Rijndael加密算法在.NET中使用以下示例中的3个流实现:Rinjdael。
有人可以向我解释这些流正在做什么吗?他们是如何/为何使用?
// Declare the streams used
// to encrypt to an in memory
// array of bytes.
MemoryStream msEncrypt = null;
CryptoStream csEncrypt = null;
StreamWriter swEncrypt = null;
// Declare the RijndaelManaged object
// used to encrypt the data.
RijndaelManaged aesAlg = null;
try
{
// Create a RijndaelManaged object
// with the specified key and IV.
aesAlg = new RijndaelManaged();
aesAlg.Key = Key;
aesAlg.IV = IV;
// Create a encryptor to perform the stream transform.
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for encryption.
msEncrypt = new MemoryStream();
csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
swEncrypt = new StreamWriter(csEncrypt);
//Write all data to the stream.
swEncrypt.Write(plainText);
}
答案 0 :(得分:3)
swEncrypt
是StreamWriter
- 其工作是将文本转换为二进制数据
csEncrypt
是CryptoStream
- 它的工作是将二进制数据转换为加密的二进制数据
msEncrypt
是一个MemoryStream
- 它的工作是将它在内存中提供的数据存储起来,以便稍后将其删除
当你把它们放在一起时,你基本上得到的东西是你可以在一端写明文,并获得另一端的加密二进制数据(暂时存储在内存中)。