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NuttX emits no AES instruction on any arm64 core. There is no runtime feature dispatch in arch/arm64, so every AES goes through crypto/rijndael.c or crypto/aes.c, and the table-driven one indexes memory with key-dependent values, so its timing follows the cache. Provide aes_cypher() for ECB, CBC and CTR built on AESE, AESD and the MixColumns pair, and register it with /dev/crypto as a hardware driver alongside the existing stm32h7, sam34 and esp32 modules. ID_AA64ISAR0_EL1.AES is read on every call, which returns -ENOTSUP rather than trapping on a core without the extension. Verified against the NIST SP 800-38A appendix F vectors for ECB-128, ECB-256, CBC-128, CBC-192 and CTR-128, encrypt and decrypt, in place and out of place. Signed-off-by: Royyan Zahir <royzah@gmail.com> |
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| .. | ||
| arm | ||
| arm64 | ||
| avr | ||
| ceva | ||
| dummy | ||
| hc | ||
| mips | ||
| misoc | ||
| or1k | ||
| renesas | ||
| risc-v | ||
| sim | ||
| sparc | ||
| tricore | ||
| x86 | ||
| x86_64 | ||
| xtensa | ||
| z16 | ||
| z80 | ||
| CMakeLists.txt | ||
| Kconfig | ||