滚码加密 tearsroad 7月 04, 2023 31 0 首先，感谢我的技术总监，夏总，在这里将滚码加密类做出整理 using System;<br /> using System.Collections.Generic;<br /> using System.Linq;<br /> using System.Web;<br /> using System.Security.Cryptography;<br /> using System.IO;<br /> using System.Text;</p> <p>namespace WebTEST<br /> {<br /> public class EncriptManager<br /> {<br /> // Fields<br /> private KeyManager _keyManager;<br /> private SymCryptography _maskCriptor;</p> <p> // Methods<br /> public EncriptManager()<br /> {<br /> this._keyManager = new KeyManager();<br /> this._maskCriptor = new SymCryptography(“TripleDES”);<br /> this._maskCriptor.Key = “Web%HMKMJgfccg$%%^^&kkksl12312%&”;<br /> }</p> <p> public EncriptManager(string key)<br /> {<br /> this._keyManager = new KeyManager();<br /> this._maskCriptor = new SymCryptography(“TripleDES”);<br /> this._maskCriptor.Key = key;<br /> }</p> <p> public static void clearBytes(byte[] Buffer)<br /> {<br /> if (Buffer == null)<br /> {<br /> throw new ArgumentException(“Buffer”);<br /> }<br /> for (int num1 = 0; num1 <= (Buffer.Length – 1); num1++)<br /> {<br /> Buffer[num1] = 0;<br /> }<br /> }</p> <p> public static byte[] createRandomSalt(int Length)<br /> {<br /> byte[] buffer1;<br /> if (Length >= 1)<br /> {<br /> buffer1 = new byte[Length];<br /> }<br /> else<br /> {<br /> buffer1 = new byte[1];<br /> }<br /> RNGCryptoServiceProvider provider1 = new RNGCryptoServiceProvider();<br /> provider1.GetBytes(buffer1);<br /> return buffer1;<br /> }</p> <p> public string Decript(string str)<br /> {<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> string text1 = this._maskCriptor.Decrypt(str);<br /> if (text1.Length > 3)<br /> {<br /> int num1;<br /> string text2 = text1.Substring(0, 3);<br /> string text3 = text1.Substring(3, text1.Length – 3);<br /> string text4 = text3;<br /> if (int.TryParse(text2, out num1))<br /> {<br /> string text5 = this._keyManager.GetKey(num1);<br /> cryptography1.Key = text5;<br /> return cryptography1.Decrypt(text3);<br /> }<br /> }<br /> return text1;<br /> }</p> <p> public string DecriptStatic(string str)<br /> {<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> cryptography1.Key = “Web%HMKMJgfccg$%%^^&kkksl12312%&”;<br /> return cryptography1.Decrypt(str);<br /> }</p> <p> public string DecriptStatic(string str, string seed)<br /> {<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> cryptography1.Key = seed;<br /> cryptography1.Salt = seed;<br /> return cryptography1.Decrypt(str);<br /> }</p> <p> public string Encript(string str)<br /> {<br /> string text3;<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> Random random1 = new Random();<br /> int num1 = random1.Next(0, 0x80);<br /> string text1 = this._keyManager.GetKey(num1);<br /> cryptography1.Key = text1;<br /> string text2 = cryptography1.Encrypt(str);<br /> if (num1 < 10)<br /> {<br /> text3 = “00” + num1.ToString();<br /> }<br /> else if (num1 < 100)<br /> {<br /> text3 = “0” + num1.ToString();<br /> }<br /> else<br /> {<br /> text3 = num1.ToString();<br /> }<br /> string text4 = text3.Substring(0, 3) + text2;<br /> return this._maskCriptor.Encrypt(text4);<br /> }</p> <p> public string EncriptStatic(string str)<br /> {<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> cryptography1.Key = “Web%HMKMJgfccg$%%^^&kkksl12312%&”;<br /> return cryptography1.Encrypt(str);<br /> }</p> <p> public string EncriptStatic(string str, out string seed)<br /> {<br /> Random random1 = new Random();<br /> int num1 = random1.Next(0x186a0, 0xf423f);<br /> string text1 = num1.ToString();<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> cryptography1.Key = text1;<br /> seed = text1;<br /> return cryptography1.Encrypt(str);<br /> }</p> <p> public string EncriptStatic(string str, string seed)<br /> {<br /> SymCryptography cryptography1 = new SymCryptography(“TripleDES”);<br /> cryptography1.Key = seed;<br /> cryptography1.Salt = seed;<br /> return cryptography1.Encrypt(str);<br /> }</p> <p> }<br /> internal class Hash<br /> {<br /> // Methods<br /> public Hash()<br /> {<br /> this.mCryptoService = new SHA1Managed();<br /> }</p> <p> public Hash(Hash.ServiceProviderEnum serviceProvider)<br /> {<br /> switch (serviceProvider)<br /> {<br /> case Hash.ServiceProviderEnum.SHA1:<br /> {<br /> this.mCryptoService = new SHA1Managed();<br /> return;<br /> }<br /> case Hash.ServiceProviderEnum.SHA256:<br /> {<br /> this.mCryptoService = new SHA256Managed();<br /> return;<br /> }<br /> case Hash.ServiceProviderEnum.SHA384:<br /> {<br /> this.mCryptoService = new SHA384Managed();<br /> return;<br /> }<br /> case Hash.ServiceProviderEnum.SHA512:<br /> {<br /> this.mCryptoService = new SHA512Managed();<br /> return;<br /> }<br /> case Hash.ServiceProviderEnum.MD5:<br /> {<br /> this.mCryptoService = new MD5CryptoServiceProvider();<br /> return;<br /> }<br /> }<br /> }</p> <p> public Hash(string serviceProviderName)<br /> {<br /> try<br /> {<br /> this.mCryptoService = (HashAlgorithm)CryptoConfig.CreateFromName(serviceProviderName.ToUpper());<br /> }<br /> catch<br /> {<br /> throw;<br /> }<br /> }</p> <p> public virtual string Encrypt(string plainText)<br /> {<br /> byte[] buffer1 = this.mCryptoService.ComputeHash(Encoding.ASCII.GetBytes(plainText + this.mSalt));<br /> return Convert.ToBase64String(buffer1, 0, buffer1.Length);<br /> }</p> <p> // Properties<br /> public string Salt { get; set; }</p> <p> // Fields<br /> private HashAlgorithm mCryptoService;<br /> private string mSalt;</p> <p> // Nested Types<br /> public enum ServiceProviderEnum<br /> {<br /> SHA1,<br /> SHA256,<br /> SHA384,<br /> SHA512,<br /> MD5<br /> }<br /> }<br /> internal class KeyManager<br /> {<br /> // Methods<br /> public KeyManager()<br /> {<br /> this._keys = new List<string>();<br /> this.Initialize();<br /> }</p> <p> public string GetKey(int index)<br /> {<br /> string text1 = “Webj~yriu!@*k0_^fa7431%p$#=@hd+&”;<br /> if ((index >= 0) && (this._keys.Count > index))<br /> {<br /> text1 = this._keys[index];<br /> }<br /> return text1;<br /> }</p> <p> private void Initialize()<br /> {<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k$%^&*&*^%%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7RTYUp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%KJHGFDFH&”);<br /> this._keys.Add(“Webj~yr#$%FGH0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k%^&JH7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa^%$#GJK#=@hd+&”);<br /> this._keys.Add(“Webj~!@#$DFGH0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*kJGFERT&31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa74HGDFGCVBhd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#=@&^%$”);<br /> this._keys.Add(“Webj~yriu!^%$FGHfa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^*^%$DFGH$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%pKJHTYd+&”);<br /> this._keys.Add(“Webj~yriu4567jhgfa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^ohkhkguyt#=@hd+&”);<br /> this._keys.Add(“Webj~yriu478uygufa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^f$FFDG%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^2345fds#$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu234fghqweq121%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k123124431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yr2312234_^f34232%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0weqwecsd%p$#=@hd+&”);<br /> this._keys.Add(“Webj~2312reyrtyrtygfd2312#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k534rsf431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y34343gk0_^fa743534$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_3443341%p$#=@hd+&”);<br /> this._keys.Add(“Webj~345345340_^fa743134534534+&”);<br /> this._keys.Add(“Webj~yriu!@*34534534534p$#=@hd+&”);<br /> this._keys.Add(“Webj~45345343434327431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0#$%^%#%$#%$#=@hd+&”);<br /> this._keys.Add(“Webj~yr234234234237431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa342342342332+&”);<br /> this._keys.Add(“Webj%TYTR$Y46yf4^%7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu3242343fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yri4234k0_34232234p$#=@hd+&”);<br /> this._keys.Add(“Webj~y^%$^^guyu^%^^&31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu^%$&^YTYTU431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!234234237431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriuferertert7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y3423423423fdsfsdfp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@34nvnnvn431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yri343453453dddddddddd@hd+&”);<br /> this._keys.Add(“Webj~yriu3434dfefer431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y4534534534fernvtrgf#=@hd+&”);<br /> this._keys.Add(“Webj~yri3453434erterf1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yri34534ererter31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa45343p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*345343453453453@hd+&”);<br /> this._keys.Add(“Web3434534eertergdfgdf%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yr34534k0_^f34534345343hd+&”);<br /> this._keys.Add(“Webj~3453434ererterterter#=@hd+&”);<br /> this._keys.Add(“Webj~yriu34534343rertere$#=@hd+&”);<br /> this._keys.Add(“Webj~yr3453453ererccchch$#=@hd+&”);<br /> this._keys.Add(“Webj~yri3453453erterterter=@hd+&”);<br /> this._keys.Add(“Webj~yriu34534534erterter#=@hd+&”);<br /> this._keys.Add(“Webj~yri3534534ertertfgh$#=@hd+&”);<br /> this._keys.Add(“Webj~yri3453453453453453343@hd+&”);<br /> this._keys.Add(“Webj~yr3453434345345eertertehd+&”);<br /> this._keys.Add(“Webj~yeterteghfghcghcghp$#=@hd+&”);<br /> this._keys.Add(“Webj~yri3`12312234235343$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu2347567898791%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa98898p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@98689864431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7itui56#=@hd+&”);<br /> this._keys.Add(“Webj~yr8985uyitkkg7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~857itedt0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~78778i78iyuigk86uuj$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu6juuyjyjgyu678657=@hd+&”);<br /> this._keys.Add(“Webj~uyutyjyyuty678678%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yr4875675uyjuuyu1%p$#=@hd+&”);<br /> this._keys.Add(“Web8567856iuyyujyuytyuup$#=@hd+&”);<br /> this._keys.Add(“Webj~y6785678567uyityjtyuym@hd+&”);<br /> this._keys.Add(“Webj57856785678jwq7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^456345635#=@hd+&”);<br /> this._keys.Add(“Webj~wrtwrtwk0_^fa7431%prtwrhd+&”);<br /> this._keys.Add(“Webj~yriu!@*56363565ertyert@hd+&”);<br /> this._keys.Add(“Webj~y3563546trrrev431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y54634563563rr3sdfp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!563456345431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*krtwertwrtwp$#=@hd+&”);<br /> this._keys.Add(“Webj~y456563456^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^435345643#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@rtwreyetyt1%p$54@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0yetye431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fartyetyereyed+&”);<br /> this._keys.Add(“Webj~yriu345rtr5fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_yeyertyer$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0356345635p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriureyrt_^fa7yetyety=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k043634561%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa74yetryet@hd+&”);<br /> this._keys.Add(“Webj~yriu!ertyerty7431%p$#ryety&”);<br /> this._keys.Add(“Webj~y45643654365456345p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_etye431%yetyehd+&”);<br /> this._keys.Add(“Webj~yriu!@*k63arqqrw1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@wertwrrdfsd%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k56yuouyio%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_mvvvvutuyuy=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*ryuryury31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fafhjfjfgh=@hd+&”);<br /> this._keys.Add(“Webj~yyuryurtyurtyuhfjngfh=@hd+&”);<br /> this._keys.Add(“Web34534534ffffffa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_ewrwerwep$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431werwerhd+&”);<br /> this._keys.Add(“Webj~yriu!@ccrwerw7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*kcsadce3ennh$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431ntfvfcdd+&”);<br /> this._keys.Add(“Webj~yrceddc2dc^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_dc2edc2dp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431dc2edc2d+&”);<br /> this._keys.Add(“Webj~yriu!c2dcedergtr1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa74ferrff=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#fewd+&”);<br /> this._keys.Add(“Webj~yricddw322235tg31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa74frg3rtg3rd+&”);<br /> this._keys.Add(“Webj~yrf2refewfwefwef1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~4rcdwfcw0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*kdcewfdewrfew#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!rwertwer7431%pgrgwgr+&”);<br /> this._keys.Add(“Webj~yriu!@*k545346431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa743gergerggd+&”);<br /> this._keys.Add(“Webj454534ggdfvvfdsf31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7452gfrewfvs+&”);<br /> this._keys.Add(“Webj~yriu!@fwfsdcds431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yrwregwergwga7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fwergwergw=@hd+&”);<br /> this._keys.Add(“Webj~yrgwergwr_^fa7431%p$ewrger&”);<br /> this._keys.Add(“Webj~yriu!@*k454ga7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^ft25t425t2=@hd+&”);<br /> this._keys.Add(“Webj~yrf2rffgeggfa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y5g43gggbbeer7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa4345g43g=@hd+&”);<br /> this._keys.Add(“Webj~ygr43rgrgfgrtn431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y35tgtegertgergertgt#=@hd+&”);<br /> this._keys.Add(“Webj~yriurgergrnnythyt%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y54343g34g^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k123412331%p$#=@hd+&”);<br /> this._keys.Add(“Webj~123431240_^f312412p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_123e43124312@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^faed31d12#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*kdsafd1edd%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yri14123dewasdasddqweded1d&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431dfasdfsad&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%2d2d@hd+&”);<br /> this._keys.Add(“Webj~yriwd@*k0_^f1d213d2$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!dwqd2d3a7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yreqwdqd0_^d2desqddasd@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!23dd22127431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fadsa1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yri23@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_sadasdasas#=@hd+&”);<br /> this._keys.Add(“Webj~yrdu!@*k0_^fa7431%adsdad2+&”);<br /> this._keys.Add(“Webj~yrisd@*k0_tyu743132d#=@hd3&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa7433%p$#=23d+&”);<br /> this._keys.Add(“Webj~yriu!ask0_^fnhnh1%p$23@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*asdasd7431%pd#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa743hnp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^fa74dtgbtnhnhd+&”);<br /> this._keys.Add(“Webj~yrthbbgrbtgbtrbt1%p$#=@rd+&”);<br /> this._keys.Add(“Web4bgriu!@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~y4g4gb*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@gt4bgba7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^f4tgb1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~gbiu!@*k0_^fa743gbgb#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!g4b0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yrgb!@*k0_^fa7431%p$4g4gd+&”);<br /> this._keys.Add(“Webj~yriugb*kgbgba7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@4k0_^fg7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*gb_^fab4t1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0gtfa743gbp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^ba7431%gb#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^f4gtb1%p$tg4hd+&”);<br /> this._keys.Add(“Webj~yrig4rgrg_^fa743tg4$#=@b4tg”);<br /> this._keys.Add(“Webj~yriu!@*k0f^fa7431%pb4tghd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_ffa7431%p$#=@hd+&”);<br /> this._keys.Add(“Web44yriu!@*k0_^ga7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~g4gu!@*k0_^fdsf31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yrirg@*k0_^fa74dfsp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!fg30_^fa7431%fgdfshd+&”);<br /> this._keys.Add(“Webj~yriu!@*krfg3a7431%p$#=@dd+&”);<br /> this._keys.Add(“Webj~yfiu!@*rg_^frgf31%p$#=@hsf&”);<br /> this._keys.Add(“Webj~yriu!@*k0r^fa743rfefgfdgd+&”);<br /> this._keys.Add(“Webj~yrdfg@*k0_^fa7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!sdff_efg7431%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*kggsfafg31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0_^df74e1%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yrifg@*k0_^fadsffgp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!s*k0_^fa743gdsf#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@dfg_^fa7431%p$g=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@dk0sdfa7431%p$#dsfd+&”);<br /> this._keys.Add(“Webj~yrgu!@*wf_^gsdf31%p$#=@hfds”);<br /> this._keys.Add(“Webjfgrirewgk0wfda74df%p$#=@hd+&”);<br /> this._keys.Add(“Webj~ysdu!@*k0_^fw7431sg$#=@hd+&”);<br /> this._keys.Add(“Webj~yrifg@*fg_^fadf31%p$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!sdfgwfga74dfrp$#=@hd+&”);<br /> this._keys.Add(“Webj~yriu!@*k0sdfwf431%2$#=@hd+&”);<br /> }</p> <p> // Properties<br /> public List<string> Keys<br /> {<br /> get<br /> {<br /> return this._keys;<br /> }<br /> }</p> <p> // Fields<br /> private List<string> _keys;</p> <p> }<br /> internal class SymCryptography<br /> {<br /> // Methods<br /> public SymCryptography()<br /> {<br /> this.mKey = string.Empty;<br /> this.mSalt = string.Empty;<br /> this.mCryptoService = new RijndaelManaged();<br /> this.mCryptoService.Mode = CipherMode.CBC;<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.Rijndael;<br /> }</p> <p> public SymCryptography(SymCryptography.ServiceProviderEnum serviceProvider)<br /> {<br /> this.mKey = string.Empty;<br /> this.mSalt = string.Empty;<br /> switch (serviceProvider)<br /> {<br /> case SymCryptography.ServiceProviderEnum.Rijndael:<br /> {<br /> this.mCryptoService = new RijndaelManaged();<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.Rijndael;<br /> break;<br /> }<br /> case SymCryptography.ServiceProviderEnum.RC2:<br /> {<br /> this.mCryptoService = new RC2CryptoServiceProvider();<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.RC2;<br /> break;<br /> }<br /> case SymCryptography.ServiceProviderEnum.DES:<br /> {<br /> this.mCryptoService = new DESCryptoServiceProvider();<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.DES;<br /> break;<br /> }<br /> case SymCryptography.ServiceProviderEnum.TripleDES:<br /> {<br /> this.mCryptoService = new TripleDESCryptoServiceProvider();<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.TripleDES;<br /> break;<br /> }<br /> }<br /> this.mCryptoService.Mode = CipherMode.CBC;<br /> }</p> <p> public SymCryptography(string serviceProviderName)<br /> {<br /> this.mKey = string.Empty;<br /> this.mSalt = string.Empty;<br /> try<br /> {<br /> string text1;<br /> if ((text1 = serviceProviderName.ToLower()) != null)<br /> {<br /> if (text1 != “rijndael”)<br /> {<br /> if (text1 == “rc2”)<br /> {<br /> goto Label_006C;<br /> }<br /> if (text1 == “des”)<br /> {<br /> goto Label_007C;<br /> }<br /> if (text1 == “tripledes”)<br /> {<br /> goto Label_008C;<br /> }<br /> }<br /> else<br /> {<br /> serviceProviderName = “Rijndael”;<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.Rijndael;<br /> }<br /> }<br /> goto Label_009A;<br /> Label_006C:<br /> serviceProviderName = “RC2”;<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.RC2;<br /> goto Label_009A;<br /> Label_007C:<br /> serviceProviderName = “DES”;<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.DES;<br /> goto Label_009A;<br /> Label_008C:<br /> serviceProviderName = “TripleDES”;<br /> this.mAlgorithm = SymCryptography.ServiceProviderEnum.TripleDES;<br /> Label_009A:<br /> this.mCryptoService = (SymmetricAlgorithm)CryptoConfig.CreateFromName(serviceProviderName);<br /> this.mCryptoService.Mode = CipherMode.CBC;<br /> }<br /> catch<br /> {<br /> throw;<br /> }<br /> }</p> <p> public virtual string Decrypt(string cryptoText)<br /> {<br /> string text1;<br /> byte[] buffer1 = Convert.FromBase64String(cryptoText);<br /> byte[] buffer2 = this.GetLegalKey();<br /> this.mCryptoService.Key = buffer2;<br /> this.SetLegalIV();<br /> ICryptoTransform transform1 = this.mCryptoService.CreateDecryptor(buffer2, this.mCryptoService.IV);<br /> try<br /> {<br /> MemoryStream stream1 = new MemoryStream(buffer1, 0, buffer1.Length);<br /> CryptoStream stream2 = new CryptoStream(stream1, transform1, CryptoStreamMode.Read);<br /> StreamReader reader1 = new StreamReader(stream2);<br /> text1 = reader1.ReadToEnd();<br /> }<br /> catch<br /> {<br /> text1 = null;<br /> }<br /> return text1;<br /> }</p> <p> public virtual string Encrypt(string plainText)<br /> {<br /> byte[] buffer1 = Encoding.ASCII.GetBytes(plainText);<br /> byte[] buffer2 = this.GetLegalKey();<br /> this.mCryptoService.Key = buffer2;<br /> this.SetLegalIV();<br /> ICryptoTransform transform1 = this.mCryptoService.CreateEncryptor(buffer2, this.mCryptoService.IV);<br /> MemoryStream stream1 = new MemoryStream();<br /> CryptoStream stream2 = new CryptoStream(stream1, transform1, CryptoStreamMode.Write);<br /> stream2.Write(buffer1, 0, buffer1.Length);<br /> stream2.FlushFinalBlock();<br /> byte[] buffer3 = stream1.ToArray();<br /> return Convert.ToBase64String(buffer3, 0, buffer3.GetLength(0));<br /> }</p> <p> public virtual byte[] GetLegalKey()<br /> {<br /> if (this.mCryptoService.LegalKeySizes.Length > 0)<br /> {<br /> int num1 = this.mKey.Length * 8;<br /> int num2 = this.mCryptoService.LegalKeySizes[0].MinSize;<br /> int num3 = this.mCryptoService.LegalKeySizes[0].MaxSize;<br /> int num4 = this.mCryptoService.LegalKeySizes[0].SkipSize;<br /> if (num1 > num3)<br /> {<br /> this.mKey = this.mKey.Substring(0, num3 / 8);<br /> }<br /> else if (num1 < num3)<br /> {<br /> int num5 = (num1 <= num2) ? num2 : ((num1 – (num1 % num4)) + num4);<br /> if (num1 < num5)<br /> {<br /> this.mKey = this.mKey.PadRight(num5 / 8, ‘*’);<br /> }<br /> }<br /> }<br /> PasswordDeriveBytes bytes1 = new PasswordDeriveBytes(this.mKey, Encoding.ASCII.GetBytes(this.mSalt));<br /> return bytes1.GetBytes(this.mKey.Length);<br /> }</p> <p> private void SetLegalIV()<br /> {<br /> if (this.mAlgorithm == SymCryptography.ServiceProviderEnum.Rijndael)<br /> {<br /> this.mCryptoService.IV = new byte[] { 15, 0x6f, 0x13, 0x2e, 0x35, 0xc2, 0xcd, 0xf9, 5, 70, 0x9c, 0xea, 0xa8, 0x4b, 0x73, 0xcc };<br /> }<br /> else<br /> {<br /> this.mCryptoService.IV = new byte[] { };<br /> }<br /> }</p> <p> // Properties<br /> public string Key { get; set; }<br /> public string Salt { get; set; }</p> <p> // Fields<br /> private ServiceProviderEnum mAlgorithm;<br /> private SymmetricAlgorithm mCryptoService;<br /> private string mKey;<br /> private string mSalt;</p> <p> // Nested Types<br /> public enum ServiceProviderEnum<br /> {<br /> Rijndael,<br /> RC2,<br /> DES,<br /> TripleDES<br /> }<br /> }<br /> }<br />
