Sealds Blog

The 8 benefits you need to know about end-to-end encryption.
The 8 benefits you need to know about end-to-end encryption.

Let's decrypt together the 8 advantages of end-to-end encryption and discover why this technology has become a game changer for applications that collect sensitive data. But before diving into the 8 benefits that end-to-end encryption offers, it's essential to understand the problem this technology can address 🧐. Take the example of a "traditional" messaging application not encrypted end-to-end: During the transmission of a message, the sender sends their message to the application's server,

14/11/2023 7 min
3 common mistakes when implementing encryption
3 common mistakes when implementing encryption

I'm sometimes asked how secure the algorithms used by Seald are, what their "security level" is. In reality, the weakness of a cipher rarely lies in the algorithms used, but in the way they are implemented, or in the way they are combined. We sometimes see projects (even well-known ones) in which developers have implemented encryption, armed with their Crypto 101 course, but rarely end up with a robust mechanism. Unfortunately, implementing encryption isn't just about using AES and having a dec

23/10/2023 16 min
Creating an end-to-end encrypted chat with Stream and Seald 🔒💬
Creating an end-to-end encrypted chat with Stream and Seald 🔒💬

The original post was written by Sander Goossens, developer at In The Pocket, you can find it here: https://dev.inthepocket.com/posts/2022-02-15-creating-an-encrypted-chat-with-getstream-and-seald-io/ Sander Goossens: Recently, a client came to us asking for a chat solution with encryption support. After some research, we quickly came to a combined solution of GetStream.io and Seald.io. GetStream.io offers real-time chat messaging with a reliable chat infrastructure and feature-rich SDKs. One

29/08/2023 8 min
France 2030: Seald is a laureate alongside Wimi 🏆
France 2030: Seald is a laureate alongside Wimi 🏆

On April 6, 2023, Bruno Le Maire (Minister of Economy, Finance and Industrial and Digital Sovereignty) and Jean-Noël Barrot (Minister Delegate in charge of Digital Transition and Telecommunications) announced the winners of the call for projects "Development of cloud office suites for collaborative work", in the framework of France 2030. As you understood, Seald is part of it 🔥 It is alongside Wimi (but not only 😎), that we will take up this challenge. The project has a simple goal: to make

26/04/2023 1 min
How Recare protects the health data of 300 000 patients? 🏥
How Recare protects the health data of 300 000 patients? 🏥

Created in 2016, Recare is a solution that coordinates patient transfer requests between hospitals and healthcare facilities. Example: between emergency rooms and MSO (Medicine, Surgery and Obstetrics) facilities. Present in France 🇫🇷 and in Germany 🇩🇪, the Recare solution: * Reduces the Average Length Of Stay (ALOS) in the facilities * Saves time for medical and administrative teams * Centralizes all transfer requests on a single platform The Recare problem For Charles Cote - CTO @

22/03/2023 5 min
[Interview] Introduction to cybersecurity
[Interview] Introduction to cybersecurity

Timothée Rebours, Seald: “it’s now nearly impossible to protect or even define the perimeter as everything's so intertwined” With the number of connected devices and users growing by the minute, securing large amounts of sensitive data becomes increasingly more difficult. As more aspects of our lives become digitized, many companies and institutions providing online services start to struggle with ensuring their user data is safe. Sure, implementing quality authentication measures or encryptin

27/04/2022 5 min
Building an end-to-end encrypted file sharing application with Seald
Building an end-to-end encrypted file sharing application with Seald

If you want to play with the final project, you can find it on our Github repository seald/sdk-upload-example [https://github.com/seald/sdk-upload-example/], with instructions to run it on Docker. Be careful, this is a demonstration project, which comes with no guarantee and needs some improvements to be used in production. An end-to-end encrypted file sharing application There are many file sharing applications (WeTransfer, OneDrive, Dropbox, ...). However, how do these platforms ensure the co

21/01/2022 8 min
Data destruction using crypto-shredding
Data destruction using crypto-shredding

Crypto-shredding is a data destruction technique that consists in destroying the keys that allow the data to be decrypted, thus making the data undecipherable. Difficulty of data destruction Data destruction is a major issue in data protection regulations such as the GDPR in the context of exercising an individual's right to erasure. When a company exercises a person's right to erasure, it must search all databases, all object or flat storage, all logs (and their backups) to find all occurrenc

14/06/2021 2 min
Encryption and politics
Encryption and politics

On Tuesday the 23rd of August 2016 [https://www.liberation.fr/france/2016/08/23/tandem-franco-allemand-pour-renforcer-l-arsenal-antiterroriste-europeen_1474164] , Interior Minister Bernard Cazeneuve received his German counterpart, Thomas de Maizière, to exchange views on the control of data encryption means to strengthen the means of the fight against terrorism. Some politicians, including Mr. Cazeneuve, demand against the unanimous opinion of experts that every message transmitted on the Inte

03/01/2018 2 min