ds.ov2.test
Class Card_performance

java.lang.Object
  ds.ov2.test.Card_performance

 class Card_performance
extends Object

Performance measurements for the protocol layer.

CPP Preprocessing

no cpp preprocessing needed

Execution Environment:

host

Author:

Hendrik Tews

Version:

$Revision: 1.16 $

Last Commit:

$Date: 2009-06-02 13:27:56 $ by $Author: tews $

Field Summary

private CardChannel	card_channel Channel to the applet.
private Check_data_transmission	check_transmission Instance for data transmission checks.
private Data_protocol_host	data_host Host driver instance for the data protocol.
private Misc_protocols_host	misc_host Host instance for the miscellaneous protocols.
private PrintWriter	out Channel for writing progress and debug messages.
private Data_protocol_stubs	stubs Stubs for the data protocol.

Constructor Summary

Card_performance(Test_protocols test_protocols, CardChannel card_channel)
Constructor.

Method Summary

void	measure_big_send_and_receive() Measure sending 10KB and receiving 10KB and print the timings.
void	measure_ping() Measure 10 rounds of the ping protocol and print maximal, minimal and everage timings.
void	measure_proof() Measure data transmission with sizes as we expect for the proof protocol for an RSA key size of 2048 bits.
void	measure_receive() Measure receiving data from the card.
void	measure_send() Measure sending data to the card.
void	run_ex() Run all data transmission performance measurements.
void	run() Exception wrapper for run_ex().

Methods inherited from class java.lang.Object

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

Field Detail

out

private PrintWriter out

Channel for writing progress and debug messages.

misc_host

private Misc_protocols_host misc_host

Host instance for the miscellaneous protocols. Needed for accessing the ping protocol.

data_host

private Data_protocol_host data_host

Host driver instance for the data protocol.

check_transmission

private Check_data_transmission check_transmission

Instance for data transmission checks.

stubs

private Data_protocol_stubs stubs

Stubs for the data protocol.

card_channel

private CardChannel card_channel

Channel to the applet.

Constructor Detail

Card_performance

public Card_performance(Test_protocols test_protocols,
                        CardChannel card_channel)

Constructor. Initialize all fields.

Parameters:

test_protocols - protocol array of the test host driver

card_channel - channel to the applet

Method Detail

measure_ping

public void measure_ping()
                  throws CardException

Measure 10 rounds of the ping protocol and print maximal, minimal and everage timings.

Throws:

CardChannel - on communication errors

CardException

measure_send

public void measure_send()
                  throws CardException

Measure sending data to the card. Measures 10 times sending 2KB (2048 Bytes) and prints the timings.

The measurement is slightly biased, because the data is written to EEPROM on the card.

Throws:

CardException - on communication errors

To Do:

Measure transmission time to RAM as well

measure_receive

public void measure_receive()
                     throws CardException

Measure receiving data from the card. Measures 10 times receiving 2KB (2048 Bytes) from the card and prints the timings.

The measurement is slightly biased, because the data is written to EEPROM on the card.

Throws:

CardException - on communication errors

To Do:

Measure transmission time to RAM as well

measure_big_send_and_receive

public void measure_big_send_and_receive()
                                  throws CardException,
                                         Data_protocol_host.Data_error

Measure sending 10KB and receiving 10KB and print the timings.

The measurement is slightly biased, because the data is written to EEPROM on the card.

Throws:

Data_protocol_host.Data_error - never thrown, because the transmission is done with performance flag set to true; only declared to satisfy the compiler

CardException - on communication errors

To Do:

Measure transmission time to RAM as well

measure_proof

public void measure_proof()
                   throws CardException

Measure data transmission with sizes as we expect for the proof protocol for an RSA key size of 2048 bits.

The size used in this method represent the expectations from August 2008, long before the proof protocol has been implemented.

The measurement is slightly biased, because the data is written to EEPROM on the card.

Throws:

CardException - on communication errors

To Do:

Measure transmission time to RAM as well

run_ex

public void run_ex()
            throws CardException,
                   Data_protocol_host.Data_error

Run all data transmission performance measurements.

Throws:

Data_protocol_host.Data_error - never thrown, because the transmission is done with performance flag set to true; only declared to satisfy the compiler

CardException - on communication errors

run

public void run()

Exception wrapper for run_ex(). Runs all the data transmission performance measurements and prints escaping exceptions.