private void ProcessBlock(int bytes)
{
// set the key to the current state
m_blockCipher.SetKey(m_digestState);
// update tweak
m_ubiParameters.BitsProcessed += (long)bytes;
m_blockCipher.SetTweak(m_ubiParameters.Tweak);
// encrypt block
m_blockCipher.Encrypt(m_cipherInput, m_digestState);
// feed-forward input with state
for (int i = 0; i < m_cipherInput.Length; i++)
{
m_digestState[i] ^= m_cipherInput[i];
}
}
/// <remarks>
/// Default generation function
/// </remarks>
private void GenerateConfiguration()
{
Threefish512 cipher = new Threefish512();
UbiTweak tweak = new UbiTweak();
// initialize the tweak value
tweak.StartNewBlockType(UbiType.Config);
tweak.IsFinalBlock = true;
tweak.BitsProcessed = 32;
cipher.SetTweak(tweak.Tweak);
cipher.Encrypt(m_configString, m_configValue);
m_configValue[0] ^= m_configString[0];
m_configValue[1] ^= m_configString[1];
m_configValue[2] ^= m_configString[2];
}
/// <remarks>
/// Default generation function
/// </remarks>
private void GenerateConfiguration()
{
var cipher = new Threefish512();
var tweak = new UbiTweak();
// Initialize the tweak value
tweak.StartNewBlockType(UbiType.Config);
tweak.IsFinalBlock = true;
tweak.BitsProcessed = 32;
cipher.SetTweak(tweak.Tweak);
cipher.Encrypt(ConfigString, ConfigValue);
ConfigValue[0] ^= ConfigString[0];
ConfigValue[1] ^= ConfigString[1];
ConfigValue[2] ^= ConfigString[2];
}
