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@grugq
grugq / gist:03167bed45e774551155
Last active April 6, 2024 10:12
operational pgp - draft

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

@cypres
cypres / gpoint.php
Created February 23, 2011 14:20
PHP class to convert Latitude & Longitude coordinates into UTM & Lambert Conic Conformal Northing/Easting coordinates.
<?php
/**
* PHP class to convert Latitude & Longitude coordinates into UTM & Lambert Conic Conformal Northing/Easting coordinates.
*
* This class encapsulates the methods for representing a geographic point on the earth in three different coordinate systema. Lat/Long, UTM and Lambert Conic Conformal.
*
* Code for datum and UTM conversion was converted from C++ code written by Chuck Gantz (chuck.gantz@globalstar.com) from http://www.gpsy.com/gpsinfo/geotoutm/
* This code was converted into PHP by Brenor Brophy (brenor@sbcglobal.net) and later refactored for PHP 5.3 by Hans Duedal (hd@onlinecity.dk).
*