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@a1k0n
a1k0n / ylogo.c
Created October 22, 2015 01:02
Expanded version of the code featured in http://www.a1k0n.net/2011/06/26/obfuscated-c-yahoo-logo.html
#include <math.h>
#include <stdio.h>
#include <unistd.h>
// Each character encodes an angle of a plane we are checking
const char plane_angles[] = "O:85!fI,wfO8!yZfO8!f*hXK3&fO;:O;#hP;\"i[";
// and these encode an offset from the origin s.t. (x, y) dot (cos(a), sin(a)) < offset
const char plane_offsets[] = "<[\\]O=IKNAL;KNRbF8EbGEROQ@BSXXtG!#t3!^";
// this table encodes the offsets within the above tables of each polygon
@jaseg
jaseg / gist:3334991
Created August 12, 2012 22:32
Password manager without a password manager

Prelude

Since password managers are big and complicated and I currently am pretty bored since I am sitting in a car for a few hours, here is a simple algorithm to generate resource-specific, unique passwords using a master password and no password database.

WARNING

As pointed out here: http://news.ycombinator.com/item?id=4374888 this method is broken.

Usage