cryptography tag

cryptography

Cossack Labs Blog

23 Jul 2019

Secure Search Over Encrypted Data

What is searchable encryption and what are the tools that allow performing secure search over encrypted data. A brief overview.

database security cryptography Acra searchable encryption

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9 Apr 2018

Moving to OpenSSL 1.1.0 — How We Did It

Going through breaking changes and avoiding pitfalls in the process of moving from OpenSSL 1.0.2 to OpenSSL 1.1.0.

Themis cryptography OpenSSL

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13 Dec 2017

Introducing Hermes

Today is the release day for a proof of concept version of Hermes — a framework for cryptographically assured access control and data security Hermes-core 0.5.1.

Hermes end-to-end encryption products cryptography releases

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23 Nov 2017

Auditable Macros in C Code

Turning macros into auditable C code in a highly parameterised cross-platform cryptographic library Themis with a help of preprocessor customization.

Themis development cryptography

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21 Sep 2017

Replacing OpenSSL with Libsodium

The second article in a series of three that covers our experiments with different sources of crypto primitives for Themis. This time we tested its multi-platform capabilities with Libsodium.

cryptography OpenSSL Libsodium Themis development

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11 Jul 2017

Replacing OpenSSL with BoringSSL in a Complex Multi-Platform Layout

To provide better multi-platform support in Themis, we've built multi-donor support abstraction layer for cryptographic primitives, called Soter. This is the first article in a series of three that will cover our experiments with different sources of crypto primitives, this time - BoringSSL.

Android cryptography LibreSSL OpenSSL BoringSSL

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21 Sep 2016

Backend data security: Key management 101

Second article in series, Key Management 101 will talk about basic key management concepts, goals and methods to achieve them. 

backend security series applied security howto cryptography database security

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27 Jul 2016

Zero Knowledge Protocols without magic

In this post, we talk about Zero-Knowledge Proofs, tie ZKP authentication to traditional security models and help you understand better how authentication, in general, should work. 

Themis cryptography Secure Comparator zkp applied security

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23 May 2016

Choose your Android crypto (Infographic)

This blog post features infographic on how to choose cryptographic frameworks when developing Android apps and adds a few notes about Native/Java crypto.
 

Themis cryptography infographic applied security howto Android development

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21 Apr 2016

Building Sesto, in-browser password manager

Sesto is one of PoC tools we've developed while working on WebThemis - the cryptographically sane front-end framework for Google Chrome. Sesto enables web users to store any secrets (for example, login credentials) on the server and use them from any computer that has Google Chrome installed. 

Themis PNaCl cryptography Python Web

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Cossack Labs is a privately-held British company with a team of data security experts based in Kyiv, Ukraine.