Calls: Send in your ideas. Deadline August 1st, 2023.


Implement TLS-KDH in GnuTLS

TLS-KDH is a mechanism that adds Kerberos authentication to the Transport Layer Security (TLS) network protocol. TLS-KDH is developed under the flag of ARPA2 ( and is formalized in the form of a draft Internet specification for the IETF RFC standards track. This project serves to create a prototype implementation of the protocol within GnuTLS.

For a more extensive overview of advantages of TLS-KDH we refer to the project homepage (

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This project was funded through the Internet Hardening Fund, a fund established by NLnet with financial support from the Netherlands Ministry of Economic Affairs and Climate Policy.

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Please check out NLnet's theme funds, such as NGI Assure and NGI Zero Entrust.

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