You Can Create Art and Beauty on a Computer

2021-03-28 | Ryan Castellucci | Tags: art hacking

DKIM: Show Your Privates

2020-11-02 | Ryan Castellucci | Tags: email rsa dkim security cryptography

Artisanal RSA

2020-08-17 | Ryan Castellucci | Tags: rsa tls ssl security cryptography

Bitfi’s Hardware Wallet is Terrible

2018-07-27 | Ryan Castellucci | Tags: bitfi bitcoin security passwords

Storybits: Error Resistant Mnemonics

2017-12-13 | Ryan Castellucci | Tags: passwords storybits

Forensic Bitcoin Cracking: As Easy as 1, 3, 7...

2016-09-17 | Ryan Castellucci | Tags: crypto bitcoin c security

Recreating Craig Wright’s Sartre File

2016-05-02 | Ryan Castellucci | Tags: crypto bitcoin

HTTPS Subresource Validation Fail

2016-02-01 | Ryan Castellucci | Tags: ssl tls https browsers vulns security

Why I’m Releasing a Brainwallet Cracker at DEFCON 23

2015-07-08 | Ryan Castellucci | Tags: crypto defcon security bitcoin passwords brainwallets

Using GitHub With Multiple Accounts or Deploy Keys

2015-06-20 | Ryan Castellucci | Tags: github git ssh

Stupid Certificate Tricks

2015-04-04 | Ryan Castellucci | Tags: crypto ssl tls rsa python

Why Bitcoin Mining ASICs Won’t Crack Your Password

2015-02-22 | Ryan Castellucci | Tags: bitcoin security passwords

How I Made My Header Image

2014-11-28 | Ryan Castellucci | Tags: linux bash imagemagick

Never Forget to Start Screen Again

2014-09-20 | Ryan Castellucci | Tags: linux bash ssh screen