A certain maximum amount of data can be safely encrypted when
encryption is performed under a single key. This amount is called
"key lifetime". This specification describes a variety of methods to
increase the lifetime of symmetric keys. It provides two types of
re-keying mechanisms based on hash functions and on block ciphers,
that can be used with modes of operations such as CTR, GCM, CBC, CFB
This document is a product of the Crypto Forum Research Group (CFRG)
in the IRTF.
Research Group Summary
The document was reviewed by active CFRG participants. It has CFRG consensus.
The document conforms to requirements from RFC 5743.
draft-irtf-cfrg-re-keying was discussed at several face-to-face CFRG meetings (and one side meeting) and received quite a bit of review from CFRG.
Version -08 was reviewed by Yaron Sheffer from the Crypto Review Panel. The document was updated and raised issues were addressed.
draft-irtf-cfrg-re-keying-11 was RGLCed in February 2018. Several CFRG participants agreed that the document is ready to publish.
Spencer Dawkins did IRSG review of the document during IRSG Poll. The draft was revised and his comments were addressed.
Alexey Melnikov is the document shepherd.
Colin Perkins is the responsible IRTF Chair.