TY - GEN
T1 - Dm-x
T2 - 8th ACM Asia Pacific Conference on Systems, APSys 2017
AU - Chakraborti, Anrin
AU - Jain, Bhushan
AU - Kasiak, Jan
AU - Zhang, Tao
AU - Porter, Donald
AU - Sion, Radu
N1 - Publisher Copyright:
© 2017 Association for Computing Machinery.
PY - 2017/9/2
Y1 - 2017/9/2
N2 - The verified boot feature in recent Android devices, which deploys dm-verity, has been overwhelmingly successful in eliminating the extremely popular Android smart phone rooting movement [25]. Unfortunately, dm-verity integrity guarantees are read-only and do not extend to writable volumes. This paper introduces a new device mapper, dm-x, that efficiently (fast) and reliably (metadata journaling) assures volume-level integrity for entire, writable volumes. In a direct disk setup, dm-x overheads are around 6-35% over ext4 on the raw volume while offering additional integrity guarantees. For cloud storage (Amazon EBS), dm-x overheads are negligible.
AB - The verified boot feature in recent Android devices, which deploys dm-verity, has been overwhelmingly successful in eliminating the extremely popular Android smart phone rooting movement [25]. Unfortunately, dm-verity integrity guarantees are read-only and do not extend to writable volumes. This paper introduces a new device mapper, dm-x, that efficiently (fast) and reliably (metadata journaling) assures volume-level integrity for entire, writable volumes. In a direct disk setup, dm-x overheads are around 6-35% over ext4 on the raw volume while offering additional integrity guarantees. For cloud storage (Amazon EBS), dm-x overheads are negligible.
UR - https://www.scopus.com/pages/publications/85030527068
U2 - 10.1145/3124680.3124732
DO - 10.1145/3124680.3124732
M3 - Conference contribution
AN - SCOPUS:85030527068
T3 - Proceedings of the 8th Asia-Pacific Workshop on Systems, APSys 2017
BT - Proceedings of the 8th Asia-Pacific Workshop on Systems, APSys 2017
PB - Association for Computing Machinery, Inc
Y2 - 2 September 2017
ER -