/// <summary>
/// Sets or resets the encryption level for the encryption instance
/// </summary>
/// <param name="keysize">The encryption level as an CryptoLevel enum</param>
public void SetEncryptionLevel(CryptoLevel keysize = CryptoLevel.AES256)
{
// update the keySize property with the requested encryption level
KeySize = keysize;
// at this time we are utilizing hard-coded values
ConfigureCryptoInCode();
// convert the CryptoLevel to an integer to assist calculationg the crypto properties
m_encryptionBits = KeySize == CryptoLevel.AES256 ? 256 : KeySize == CryptoLevel.AES128 ? 128 : 0;
// initialize the IV array
iv_array = new byte[16];
// initialize the Key array
key_array = new byte[m_encryptionBits / 8];
// generate the Crypto Key and IV
// create the key and Initial Vector from the
OpenSslCompatDeriveBytes crap = new OpenSslCompatDeriveBytes(m_cryptoSalt, m_nonce, m_cryptoHash, m_cryptoIterations);
stuff_array = crap.GetBytes((m_encryptionBits / 8) + 16);
Buffer.BlockCopy(stuff_array, 0, key_array, 0, m_encryptionBits / 8);
Buffer.BlockCopy(stuff_array, m_encryptionBits / 8, iv_array, 0, 16);
}
/// <summary>
/// Sets or resets the encryption level for the encryption instance
/// </summary>
/// <param name="keysize">The encryption level as an CryptoLevel enum</param>
public static void SetEncryptionLevel(CryptoLevel keysize = CryptoLevel.AES256)
{
// update the keySize property with the requested encryption level
KeySize = keysize;
// at this time we are utilizing hard-coded values
ConfigureCryptoInCode();
// convert the CryptoLevel to an integer to assist calculationg the crypto properties
m_encryptionBits = KeySize == CryptoLevel.AES256 ? 256 : KeySize == CryptoLevel.AES128 ? 128 : 0;
// initialize the IV array
iv_array = new byte[16];
// initialize the Key array
key_array = new byte[m_encryptionBits / 8];
// generate the Crypto Key and IV
// create the key and Initial Vector from the
OpenSslCompatDeriveBytes crap = new OpenSslCompatDeriveBytes(m_cryptoSalt, m_nonce, m_cryptoHash, m_cryptoIterations);
stuff_array = crap.GetBytes((m_encryptionBits / 8) + 16);
Buffer.BlockCopy(stuff_array, 0, key_array, 0, m_encryptionBits / 8);
Buffer.BlockCopy(stuff_array, m_encryptionBits / 8, iv_array, 0, 16);
}
/// <summary>
/// Sets or resets the encryption level for the encryption instance
/// </summary>
/// <param name="keysize">The encryption level as an CryptoLevel enum</param>
public void InitializeEncryption(CryptoLevel aesize = CryptoLevel.AES256, String hash = "SHA1", Int16 iterations = 5, Int16 nonceLength = 8, String salt = "", String nonce = "")
{
KeySize = aesize;
m_cryptoHash = hash;
m_cryptoIterations = iterations;
NonceLength = nonceLength;
// if a salt and a nonce have been provided use them:
if (!String.IsNullOrWhiteSpace(salt) && !String.IsNullOrWhiteSpace(nonce))
{
Nonce = Encoding.ASCII.GetBytes(nonce);
CryptoSalt = salt;
}
//otherwise; use the calculated nonce and salt values
// initialize the IV array
iv_array = new byte[16];
// initialize the Key array
key_array = new byte[m_encryptionBits / 8];
// generate the Crypto Key and IV
// create the key and Initial Vector from the
OpenSslCompatDeriveBytes crap = new OpenSslCompatDeriveBytes(CryptoSalt, Nonce, CryptoHash, CryptoIterations);
stuff_array = crap.GetBytes((m_encryptionBits / 8) + 16);
Buffer.BlockCopy(stuff_array, 0, key_array, 0, m_encryptionBits / 8);
Buffer.BlockCopy(stuff_array, m_encryptionBits / 8, iv_array, 0, 16);
}
