我正在尝试使用 BouncyCastle 使用 PKCS 7 文件标准加密文件。这是我输出p7m文件的代码。当我去解密文件(使用 Entrust)时,系统会提示我输入我的密钥存储密码,因此它知道文件是使用 AES 128 为我加密的,但它无法解密文件的正文。加密一定有问题。
byte[] fileContent = readFile(filename);
FileStream outStream = null;
Stream cryptoStream = null;
BinaryWriter binWriter = null;
try
{
CmsEnvelopedDataStreamGenerator dataGenerator = new CmsEnvelopedDataStreamGenerator();
dataGenerator.AddKeyTransRecipient(cert); //cert is the user's x509cert that i am encrypting for
outStream = new FileStream(filename + ".p7m", FileMode.Create);
cryptoStream = dataGenerator.Open(outStream, CmsEnvelopedGenerator.Aes128Cbc);
binWriter = new BinaryWriter(cryptoStream);
binWriter.Write(fileContent);
}
当我尝试使用 BouncyCastle 解密文件时,当我将文件内容传递给 CMSEnveloped 对象时出现此错误:
IOException converting stream to byte array: Attempted to read past the end of the stream.
有什么想法吗?