TLS Security Guidelines
Knowledge articles
Transport Layer Security (TLS)
Verdiepen
The NCSC has been actively maintaining the TLS guidelines since 2014. On this page you will find the most up‑to‑date guidelines.
TLS Security Guidelines 2025-05
Errata:
- The recommendation for the PSS padding scheme has been moved from Table 4 to the accompanying text.
- Several textual improvements have been made to make the text more readable. These do not contain functional changes.
TLS Security Guidelines 2021-01 (v2.1)
This is an outdated version of the TLS guidelines from 2021 and is no longer current.
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