Welcome to Defuse Security

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

Top 8 Pages

740	Online x86 / x64 Assembler Assemble x86 and x64 code in your browser!
559	Big Number Calculator A tool for calculating with huge numbers.
210	PBKDF2 for PHP A fast implementation of the PBKDF2 key stretching function in PHP.
182	EncFS Security Audit The results of an EncFS security audit.
144	PIE Bin A pastebin with both client-side and server-side encryption.
95	Password Policy Hall of Shame A list of web sites that store passwords in plain text, restrict password length, or restrict password characters
81	Hashes of TrueCrypt Version 7.1a Files Hashes of all files from the last version of TrueCrypt
73	"Privacy Aware" Unique Hit Counter for PHP A simple hit counter that stores only a hash of your visitor's IP address.

PIE BIN
"Pre-Internet Encryption for Text" - A pastebin with client-side (JavaScript) encryption.
CrackStation.net Hash Cracker
A HUGE database of precomputed password hashes, rainbow tables, and more.
TRENT - Trusted Random Entropy
A trusted third party for doing online drawings, contests, or anything else that needs unbiased random numbers.
Online x86 / x64 Assembler
Convert any x86 or x64 intel assembly language code into the bytes the CPU executes. Useful for shellcode development and reverse engineering.
Big Number Calculator
A calculator for obtaining the decimal representation of very large numbers.

Password Generator
Ultra-random Windows, Linux, and UNIX password generator.
"HelloWorld!" Secure CMS for PHP
A very lightweight, but very secure, Content Management System for PHP.
PHP Hash Cracker
A versatile hash cracking script written in PHP.
Backup Verification Script (Ruby)
A probabilistic recursive directory comparison tool.
Sockstress
A C implementation of the sockstress attack discovered in 2008.

How to Hash Passwords (The Right Way)
A detailed explanation of why passwords need to be hashed, and how to do it right.
Insane Password Restrictions
A look at why some websites limit passwords to a maximum number of characters.
Password Policy Hall of Shame
A list of websites that probably aren't hashing their users' passwords.
NTFS File System Events Filename Disclosure
It is possible to view the names of files in protected NTFS folders while they are being created or modified.
PUP Confusion
Evading antivirus detection using PUPs - Potentially Unwanted Programs.

... we hope you find our pages useful. Thanks for visiting!