558 lines
22 KiB
C#
558 lines
22 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Security.Cryptography;
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using System.IO;
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namespace NewPosInstaller
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{
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public class UserAES
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{
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/// <summary>
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/// 암호화 키 고정값("0001000100010001")
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/// </summary>
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private static string STATIC_KEY = "0001000100010001";
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#region 가변키 암호화/복호화
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/// <summary>
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/// 가변키 암호화
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/// </summary>
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/// <param name="pPosNo"></param>
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/// <param name="pSysYmdhms"></param>
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/// <param name="pPlainText"></param>
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/// <returns></returns>
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public static string DynamicKeyEncrypt(string pPosNo, string pSysYmdhms, string pPlainText)
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{
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string sEncryptText = string.Empty;
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try
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{
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if (pPlainText == "") return "";
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string sKey = string.Empty;
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string sPosNo = pPosNo;
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string sSysYmdhms = pSysYmdhms;
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sKey = sPosNo + sSysYmdhms;
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if (sKey.Length != 16)
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{
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sEncryptText = pPlainText;
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", "가변키 오류=>" + sKey);
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}
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byte[] byteKey = Encoding.UTF8.GetBytes(sKey);
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byte[] bytePlainText = Encoding.UTF8.GetBytes(pPlainText);
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byte[] tmpKey = new byte[byteKey.Length];
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Array.Copy(byteKey, tmpKey, byteKey.Length);
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for (int i = 0; i < bytePlainText.Length; i++)
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{
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if (bytePlainText[i] == '\x00')
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bytePlainText[i] = (byte)'\x20';
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}
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byte[] tmp = new byte[80 * 1024];
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Array.Copy(bytePlainText, tmp, bytePlainText.Length);
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byte[] byteEncrypt = new byte[80 * 1024];
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int iRet = EncryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteEncrypt);
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if (iRet > 0)
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{
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sEncryptText = Encoding.UTF8.GetString(byteEncrypt, 0, iRet);
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}
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else
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{
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sEncryptText = pPlainText;
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//ComLog.WriteAMSLog("APL", "ERR", "0000", "가변키 암호화 실패");
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", "가변키 암호화 실패=>" + pPlainText);
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}
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}
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catch (Exception ex)
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{
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", ex.Message);
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}
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return sEncryptText;
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}
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/// <summary>
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/// 가변키 암호화
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/// </summary>
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/// <param name="pPosNo">POS번호</param>
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/// <param name="pTranNo">Tran번호</param>
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/// <param name="pPlainText">평문</param>
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/// <returns>암호화 실패하면 평문을 리턴</returns>
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public static byte[] DynamicKeyEncrypt(string pPosNo, string pSysYmdhms, byte[] pPlainText)
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{
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byte[] byteEncryptText = null;
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//int encLen = 0;
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try
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{
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string sKey = string.Empty;
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string sPosNo = pPosNo;
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string sSysYmdhms = pSysYmdhms;
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sKey = pPosNo + pSysYmdhms;
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if (sKey.Length != 16)
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{
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byteEncryptText = pPlainText;
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//ComLog.WriteAMSLog("APL", "ERR", "0000", "가변키 오류");
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", "가변키 오류=>" + sKey);
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}
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byte[] bytePlainText = pPlainText;
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byte[] byteKey = Encoding.UTF8.GetBytes(sKey);
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byte[] tmpKey = new byte[byteKey.Length];
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Array.Copy(byteKey, tmpKey, byteKey.Length);
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for (int i = 0; i < bytePlainText.Length; i++)
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{
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if (bytePlainText[i] == '\x00')
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bytePlainText[i] = (byte)'\x20';
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}
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byte[] tmp = new byte[80 * 1024];
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Array.Copy(bytePlainText, tmp, bytePlainText.Length);
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byte[] byteEncrypt = new byte[80 * 1024];
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int iRet = EncryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteEncrypt);
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if (iRet > 0)
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{
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byteEncryptText = new byte[iRet];
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Array.Copy(byteEncrypt, byteEncryptText, iRet);
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}
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else
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{
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byteEncryptText = pPlainText;
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//ComLog.WriteAMSLog("APL", "ERR", "0000", "가변키 암호화 실패");
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", "가변키 암호화 실패=>" + Encoding.Default.GetString(pPlainText, 0, pPlainText.Length));
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}
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}
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catch (Exception ex)
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{
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyEncrypt()", ex.Message);
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}
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return byteEncryptText;
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}
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/// <summary>
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/// 가변키 복호화
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/// </summary>
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/// <param name="pPosNo"></param>
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/// <param name="pSysYmdhms"></param>
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/// <param name="pEncryptText"></param>
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/// <returns></returns>
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public static string DynamicKeyDecrypt(string pPosNo, string pSysYmdhms, string pEncryptText)
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{
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string sDecryptData = string.Empty;
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try
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{
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if (pEncryptText == "") return "";
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string sKey = string.Empty;
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string sPosNo = pPosNo;
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string sSysYmdhms = pSysYmdhms;
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sKey = sPosNo + sSysYmdhms;
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if (sKey.Length != 16)
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{
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sDecryptData = pEncryptText;
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", "가변키 오류=>" + sKey);
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}
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byte[] byteKey = Encoding.UTF8.GetBytes(sKey);
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byte[] byteEncryptText = Encoding.UTF8.GetBytes(pEncryptText);
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byte[] tmpKey = new byte[byteKey.Length];
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Array.Copy(byteKey, tmpKey, byteKey.Length);
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for (int i = 0; i < byteEncryptText.Length; i++)
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{
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if (byteEncryptText[i] == '\x00')
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byteEncryptText[i] = (byte)'\x20';
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}
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byte[] tmp = new byte[80 * 1024];
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Array.Copy(byteEncryptText, tmp, byteEncryptText.Length);
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byte[] byteTmpPlainText = new byte[80 * 1024];
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int iRet = DecryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteTmpPlainText);
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if (iRet > 0)
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{
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byte[] bytePlainText = new byte[iRet];
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Array.Copy(byteTmpPlainText, bytePlainText, iRet);
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sDecryptData = Encoding.UTF8.GetString(bytePlainText, 0, bytePlainText.Length);
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}
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else
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{
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sDecryptData = pEncryptText;
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", "가변키 복호화 실패=>" + pEncryptText);
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}
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}
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catch (Exception ex)
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{
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", ex.Message);
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}
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return sDecryptData;
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}
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/// <summary>
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/// 가변키 복호화
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/// </summary>
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/// <param name="pPosNo">POS번호</param>
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/// <param name="pTranNo">Tran번호</param>
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/// <param name="pEncryptText">암호문</param>
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/// <returns>복호화 실패하면 암호문 리턴</returns>
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public static byte[] DynamicKeyDecrypt(string pPosNo, string pSysYmdhms, byte[] pEncryptText)
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{
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byte[] byteDecryptData = null;
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try
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{
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string sKey = string.Empty;
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string sPosNo = pPosNo;
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string sSysYmdhms = pSysYmdhms;
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sKey = sPosNo + sSysYmdhms;
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if (sKey.Length != 16)
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{
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byteDecryptData = pEncryptText;
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//ComLog.WriteAMSLog("APL", "ERR", "0000", "가변키 오류");
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", "가변키 오류=>" + sKey);
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}
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byte[] byteKey = Encoding.UTF8.GetBytes(sKey);
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byte[] byteTmpEncrypt = pEncryptText;
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byte[] tmpKey = new byte[byteKey.Length];
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Array.Copy(byteKey, tmpKey, byteKey.Length);
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for (int i = 0; i < byteTmpEncrypt.Length; i++)
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{
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if (byteTmpEncrypt[i] == '\x00')
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byteTmpEncrypt[i] = (byte)'\x20';
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}
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byte[] tmp = new byte[80 * 1024];
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Array.Copy(byteTmpEncrypt, tmp, byteTmpEncrypt.Length);
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byte[] byteTmpPlainText = new byte[80 * 1024];
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int iRet = DecryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteTmpPlainText);
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if (iRet > 0)
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{
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byte[] bytePlainText = new byte[iRet];
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Array.Copy(byteTmpPlainText, bytePlainText, iRet);
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byteDecryptData = bytePlainText;
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}
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else
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{
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byteDecryptData = pEncryptText;
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//ComLog.WriteAMSLog("APL", "ERR", "0000", "가변키 복호화 오류");
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", "가변키 복호화 오류=>" + Encoding.Default.GetString(pEncryptText, 0, pEncryptText.Length));
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}
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}
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catch (Exception ex)
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{
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ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
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"UserAES.DynamicKeyDecrypt()", ex.Message);
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}
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return byteDecryptData;
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}
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#endregion
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#region 고정키 암호화/복호화, 고정키 : 0001000100010001
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/// <summary>
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/// 고정키 암호화
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/// </summary>
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/// <param name="pPlainText">평문</param>
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/// <returns>암호화 실패하면 평문 리턴</returns>
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public static string StaticKeyEncrypt(string pPlainText)
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{
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string sEncryptText = string.Empty;
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try
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{
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if (pPlainText == "") return "";
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byte[] bytePlainText = Encoding.Default.GetBytes(pPlainText);
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byte[] byteKey = Encoding.Default.GetBytes(UserAES.STATIC_KEY);
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byte[] tmpKey = new byte[byteKey.Length];
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Array.Copy(byteKey, tmpKey, byteKey.Length);
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byte[] tmp = new byte[80 * 1024];
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Array.Copy(bytePlainText, tmp, bytePlainText.Length);
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byte[] byteEncrypt = new byte[80 * 1024];
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int iRet = EncryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteEncrypt);
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//int iRet = EncryptByAESAndBase64Ex(tmpKey, tmpKey, tmp, ref byteEncrypt);
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if (iRet > 0)
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{
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sEncryptText = Encoding.Default.GetString(byteEncrypt, 0, iRet);
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}
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else
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{
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sEncryptText = pPlainText;
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|
|
//ComLog.WriteAMSLog("APL", "ERR", "0000", "고정키 암호화 실패");
|
|||
|
|
ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
|
|||
|
|
"UserAES.StaticKeyEncrypt()", "고정키 암호화 오류=>" + pPlainText);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
catch (Exception ex)
|
|||
|
|
{
|
|||
|
|
sEncryptText = pPlainText;
|
|||
|
|
ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
|
|||
|
|
"UserAES.StaticKeyEncrypt()", ex.Message);
|
|||
|
|
}
|
|||
|
|
return sEncryptText;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// 고정키 복호화
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="pEncryptText">암호문</param>
|
|||
|
|
/// <returns>복호화 실패하면 평문 리턴</returns>
|
|||
|
|
public static string StaticKeyDecrypt(string pEncryptText)
|
|||
|
|
{
|
|||
|
|
string sPlainText = string.Empty;
|
|||
|
|
|
|||
|
|
try
|
|||
|
|
{
|
|||
|
|
if (pEncryptText == "") return "";
|
|||
|
|
|
|||
|
|
byte[] byteEncryptText = Encoding.Default.GetBytes(pEncryptText);
|
|||
|
|
|
|||
|
|
byte[] byteKey = Encoding.Default.GetBytes(UserAES.STATIC_KEY);
|
|||
|
|
|
|||
|
|
//#if WindowsCE
|
|||
|
|
// byte[] tmpKey = new byte[byteKey.Length + 1];
|
|||
|
|
// Array.Copy(byteKey, tmpKey, byteKey.Length);
|
|||
|
|
|
|||
|
|
// byte[] tmp = new byte[64 * 1024];
|
|||
|
|
// Array.Copy(byteEncryptText, tmp, byteEncryptText.Length);
|
|||
|
|
|
|||
|
|
// byte[] byteTmpPlainText = new byte[64 * 1024];
|
|||
|
|
|
|||
|
|
// int iRet = AES_Base64_Decrypt(tmpKey, tmpKey, tmp, byteTmpPlainText);
|
|||
|
|
//#else
|
|||
|
|
byte[] tmpKey = new byte[byteKey.Length];
|
|||
|
|
Array.Copy(byteKey, tmpKey, byteKey.Length);
|
|||
|
|
|
|||
|
|
byte[] tmp = new byte[80 * 1024];
|
|||
|
|
Array.Copy(byteEncryptText, tmp, byteEncryptText.Length);
|
|||
|
|
|
|||
|
|
byte[] byteTmpPlainText = new byte[80 * 1024];
|
|||
|
|
|
|||
|
|
int iRet = DecryptByAESAndBase64(tmpKey, tmpKey, tmp, ref byteTmpPlainText);
|
|||
|
|
//int iRet = DecryptByAESAndBase64Ex(tmpKey, tmpKey, tmp, ref byteTmpPlainText);
|
|||
|
|
|
|||
|
|
//int iRet = AES_Base64_Decrypt(tmpKey, tmpKey, tmp, byteTmpPlainText);
|
|||
|
|
//m_Mutex.WaitOne();
|
|||
|
|
//byte[] byteTmpPlainText = new byte[byteEncryptText.Length];
|
|||
|
|
//int iRet = AES_Base64_Decrypt(byteKey, byteKey, byteEncryptText, byteTmpPlainText);
|
|||
|
|
//m_Mutex.ReleaseMutex();
|
|||
|
|
//#endif
|
|||
|
|
if (iRet > 0)
|
|||
|
|
{
|
|||
|
|
byte[] bytePlainText = new byte[iRet];
|
|||
|
|
Array.Copy(byteTmpPlainText, bytePlainText, iRet);
|
|||
|
|
sPlainText = Encoding.Default.GetString(bytePlainText, 0, iRet);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
sPlainText = pEncryptText;
|
|||
|
|
//ComLog.WriteAMSLog("APL", "ERR", "0000", "고정키 복호화 실패");
|
|||
|
|
ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
|
|||
|
|
"UserAES.StaticKeyDecrypt()", "고정키 복호화 오류=>" + pEncryptText);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
catch (Exception ex)
|
|||
|
|
{
|
|||
|
|
sPlainText = pEncryptText;
|
|||
|
|
ComLog.WriteLogFile(ComLib.LOG_ERROR, System.Reflection.Assembly.GetExecutingAssembly().ManifestModule.Name,
|
|||
|
|
"UserAES.StaticKeyDecrypt()", ex.Message);
|
|||
|
|
}
|
|||
|
|
return sPlainText;
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
#region AES-BASE64 암호화/복호화(속도개선)
|
|||
|
|
/// <summary>
|
|||
|
|
/// AES-BASE64 암호화(속도개선)
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="key">암호화KEY</param>
|
|||
|
|
/// <param name="iv">Initialize Vector</param>
|
|||
|
|
/// <param name="plainData">평문</param>
|
|||
|
|
/// <param name="encodedData">암호문</param>
|
|||
|
|
private static int EncryptByAESAndBase64Ex(byte[] key, byte[] iv, byte[] plainData, ref byte[] encodedData)
|
|||
|
|
{
|
|||
|
|
AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
|
|||
|
|
aes.BlockSize = 128;
|
|||
|
|
aes.KeySize = 128;
|
|||
|
|
aes.IV = iv;
|
|||
|
|
aes.Key = key;
|
|||
|
|
aes.Mode = CipherMode.CBC;
|
|||
|
|
aes.Padding = PaddingMode.PKCS7;
|
|||
|
|
|
|||
|
|
//Encryption
|
|||
|
|
using (ICryptoTransform encrypt = aes.CreateEncryptor())
|
|||
|
|
{
|
|||
|
|
byte[] dest = encrypt.TransformFinalBlock(plainData, 0, plainData.Length);
|
|||
|
|
|
|||
|
|
// 암호화된 데이터를 Base64 인코딩된 문자열로 변환
|
|||
|
|
encodedData = Encoding.Default.GetBytes(Convert.ToBase64String(dest));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return encodedData.Length;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// AES-BASE64 복호화(속도개선)
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="key">암호화KEY</param>
|
|||
|
|
/// <param name="iv">Initialize Vector</param>
|
|||
|
|
/// <param name="encodedData">암호문</param>
|
|||
|
|
/// <param name="plainData">평문</param>
|
|||
|
|
private static int DecryptByAESAndBase64Ex(byte[] key, byte[] iv, byte[] encodedData, ref byte[] plainData)
|
|||
|
|
{
|
|||
|
|
AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
|
|||
|
|
aes.BlockSize = 128;
|
|||
|
|
aes.KeySize = 128;
|
|||
|
|
aes.IV = iv;
|
|||
|
|
aes.Key = key;
|
|||
|
|
aes.Mode = CipherMode.CBC;
|
|||
|
|
aes.Padding = PaddingMode.PKCS7;
|
|||
|
|
|
|||
|
|
byte[] encryptedData = Convert.FromBase64String(Encoding.Default.GetString(encodedData, 0, Array.IndexOf(encodedData, (byte)0x00)));
|
|||
|
|
|
|||
|
|
//Decryption
|
|||
|
|
using (ICryptoTransform decrypt = aes.CreateDecryptor())
|
|||
|
|
{
|
|||
|
|
plainData = decrypt.TransformFinalBlock(encryptedData, 0, encryptedData.Length);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return plainData.Length;
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
#region AES-BASE64 암호화/복호화
|
|||
|
|
/// <summary>
|
|||
|
|
/// AES-BASE64 암호화
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="key">암호화KEY</param>
|
|||
|
|
/// <param name="iv">Initialize Vector</param>
|
|||
|
|
/// <param name="plainData">평문</param>
|
|||
|
|
/// <param name="encodedData">암호문</param>
|
|||
|
|
private static int EncryptByAESAndBase64(byte[] key, byte[] iv, byte[] plainData, ref byte[] encodedData)
|
|||
|
|
{
|
|||
|
|
Array.Clear(encodedData, 0, encodedData.Length);
|
|||
|
|
RijndaelManaged rijndaelCipher = new RijndaelManaged();
|
|||
|
|
|
|||
|
|
//// key에 salt 사용
|
|||
|
|
//byte[] salt = Encoding.Default.GetBytes(key.Length.ToString());
|
|||
|
|
|
|||
|
|
//PasswordDeriveBytes secretKey = new PasswordDeriveBytes(key, salt);
|
|||
|
|
rijndaelCipher.Key = key;
|
|||
|
|
rijndaelCipher.IV = iv;
|
|||
|
|
|
|||
|
|
//ICryptoTransform encryptor = rijndaelCipher.CreateEncryptor(secretKey.GetBytes(32), secretKey.GetBytes(16));
|
|||
|
|
ICryptoTransform encryptor = rijndaelCipher.CreateEncryptor(rijndaelCipher.Key, rijndaelCipher.IV);
|
|||
|
|
|
|||
|
|
MemoryStream memoryStream = new MemoryStream();
|
|||
|
|
|
|||
|
|
CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
|
|||
|
|
|
|||
|
|
// 암호화 프로세스 진행
|
|||
|
|
cryptoStream.Write(plainData, 0, Array.IndexOf(plainData, (byte)0x00));
|
|||
|
|
|
|||
|
|
// 암호화 종료
|
|||
|
|
cryptoStream.FlushFinalBlock();
|
|||
|
|
|
|||
|
|
// 암호화된 데이터를 바이트 배열에 저장
|
|||
|
|
byte[] cipherBytes = memoryStream.ToArray();
|
|||
|
|
|
|||
|
|
memoryStream.Close();
|
|||
|
|
cryptoStream.Close();
|
|||
|
|
|
|||
|
|
// 암호화된 데이터를 Base64 인코딩된 문자열로 변환
|
|||
|
|
encodedData = Encoding.Default.GetBytes(Convert.ToBase64String(cipherBytes));
|
|||
|
|
|
|||
|
|
return encodedData.Length;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// AES-BASE64 복호화
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="key">암호화KEY</param>
|
|||
|
|
/// <param name="iv">Initialize Vector</param>
|
|||
|
|
/// <param name="encodedData">암호문</param>
|
|||
|
|
/// <param name="plainData">평문</param>
|
|||
|
|
private static int DecryptByAESAndBase64(byte[] key, byte[] iv, byte[] encodedData, ref byte[] plainData)
|
|||
|
|
{
|
|||
|
|
RijndaelManaged rijndaelCipher = new RijndaelManaged();
|
|||
|
|
|
|||
|
|
byte[] encryptedData = Convert.FromBase64String(Encoding.Default.GetString(encodedData, 0, Array.IndexOf(encodedData, (byte)0x00)));
|
|||
|
|
|
|||
|
|
//// key에 salt 사용
|
|||
|
|
//byte[] salt = Encoding.Default.GetBytes(key.Length.ToString());
|
|||
|
|
|
|||
|
|
//PasswordDeriveBytes secretKey = new PasswordDeriveBytes(key, salt);
|
|||
|
|
rijndaelCipher.Key = key;
|
|||
|
|
rijndaelCipher.IV = iv;
|
|||
|
|
|
|||
|
|
ICryptoTransform decryptor = rijndaelCipher.CreateDecryptor(rijndaelCipher.Key, rijndaelCipher.IV);
|
|||
|
|
|
|||
|
|
MemoryStream memoryStream = new MemoryStream(encryptedData);
|
|||
|
|
|
|||
|
|
CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
|
|||
|
|
|
|||
|
|
// 복호화 진행
|
|||
|
|
cryptoStream.Read(plainData, 0, encryptedData.Length);
|
|||
|
|
|
|||
|
|
memoryStream.Close();
|
|||
|
|
cryptoStream.Close();
|
|||
|
|
|
|||
|
|
return Array.IndexOf(plainData, (byte)0x00);
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|