[原创]SiteServer 3.2 关键代码

用于许可证加密和解密的部分代码。

 

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace BaiRong.Core.Cryptography
{

    public class DESEncryptor
    {

        private string decryptKey;
        private string encryptKey;
        private string inputFilePath;
        private string inputString;
        private string noteMessage;
        private string outFilePath;
        private string outString;

        public string DecryptKey
        {
            get
            {
                return decryptKey;
            }
            set
            {
                decryptKey = value;
            }
        }

        public string EncryptKey
        {
            get
            {
                return encryptKey;
            }
            set
            {
                encryptKey = value;
            }
        }

        public string InputFilePath
        {
            get
            {
                return inputFilePath;
            }
            set
            {
                inputFilePath = value;
            }
        }

        public string InputString
        {
            get
            {
                return inputString;
            }
            set
            {
                inputString = value;
            }
        }

        public string NoteMessage
        {
            get
            {
                return noteMessage;
            }
            set
            {
                noteMessage = value;
            }
        }

        public string OutFilePath
        {
            get
            {
                return outFilePath;
            }
            set
            {
                outFilePath = value;
            }
        }

        public string OutString
        {
            get
            {
                return outString;
            }
            set
            {
                outString = value;
            }
        }

        public DESEncryptor()
        {
            inputString = null;
            outString = null;
            inputFilePath = null;
            outFilePath = null;
            encryptKey = null;
            decryptKey = null;
            noteMessage = null;
        }

        public void DesDecrypt()
        {
            byte[] bArr1 = null;
            byte[] bArr2 = new byte[] { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
            byte[] bArr3 = new [inputString.Length];
            try
            {
                bArr1 = System.Text.Encoding.UTF8.GetBytes(decryptKey.Substring(0, 8));
                System.Security.Cryptography.DESCryptoServiceProvider descryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
                bArr3 = System.Convert.FromBase64String(inputString);
                System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
                System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, descryptoServiceProvider.CreateDecryptor(bArr1, bArr2), System.Security.Cryptography.CryptoStreamMode.Write);
                cryptoStream.Write(bArr3, 0, bArr3.Length);
                cryptoStream.FlushFinalBlock();
                System.Text.Encoding encoding = new System.Text.UTF8Encoding();
                outString = encoding.GetString(memoryStream.ToArray());
            }
            catch (System.Exception e)
            {
                noteMessage = e.Message;
            }
        }

        public void DesEncrypt()
        {
            byte[] bArr1 = null;
            byte[] bArr2 = new byte[] { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
            try
            {
                bArr1 = System.Text.Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
                System.Security.Cryptography.DESCryptoServiceProvider descryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
                byte[] bArr3 = System.Text.Encoding.UTF8.GetBytes(inputString);
                System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
                System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, descryptoServiceProvider.CreateEncryptor(bArr1, bArr2), System.Security.Cryptography.CryptoStreamMode.Write);
                cryptoStream.Write(bArr3, 0, bArr3.Length);
                cryptoStream.FlushFinalBlock();
                outString = System.Convert.ToBase64String(memoryStream.ToArray());
            }
            catch (System.Exception e)
            {
                noteMessage = e.Message;
            }
        }

        public void FileDesDecrypt()
        {
            byte[] bArr1 = null;
            byte[] bArr2 = new byte[] { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
            try
            {
                bArr1 = System.Text.Encoding.UTF8.GetBytes(decryptKey.Substring(0, 8));
                System.IO.FileStream fileStream1 = new System.IO.FileStream(inputFilePath, System.IO.FileMode.Open, System.IO.FileAccess.Read);
                System.IO.FileStream fileStream2 = new System.IO.FileStream(outFilePath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
                fileStream2.SetLength((long)0);
                byte[] bArr3 = new [0x64];
                long l1 = (long)0;
                long l2 = fileStream1.Length;
                System.Security.Cryptography.DES des = new System.Security.Cryptography.DESCryptoServiceProvider();
                System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(fileStream2, des.CreateDecryptor(bArr1, bArr2), System.Security.Cryptography.CryptoStreamMode.Write);
                while (l1 < l2)
                {
                    int i = fileStream1.Read(bArr3, 0, 0x64);
                    cryptoStream.Write(bArr3, 0, i);
                    l1 += (long)i;
                }
                cryptoStream.Close();
                fileStream2.Close();
                fileStream1.Close();
            }
            catch (System.Exception e)
            {
                noteMessage = e.Message.ToString();
            }
        }

        public void FileDesEncrypt()
        {
            byte[] bArr1 = null;
            byte[] bArr2 = new byte[] { 0x12, 0x44, 0x16, 0xEE, 0x88, 0x15, 0xDD, 0x41 };
            try
            {
                bArr1 = System.Text.Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
                System.IO.FileStream fileStream1 = new System.IO.FileStream(inputFilePath, System.IO.FileMode.Open, System.IO.FileAccess.Read);
                System.IO.FileStream fileStream2 = new System.IO.FileStream(outFilePath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
                fileStream2.SetLength((long)0);
                byte[] bArr3 = new [0x64];
                long l1 = (long)0;
                long l2 = fileStream1.Length;
                System.Security.Cryptography.DES des = new System.Security.Cryptography.DESCryptoServiceProvider();
                System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(fileStream2, des.CreateEncryptor(bArr1, bArr2), System.Security.Cryptography.CryptoStreamMode.Write);
                while (l1 < l2)
                {
                    int i = fileStream1.Read(bArr3, 0, 0x64);
                    cryptoStream.Write(bArr3, 0, i);
                    l1 += (long)i;
                }
                cryptoStream.Close();
                fileStream2.Close();
                fileStream1.Close();
            }
            catch (System.Exception e)
            {
                noteMessage = e.Message.ToString();
            }
        }

        public void MD5Encrypt()
        {
            System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
            byte[] bArr = md5.ComputeHash(System.Text.Encoding.Default.GetBytes(inputString));
            outString = System.Text.Encoding.Default.GetString(bArr);
        }

    } // class DESEncryptor

}

 

调用部分代码

 

private static XmlDocument a(string A_0)
{
    XmlDocument document = new XmlDocument();
    try
    {
        DESEncryptor encryptor = new DESEncryptor();
        encryptor.set_InputString(FileUtils.ReadBase64StringFromFile(A_0));
        encryptor.set_DecryptKey("kesgf4zb");
        encryptor.DesDecrypt();
        string xml = encryptor.get_OutString().Substring(encryptor.get_OutString().IndexOf("\r\n") + 2);
        document.LoadXml(xml);
    }
    catch
    {
    }
    return document;
}