🛠️

Eduard Iskandarov ediskandarov

🛠️

Entrepreneurial engineer, 🐍. Full-stack development, DevOps, Security. Building software, teams and startups.

ediskandarov / node-cades-verify-signature.js

Created April 9, 2023 18:29

node cades script example that verifies attached signature

	// Compile node module first `https://github.com/boriborm/cryptopro-node-cades`

	const fs = require("node:fs");
	const cades = require("./NodeCades");

	const signedData = new cades.SignedData();
	const message = fs.readFileSync("message.txt", { encoding: "utf-8" });
	signedData.content = message; // string

	const signatureRaw = fs.readFileSync("message.txt.sig"); // buffer

ediskandarov / cades.html

Created April 9, 2023 17:44

cades plugin by CryptoPro. Signature creation and verification

	<!DOCTYPE html>
	<html lang="ru">
	<head>
	<meta charset="utf-8" />
	<title>Проверки подписи</title>
	<script language="javascript" src="cadesplugin_api.js"></script>

	<script>
	const { cadesplugin } = window;
	class Certificate {

ediskandarov / pycades-verify-signature.py

Created April 9, 2023 17:43

pycades script example that verifies attached signature

	import pycades

	signed_data = pycades.SignedData()

	with open('message.txt') as f:
	msg = f.read()
	signed_data.Content = msg

	with open('message.txt.sig') as f:
	signature_raw = f.read()

ediskandarov / coding-challenge.py

Created July 20, 2021 07:06

	# Given an unsorted array, leftSum is defined as sum of all elements to the left of an element including the element
	# and rightSum is defined as sum of all elements to the right of an element.
	#
	# Write a function that returns the minimum absolute difference between leftSum and rightSum.
	#
	# Example:
	#
	# Input: arr = [3,1,2,4,3]
	# Output: 1
	# Explanation:

ediskandarov / test-sns-sqs-publish-consume.py

Created January 14, 2021 05:08

A simple python script remonstrates SQS message consumption which was published to SNS

ediskandarov / hello.go

Created April 2, 2019 18:07

Golang hello world

ediskandarov / hex_to_str.py

Last active September 20, 2018 11:59 — forked from 0x63lv/hex_to_str.py

Script to convert Grafana SQLite dumps into PostgreSQL compatible dumps, and import it into PostgreSQL

	#!/bin/env python

	import fileinput
	import re
	import binascii

	for line in fileinput.input(inplace = 1):
	if re.search('X\'([a-fA-F0-9]+)\'', line) is not None:
	unhexed_string = binascii.unhexlify(re.search('X\'([a-fA-F0-9]+)\'', line).group(1))
	unhexed_string = unhexed_string.replace("'", "''")

ediskandarov / gist:fb494224ad781ec41c913e6718281966

Created September 20, 2018 05:29

Fetch a file from remote sever when there is no ssh or any other access

	$ # compress a file and encode it in base64 format
	$ gzip -k -c grafana.db \| base64 - > grafana.db.gz.base64
	$ # calculate md5 sum
	$ md5sum grafana.db.gz.base64


	$ # calculate md5 sum and compare results
	$ md5sum grafana.db.gz.base64
	$ # to decompress, reverse actions
	$ base64 -D grafana.db.gz.base64 \| gunzip > grafana.db

ediskandarov / grab_vimeo.py

Created March 17, 2017 19:53

Snippet to download private vimeo content

	# -- coding: utf-8 --
	from __future__ import unicode_literals

	import shutil
	import sys
	from urlparse import urljoin

	import requests

ediskandarov / fields.py

Created February 25, 2013 11:10

django.forms.fields widget initialization

	import time
	import boto3

	sns_client = boto3.client("sns", region_name='eu-central-1')
	sqs_client = boto3.client("sqs", region_name="eu-central-1")

	sns_client.publish(
	TopicArn='arn:aws:sns:eu-central-1:386635533411:enveloped',
	Message='test message',
	MessageAttributes={