无法使用AES算法解密文件，iv dosenot匹配块大小C＃ [英] Unable to decrypt the file using AES algorithm, iv dosenot match the block size C#
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问题描述
在下面的代码中我无法解密文件
i正在获取其他程序使用的路径错误.Iv dosenot匹配块大小
我尝试了什么：
Hi,
In the below code o am unable to decrypt the file
i am getting error as path used by other program.Iv dosenot match the block size
What I have tried:
namespace File_Encryption
{
class AES
{
public void EncryptFile(string inputFile, string outputFile)
{
try
{
string password = @"pwd123$"; // Your Key Here
UnicodeEncoding UE = new UnicodeEncoding();
byte[] key = UE.GetBytes(password);
string cryptFile = outputFile;
FileStream fsCrypt = new FileStream(cryptFile, FileMode.Create);
RijndaelManaged RMCrypto = new RijndaelManaged();
CryptoStream cs = new CryptoStream(fsCrypt,RMCrypto.CreateEncryptor(key,key),CryptoStreamMode.Write);
FileStream fsIn = new FileStream(inputFile, FileMode.Open);
int data;
while ((data = fsIn.ReadByte()) != -1)
cs.WriteByte((byte)data);
fsIn.Close();
cs.Close();
fsCrypt.Close();
}
catch(Exception e)
{
}
}
///<summary>
/// Steve Lydford - 12/05/2008.
///
/// Decrypts a file using Rijndael algorithm.
///</summary>
///<param name="inputFile"></param>
///<param name="outputFile"></param>
public void DecryptFile(string inputFile, string outputFile)
{
{
string password = @"pwd123$"; // Your Key Here
UnicodeEncoding UE = new UnicodeEncoding();
byte[] key = UE.GetBytes(password);
FileStream fsCrypt = new FileStream(inputFile, FileMode.Open);
RijndaelManaged RMCrypto = new RijndaelManaged();
CryptoStream cs = new CryptoStream(fsCrypt,RMCrypto.CreateDecryptor(key, key),CryptoStreamMode.Read);
FileStream fsOut = new FileStream(outputFile, FileMode.Create);
int data;
while ((data = cs.ReadByte()) != -1)
fsOut.WriteByte((byte)data);
fsOut.Close();
cs.Close();
fsCrypt.Close();
}
}
}
}
using System;
using System.IO;
using System.Text;
using System.Data;
using File_Encryption;
namespace dsfsd
{
class Program
{
public static void Main()
{
File_Encryption.AES a=new AES();
a.EncryptFile("E:\\Anusha\\Path.txt","E:\\Anusha\\path.enc","123456");
a.DecryptFile("E:\\Anusha\\Path.enc","E:\\Anusha\\path.dec","123456");
}
}
}
推荐答案
; //你的钥匙在这里
UnicodeEncoding UE = new UnicodeEncoding（）;
byte [] key = UE.GetBytes（password）;
string cryptFile = outputFile;
FileStream fsCrypt = new FileStream（cryptFile，FileMode.Create）;
RijndaelManaged RMCrypto = new RijndaelManaged（）;
CryptoStream cs = new CryptoStream（fsCrypt，RMCrypto.CreateEncryptor（key，key），CryptoStreamMode.Write）;
FileStream fsIn = new FileStream（inputFile， FileMode.Open）;
int data;
while（（data = fsIn.ReadByte（））！= -1）
cs.WriteByte（（byte）data）;
fsIn.Close（）;
cs.Close（）;
fsCrypt.Close（）;
}
catch（例外e）
{
}
}
///< summary>
/// Steve Lydford - 12/05/2008。
///
///使用Rijndael算法解密文件。
///< / summary>
///< param name =inputFile>< / param>
///< param name =outputFile>< / param>
public void DecryptFile（string inputFile，string outputFile）
{
{
string password = @pwd123
"; // Your Key Here UnicodeEncoding UE = new UnicodeEncoding(); byte[] key = UE.GetBytes(password); string cryptFile = outputFile; FileStream fsCrypt = new FileStream(cryptFile, FileMode.Create); RijndaelManaged RMCrypto = new RijndaelManaged(); CryptoStream cs = new CryptoStream(fsCrypt,RMCrypto.CreateEncryptor(key,key),CryptoStreamMode.Write); FileStream fsIn = new FileStream(inputFile, FileMode.Open); int data; while ((data = fsIn.ReadByte()) != -1) cs.WriteByte((byte)data); fsIn.Close(); cs.Close(); fsCrypt.Close(); } catch(Exception e) { } } ///<summary> /// Steve Lydford - 12/05/2008. /// /// Decrypts a file using Rijndael algorithm. ///</summary> ///<param name="inputFile"></param> ///<param name="outputFile"></param> public void DecryptFile(string inputFile, string outputFile) { { string password = @"pwd123
; //你的钥匙在这里
UnicodeEncoding UE = new UnicodeEncoding（）;
byte [] key = UE.GetBytes（password）;
FileStream fsCrypt = new FileStream（inputFile，FileMode.Open）;
RijndaelManaged RMCrypto = new RijndaelManaged（）;
CryptoStream cs = new CryptoStream（fsCrypt，RMCrypto.CreateDecryptor（key，key），CryptoStreamMode.Read）;
FileStream fsOut = new FileStream（outputFile，FileMode.Create）;
int数据;
while（（data = cs.ReadByte（））！= -1）
fsOut.WriteByte（（byte）data）;
fsOut.Close（）;
cs.Close（）;
fsCrypt.Close（）;
}
}
}
}
"; // Your Key Here UnicodeEncoding UE = new UnicodeEncoding(); byte[] key = UE.GetBytes(password); FileStream fsCrypt = new FileStream(inputFile, FileMode.Open); RijndaelManaged RMCrypto = new RijndaelManaged(); CryptoStream cs = new CryptoStream(fsCrypt,RMCrypto.CreateDecryptor(key, key),CryptoStreamMode.Read); FileStream fsOut = new FileStream(outputFile, FileMode.Create); int data; while ((data = cs.ReadByte()) != -1) fsOut.WriteByte((byte)data); fsOut.Close(); cs.Close(); fsCrypt.Close(); } } } }
using System;
using System.IO;
using System.Text;
using System.Data;
using File_Encryption;
namespace dsfsd
{
class Program
{
public static void Main()
{
File_Encryption.AES a=new AES();
a.EncryptFile("E:\\Anusha\\Path.txt","E:\\Anusha\\path.enc","123456");
a.DecryptFile("E:\\Anusha\\Path.enc","E:\\Anusha\\path.dec","123456");
}
}
}
其他人之前发生过类似的错误（或者使用了网络上的一些代码而没有验证它是正确的。
请参阅SO线程的答案 c＃ - 指定的初始化向量（IV）与此算法的块大小不匹配 - Stack Overflow [ ^ 。它很好地解释了你的代码有什么问题。
Other's have made similar errors before (or used some code found in the web without verifying that it is correct).
See the answer at the SO thread c# - Specified initialization vector(IV) does not match the block size for this algorithm - Stack Overflow[^]. It explains very well what is wrong with your code.
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