信息计算2019级1班29号敖若瑶

信息计算敖若瑶 · 发表于 2022-4-5 15:29:53

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信息计算敖若瑶 · 发表于 2022-4-5 21:45:48

本帖最后由信息计算敖若瑶于 2022-4-5 22:49 编辑

using System;
using System.Text;
using System.Reflection.Metadata;
using Microsoft.Office.Interop.Word;
namespace AES
{
class Program
{
private static object app;
/// <summary>
///AES 算法加密(ECB模式) 将明文加密，加密后进行Hex编码，返回密文
/// </summary>
/// <param name="str">明文</param>
/// <param name="key">密钥</param>
/// <returns>加密后Hex编码的密文</returns>
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);
}
private static string ToHexString(byte[] resultArray)
{
throw new NotImplementedException();
}
/// <summary>
///AES 算法解密(ECB模式) 将密文Hex解码后进行解密，返回明文
/// </summary>
/// <param name="str">密文</param>
/// <param name="key">密钥</param>
/// <returns>明文</returns>
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 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 doc = null;
object unknow = Type.Missing;
A.Visible = true;
string str = @"/Users/gesilasapple/Desktop/大三下学业/密码学/读后感.docx";
object file = str;
doc = A.Documents.Open(ref file,
ref unknow, ref unknow, ref unknow, ref unknow,
ref unknow, ref unknow, ref unknow, ref unknow,
ref unknow, ref unknow);
string str1 = doc.Content.Text.Trim();
string str2 = AesEncryptor_Hex(str1, "364836143850abc46746243098546756");
Console.WriteLine("Hex加密密文：" + str2);
string str3 = AesDecryptor_Hex(str2, "364836143850abc46746243098546756");
Console.WriteLine("Hex解密密文：" + str3);
}
}
}

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信息计算2019级1班29号敖若瑶

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