mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2024-11-22 20:06:40 +00:00
Code Issues Releases Activity

exo: fix SE aes-ctr usage in GetSecureData

Browse source
This commit is contained in:
Michael Scire 2021-07-16 10:55:49 -07:00
parent bd6155bcb4
commit 0c41489f01
1 changed files with 13 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
exosphere/program/source/smc/secmon_smc_aes.cpp
View file

@ -272,7 +272,19 @@ namespace ams::secmon::smc {
void GetSecureDataImpl(u8 *dst, SecureData which, bool tweak) {
/* Compute the appropriate AES-CTR. */
se::ComputeAes128Ctr(dst, AesKeySize, pkg1::AesKeySlot_Device, SecureDataSource, AesKeySize, GetSecureDataCounter(which), AesKeySize);
{
/* Ensure that the SE sees consistent data. */
hw::FlushDataCache(dst, AesKeySize);
hw::DataSynchronizationBarrierInnerShareable();
/* Perform the appropriate AES operation. */
se::ComputeAes128Ctr(dst, AesKeySize, pkg1::AesKeySlot_Device, SecureDataSource, AesKeySize, GetSecureDataCounter(which), AesKeySize);
hw::DataSynchronizationBarrierInnerShareable();
/* Ensure the CPU sees consistent data. */
hw::FlushDataCache(dst, AesKeySize);
hw::DataSynchronizationBarrierInnerShareable();
}
/* Tweak, if we should. */
if (tweak) {