Welcome to Defuse Security

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

Newest Page:   A Simple Proof of Gödel's Second Incompleteness Theorem Using Turing Machines

Top 8 Pages

11033
Online x86 / x64 Assembler
Assemble x86 and x64 code in your browser!
7336
Big Number Calculator
A tool for calculating with huge numbers.
2310
PIE Bin
A pastebin with both client-side and server-side encryption.
1562
Online Hash Calculator
A tool for computing hashes (MD5, SHA1, SHA2, etc.) of text and files.
1496
Timing Side Channel Port Scanner in the Browser
How web pages can use a timing side channel to "scan" your local network.
1390
Password Policy Hall of Shame
A list of web sites that store passwords in plain text, restrict password length, or restrict password characters
1287
PBKDF2 for PHP
A fast implementation of the PBKDF2 key stretching function in PHP.
1246
EncFS Security Audit
The results of an EncFS security audit.
more pages...

Services

  • 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.

Software

Security Research

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