public string Encrypt(string plainString)
{
var plainBytes = BytesHelper.GetUTF8StringBytes(plainString);
var secureHeadAndBytes = Encrypt(plainBytes);
return(secureHeadAndBytes != null?Convert.ToBase64String(secureHeadAndBytes) : null);
}
//class
private static byte[] SaltString(string data, string salt, uint saltIterations, uint bytesCount)
{
byte[] saltedBytes = null;
Rfc2898DeriveBytes deriveBytes = null;
try
{
deriveBytes = new Rfc2898DeriveBytes(data, BytesHelper.GetUTF8StringBytes(salt), (int)saltIterations);
saltedBytes = deriveBytes.GetBytes((int)bytesCount);
}
catch (Exception)
{
saltedBytes = null;
}
finally
{
if (deriveBytes is IDisposable &&
deriveBytes != null)
{
((IDisposable)deriveBytes).Dispose();
deriveBytes = null;
}
}
return(saltedBytes);
}
//instance
public SecureHead(
string salt,
string initiaVector,
uint saltIterations,
uint saltedInitiaVectorBytesCount,
uint saltedPasswordBytesCount,
uint secureBytesCount)
{
if (string.IsNullOrEmpty(initiaVector) == true)
{
throw new ArgumentException("initiaVector should NOT be null or empty.");
}
if (string.IsNullOrEmpty(salt) == true)
{
throw new ArgumentException("salt should NOT be null or empty.");
}
if (saltIterations == 0)
{
throw new ArgumentException("saltIterations should NOT zero.");
}
if (saltedInitiaVectorBytesCount == 0)
{
throw new ArgumentException("saltedInitiaVectorBytesCount should NOT zero.");
}
if (saltedPasswordBytesCount == 0)
{
throw new ArgumentException("saltedPasswordBytesCount should NOT zero.");
}
saltBytes = BytesHelper.GetUTF8StringBytes(salt);
initiaVectorBytes = BytesHelper.GetUTF8StringBytes(initiaVector);
SaltBytesCount = (saltBytes != null) ? (uint)saltBytes.Length : 0;
InitiaVectorBytesCount = (initiaVectorBytes != null) ? (uint)initiaVectorBytes.Length : 0;
Salt = salt;
InitiaVector = initiaVector;
SaltIterations = saltIterations;
SaltedInitialVectorBytesCount = saltedInitiaVectorBytesCount;
SaltedPasswordBytesCount = saltedPasswordBytesCount;
SecureBytesCount = secureBytesCount;
TotalBytesCount = (uint)(GetPart1BytesCount() + GetPart2BytesCount() + SaltBytesCount + InitiaVectorBytesCount);
}
