public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant)
{
lock (this)
{
lazyInitDRBG();
if (predictionResistant)
{
// FSM_STATE:5.7, "DRBG RESEED HEALTH CHECK", "The module is performing DRBG Reseed Health Check self-test"
// FSM_TRANS:5.7, "CONDITIONAL TEST", "DRBG RESEED HEALTH CHECKS", "Invoke DRBG Reseed Health Check"
SelfTestExecutor.Validate(algorithm, drbg.CreateReseedSelfTest(algorithm)); // reseed health test
// FSM_TRANS:5.8, "DRBG RESEED HEALTH CHECKS", "CONDITIONAL TEST", "DRBG Reseed Health Check successful"
}
// check if a reseed is required...
if (drbg.Generate(output, additionalInput, predictionResistant) < 0)
{
// FSM_STATE:5.7, "DRBG RESEED HEALTH CHECK", "The module is performing DRBG Reseed Health Check self-test"
// FSM_TRANS:5.7, "CONDITIONAL TEST", "DRBG RESEED HEALTH CHECKS", "Invoke DRBG Reseed Health Check"
SelfTestExecutor.Validate(algorithm, drbg.CreateReseedSelfTest(algorithm)); // reseed health test
// FSM_TRANS:5.8, "DRBG RESEED HEALTH CHECKS", "CONDITIONAL TEST", "DRBG Reseed Health Check successful"
drbg.Reseed(null);
return(drbg.Generate(output, additionalInput, predictionResistant));
}
return(output.Length);
}
}
public override void NextBytes(byte[] bytes)
{
lock (drbg)
{
// check if a reseed is required...
if (drbg.Generate(bytes, null, predictionResistant) < 0)
{
drbg.Reseed(null);
drbg.Generate(bytes, null, predictionResistant);
}
}
}
public void Reseed(byte[] additionalInput)
{
CryptoStatus.IsReady();
lock (this)
{
block = new byte[0];
nextBlock = new byte[0];
drbg.Reseed(additionalInput);
}
}