.net AES文件加密在C++/CLI

我正试图加密一个文件。做了一次搜索，找到了。这是我将其转换为C++/CLI的尝试

using namespace System;
using namespace System::IO;
using namespace System::Security::Cryptography;

void DecryptFile(String^ sourceFilename, String^ destinationFilename, String^ password, array<Byte>^ salt, int iterations){
try{
    RijndaelManaged^ aes = gcnew RijndaelManaged();
    aes->BlockSize = aes->LegalBlockSizes[0]->MaxSize;
    aes->KeySize = aes->LegalKeySizes[0]->MaxSize;
    // NB: Rfc2898DeriveBytes initialization and subsequent calls to   GetBytes   must be eactly the same, including order, on both the encryption and decryption sides.
    Rfc2898DeriveBytes ^key = gcnew Rfc2898DeriveBytes(password, salt, iterations);
    aes->Key = key->GetBytes(aes->KeySize / 8);
    aes->IV = key->GetBytes(aes->BlockSize / 8);
    aes->Mode = CipherMode::CBC;
    ICryptoTransform^ transform = aes->CreateDecryptor(aes->Key, aes->IV);

    FileStream^ destination = gcnew FileStream(destinationFilename, FileMode::OpenOrCreate, FileAccess::Write, FileShare::None);
    CryptoStream^ cryptoStream = gcnew CryptoStream(destination, transform, CryptoStreamMode::Write);
    FileStream^ source = gcnew FileStream(sourceFilename, FileMode::Open, FileAccess::Read, FileShare::Read);
    source->CopyTo(cryptoStream);
}
catch (Exception^ exception){Console::WriteLine(exception->Message);}
}

void EncryptFile(String^ sourceFilename, String^ destinationFilename, String^ password, array<Byte>^ salt, int iterations){
try{
    RijndaelManaged^ aes = gcnew RijndaelManaged();
    aes->BlockSize = aes->LegalBlockSizes[0]->MaxSize;
    aes->KeySize = aes->LegalKeySizes[0]->MaxSize;
    // NB: Rfc2898DeriveBytes initialization and subsequent calls to   GetBytes   must be eactly the same, including order, on both the encryption and decryption sides.
    Rfc2898DeriveBytes^ key = gcnew Rfc2898DeriveBytes(password, salt, iterations);
    aes->Key = key->GetBytes(aes->KeySize / 8);
    aes->IV = key->GetBytes(aes->BlockSize / 8);
    aes->Mode = CipherMode::CBC;
    ICryptoTransform^ transform = aes->CreateEncryptor(aes->Key, aes->IV);

    FileStream^ destination = gcnew FileStream(destinationFilename, FileMode::OpenOrCreate, FileAccess::Write, FileShare::None);
    CryptoStream^ cryptoStream = gcnew CryptoStream(destination, transform, CryptoStreamMode::Write);
    FileStream^ source = gcnew FileStream(sourceFilename, FileMode::Open, FileAccess::Read, FileShare::Read);
    source->CopyTo(cryptoStream);
}
catch(Exception^ exception){Console::WriteLine(exception->Message);}
}

int main(){
srand(time(NULL));
array<Byte>^ salt = gcnew array<Byte> { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // Must be at least eight bytes.  MAKE THIS SALTIER!
int iterations=rand();
EncryptFile("C:\\Users\\test\\Desktop\\test.txt", "C:\\Users\\test\\Desktop\\test1.txt", "afckingpinecone.", salt, iterations);
DecryptFile("C:\\Users\\test\\Desktop\\test1.txt", "C:\\Users\\test\\Desktop\\test2.txt", "afckingpinecone.", salt, iterations);
return 0;
}

使用名称空间系统；
使用名称空间系统：：IO；
使用名称空间System:：Security:：Cryptography；
无效解密文件（字符串^sourceFilename、字符串^destinationFilename、字符串^password、数组^salt、整数迭代）{
试一试{
RijndaelManaged^aes=gcnew RijndaelManaged（）；
aes->BlockSize=aes->LegalBlockSize[0]->MaxSize；
aes->KeySize=aes->LegalKeySizes[0]->MaxSize；
//注意：Rfc2898DeriveBytes初始化和对GetBytes的后续调用在加密和解密端都必须完全相同，包括顺序。
Rfc2898DeriveBytes^key=gcnew Rfc2898DeriveBytes（密码、salt、迭代次数）；
aes->Key=Key->GetBytes（aes->KeySize/8）；
aes->IV=key->GetBytes（aes->BlockSize/8）；
aes->Mode=CipherMode:：CBC；
ICryptoTransform^transform=aes->CreateDecryptor（aes->Key，aes->IV）；
FileStream^destination=gcnewfilestream（destinationFilename，FileMode:：OpenOrCreate，FileAccess:：Write，FileShare:：None）；
CryptoStream^CryptoStream=gcnew CryptoStream（目标、转换、CryptoStreamMode:：Write）；
FileStream^source=gcnewfilestream（sourceFilename，FileMode:：Open，FileAccess:：Read，FileShare:：Read）；
源->复制到（加密流）；
}
catch（异常^Exception）{Console:：WriteLine（异常->消息）；}
}
void EncryptFile（字符串^sourceFilename，字符串^destinationFilename，字符串^password，数组^salt，int迭代次数）{
试一试{
RijndaelManaged^aes=gcnew RijndaelManaged（）；
aes->BlockSize=aes->LegalBlockSize[0]->MaxSize；
aes->KeySize=aes->LegalKeySizes[0]->MaxSize；
//注意：Rfc2898DeriveBytes初始化和对GetBytes的后续调用在加密和解密端都必须完全相同，包括顺序。
Rfc2898DeriveBytes^key=gcnew Rfc2898DeriveBytes（密码、salt、迭代次数）；
aes->Key=Key->GetBytes（aes->KeySize/8）；
aes->IV=key->GetBytes（aes->BlockSize/8）；
aes->Mode=CipherMode:：CBC；
ICryptoTransform^transform=aes->CreateEncryptor（aes->Key，aes->IV）；
FileStream^destination=gcnewfilestream（destinationFilename，FileMode:：OpenOrCreate，FileAccess:：Write，FileShare:：None）；
CryptoStream^CryptoStream=gcnew CryptoStream（目标、转换、CryptoStreamMode:：Write）；
FileStream^source=gcnewfilestream（sourceFilename，FileMode:：Open，FileAccess:：Read，FileShare:：Read）；
源->复制到（加密流）；
}
catch（异常^Exception）{Console:：WriteLine（异常->消息）；}
}
int main（）{
srand（时间（空））；
数组^salt=gcnew数组{0x00，0x00，0x00，0x00，0x00，0x00，0x00}；//必须至少为八个字节。请使此数组更咸！
int迭代次数=rand（）；
加密文件（“C:\\Users\\test\\Desktop\\test.txt”、“C:\\Users\\test\\Desktop\\test1.txt”、“afckingpinecone.”、salt、iterations）；
解密文件（“C:\\Users\\test\\Desktop\\test1.txt”、“C:\\Users\\test\\Desktop\\test2.txt”、“afckingpinecone.”、salt、iterations）；
返回0；
}

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我测试了2个文件。一个.png和一个纯文本。图像加密和解密很好，但文本文件没有。原始文件包含一个15字节的ASCII字符串，但加密和解密的文件是0字节。

如果忘记关闭流，请在加密/解密函数的末尾添加以下行

cryptoStream->Close();
destination->Close();

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C#程序员往往会因为使用语句而陷入成功的陷阱。你必须学会找到同一个坑。按原样，CryptoStream->FlushFinalBlock（）丢失，并且您也没有调用delete CryptoStream。所以没有最后一个街区了，谢谢。如果你把它作为一个答案贴出来，我会接受的，只要你自己贴出来，展示你使用的代码，然后接受它来结束你的问题。