PQC tools · algorithm selector
Which post-quantum algorithm, and why.
Describe what you are protecting. The selector recommends one of the algorithms NIST standardized in 2024 and shows where each rule comes from: the NIST standard, the IETF, or a rule we chose, marked as ours.
The same answers always give the same recommendation. Nothing you enter is stored.
Try it
What it is and is not
A starting point
A defensible default for one use, following FIPS 203, 204 and 205. The example code is run in our tests against pyca/cryptography, and the key sizes it prints match the standards.
Not an assessment
It does not see your systems, your vendors or your compliance obligations. Finding what you actually run, and in what order to replace it, is the assessment.
Sources: FIPS 203 · FIPS 204 · FIPS 205 · IANA TLS groups
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From one algorithm to your whole estate.
The assessment inventories the cryptography you run and plans each replacement.