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COTECH Labs

At COTECH Labs, we work on projects to protect the Internet at scale, like email encryption and secure software distribution. We maintain strong connections with university research and take part in security initiatives.

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Autocrypt specification

We are actively participating in the Autocrypt project to design a new standard for end-to-end encrypted email communication.

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Autocrypt for Thunderbird

We developed an extension to bring Autocrypt to Thunderbird: Email encryption that gets out of your way.

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F-Droid

We develop and support white-label versions of F-Droid. We work with upstream and contribute features, such as automatic installation of updates (e.g. just like Google Play does).

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Cryptographic research

We sometimes provide consulting services for cryptographic protocols. This includes Double Ratchet based protocols (Signal, OMEMO,…) and key exchange protocols (Password Authenticated Key Exchanges).

K-9 Mail + OpenKeychain

K-9 Mail + OpenKeychain are the perfect match for end-to-end encrypted email on Android. Contact us for support contracts or custom solutions.

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keys.openpgp.org

We maintain and run the most popular OpenPGP keyserver on keys.openpgp.org in cooperation with Sequoia PGP.

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Find your NFC sweetspot

The quality of your smartphone’s NFC connection depends strongly on where and how the NFC antenna has been assembled. Therefore, we collect device-dependent data to show users the best NFC location.

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Vulnerability research

Due to our involvment in the analysis and implementation of security protocols, we sometimes find security vulnerabilities. This include vulnerabilities in Nextcloud (CVE-2020-8236), GMail, Web.de, K-9 Mail, Telegram, Threema, Signal (CVE-2016-2425) and Linphone (CVE-2016-6271).

Paid support

Do you need professional support? Feel free to write to us.