Sergey Semushin kezzyhko

## Contiki EA comparison logs
Logs of simulations of different crypto algorithms integrated in Contiki
* Github repo with simulation code: https://github.com/kezzyhko/Contiki_EA_comparison
* Comparison table: https://docs.google.com/spreadsheets/d/1QjzWGqsHzynjnElhdrYRoawbSOMHYTp6z6I9W2rAc4Y
* `log_parser.py` is the python script used for parsing logs and getting the raw data
* Names of the log files are in form of `logs_ALG_BL_KL`, where `ALG` is the name of the algorithm, `BL` is a block length and `KL` is the key length

## file_client.py
import socket
import sys
import os


# check arguments
def assert_(cond, message = None, print_help=True):
	if (not cond):
		if (message):
			print()

## p_q_e_to_pem.py
# This code is compilation of
# 1) code from
# https://0day.work/how-i-recovered-your-private-key-or-why-small-keys-are-bad/
# 2) modified version of code snippet from crypto stackexchange
# https://crypto.stackexchange.com/a/25499

# This code does not perform any checks on p, q and e and can give wrong result
# or throw not informative exception if p, q and/or e are not valid.

import pyasn1.codec.der.encoder

## rsa_common_modulus_attack.py
# Some parts of this code is taken from
# https://0day.work/how-i-recovered-your-private-key-or-why-small-keys-are-bad/

from Crypto.PublicKey import RSA
from base64 import b64decode
from binascii import unhexlify


# load keys (n, e1, e2)

## GitHub_to_php_deploy.php
<?php


// constants

define('WEBHOOK_SECRET', 'https://youtu.be/dQw4w9WgXcQ');
define('REPOSITORY_FULL_NAME', 'user/repo');
define('SSH_HOST', 'github_key1'); # see https://gist.github.com/kezzyhko/734b83a763c1feb6f38fdf096800718f
define('WEBROOT_SYMLINC', '/home/user/app');

## .ssh config
# An example of git ssh configuration for using different keys with the same host
# You should put this file in ~/.ssh/config
# And change IdentityFile to the paths to your keys
# After that, you can use the keys like that:
# git clone ssh://github_key1/user/repo1.git
# git clone ssh://github_key2/user/repo2.git

Host github_key1
    HostName github.com
    User git

## Calculator: The Game bruteforce.php
<?php
echo '<pre>';
define('start_num', 100);
define('end_num', 101);
define('moves', 5);
define('functions', explode(' ', '0 x2 2=>10 0=>1 Reverse'));

function check($current_num, $moves_left=moves, $history='') {
	if ($current_num == end_num) {
		echo $history;

## Lowercase_base64_restore.php
<?php

//$s1 = 'sw5mb3jtyxrpb24gd2fudhmgdg8gymugsw5ub0nurntmcjmzxzfuzjbybtq3mtbufsbmcmvlica=';
//$s2 = 'u1c1bwizsnrzwfjwyji0z2qyrnvkse1nzec4z1ltvwdtvzv1yjbovvjudg1jak16whpgdvpqqnlivfeztvrcdwztqm1jbvzssunbpq==';

//$s1 == strtolower(base64_encode($secret))
//$s2 == strtolower(base64_encode(base64_encode($secret)))
//return $secret

function restore_base64($s1, $s2) {

## moodle_bruteforce_profiles.php
<?php

set_time_limit(0);
define('COOKIES', [
	'MoodleSession' => 'lz7udac381k24ot9i6d7e7zdmf' //of course, you need to change this to you auth token
]);
define('URL', 'https://moodle.example.com/user/profile.php?id=%d'); //and change this to your moodle address

$context = stream_context_create(['http' => [
	'method' => 'GET',

## interserver.php
<pre><?php
ini_set('max_execution_time', '0');
$sock = fsockopen("olymp.hackforces.com:9000");

while ($in = fgets($sock)) {
	echo "$in";

	$out = strrev($in);

	//fwrite($sock, "$out\n");
	Logs of simulations of different crypto algorithms integrated in Contiki
	* Github repo with simulation code: https://github.com/kezzyhko/Contiki_EA_comparison
	* Comparison table: https://docs.google.com/spreadsheets/d/1QjzWGqsHzynjnElhdrYRoawbSOMHYTp6z6I9W2rAc4Y
	* `log_parser.py` is the python script used for parsing logs and getting the raw data
	* Names of the log files are in form of `logs_ALG_BL_KL`, where `ALG` is the name of the algorithm, `BL` is a block length and `KL` is the key length
	import socket
	import sys
	import os


	# check arguments
	def assert_(cond, message = None, print_help=True):
	if (not cond):
	if (message):
	print()
	# This code is compilation of
	# 1) code from
	# https://0day.work/how-i-recovered-your-private-key-or-why-small-keys-are-bad/
	# 2) modified version of code snippet from crypto stackexchange
	# https://crypto.stackexchange.com/a/25499

	# This code does not perform any checks on p, q and e and can give wrong result
	# or throw not informative exception if p, q and/or e are not valid.

	import pyasn1.codec.der.encoder
	# Some parts of this code is taken from
	# https://0day.work/how-i-recovered-your-private-key-or-why-small-keys-are-bad/

	from Crypto.PublicKey import RSA
	from base64 import b64decode
	from binascii import unhexlify



	# load keys (n, e1, e2)
	<?php



	// constants

	define('WEBHOOK_SECRET', 'https://youtu.be/dQw4w9WgXcQ');
	define('REPOSITORY_FULL_NAME', 'user/repo');
	define('SSH_HOST', 'github_key1'); # see https://gist.github.com/kezzyhko/734b83a763c1feb6f38fdf096800718f
	define('WEBROOT_SYMLINC', '/home/user/app');
	# An example of git ssh configuration for using different keys with the same host
	# You should put this file in ~/.ssh/config
	# And change IdentityFile to the paths to your keys
	# After that, you can use the keys like that:
	# git clone ssh://github_key1/user/repo1.git
	# git clone ssh://github_key2/user/repo2.git

	Host github_key1
	HostName github.com
	User git
	<?php
	echo '<pre>';
	define('start_num', 100);
	define('end_num', 101);
	define('moves', 5);
	define('functions', explode(' ', '0 x2 2=>10 0=>1 Reverse'));

	function check($current_num, $moves_left=moves, $history='') {
	if ($current_num == end_num) {
	echo $history;
	<?php

	//$s1 = 'sw5mb3jtyxrpb24gd2fudhmgdg8gymugsw5ub0nurntmcjmzxzfuzjbybtq3mtbufsbmcmvlica=';
	//$s2 = 'u1c1bwizsnrzwfjwyji0z2qyrnvkse1nzec4z1ltvwdtvzv1yjbovvjudg1jak16whpgdvpqqnlivfeztvrcdwztqm1jbvzssunbpq==';

	//$s1 == strtolower(base64_encode($secret))
	//$s2 == strtolower(base64_encode(base64_encode($secret)))
	//return $secret

	function restore_base64($s1, $s2) {
	<?php

	set_time_limit(0);
	define('COOKIES', [
	'MoodleSession' => 'lz7udac381k24ot9i6d7e7zdmf' //of course, you need to change this to you auth token
	]);
	define('URL', 'https://moodle.example.com/user/profile.php?id=%d'); //and change this to your moodle address

	$context = stream_context_create(['http' => [
	'method' => 'GET',
	<pre><?php
	ini_set('max_execution_time', '0');
	$sock = fsockopen("olymp.hackforces.com:9000");

	while ($in = fgets($sock)) {
	echo "$in";

	$out = strrev($in);

	//fwrite($sock, "$out\n");