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Going back to the basics, really. Words on the printed page.

Koshik Raj koshikraj

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Going back to the basics, really. Words on the printed page.
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@kitek
kitek / gist:1579117
Created January 8, 2012 17:50
NodeJS create md5 hash from string
var data = "do shash'owania";
var crypto = require('crypto');
crypto.createHash('md5').update(data).digest("hex");
@rxaviers
rxaviers / gist:7360908
Last active April 16, 2024 03:50
Complete list of github markdown emoji markup

People

:bowtie: :bowtie: 😄 :smile: 😆 :laughing:
😊 :blush: 😃 :smiley: ☺️ :relaxed:
😏 :smirk: 😍 :heart_eyes: 😘 :kissing_heart:
😚 :kissing_closed_eyes: 😳 :flushed: 😌 :relieved:
😆 :satisfied: 😁 :grin: 😉 :wink:
😜 :stuck_out_tongue_winking_eye: 😝 :stuck_out_tongue_closed_eyes: 😀 :grinning:
😗 :kissing: 😙 :kissing_smiling_eyes: 😛 :stuck_out_tongue:
@gavinandresen
gavinandresen / BlockPropagation.md
Last active March 14, 2023 09:45
O(1) block propagation

O(1) Block Propagation

The problem

Bitcoin miners want their newly-found blocks to propagate across the network as quickly as possible, because every millisecond of delay increases the chances that another block, found at about the same time, wins the "block race."

@i3visio
i3visio / hashcash.py
Created August 9, 2016 21:27
hashcash.py is a clean implementation of a "proof of work" library for Python.
# ----------------------------------------------
# hashcash.py: Hashcash implementation
# ----------------------------------------------
"""
Hashcash is a "proof of work."
Example:
>>> import sha
>>> sha.new('denmark2890CF').hexdigest() '000000cf89643370c24e413ec0886ab92bd7f6e8'
@maheshmurthy
maheshmurthy / Voting.sol
Last active June 6, 2023 21:20
Simple solidity contract to vote for a candidate and see the results
pragma solidity ^0.6.4;
// We have to specify what version of compiler this code will compile with
contract Voting {
/* mapping field below is equivalent to an associative array or hash.
The key of the mapping is candidate name stored as type bytes32 and value is
an unsigned integer to store the vote count
*/
mapping (bytes32 => uint256) public votesReceived;
@mcattarinussi
mcattarinussi / gpg-ssh-setup.md
Last active April 9, 2024 02:09
A setup guide to use a personal gpg key for ssh authentication

GPG - SSH setup

Generating the master key

Here we create the master key. We want only Certify capability: we use the master key only to create the subkeys, Sign - Encrypt - Authenticate capabilities will be assigned to the subkeys.

Run the following command to start the master key generation process. Select the set your own capabilities creation process (type 8)

  ▶ gpg --full-generate-key --expert

gpg (GnuPG) 2.2.9; Copyright (C) 2018 Free Software Foundation, Inc.

@giladHaimov
giladHaimov / BasicERC20.sol
Last active March 19, 2024 20:03
Basic ERC20 implementation
pragma solidity ^0.4.19;
contract ERC20Basic {
string public constant name = "ERC20Basic";
string public constant symbol = "BSC";
uint8 public constant decimals = 18;
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
@damouse
damouse / nginx.conf
Last active January 9, 2024 18:26
Nginx wss reverse proxy on the back of letsencrypt
user www-data;
worker_processes auto;
pid /run/nginx.pid;
events {
worker_connections 768;
}
http {
sendfile on;