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