Previous parts of this series have used the Global Directory for
storing public authentication information in the form of public key
material. These mechanisms are much better than the common poor man's
choice of using passwords. Unfortunately however, we are all poor men
(and women) in some parts of our daily lives; we all use protocols and
tools that are not capable of those advanced cryptographic exchanges.
And a plethora of scripted web-tools is not improving that! So the ideal
would be to publish a password verification method in the Global
Directory as well. The SRP mechanism makes this possible.
This episode explains what the ideas are, and defers the technical
detail to later articles. This introduction explains how global
directories can benefit you, your family and your company. In short, a
global directory is a way of retrieving contact information from others,
using standard technology, so you can employ tools that download and
update contact information without any input from you.
TLS is the protocol that replaces SSL, best known for its protection
of secure websites. Connections over TLS can greatly enhance security,
but only when key management is properly implemented. When centrally
managed, such as by X.509 CA's then all risk concentrates with that CA.
Solutions like DANE help to lighten that burden, but decentral
organisation of security is in fact a much more solid model. This
article explains how to use OpenPGP-based TLS for security connections