加解密错误
加解密错误
提问于 2014-12-09 17:07:22
我有一个非常简单的加密和解密代码。但是，当我加密解密时，输出并不是我最初输入的输出。
这是加密：
static byte[] Encrypt(SymmetricAlgorithm aesAlg, string plainText)
{
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
swEncrypt.Write(plainText);
}
return msEncrypt.ToArray();
}
}
}解密：
static string Decrypt(SymmetricAlgorithm aesAlg, byte[] cipherText)
{
ICryptoTransform decryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
return srDecrypt.ReadToEnd();
}
}
}
}Main：
public static void Main()
{
string original = "My secret data!";
using (SymmetricAlgorithm symmetricAlgorithm = new AesManaged())
{
byte[] encrypted = Encrypt(symmetricAlgorithm, original);
string roundtrip = Decrypt(symmetricAlgorithm, encrypted);
Console.WriteLine("Original: {0}", original);
Console.WriteLine("RoundTrip: {0}", roundtrip);
}
}产出应是：
Original: My secret data!
RoundTrip: My secret data!然而，它的结果是：
Original: My secret data!
RoundTrip: ">�����6dB&JD䮦�L�ܹ�SKo\v*.�"或者其他类似的有趣的事情。
我在网上找不到任何有用的东西。如有任何建议，将不胜感激。
回答 2
Stack Overflow用户
回答已采纳
发布于 2014-12-09 17:31:34
问题在于，在您的Decrypt方法中，您创建了另一个加密器，而不是Decryptor！
如果你改变了路线
aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);至
aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);然后你会得到被欺骗的文本。
Stack Overflow用户
发布于 2014-12-09 17:36:42
解密码
static string Decrypt(SymmetricAlgorithm aesAlg, byte[] cipherText)
{
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
return srDecrypt.ReadToEnd();
}
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/27384674
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