Package net.i2p.crypto

Class YKGenerator

java.lang.Object
net.i2p.crypto.YKGenerator
final class YKGenerator extends Object
Precalculate the Y and K for ElGamal encryption operations. This class precalcs a set of values on its own thread, using those transparently when a new instance is created. Whenever the pool has less than the minimum, it fills it up again to the max. There is a delay after each precalculation so that the CPU isn't hosed during startup. These three parameters are controlled by java environmental variables and can be adjusted via: -Dcrypto.yk.precalc.min=40 -Dcrypto.yk.precalc.max=100 -Dcrypto.yk.precalc.delay=60000 (delay is milliseconds) To disable precalculation, set min to 0
Author:
jrandom

  • Field Details

  • Constructor Details

    • YKGenerator

      public YKGenerator(I2PAppContext context)
      Caller must also call start() to start the background precalc thread. Unit tests will still work without calling start().

  • Method Details

    • start

      public void start()
      Start the background precalc thread. Must be called for normal operation. If not called, all generation happens in the foreground. Not required for unit tests.
      Since:
      0.9.14

    • shutdown

      public void shutdown()
      Stop the background precalc thread. Can be restarted. Not required for unit tests.
      Since:
      0.8.8

    • getNextYK

      public BigInteger[] getNextYK()
      Returns:
      rv[0] = Y; rv[1] = K