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libretro/scripts/sect233r1.py
Abdessamad Derraz 685713a7e6 feat: add sect233r1 ECDSA verification for 3DS OTP cert 
pure python GF(2^233) field arithmetic, binary curve point operations,
and ECDSA-SHA256 on sect233r1. verifies OTP CTCert against nintendo
root CA public key. zero dependencies. sign+verify round-trip tested,
n*G=O verified, wrong key/message rejection confirmed.
2026-03-24 11:45:16 +01:00

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