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using System.Web.Security; |
10 |
/// <param name="source">源字符串</param> |
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/// <returns>加密后的字符串</returns> |
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public string SHA1( string source) |
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return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "SHA1" ); |
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/// <param name="source">源字符串</param> |
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/// <returns>加密后的字符串</returns> |
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public string MD5( string source) |
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return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "MD5" );; |
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using System.Security.Cryptography; |
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public string Encode( string data) |
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byte [] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); |
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byte [] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); |
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DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); |
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int i = cryptoProvider.KeySize; |
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MemoryStream ms = new MemoryStream(); |
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CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write); |
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StreamWriter sw = new StreamWriter(cst); |
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cst.FlushFinalBlock(); |
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return Convert.ToBase64String(ms.GetBuffer(), 0, ( int )ms.Length); |
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public string Decode( string data) |
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byte [] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); |
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byte [] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); |
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byEnc = Convert.FromBase64String(data); |
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DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); |
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MemoryStream ms = new MemoryStream(byEnc); |
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CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read); |
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StreamReader sr = new StreamReader(cst); |
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return sr.ReadToEnd(); |
02 |
using System.Security.Cryptography; |
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public string GetMD5_32( string s, string _input_charset) |
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MD5 md5 = new MD5CryptoServiceProvider(); |
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byte [] t = md5.ComputeHash(Encoding.GetEncoding(_input_charset).GetBytes(s)); |
14 |
StringBuilder sb = new StringBuilder(32); |
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for ( int i = 0; i < t.Length; i++) |
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sb.Append(t[i].ToString( "x" ).PadLeft(2, '0' )); |
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public static string GetMd5_16( string ConvertString) |
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MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); |
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string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8); |
27 |
t2 = t2.Replace( "-" , "" ); |
03 |
using System.Security.Cryptography; |
07 |
private SymmetricAlgorithm mobjCryptoService; |
12 |
public SymmetricMethod() |
14 |
mobjCryptoService = new RijndaelManaged(); |
15 |
Key = "Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7" ; |
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/// <returns>密钥</returns> |
21 |
private byte [] GetLegalKey() |
24 |
mobjCryptoService.GenerateKey(); |
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byte [] bytTemp = mobjCryptoService.Key; |
26 |
int KeyLength = bytTemp.Length; |
27 |
if (sTemp.Length > KeyLength) |
28 |
sTemp = sTemp.Substring(0, KeyLength); |
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else if (sTemp.Length < KeyLength) |
30 |
sTemp = sTemp.PadRight(KeyLength, ' ' ); |
31 |
return ASCIIEncoding.ASCII.GetBytes(sTemp); |
36 |
/// <returns>初试向量IV</returns> |
37 |
private byte [] GetLegalIV() |
39 |
string sTemp = "E4ghj*Ghg7!rNIfb&95GUY86GfghUb#er57HBh(u%g6HJ($jhWk7&!hg4ui%$hjk" ; |
40 |
mobjCryptoService.GenerateIV(); |
41 |
byte [] bytTemp = mobjCryptoService.IV; |
42 |
int IVLength = bytTemp.Length; |
43 |
if (sTemp.Length > IVLength) |
44 |
sTemp = sTemp.Substring(0, IVLength); |
45 |
else if (sTemp.Length < IVLength) |
46 |
sTemp = sTemp.PadRight(IVLength, ' ' ); |
47 |
return ASCIIEncoding.ASCII.GetBytes(sTemp); |
52 |
/// <param name="Source">待加密的串</param> |
53 |
/// <returns>经过加密的串</returns> |
54 |
public string Encrypto( string Source) |
56 |
byte [] bytIn = UTF8Encoding.UTF8.GetBytes(Source); |
57 |
MemoryStream ms = new MemoryStream(); |
58 |
mobjCryptoService.Key = GetLegalKey(); |
59 |
mobjCryptoService.IV = GetLegalIV(); |
60 |
ICryptoTransform encrypto = mobjCryptoService.CreateEncryptor(); |
61 |
CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Write); |
62 |
cs.Write(bytIn, 0, bytIn.Length); |
65 |
byte [] bytOut = ms.ToArray(); |
66 |
return Convert.ToBase64String(bytOut); |
71 |
/// <param name="Source">待解密的串</param> |
72 |
/// <returns>经过解密的串</returns> |
73 |
public string Decrypto( string Source) |
75 |
byte [] bytIn = Convert.FromBase64String(Source); |
76 |
MemoryStream ms = new MemoryStream(bytIn, 0, bytIn.Length); |
77 |
mobjCryptoService.Key = GetLegalKey(); |
78 |
mobjCryptoService.IV = GetLegalIV(); |
79 |
ICryptoTransform encrypto = mobjCryptoService.CreateDecryptor(); |
80 |
CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Read); |
81 |
StreamReader sr = new StreamReader(cs); |
82 |
return sr.ReadToEnd(); |
03 |
using System.Security.Cryptography; |
09 |
private static byte [] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; |
13 |
/// <param name="encryptString">待加密的字符串</param> |
14 |
/// <param name="encryptKey">加密密钥,要求为8位</param> |
15 |
/// <returns>加密成功返回加密后的字符串,失败返回源串</returns> |
16 |
public static string EncryptDES( string encryptString, string encryptKey) |
20 |
byte [] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8)); |
22 |
byte [] inputByteArray = Encoding.UTF8.GetBytes(encryptString); |
23 |
DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider(); |
24 |
MemoryStream mStream = new MemoryStream(); |
25 |
CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write); |
26 |
cStream.Write(inputByteArray, 0, inputByteArray.Length); |
27 |
cStream.FlushFinalBlock(); |
28 |
return Convert.ToBase64String(mStream.ToArray()); |
39 |
/// <param name="decryptString">待解密的字符串</param> |
40 |
/// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param> |
41 |
/// <returns>解密成功返回解密后的字符串,失败返源串</returns> |
42 |
public static string DecryptDES( string decryptString, string decryptKey) |
46 |
byte [] rgbKey = Encoding.UTF8.GetBytes(decryptKey); |
48 |
byte [] inputByteArray = Convert.FromBase64String(decryptString); |
49 |
DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider(); |
50 |
MemoryStream mStream = new MemoryStream(); |
51 |
CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write); |
52 |
cStream.Write(inputByteArray, 0, inputByteArray.Length); |
53 |
cStream.FlushFinalBlock(); |
54 |
return Encoding.UTF8.GetString(mStream.ToArray()); |
03 |
using System.Security.Cryptography; |
09 |
private static void EncryptData(String inName, String outName, byte [] desKey, byte [] desIV) |
12 |
FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); |
13 |
FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); |
17 |
byte [] bin = new byte [100]; |
19 |
long totlen = fin.Length; |
22 |
DES des = new DESCryptoServiceProvider(); |
23 |
CryptoStream encStream = new CryptoStream(fout, des.CreateEncryptor(desKey, desIV), CryptoStreamMode.Write); |
26 |
while (rdlen < totlen) |
28 |
len = fin.Read(bin, 0, 100); |
29 |
encStream.Write(bin, 0, len); |
39 |
private static void DecryptData(String inName, String outName, byte [] desKey, byte [] desIV) |
42 |
FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); |
43 |
FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); |
47 |
byte [] bin = new byte [100]; |
49 |
long totlen = fin.Length; |
52 |
DES des = new DESCryptoServiceProvider(); |
53 |
CryptoStream encStream = new CryptoStream(fout, des.CreateDecryptor(desKey, desIV), CryptoStreamMode.Write); |
56 |
while (rdlen < totlen) |
58 |
len = fin.Read(bin, 0, 100); |
59 |
encStream.Write(bin, 0, len); |
02 |
using System.Security.Cryptography; |
08 |
/// <param name="strPlain">明文</param> |
09 |
/// <param name="strDESKey">密钥</param> |
10 |
/// <param name="strDESIV">向量</param> |
11 |
/// <returns>密文</returns> |
12 |
public string DESEncrypt( string strPlain, string strDESKey, string strDESIV) |
15 |
byte [] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); |
17 |
byte [] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); |
19 |
DESCryptoServiceProvider desEncrypt= new DESCryptoServiceProvider(); |
21 |
MemoryStream msEncrypt= new MemoryStream(); |
23 |
CryptoStream csEncrypt= new CryptoStream(msEncrypt,desEncrypt.CreateEncryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Write); |
25 |
StreamWriter swEncrypt= new StreamWriter(csEncrypt); |
27 |
swEncrypt.WriteLine(strPlain); |
33 |
byte [] bytesCipher=msEncrypt.ToArray(); |
37 |
return UnicodeEncoding.Unicode.GetString(bytesCipher); |
46 |
/// <param name="strCipher">密文</param> |
47 |
/// <param name="strDESKey">密钥</param> |
48 |
/// <param name="strDESIV">向量</param> |
49 |
/// <returns>明文</returns> |
50 |
public string DESDecrypt( string strCipher, string strDESKey, string strDESIV) |
53 |
byte [] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); |
55 |
byte [] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); |
57 |
byte [] bytesCipher=UnicodeEncoding.Unicode.GetBytes(strCipher); |
59 |
DESCryptoServiceProvider desDecrypt= new DESCryptoServiceProvider(); |
61 |
MemoryStream msDecrypt= new MemoryStream(bytesCipher); |
63 |
CryptoStream csDecrypt= new CryptoStream(msDecrypt,desDecrypt.CreateDecryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Read); |
65 |
StreamReader srDecrypt= new StreamReader(csDecrypt); |
67 |
string strPlainText=srDecrypt.ReadLine(); |
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