sdk-js - Tanker client-side encryption SDK for JavaScript

•    Javascript

Tanker is an open-source solution to protect sensitive data in any application, with a simple end-user experience and good performance. No cryptographic skills are required to implement it. Tanker FileKit is an end-to-end encrypted file storage service for apps.

Tcpcrypt - Encrypting the Internet

•    C

Tcpcrypt is a protocol that attempts to encrypt (almost) all of your network traffic. Unlike other security mechanisms, Tcpcrypt works out of the box: it requires no configuration, no changes to applications, and your network connections will continue to work even if the remote end does not support Tcpcrypt, in which case connections will gracefully fall back to standard clear-text TCP.

matrix-js-sdk - Matrix Client-Server SDK for JavaScript

•    Javascript

This is the Matrix Client-Server v1/v2 alpha SDK for JavaScript. This SDK can be run in a browser or in Node.js. Download either the full or minified version from https://github.com/matrix-org/matrix-js-sdk/releases/latest and add that as a <script> to your page. There will be a global variable matrixcs attached to window through which you can access the SDK. See below for how to include libolm to enable end-to-end-encryption.

Python-gnupg - Python API which wraps the GNU Privacy Guard

•    Python

The gnupg module allows Python programs to make use of the functionality provided by the GNU Privacy Guard (abbreviated GPG or GnuPG). Using this module, Python programs can encrypt and decrypt data, digitally sign documents and verify digital signatures, manage (generate, list and delete) encryption keys, using proven Public Key Infrastructure (PKI) encryption technology based on OpenPGP.

.Net End-To-End Encryption

.Net Library for End-To-End Encryption compatible with the eHealth End-To-End Encryption library. It allows to send sensitive messages over an non protected carrier. It not only protect against unauthorized access, but also identifies the sender.

end-to-end - End-To-End is a crypto library to encrypt, decrypt, digital sign, and verify signed messages (implementing OpenPGP and OTR)

•    Javascript

End-To-End is a crypto library to encrypt, decrypt, digital sign, and verify signed messages (implementing OpenPGP and OTR).This is the source code for the End-To-End library. It's built upon a newly developed, JavaScript-based crypto library. End-To-End implements the OpenPGP standard, IETF RFC 4880, enabling key generation, encryption, decryption, digital signature, and signature verification.

capillary - Capillary is a library to simplify the sending of end-to-end encrypted push messages from Java-based application servers to Android clients

•    Java

This is a library to simplify the sending of end-to-end (E2E) encrypted push messages from Java-based application servers to Android clients. Please check the instructions below and the demo for more details. To use push messaging services to send messages to connected devices, developers must send them through a third party messaging service, such as Firebase Cloud Messaging (FCM). It’s simple to encrypt message contents between the developer and the messaging service using https. Major messaging services, including FCM, also encrypt messages between their servers and client devices.

Libcurve - An encryption and authentication library for ZeroMQ applications

•    C

Curve implements the CurveZMQ elliptic curve security mechanism, for use in ZeroMQ applications. This library is primarily a reference implementation for the CurveZMQ specification but may also be used for end-to-end security. CurveZMQ creates encrypted sessions ("connections") between two peers using short term keys that it securely exchanges using long term keys. When the session is over, both sides discard their short term keys, rendering the encrypted data unreadable, even if the long term keys are captured. It is not designed for long term encryption of data.

Crypter - An innovative, convenient and secure cross-platform encryption app 🔒⬅️ ✨➡️🔓

•    Javascript

Encrypt unlimited bits. Remember only a bit. Crypter is a cross-platform crypto app that makes encryption and decryption convenient while still upholding strong security. It tackles one of the weakest links in most security systems today - weak passwords. It simplifies secure password generation and management and requires you to only remember one bit - your MasterPass.

Cryptography - Package designed to expose cryptographic primitives and recipes to Python developers

•    Python

cryptography is a package which provides cryptographic recipes and primitives to Python developers. Our goal is for it to be your "cryptographic standard library". It supports Python 2.7, Python 3.4+, and PyPy 5.3+. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, message digests, and key derivation functions. For example, to encrypt something with cryptography's high level symmetric encryption recipe.

shaka-packager - A media packaging SDK intended for C++ programmers writing MPEG-DASH packaging applications with Widevine DRM and Common Encryption support

•    C++

Media packaging SDK intended for C++ programmers writing DASH/HLS packager applications with common encryption support, Widevine DRM support, Live, and Video-On-Demand.This document provides the information needed to create a DASH/HLS packager that is able to remux and encrypt a video into fragmented ISO BMFF format with common encryption (CENC) support. The DASH/HLS packaging API is also designed in such a way for easy extension to more source and destination formats.

ProtonMail - Web client for the ProtonMail secure email service

•    Javascript

ProtonMail provides secure email service. All emails are secured automatically with end-to-end encryption. This means even we cannot decrypt and read your emails. As a result, your encrypted emails cannot be shared with third parties.

SEAL - Simple Encrypted Arithmetic Library (SEAL) is an easy-to-use but powerful homomorphic encryption library written in C++

•    C++

Microsoft Simple Encrypted Arithmetic Library (Microsoft SEAL) is an easy-to-use homomorphic encryption library developed by researchers in the Cryptography Research group at Microsoft Research. SEAL is written in modern standard C++ and has no external dependencies, making it easy to compile and run in many different environments. For more information about the Microsoft SEAL project, see http://sealcrypto.org.

miscreant - Misuse-resistant symmetric encryption library with AES-SIV (RFC 5297) and AES-PMAC-SIV support

•    TypeScript

A misuse resistant symmetric encryption library designed to support authenticated encryption of individual messages, encryption keys, message streams, or large files using the AES-SIV (RFC 5297), AES-PMAC-SIV, and STREAM constructions. Miscreant is available for several programming languages, including C#, Go, JavaScript, Python, Ruby, and Rust.

Tutanota - Encrypted MailBox

•    Javascript

Tutanota automatically encrypts all your data on your device. Your emails as well as your contacts stay private. You can easily communicate with any of your friends end-to-end encrypted. Even subject and attachments as well as all your contacts are encrypted. It provides an open webmail service that is very easy to use.

Firefox Send - Simple, private file sharing

•    Javascript

Firefox Send lets you share files with end-to-end encryption and a link that automatically expires. This helps to keep your stuff private and make sure it does not stay online forever.

Kaa - Middleware platform for the Internet of Things

•    Java

Kaa is a production-ready, multi-purpose middleware platform for building complete end-to-end IoT solutions, connected applications, and smart products. The Kaa platform provides an open, feature-rich toolkit for the IoT product development and thus dramatically reduces associated cost, risks, and time-to-market. For a quick start, Kaa offers a set of out-of-the-box enterprise-grade IoT features that can be easily plugged in and used to implement a large majority of the IoT use cases.

Charm-crypto - A Python-based rapid prototyping framework for cryptosystems

•    Python

Charm is a framework for rapidly prototyping advanced cryptosystems. Based on the Python language, it was designed from the ground up to minimize development time and code complexity while promoting the reuse of components. It supports Base crypto library, including symmetric encryption schemes, hash functions, PRNGs, digital signature, encryption and lot more.

GPG-Crypter

•    C

GPG-Crypter is a graphical front-end to GnuPG(GPG) using the GTK3 toolkit and GPGME library. It has been developed to provide an easy access to GPG encryption and decryption. It supports encryption and decryption of text entered into the program's input fields. It also supports file encryption and decryption.

ElectronMail - Unofficial desktop app for ProtonMail and Tutanota E2EE email providers

•    TypeScript

is an Electron-based unofficial desktop client for ProtonMail and Tutanota end-to-end encrypted email providers. The app aims to provide enhanced desktop user experience enabling features that are not supported by the official in-browser web clients. It is written in TypeScript and uses Angular. The download page with Linux/OSX/Windows installation packages is here.