crypt/wolfssl
1
0
Fork 0
mirror of https://github.com/wolfSSL/wolfssl.git synced 2026-10-24 04:09:07 +03:00
Code Activity

Fix for using STM32 AES hardware crypto with WOLFSSL_ARMASM set (ZD 21262)

Browse Source
This commit is contained in:
David Garske
2026-04-24 17:14:13 -07:00
parent 1c9555c121
commit e31e158225
1 changed files with 7 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
wolfcrypt/src/aes.c
View File

@@ -7707,7 +7707,13 @@ int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
return ret;
#endif /* WOLFSSL_RENESAS_RSIP && WOLFSSL_RENESAS_FSPSM_CRYPTONLY*/
#if defined(WOLFSSL_ARMASM)
/* GCM setup needs one AES block encrypt of the all-zero IV to generate
* the hash subkey H. STM32_CRYPTO stores only the raw key (no expanded
* key schedule), so the ARMASM AES_ECB_encrypt helpers used here cannot
* be used. Excluding STM32_CRYPTO from this block falls back to the
* non-ARMASM wc_AesEncrypt implementation, which on STM32 routes to
* CRYP. */
#if defined(WOLFSSL_ARMASM) && !defined(STM32_CRYPTO)
if (ret == 0) {
#ifndef WOLFSSL_ARMASM_NO_HW_CRYPTO
#if !defined(__aarch64__)