ds.ov2.front
Class State

java.lang.Object
  ds.ov2.front.State

public class State
extends Object

Static global state class for the host driver code for the OV-chip RSA applets. The parameters here are always needed for the OV-chip front office. More parameters that are only needed in the test frames are in Test_state.

Execution Environment:

host

Author:

Hendrik Tews

Version:

$Revision: 1.14 $

Last Commit:

$Date: 2010-03-12 15:40:20 $ by $Author: tews $

Field Summary

static Reference<Integer>	attribute_number Number of attributes.
static Reference<Integer>	base_length Length of the bases and the RSA key in bits.
static Reference<Boolean>	base_length_set Whether base_length has been set by the user.
static Reference<Integer>	exponent_length Length of the attributes and other exponents in bits.
static Reference<Boolean>	exponent_length_set True if exponent_length has been set by the user.
static Reference<Security_parameter.Calibration>	security_calibration Calibration data to use for the Security_parameter methods.
static int	security_year Year for choosing the security parameter.

Constructor Summary

protected

State() Static class, object creation disabled.

Method Summary

static int	make_exponent_length(int base_length) Computes an exponent length that matches the base_length argument.
static void	update_exponent_length() Update exponent_length to match a (supposedly) changed base_length.

Methods inherited from class java.lang.Object

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

Field Detail

security_year

public static int security_year

Year for choosing the security parameter. See Security_parameter.exponent_length_for_modulus_length.

security_calibration

public static Reference<Security_parameter.Calibration> security_calibration

Calibration data to use for the Security_parameter methods. Set to Security_parameter.rsa_768_break_2009 by option -768.

base_length_set

public static Reference<Boolean> base_length_set

Whether base_length has been set by the user.

base_length

public static Reference<Integer> base_length

Length of the bases and the RSA key in bits. This is the pure number size, without counting any Mongomery digits.

exponent_length

public static Reference<Integer> exponent_length

Length of the attributes and other exponents in bits.

exponent_length_set

public static Reference<Boolean> exponent_length_set

True if exponent_length has been set by the user.

attribute_number

public static Reference<Integer> attribute_number

Number of attributes.

Constructor Detail

State

protected State()

Static class, object creation disabled.

Method Detail

make_exponent_length

public static int make_exponent_length(int base_length)

Computes an exponent length that matches the base_length argument.

Parameters:

base_length - length of the base in bits

Returns:

exponent length in bits

update_exponent_length

public static void update_exponent_length()

Update exponent_length to match a (supposedly) changed base_length.