aes_sbox.h File Reference

The AES forward S-box (FIPS 197 Figure 7) - one shared copy. More...

#include <stdint.h>

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Detailed Description

The AES forward S-box (FIPS 197 Figure 7) - one shared copy.

The identical 256-byte substitution table was open-coded in every software-AES fallback (pc_aes256ctr, aes128gcm) and the shipped SNMPv3 AES-128 (pc_snmp_crypto). Header-only const, no heap, no <stdlib.h>; zero link cost when unused.

Author

Douglas Quigg (dstroy0)

Date

2026

Definition in file aes_sbox.h.