Security

Pretty Good Privacy (PGP)

Introduction to PGP

Good general introduction to PGP

Mike's PGP Page

Good source of general information about PGP

Non-Technical PGP FAQ

A fairly high-level description of PGP, without going into too much technical detail

comp.security.pgp FAQ

One of the major basic FAQs for PGP

Where to Get PGP

FAQ just about where to download PGP

MIT distribution site for PGP

Download the MIT distribution of the freeware, US-only, non-commercial-use PGP implementation

PGPfreeware

Download the Network Associates freeware, US-only, non-commercial-use PGP implementation

CyberKnights PGP

A PGP implementation, independent from Network Associates

Imad's PGP Page

More information about the CyberKnights implementation of PGP

The International PGP Home Page

The source for downloading PGP for everyone outside of the United States

PGP - Pretty Good Privacy

A set of useful links to information and utilities involving PGP

PGP Commercial Use

Clarifications on what constitutes "commercial" uses of PGP

Tom McCune's PGP Page

Good source of information and links for PGP

CTC - PGP-compatible encryption software

Freeware libraries (C, Java) for building applications compatible with PGP

OpenPGP Charter

Group dedicated to making a PGP standard for interoperability

PGP SDK

The official SDK from Network Associates.

S/MIME

RSA Security Protocols Overview

Basic explanation of S/MIME

S/MIME Freeware Library

In-progress set of C++ classes for using S/MIME

S/MIME Introduction

Another basic introduction to S/MIME

S/MIME Working Group

Various technical documents about S/MIME

Miscellaneous

Scramdisk

Create virtual (encrypted) drives under Windows 9x.

ZoneAlarm

Freeware consumer-grade firewall