public static string Encrypt(string data, int key = 0)
{
if (data == null)
{
return(null);
}
if (string.IsNullOrEmpty(data))
{
return("");
}
int keyIndex = key;
string nonce = Utility.GenerateNonce(NONCE_LENGTH);
string toEncrypt = data + nonce;
byte[] binary = Encoding.UTF8.GetBytes(toEncrypt);
byte[] encrypted;
AESCryptor.Encrypt(ref keyIndex, ref binary, out encrypted);
string beEncrypted = StringTools.ToBase64String(encrypted);
beEncrypted = keyIndex + Utility.SEP + beEncrypted + Utility.SEP + nonce;
return(beEncrypted);
}
public static string EncryptToString(byte[] data, int key = 0)
{
if (data == null)
{
return(null);
}
if (data.Length == 0)
{
return(string.Empty);
}
int keyIndex = key;
string nonce = Utility.GenerateNonce(NONCE_LENGTH);
byte[] binaryNonce = Encoding.UTF8.GetBytes(nonce);
byte[] dataToEncrypt = Utility.MergeBytes(data, binaryNonce);
byte[] encrypted;
AESCryptor.Encrypt(ref keyIndex, ref dataToEncrypt, out encrypted);
string beEncrypted = StringTools.ToBase64String(encrypted);
beEncrypted = keyIndex + Utility.SEP + beEncrypted + Utility.SEP + nonce;
return(beEncrypted);
}
public void Write(Stream xOut, bool enc)
{
this.Body.Write(xOut);
if (xOut.Length % 16 != 0)
{
while (xOut.Length % 16 != 0)
{
xOut.WriteByte(0x70);
}
}
byte[] xoutBuf = new byte[xOut.Length];
xOut.Position = 0;
xOut.Read(xoutBuf, 0, xoutBuf.Length);
if (enc)
{
MemoryStream xMem = new MemoryStream(AESCryptor.Encrypt(xoutBuf, this.key));
xOut.SetLength(0);
xOut.Write(xMem.ToArray(), 0, (int)xMem.Length);
}
else
{
xOut.SetLength(0);
xOut.Write(xoutBuf, 0, xoutBuf.Length);
}
}
public void Test_Encrypt()
{
var result = AESCryptor.Encrypt("测试一下内容先", Key);
Output.WriteLine(result);
Assert.Equal("JWm0M2KzKwxe8ylzkfujgQkyEq+kG1ZVirENQqCl8BI=", result);
}
public void Test_EncryptIv()
{
string iv = InitIv(16);
Output.WriteLine(iv);
var result = AESCryptor.Encrypt("测试一下内容先", Key, Encoding.UTF8, iv, 256, 128, CipherMode.CBC,
PaddingMode.PKCS7);
Output.WriteLine(result);
Assert.Equal("JWm0M2KzKwxe8ylzkfujgV8i5XUnUaHOpY7MaND0Z3g=", result);
}
public static byte[] BinaryEncrypt(byte[] data, int you_know_what_is_this_key = 0)
{
if (data == null)
{
return(null);
}
if (data.Length == 0)
{
return(data);
}
int keyIndex = you_know_what_is_this_key;
byte[] encrypted;
AESCryptor.Encrypt(ref keyIndex, ref data, out encrypted);
return(encrypted);
}