ds.ov2.test
Class Performance_mult_card

java.lang.Object
  ds.ov2.test.Performance_mult_card

public class Performance_mult_card
extends Object

Card/applet methods for testing Montgomery multiplication, demontgomerization and division.

Execution Environment:

card

Author:

Hendrik Tews

Version:

$Revision: 1.10 $

Last Commit:

$Date: 2009-06-02 13:27:57 $ by $Author: tews $

Constructor Summary

Performance_mult_card()
Empty constructor.

Method Summary

void	demontgomerize(Bignat n, Modulus m, Bignat result, short rounds) Test Demontgomerization.
void	mont_mult(Bignat fac_1, Bignat fac_2, Modulus m, Bignat result, short rounds) Test Montgomery multiplication.
void	remainder_divide(Bignat divident, Bignat divisor, Bignat remainder, Bignat result, short rounds) Test division and remainder.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Performance_mult_card

public Performance_mult_card()

Empty constructor.

Method Detail

mont_mult

public void mont_mult(Bignat fac_1,
                      Bignat fac_2,
                      Modulus m,
                      Bignat result,
                      short rounds)

Test Montgomery multiplication. Perform rounds calls to Bignat.montgomery_mult.

Parameters:

fac_1 - first factor

fac_2 - second factor

m - modulus

result - result reference

rounds - number of multiplication rounds

demontgomerize

public void demontgomerize(Bignat n,
                           Modulus m,
                           Bignat result,
                           short rounds)

Test Demontgomerization. Perform rounds calls to Bignat.demontgomerize.

Parameters:

n - number to demontgomerize

m - modulus

result - result reference

rounds - number of demontgomerization rounds

remainder_divide

public void remainder_divide(Bignat divident,
                             Bignat divisor,
                             Bignat remainder,
                             Bignat result,
                             short rounds)

Test division and remainder. Perform rounds calls to Bignat.remainder_divide.

Parameters:

divident - divident argument

divisor - divisor argument

remainder - reference for the remainder result

result - reference for the quotient result (may be null)

rounds - number of division rounds