如何解决.Net C++ 中的解密字符串
我有一个小问题来找你。实际上,我正在尝试创建一个能够在 .NET C++ 中解密字符串的函数。这是我的函数代码:
array<Byte>^ chipherbytes;
array<Byte>^ plainbytes2;
array<Byte>^ plainkey;
SymmetricAlgorithm^ desObj;
desObj = Rijndael::Create();
chipherbytes = Encoding::ASCII->GetBytes(dataGridView1->CurrentCell->Value->ToString());
plainkey = Encoding::ASCII->GetBytes("0123456789abcdef");
desObj->Key = plainkey;
desObj->Mode = CipherMode::CBC;
desObj->Padding=PaddingMode::PKCS7;
MemoryStream^ ms1 = gcnew MemoryStream(chipherbytes);
CryptoStream^ cs1 = gcnew CryptoStream(ms1,desObj->CreateDecryptor(),CryptoStreamMode::Read);
cs1->Read(chipherbytes,chipherbytes->Length); //<- in this line is problem
plainbytes2 = ms1->ToArray();
cs1->Close();
ms1->Close();
textBox1->Text = Encoding::ASCII->GetString(plainbytes2);
但是当我开始调试然后我打开这个功能然后程序崩溃并且是通信“System.Security.Cryptography.CryptographicException:补码无效并且无法删除。”它显示在标记的标签中。谁能给我建议?
编辑:
这是代码的加密部分:
cipherData = textBox6->Text;
plainbytes = Encoding::ASCII->GetBytes(cipherData);
plainkey = Encoding::ASCII->GetBytes("0123456789abcdef");
desObj->Key = plainkey;
//choose other appropriate modes (CBC,CFB,CTS,ECB,OFB)
desObj->Mode = CipherMode::CBC;
desObj->Padding = PaddingMode::PKCS7;
MemoryStream^ ms = gcnew MemoryStream();
CryptoStream^ cs = gcnew CryptoStream(ms,desObj->CreateEncryptor(),CryptoStreamMode::Write);
cs->Write(plainbytes,plainbytes->Length);
cs->Close();
chipherbytes = ms->ToArray();
ms->Close();
textBox7->Text = Encoding::ASCII->GetString(chipherbytes);
顺便说一下,我想将加密数据发送到 MysqL 数据库,然后从数据库中下载并解密。
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