http://blog.conjur.net/conjur-4-4-released
One of their stipulations for the audit was that we don't use it for promotional purposes so I guess a NDA is required to discuss details.
The tech we use for encryption of secrets is definitely open source here: https://github.com/conjurinc/slosilo
Conjur isn't built on in-house cryptographic software - it uses trusted open-source tools - OpenSSL, PAM and so on.
Most of our work is open-source https://github.com/conjurinc https://github.com/conjur-cookbooks