A new Request for Comments is now available in online RFC libraries.
RFC 9958
Title: Post-Quantum Cryptography for Engineers
Author: A. Banerjee,
T. Reddy.K,
D. Schoinianakis,
T. Hollebeek,
M. Ounsworth
Status: Informational
Stream: IETF
Date: June 2026
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 42
I-D Tag: draft-ietf-pquip-pqc-engineers-14
URL: https://www.rfc-editor.org/info/rfc9958
DOI: 10.17487/RFC9958
The advent of a cryptographically relevant quantum computer (CRQC) would render
state-of-the-art, traditional public key algorithms deployed today obsolete, as
the mathematical assumptions underpinning their security would no longer hold.
To address this, protocols and infrastructure must transition to post-quantum
algorithms, which are designed to resist both traditional and quantum attacks.
This document explains why engineers need to be aware of and understand
post-quantum cryptography (PQC), and it details the impact of CRQCs on existing
systems and the challenges involved in transitioning to post-quantum
algorithms. Unlike previous cryptographic updates, this shift may require
significant protocol redesign due to the unique properties of post-quantum
algorithms.
This document is a product of the Post-Quantum Use In Protocols Working Group
of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
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