使用说明.txt

加密解密组建支持RC4

把dll放在你应用程序目录或者系统目录中。


1、c#中解密RC4加密文件调用方法

//RC4文件解密
//rsfile：源文件路径，outfile：解密文件路径，pwd：密码

[DllImport("DMSecurity")]
public static extern bool DecryptRC4File(string rsfile,string outfile,string pwd);

//RC4文件加密
//rsfile：源文件路径，outfile：加密文件路径，pwd：密码

[DllImport("DMSecurity")]
public static extern bool EncryptRC4File(string rsfile,string outfile,string pwd);

2、VB下调用

'RC4文件加密
'rsfile：源文件路径，outfile：加密文件路径，pwd：密码
Private Declare Function EncryptRC4File Lib "DMSecurity" (ByVal rsfile As String, ByVal outfile As String, ByVal pwd As String) As Boolean
'RC4文件解密
'rsfile：源文件路径，outfile：解密文件路径，pwd：密码
Private Declare Function DecryptRC4File Lib "DMSecurity" (ByVal rsfile As String, ByVal outfile As String, ByVal pwd As String) As Boolean

'MD5加密，加密后字母是小写，转换成大写保存，.Net中的MD5加密都是大写的
'str:需要加密的字符串
Private Declare Function MD5String Lib "DMSecurity" (ByVal str as String) as String