Test vectors from Wycheproof (Apache 2.0 license), in the v1 format:

    https://github.com/C2SP/wycheproof/tree/master/testvectors_v1
    (commit 7a325932231bd7a724c791c8b0d65ea4d6d2f435, 12 October 2026)

The files are unmodified copies.
HPKE-test-vectors.json is not from Wycheproof.

HPKE-PQ-test-vectors.json is not from Wycheproof either: it is the file
test-vectors.json of draft-ietf-hpke-pq (HPKE with ML-KEM and with the hybrid KEMs),
unmodified:

    https://github.com/hpkewg/hpke-pq
    (commit 6433c8fce0b8b749dfc86c1095081a88698ccfab, 6 July 2026)
