This report, building on the basic pseudonymisation techniques, examines advanced solutions for more complex scenarios that can be based on asymmetric encryption, ring signatures and group pseudonyms, chaining mode, pseudonyms based on multiple identifiers, pseudonyms with proof of knowledge and secure multi-party computation. It then applies some of these techniques in the area of healthcare to discuss possible pseudonymisation options in different example cases. Lastly, it examines the application of basic pseudonymisation techniques in common cybersecurity use cases, such as the use of telemetry and reputation systems.

CryptPad 3.14.0 has been deployed to and released on GitHub (). We'v…

RT @ttaubert: "You’ll never guess where we are right now". She didn’t tell me where she was, of course, b/c I didn’t need to know.

#ff @cryptostick aka Nitrokey – an “Open Source USB Stick for secure authentication and encryption” –

Let’s Encrypt is a new Certificate Authority:
It’s free, automated, and open.
Arriving Summer 2015

Using itsdangerous (HMAC and SHA1 based signing utility lib) in another project. Thanks @mitsuhiko!

Online backups for the truly paranoid

(0.30$ / GB-month)

Tarsnap is a secure online backup service for BSD, Linux, OS X, Minix, Solaris, Cygwin, and probably many other UNIX-like operating systems. The Tarsnap client code provides a flexible and powerful command-line interface which can be used directly or via shell scripts.

Encrypted bandwidth-efficient backup using the rsync algorithm

HTTPS Everywhere is a Firefox extension that encrypts your communications with a number of major websites.

Déjà Dup is a simple backup tool. It hides the complexity of doing backups the 'right way' (encrypted, off-site, and regular) and uses duplicity as the backend.

Fast symmetric cryptography in Javascript