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wolfcrypt/src/aes.c: in wc_AesGcmSetKey(), don't VECTOR_REGISTERS_POP() until after GCM_generate_m0_*().

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This commit is contained in:
Daniel Pouzzner
2026-01-30 17:33:30 -06:00
parent e48663248c
commit 8719df2666
1 changed files with 32 additions and 29 deletions
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61
wolfcrypt/src/aes.c
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@@ -7460,37 +7460,40 @@ int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
* assure pure-C fallback is always usable.
*/
ret = wc_AesEncrypt(aes, iv, aes->gcm.H);
if (ret == 0) {
#if defined(GCM_TABLE) || defined(GCM_TABLE_4BIT)
#if defined(WOLFSSL_AESNI) && defined(GCM_TABLE_4BIT)
if (aes->use_aesni) {
#if defined(WC_C_DYNAMIC_FALLBACK)
#ifdef HAVE_INTEL_AVX2
if (IS_INTEL_AVX2(intel_flags)) {
GCM_generate_m0_avx2(aes->gcm.H, (byte*)aes->gcm.M0);
}
else
#endif
#if defined(HAVE_INTEL_AVX1)
if (IS_INTEL_AVX1(intel_flags)) {
GCM_generate_m0_avx1(aes->gcm.H, (byte*)aes->gcm.M0);
}
else
#endif
{
GCM_generate_m0_aesni(aes->gcm.H, (byte*)aes->gcm.M0);
}
#endif
}
else
#endif
{
GenerateM0(&aes->gcm);
}
#endif /* GCM_TABLE || GCM_TABLE_4BIT */
}
VECTOR_REGISTERS_POP;
}
if (ret == 0) {
#if defined(GCM_TABLE) || defined(GCM_TABLE_4BIT)
#if defined(WOLFSSL_AESNI) && defined(GCM_TABLE_4BIT)
if (aes->use_aesni) {
#if defined(WC_C_DYNAMIC_FALLBACK)
#ifdef HAVE_INTEL_AVX2
if (IS_INTEL_AVX2(intel_flags)) {
GCM_generate_m0_avx2(aes->gcm.H, (byte*)aes->gcm.M0);
}
else
#endif
#if defined(HAVE_INTEL_AVX1)
if (IS_INTEL_AVX1(intel_flags)) {
GCM_generate_m0_avx1(aes->gcm.H, (byte*)aes->gcm.M0);
}
else
#endif
{
GCM_generate_m0_aesni(aes->gcm.H, (byte*)aes->gcm.M0);
}
#endif
}
else
#endif
{
GenerateM0(&aes->gcm);
}
#endif /* GCM_TABLE || GCM_TABLE_4BIT */
}
#endif /* !FREESCALE_LTC_AES_GCM && !WOLFSSL_PSOC6_CRYPTO */
#endif