public static SymmetricKey GenerateKey(SymmetricAlgorithmType symmetricAlgorithmType, SymmetricKeySize keySize = defaultKeySize, SymmetricBlockSize blockSize = defaultBlockSize)
{
var(symmetricAlgorithm, _) = GetAlgorithm(symmetricAlgorithmType);
symmetricAlgorithm.KeySize = (int)keySize;
symmetricAlgorithm.BlockSize = (int)blockSize;
symmetricAlgorithm.GenerateKey();
symmetricAlgorithm.GenerateIV();
var symmetricKey = new SymmetricKey(symmetricAlgorithm.Key, symmetricAlgorithm.IV);
return(symmetricKey);
}
public static SymmetricKey GetKey(string password, string salt = null, SymmetricKeySize keySize = defaultKeySize, SymmetricBlockSize blockSize = defaultBlockSize)
{
var saltBytes = SaltFromPassword(password, salt);
using (var deriveBytes = new Rfc2898DeriveBytes(password, saltBytes))
{
var keySizeValue = (int)keySize;
var blockSizeValue = (int)blockSize;
var keyBytes = deriveBytes.GetBytes(keySizeValue / 8);
var ivBytes = deriveBytes.GetBytes(blockSizeValue / 8);
var symmetricKey = new SymmetricKey(keyBytes, ivBytes);
return(symmetricKey);
}
}
