Welcome to Defuse Security

Please feel free to check out, download, and share some of my free software, services, and research...

Services

Security Auditing & Consulting
Professional security auditing services for cryptography and application security.
Online x86 / x64 Assembler
Assemble and disassemble x86 instructions from the comfort of your browser (useful for shellcode development).
Encrypted Pastebin
A pastebin with server-side and (optional) client-side encryption.
Quantum Computer Time Capsule
Add your message to a time capsule that can only be opened once large-scale quantum computers exist.
CrackStation.net Hash Cracker
A massive database of precomputed password hashes; cracks unsalted hashes insanely fast.

$ passgenr Password Generator
Ultra-random Windows, Linux, and Mac password generator.
$ vfy Directory Comparison Tool
A tool for comparing directories, useful for testing backups.

Side-Channel Attacks on Everyday Applications
Cache side-channel attacks on a web browser and PDF viewer. Presented at Black Hat USA 2016.
Concentration Bounds from Parallel Repetition Theorems
My master's thesis in quantum information, on turning parallel repetition theorems into concentration bounds.

13658	Online x86 / x64 Assembler Assemble x86 and x64 code in your browser!
8414	Big Number Calculator A tool for calculating with huge numbers.
2411	PIE Bin A pastebin with both client-side and server-side encryption.
1539	Timing Side Channel Port Scanner in the Browser How web pages can use a timing side channel to "scan" your local network.
1531	Online Hash Calculator A tool for computing hashes (MD5, SHA1, SHA2, etc.) of text and files.
1310	PBKDF2 for PHP A fast implementation of the PBKDF2 key stretching function in PHP.
1247	EncFS Security Audit The results of an EncFS security audit.
959	TRENT - Trusted Random Entropy A free trusted third party random number generator.

... I hope you find my pages useful. Thanks for visiting!