80 #endregion
- 81
- 82 #region 使用 缺省密钥字符串 加密/解密/byte[]
- 83 /// <summary>
- 84 /// 使用缺省密钥字符串解密byte[]
- 85 /// </summary>
- 86 /// <param name="encrypted">密文</param>
- 87 /// <param name="key">密钥</param>
- 88 /// <returns>明文</returns>
- 89 public static byte[] Decrypt(byte[] encrypted)
- 90 {
- 91 byte[] key = System.Text.Encoding.Default.GetBytes("MATICSOFT");
- 92 return Decrypt(encrypted,key);
- 93 }
- 94 /// <summary>
- 95 /// 使用缺省密钥字符串加密
- 96 /// </summary>
- 97 /// <param name="original">原始数据</param>
- 98 /// <param name="key">密钥</param>
- 99 /// <returns>密文</returns>
- 100 public static byte[] Encrypt(byte[] original)
- 101 {
- 102 byte[] key = System.Text.Encoding.Default.GetBytes("MATICSOFT");
- 103 return Encrypt(original,key);
- 104 }
- 105 #endregion
- 106
- 107 #region 使用 给定密钥 加密/解密/byte[]
- 108
- 109 /// <summary>
- 110 /// 生成MD5摘要
- 111 /// </summary>
- 112 /// <param name="original">数据源</param>
- 113 /// <returns>摘要</returns>
- 114 public static byte[] MakeMD5(byte[] original)
- 115 {
- 116 MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
- 117 byte[] keyhash = hashmd5.ComputeHash(original);
- 118 hashmd5 = null;
- 119 return keyhash;
- 120 }
- 121
- 122
- 123 /// <summary>
- 124 /// 使用给定密钥加密
- 125 /// </summary>
- 126 /// <param name="original">明文</param>
- 127 /// <param name="key">密钥</param>
- 128 /// <returns>密文</returns>
- 129 public static byte[] Encrypt(byte[] original, byte[] key)
- 130 {
- 131 TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider();
- 132 des.Key = MakeMD5(key);
- 133 des.Mode = CipherMode.ECB;
- 134
- 135 return des.CreateEncryptor().TransformFinalBlock(original, 0, original.Length);
- 136 }
- 137
- 138 /// <summary>
- 139 /// 使用给定密钥解密数据
- 140 /// </summary>
- 141 /// <param name="encrypted">密文</param>
- 142 /// <param name="key">密钥</param>
- 143 /// <returns>明文</returns>
- 144 public static byte[] Decrypt(byte[] encrypted, byte[] key)
- 145 {
- 146 TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider();
- 147 des.Key = MakeMD5(key);
- 148 des.Mode = CipherMode.ECB;
- 149
- 150 return des.CreateDecryptor().TransformFinalBlock(encrypted, 0, encrypted.Length);
- 151 }
- 152
- 153 #endregion
- 154
- 155
- 156
- 157
- 158 }
- 159 }
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