0
A
回答
1
是的。您可以使用如下的代码在http://www.codeproject.com/Articles/769741/Csharp-AES-bits-Encryption-Library-with-Salt
您可以使用RIJNDAEL
:
首先,你需要包括using System.Security.Cryptography;
public byte[] AES_Encrypt(byte[] bytesToBeEncrypted, byte[] passwordBytes)
{
byte[] encryptedBytes = null;
// Set your salt here, change it to meet your flavor:
// The salt bytes must be at least 8 bytes.
byte[] saltBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
using (MemoryStream ms = new MemoryStream())
{
using (RijndaelManaged AES = new RijndaelManaged())
{
AES.KeySize = 256;
AES.BlockSize = 128;
var key = new Rfc2898DeriveBytes(passwordBytes, saltBytes, 1000);
AES.Key = key.GetBytes(AES.KeySize/8);
AES.IV = key.GetBytes(AES.BlockSize/8);
AES.Mode = CipherMode.CBC;
using (var cs = new CryptoStream(ms, AES.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(bytesToBeEncrypted, 0, bytesToBeEncrypted.Length);
cs.Close();
}
encryptedBytes = ms.ToArray();
}
}
return encryptedBytes;
}
public byte[] AES_Decrypt(byte[] bytesToBeDecrypted, byte[] passwordBytes)
{
byte[] decryptedBytes = null;
// Set your salt here, change it to meet your flavor:
// The salt bytes must be at least 8 bytes.
byte[] saltBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
using (MemoryStream ms = new MemoryStream())
{
using (RijndaelManaged AES = new RijndaelManaged())
{
AES.KeySize = 256;
AES.BlockSize = 128;
var key = new Rfc2898DeriveBytes(passwordBytes, saltBytes, 1000);
AES.Key = key.GetBytes(AES.KeySize/8);
AES.IV = key.GetBytes(AES.BlockSize/8);
AES.Mode = CipherMode.CBC;
using (var cs = new CryptoStream(ms, AES.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(bytesToBeDecrypted, 0, bytesToBeDecrypted.Length);
cs.Close();
}
decryptedBytes = ms.ToArray();
}
}
return decryptedBytes;
}
public void EncryptFile(string filename, string outfilename, string psw)
{
string file = filename;
string password = psw;
byte[] bytesToBeEncrypted = File.ReadAllBytes(file); //read bytes to encrypt them
byte[] passwordBytes = Encoding.UTF8.GetBytes(password); //read with UTF8 encoding the password.
passwordBytes = SHA256.Create().ComputeHash(passwordBytes); //hash the psw
byte[] bytesEncrypted = AES_Encrypt(bytesToBeEncrypted, passwordBytes);
string fileEncrypted = outfilename;
File.WriteAllBytes(fileEncrypted, bytesEncrypted);
}
public void DecryptFile(string filename, string outfilename, string psw)
{
string fileEncrypted = filename;
string password = psw;
byte[] bytesToBeDecrypted = File.ReadAllBytes(fileEncrypted);
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
byte[] bytesDecrypted = AES_Decrypt(bytesToBeDecrypted, passwordBytes);
string file = outfilename;
File.WriteAllBytes(file, bytesDecrypted);
}
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http://yossi-yakubov.blogspot.co.id/2010/07 /aes-encryption-using-c-short-way.html –