Cryptographic tools to easily protect your apps

Worry less, deliver more


Themis - high level cryptosystem engine Acra - modern database encryption suite Hermes - crypto-based rights management Toughbase - sensitive data lifecycle protection
  • Themis

    Themis: integrate data protection into your code A cryptosystems library that provides transport, authentication, and data-at-rest. Get going fast and easy, across multiple platforms. Read more Get Themis

  • Acra

    Acra: protect sensitive data in your web app Integrate an encryption proxy into your app: offload sensitive operations to a special node and don’t worry about breaches, injections, and leaks ever again. Read more Get Acra

  • Hermes

    Hermes: manage access cryptographically Map the rights to cryptographic keys using a crypto-based ACL framework for various storage models – documents, databases, file systems. Read more Get Hermes

  • Toughbase

    Toughbase: data lifecycle protection, end-to-end Store, control access and usage of data between clients in your infrastructure with end-to-end cryptography. Read more

Data security tools for application developers

Open source Crypto

Core crypto/security modules are always available in open source, forever, under Apache 2 and GPL licences.

All-encompassing defence

Deploy end-to-end and traditional defence schemes with cross-platform tools in convenient packaging.


Enterprise stack support, automated configuration management, policies, audit log, and other advanced features.

Recent blog posts


Cossack Labs develop powerful, easy-to-use data security tools for software developers, empowering organisations to minimise losses from security incidents and breaches.
We're a British company, headquartered in London, with our R&D office in Kyiv, Ukraine.
We have deep and long experience of developing mission-critical applications with strong security demands, in a human friendly form.
Tools built by engineers for engineers: our team, including most of our senior management, has deep and long experience of developing mission-critical applications with strong security demands, in a human-friendly form.
Strong cryptographic expertise:
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Copyright © 2014-2018 Cossack Labs Limited
Cossack Labs is a privately-held British company with a team of data security experts based in Kyiv, Ukraine.