A Generic Ciphertext Format

Document Type Expired Internet-Draft (individual)
Authors Yaron Sheffer  , Gleb Keselman  , Yoav Nir 
Last updated 2021-07-26 (latest revision 2021-01-15)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a set of structured headers for encrypted data. The main goal of this format is to enable detection of encrypted data in large data stores, and associating it back to the system where it was created and the key with which it was encrypted. This allows organizations to extend the concept of data governance to encrypted data, and to manage such data even when encrypted by multiple different systems and cloud providers.


Yaron Sheffer (yaronf.ietf@gmail.com)
Gleb Keselman (gleb.keselman@gmail.com)
Yoav Nir (ynir.ietf@gmail.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)