net.i2p.crypto
Class YKGenerator
java.lang.Object
net.i2p.crypto.YKGenerator
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. By default, the minimum threshold for creating
new values for the pool is 20, and the max pool size is 50. 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
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PROP_YK_PRECALC_MIN
public static final String PROP_YK_PRECALC_MIN
- See Also:
- Constant Field Values
PROP_YK_PRECALC_MAX
public static final String PROP_YK_PRECALC_MAX
- See Also:
- Constant Field Values
PROP_YK_PRECALC_DELAY
public static final String PROP_YK_PRECALC_DELAY
- See Also:
- Constant Field Values
DEFAULT_YK_PRECALC_MIN
public static final int DEFAULT_YK_PRECALC_MIN
- See Also:
- Constant Field Values
DEFAULT_YK_PRECALC_MAX
public static final int DEFAULT_YK_PRECALC_MAX
- See Also:
- Constant Field Values
DEFAULT_YK_PRECALC_DELAY
public static final int DEFAULT_YK_PRECALC_DELAY
- See Also:
- Constant Field Values
YKGenerator
public YKGenerator(I2PAppContext context)
shutdown
public void shutdown()
- Note that this stops the precalc thread
and it cannot be restarted.
- Since:
- 0.8.8
getNextYK
public BigInteger[] getNextYK()
- Returns:
- rv[0] = Y; rv[1] = K