RFC 8645: Re-keying Mechanisms for Symmetric Keys
Recent RFCs 2019-08-29
Summary:
A certain maximum amount of data can be safely encrypted when
encryption is performed under a single key. This amount is called
the "key lifetime". This specification describes a variety of
methods for increasing the lifetime of symmetric keys. It provides
two types of re-keying mechanisms based on hash functions and block
ciphers that can be used with modes of operations such as CTR, GCM,
CBC, CFB, and OMAC.
This document is a product of the Crypto Forum Research Group (CFRG)
in the IRTF.