An ACME-based certificate authority, written in Go.
This is an implementation of an ACME-based CA. The ACME protocol allows the CA to automatically verify that an applicant for a certificate actually controls an identifier, and allows domain holders to issue and revoke certificates for their domains. Boulder is the software that runs Let's Encrypt.

CryFS encrypts your files, so you can safely store them anywhere. It works well together with cloud services like Dropbox, iCloud, OneDrive and others.

Felony is an open-source pgp keychain built on the modern web with Electron, React, and Redux. Felony is the first PGP app that's easy for anyone to use, without a tutorial. Security++ to the greatest extreme!

Keybase maps your identity to your public keys, and vice versa.

A fun tool to learn about ciphers.
Codemoji teaches you about ciphers.
Create and share messages with
your friends using fun emoji.

Secure PHP CMS for the Modern Web.
Airship is a Content Management System designed to provide a secure foundation for your website.

safepaste is a security-conscious paste service for sharing private, encrypted data. All encryption is done client-side and it's impossible for the server, admin, or anyone without your 256 bit key to view the paste. All pastes are encrypted using AES-256.

Lufi means Let's Upload that FIle.

The images are encrypted on the server (Lutim does not keep the key).

Friends is like Slack except P2P, offline friendly and open source. We transmit data over secure channels and authenticate messages. It's made by a group of open source developers who are motivated to make a public chat platform that is easy to use but isn't centrally controlled, and where data is owned by its users.

Secure, Encrypted, Anonymous Calling

client-side AES-encrypted Markdown pastes

Sync your files across multiple devices. Share securely with family, friends and co-workers.

Nogotofail is a network security testing tool designed to help developers and security researchers spot and fix weak TLS/SSL connections and sensitive cleartext traffic on devices and applications in a flexible, scalable, powerful way. It includes testing for common SSL certificate verification issues, HTTPS and TLS/SSL library bugs, SSL and STARTTLS stripping issues, cleartext issues, and more.

Alors que les programmes de surveillance gouvernementaux étendent leur influence, Tox est une application facile à utiliser qui vous permet de contacter vos amis et vos proches sans que quelqu'un d'autre soit à l'écoute

git-crypt enables transparent encryption and decryption of files in a git repository. Files which you choose to protect are encrypted when committed, and decrypted when checked out. git-crypt lets you freely share a repository containing a mix of public and private content. git-crypt gracefully degrades, so developers without the secret key can still clone and commit to a repository with encrypted files. This lets you store your secret material (such as keys or passwords) in the same repository as your code, without requiring you to lock down your entire repository.

img.bi is a secure image hosting. Images are encrypted using AES-256 with random key in browser before upload.

La messagerie sécurisée pour tous.
Alors que les programmes de surveillance gouvernementaux étendent leur influence, Tox est une application facile à utiliser qui vous permet de contacter vos amis et vos proches sans que quelqu'un d'autre soit à l'écoute

The Monkeysphere project's goal is to extend OpenPGP's web of trust to new areas of the Internet to help us securely identify servers we connect to, as well as each other while we work online. The suite of Monkeysphere utilities provides a framework to transparently leverage the web of trust for authentication of TLS/SSL communications through the normal use of tools you are familiar with, such as your web browser0 or secure shell.