WinForm下,关于数据库连接的问题.

yaoyaomaomao 2007-09-06 02:06:46

数据库连接我一般有两种方法:
1是将连接字符串写在类里,编译成dll
2是写在ini文件里面.
1方法编译出的dll会被反编译,所以我想给ini文件加密,不知道怎么写.

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he11o 2007-09-09

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连接串当然要加密,上面有sqlserver的帐号和密码

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权限是可以设置的啊

gui0605 2007-09-06

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加密即可，不建议写在类里，这个应该是可配置的

songcan 2007-09-06

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DES,AES,RSA都可以，不能用MD5 ，SHAR1

music912 2007-09-06

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我现在也用了读写ini的方式，所以也将这些服务器的敏感信息加密了～如下：

server=FSJhAax5GIw3mCIM8j/4WA==
database=EtL1+pb9Mek=
uid=Q/UYZ/sDG20=
pwd=3LMdZ9Z1tMU=

music912 2007-09-06

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可以用SEDO加密：
public class DESCode
{
private static byte[] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
/// <summary>
/// DES加密字符串
/// </summary>
/// <param name="encryptString">待加密的字符串</param>
/// <param name="encryptKey">加密密钥,要求为8位</param>
/// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
public static string EncryptDES(string encryptString, string encryptKey)
{
try
{
byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
byte[] rgbIV = Keys;
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Convert.ToBase64String(mStream.ToArray());
}
catch
{
return encryptString;
}
}
/// <summary>
/// DES解密字符串
/// </summary>
/// <param name="decryptString">待解密的字符串</param>
/// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param>
/// <returns>解密成功返回解密后的字符串，失败返源串</returns>
public static string DecryptDES(string decryptString, string decryptKey)
{
try
{
byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey);
byte[] rgbIV = Keys;
byte[] inputByteArray = Convert.FromBase64String(decryptString);
DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Encoding.UTF8.GetString(mStream.ToArray());
}
catch
{
return decryptString;
}
}
}

调用方法：

解密：DESCode.DecryptDES("待解密的字符串","加密密钥");//"加密密钥"由你自己定义
加密：DESCode.EncryptDES(("待加密的字符串","加密密钥")

yaoyaomaomao 2007-09-06