3 ms·
Hardly. x86 and ARM follow similar security underpinnings and outcomes. ARM has TrustZone, x86 has TEEs. I cannot think of a single attack demonstrated on x86 a
by ngneer 2y ago
Hardly. x86 and ARM follow similar security underpinnings and outcomes. ARM has TrustZone, x86 has TEEs. I cannot think of a single attack demonstrated on x86 and not on ARM or vice versa. Could you please cite one?
- astrange 2y agoWho cares about TrustZone? x86 doesn't have PAC or MTE.
- ngneer 2y agoARM/IoT community: https://community.arm.com/support-forums/f/architectures-and-processors-forum/7983/a-couple-of-use-cases-for-trustzone-for-armv8-m https://community.arm.com/support-forums/f/architectures-and... https://community.arm.com/arm-community-blogs/b/internet-of-things-blog/posts/security-scenarios-addressed-by-arm-cortex-m23-and-cortex-m33 https://community.arm.com/arm-community-blogs/b/internet-of-... Security practitioners and academics: https://github.com/enovella/TEE-reversing/ https://github.com/enovella/TEE-reversing/ https://media.ccc.de/v/36c3-10859-trustzone-m_eh_breaking_armv8-m_s_security https://media.ccc.de/v/36c3-10859-trustzone-m_eh_breaking_ar... https://www.blackhat.com/docs/us-15/materials/us-15-Shen-Attacking-Your-Trusted-Core-Exploiting-Trustzone-On-Android-wp.pdf https://www.blackhat.com/docs/us-15/materials/us-15-Shen-Att... https://i.blackhat.com/USA-19/Thursday/us-19-Peterlin-Breaking-Samsungs-ARM-TrustZone.pdf https://i.blackhat.com/USA-19/Thursday/us-19-Peterlin-Breaki... Sorry you could not cite an attack demonstrated on x86 and not on ARM or vice versa. Well, maybe TikTag (https://github.com/compsec-snu/tiktag https://github.com/compsec-snu/tiktag) was demonstrated against ARM MTE, since you mention, and Pacman (https://pacmanattack.com/ https://pacmanattack.com/) against PAC. I was hoping for an actual response, no offense.