pekko/akka-remote/src/main/scala/akka/remote/security/provider/AES256CounterSecureRNG.scala
Patrik Nordwall 323e5c80b5 Polish the API/SPI of remoting, see #2827
* Changed TransportAdapterProvider to support java impl
* Verified java impl of AbstractTransportAdapter and
  ActorTransportAdapter
* Privatized things that should not be public api
* Consistent usage of INTERNAL API marker in scaladoc
* Added some missing doc in conf
* Added missing SerialVersionUID
2013-02-10 17:47:43 +01:00

43 lines
1.4 KiB
Scala

/**
* Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
*/
package akka.remote.security.provider
import org.uncommons.maths.random.{ AESCounterRNG, SecureRandomSeedGenerator }
import SeedSize.Seed256
/**
* INTERNAL API
* This class is a wrapper around the 256-bit AESCounterRNG algorithm provided by http://maths.uncommons.org/
* The only method used by netty ssl is engineNextBytes(bytes)
* This RNG is good to use to prevent startup delay when you don't have Internet access to random.org
*/
class AES256CounterSecureRNG extends java.security.SecureRandomSpi {
/**Singleton instance. */
private final val Instance: SecureRandomSeedGenerator = new SecureRandomSeedGenerator
private val rng = new AESCounterRNG(engineGenerateSeed(Seed256))
/**
* This is managed internally by AESCounterRNG
*/
override protected def engineSetSeed(seed: Array[Byte]): Unit = ()
/**
* Generates a user-specified number of random bytes.
*
* @param bytes the array to be filled in with random bytes.
*/
override protected def engineNextBytes(bytes: Array[Byte]): Unit = rng.nextBytes(bytes)
/**
* Unused method
* Returns the given number of seed bytes. This call may be used to
* seed other random number generators.
*
* @param numBytes the number of seed bytes to generate.
* @return the seed bytes.
*/
override protected def engineGenerateSeed(numBytes: Int): Array[Byte] = Instance.generateSeed(numBytes)
}