DES加密 解密

1

///2
///des加密(資料加密標準，速度較快，適用於加密大量資料的場合)
3///
4///
待加密的密文
5///
加密的金鑰
6///
returns
7public
static
string desencrypt(string encryptstring, string
encryptkey)813
14if (string.isnullorempty(encryptkey) || encryptkey.length != 8)15
18byte m_btiv = ;
19string m_strencrypt = ""
;20             descryptoserviceprovider m_desprovider = new
descryptoserviceprovider();
2122
try23
33catch (ioexception ex) 
34catch (cryptographicexception ex) 
35catch (argumentexception ex) 
36catch (exception ex) 
37finally
3839
return
m_strencrypt;
40         }

1

///2
///des 解密(資料加密標準，速度較快，適用於加密大量資料的場合)
3///
4///
待解密的密文
5///
解密的金鑰
6///
returns
7public
static
string desdecrypt(string decryptstring, string
decryptkey)813
14if (string.isnullorempty(decryptkey) || decryptkey.length != 8)15
1819
byte m_btiv = ;
20string m_strdecrypt = ""
;21             descryptoserviceprovider m_desprovider = new
descryptoserviceprovider();
2223
try24
3435
catch
(ioexception ex) 
36catch
(cryptographicexception ex) 
37catch
(argumentexception ex) 
38catch
(exception ex) 
39finally
4041
return
m_strdecrypt;
42         }

DES加密解密

using system using system.drawing using system.collections using system.componentmodel using system.windows.forms using system.data using system.io us...

DES加密解密

加密類 date 2012 04 23 pm.public class encrypt private encrypt 建立加密類物件.public static encrypt createcryptoserviceprovider des加密.待加密字串.加密金鑰.8位 public strin...

DES加密解密

using system.data using system.configuration using system.web using system.web.security using system.web.ui using system.web.ui.webcontrols using syst...