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@epixoip
epixoip / 8x1080.md
Last active May 5, 2026 12:16
8x Nvidia GTX 1080 Hashcat Benchmarks
@kkirsche
kkirsche / aes256-gcm.go
Last active November 12, 2024 02:47
AES-256 GCM Encryption Example in Golang
package example_test
import (
"crypto/aes"
"crypto/cipher"
"hex"
"io"
)
// AES-GCM should be used because the operation is an authenticated encryption
@beveradb
beveradb / AES-CTR-256-Example.cs
Created October 12, 2015 21:38
Example AES CTR 256 bit encryption with no IV in C#
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Engines;
using Org.BouncyCastle.Crypto.Modes;
using Org.BouncyCastle.Crypto.Paddings;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities.Encoders;
using System;
using System.Globalization;
using System.Security.Cryptography;
@mfuerstenau
mfuerstenau / zigzag-encoding.README
Last active April 15, 2026 16:39
ZigZag encoding/decoding explained
ZigZag-Encoding
---------------
Maps negative values to positive values while going back and
forth (0 = 0, -1 = 1, 1 = 2, -2 = 3, 2 = 4, -3 = 5, 3 = 6 ...)
(i >> bitlength-1) ^ (i << 1)
with "i" being the number to be encoded, "^" being
XOR-operation and ">>" would be arithemtic shifting-operation
@dharmatech
dharmatech / pse-p4.11.md
Last active November 10, 2023 01:24

Let's solve the following physics problem using Symbolism, a computer algebra library for C#.

One strategy in a snowball fight is to throw a first snowball at a high angle over level ground. While your opponent is watching the first one, you throw a second one at a low angle and timed to arrive at your opponent before or at the same time as the first one.

Assume both snowballs are thrown with a speed of 25.0 m/s.

The first one is thrown at an angle of 70.0° with respect to the horizontal.

@TheSeamau5
TheSeamau5 / HackerNewsExample.elm
Last active September 23, 2018 00:24
Hacker news requests example
--------------------------
-- CORE LIBRARY IMPORTS --
--------------------------
import Task exposing (Task, ThreadID, andThen, sequence, succeed, spawn)
import Json.Decode exposing (Decoder, list, int, string, (:=), map, object2)
import Signal exposing (Signal, Mailbox, mailbox, send)
import List
---------------------------------
-- THIRD PARTY LIBRARY IMPORTS --
@TheSeamau5
TheSeamau5 / artistSearchExample.elm
Last active March 10, 2016 15:12
Artist Search Example
--------------------------
-- CORE LIBRARY IMPORTS --
--------------------------
import Json.Decode as Decode exposing (Decoder, object2, map, string, list, (:=))
import Task exposing (Task, andThen, succeed, fail, onError)
import Signal exposing (Signal, Mailbox, mailbox, message, send)
import String
-------------------------
@wincent
wincent / gist:598fa75e22bdfa44cf47
Last active March 24, 2026 13:55

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

@matheusoliveira
matheusoliveira / json_manipulator.sql
Last active January 13, 2025 00:56
Simple PostgreSQL functions to manipulate json objects. (Note: performance is not a concern for those functions)
CREATE OR REPLACE FUNCTION public.json_append(data json, insert_data json)
RETURNS json
IMMUTABLE
LANGUAGE sql
AS $$
SELECT ('{'||string_agg(to_json(key)||':'||value, ',')||'}')::json
FROM (
SELECT * FROM json_each(data)
UNION ALL
SELECT * FROM json_each(insert_data)
@gorhill
gorhill / render_number.go
Last active April 21, 2024 05:50
A Go function to render a number to a string based on the following user-specified criteria: thousands separator, decimal separator, decimal precision. I didn't feel it was worth to publish a library just for this piece of code, hence the snippet. Feel free to reuse as you wish.
/*
Author: https://github.com/gorhill
Source: https://gist.github.com/gorhill/5285193
A Go function to render a number to a string based on
the following user-specified criteria:
* thousands separator
* decimal separator