信息计算2019级2班2号胡莘梅

信计19-2胡莘梅 · 发表于 2022-4-5 17:59:05

2022/4/5 mooc截图

信计19-2胡莘梅 · 发表于 2022-4-5 21:26:39

本帖最后由信计19-2胡莘梅于 2022-4-5 21:28 编辑

using System;
using System.Security.Cryptography;
using System.Text;
using Microsoft.Office.Interop.Word;
namespace AES
{
class Program
{
public static string AesEncryptor_Base64(string EncryptStr, string Key)
{
try
{
//byte[] keyArray = Encoding.UTF8.GetBytes(Key);
byte[] keyArray = Convert.FromBase64String(Key);
byte[] toEncryptArray = Encoding.UTF8.GetBytes(EncryptStr);
RijndaelManaged rDel = new RijndaelManaged();
rDel.Key = keyArray;
rDel.Mode = CipherMode.ECB;
rDel.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = rDel.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
catch (Exception ex)
{
return null;
}
}
public static string AesDecryptor_Base64(string DecryptStr, string Key)
{
try
{
//byte[] keyArray = Encoding.UTF8.GetBytes(Key);
byte[] keyArray = Convert.FromBase64String(Key);
byte[] toEncryptArray = Convert.FromBase64String(DecryptStr);
RijndaelManaged rDel = new RijndaelManaged();
rDel.Key = keyArray;
rDel.Mode = CipherMode.ECB;
rDel.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = rDel.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return Encoding.UTF8.GetString(resultArray);// UTF8Encoding.UTF8.GetString(resultArray);
}
catch (Exception ex)
{
return null;
}
}
public static string AesEncryptor_Hex(string str, string key)
{
if (string.IsNullOrEmpty(str)) return null;
Byte[] toEncryptArray = Encoding.UTF8.GetBytes(str);
System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
{
Key = StrToHexByte(key),
Mode = System.Security.Cryptography.CipherMode.ECB,
Padding = System.Security.Cryptography.PaddingMode.PKCS7
};
System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateEncryptor();
Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return ToHexString(resultArray);
}
public static string AesDecryptor_Hex(string str, string key)
{
if (string.IsNullOrEmpty(str)) return null;
Byte[] toEncryptArray = StrToHexByte(str);
System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
{
Key = StrToHexByte(key),
Mode = System.Security.Cryptography.CipherMode.ECB,
Padding = System.Security.Cryptography.PaddingMode.PKCS7
};
System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateDecryptor();
Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return Encoding.UTF8.GetString(resultArray);
}
public static string ToHexString(byte[] bytes) // 0xae00cf => "AE00CF "
{
string hexString = string.Empty;
if (bytes != null)
{
StringBuilder strB = new StringBuilder();
for (int i = 0; i < bytes.Length; i++)
{
strB.Append(bytes[i].ToString("X2"));
}
hexString = strB.ToString();
}
return hexString;
}
public static byte[] StrToHexByte(string hexString)
{
hexString = hexString.Replace(" ", "");
if ((hexString.Length % 2) != 0)
hexString += " ";
byte[] returnBytes = new byte[hexString.Length / 2];
for (int i = 0; i < returnBytes.Length; i++)
returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
return returnBytes;
}
static void Main(string[] args)
{
Microsoft.Office.Interop.Word.Application A = new Microsoft.Office.Interop.Word.Application();//打开word程序
Document docx = null;
object unknow = Type.Missing;
A.Visible = true;
object paramSourceDocPath = @"C:\Users\Lune\Desktop\泡面.docx";
docx = A.Documents.Open(ref paramSourceDocPath,
ref unknow, ref unknow, ref unknow, ref unknow, ref unknow,
ref unknow, ref unknow, ref unknow, ref unknow, ref unknow,
ref unknow, ref unknow, ref unknow, ref unknow, ref unknow);
string str = docx.Content.Text.Trim();
string str1 = AesEncryptor_Base64(str, "7645546321654321bac7534567446654");
Console.WriteLine("Base64加密：\n" + str1);
string str2 = AesDecryptor_Base64(str1, "7645546321654321bac7534567446654");
Console.WriteLine("\nBase64解密：\n" + str2);
string str3 = AesEncryptor_Hex(str, "361250043850abc46746243098546756");
Console.WriteLine("\nHex加密：\n" + str3);
string str4 = AesDecryptor_Hex(str3, "361250043850abc46746243098546756");
Console.WriteLine("\nHex解密：\n" + str4);
}
}
}

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信息计算2019级2班2号胡莘梅

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