Key-hiding on the ARM platform
Nilsson, Alexander LU
; Andersson, Marcus
and Axelsson, Stefan
(2014)
In Digital Investigation
11(SUPPL. 1).
- Abstract
To combat the problem of encryption key recovery from main memory using cold boot-attacks, various solutions has been suggested, but most of these have been implemented on the x86 architecture, which is not prevalent in the smartphone market, where instead ARM dominates. One existing solution does exist for the ARM architecture but it is limited to key sizes of 128 bits due to not being able to utilise the full width of the CPU registers used for key storage. We developed a test-implementation of CPU-bound key storage with 256-bit capacity, without using more hardware resources than the previous solution. We also show that access to the key can be restricted for programs executing outside the kernel space.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7385f427-7178-4e2c-af21-07c37a7ff720
- author
- Nilsson, Alexander
LU
; Andersson, Marcus
and Axelsson, Stefan
- publishing date
- 2014-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ARM, Cold-boot, Computer architecture, Cryptography
- in
- Digital Investigation
- volume
- 11
- issue
- SUPPL. 1
- publisher
- Elsevier
- external identifiers
-
- scopus:84899624630
- ISSN
- 1742-2876
- DOI
- 10.1016/j.diin.2014.03.008
- language
- English
- LU publication?
- no
- id
- 7385f427-7178-4e2c-af21-07c37a7ff720
- date added to LUP
- 2019-01-21 15:57:56
- date last changed
- 2024-04-29 23:02:22
@article{7385f427-7178-4e2c-af21-07c37a7ff720,
abstract = {{<p>To combat the problem of encryption key recovery from main memory using cold boot-attacks, various solutions has been suggested, but most of these have been implemented on the x86 architecture, which is not prevalent in the smartphone market, where instead ARM dominates. One existing solution does exist for the ARM architecture but it is limited to key sizes of 128 bits due to not being able to utilise the full width of the CPU registers used for key storage. We developed a test-implementation of CPU-bound key storage with 256-bit capacity, without using more hardware resources than the previous solution. We also show that access to the key can be restricted for programs executing outside the kernel space.</p>}},
author = {{Nilsson, Alexander and Andersson, Marcus and Axelsson, Stefan}},
issn = {{1742-2876}},
keywords = {{ARM; Cold-boot; Computer architecture; Cryptography}},
language = {{eng}},
month = {{01}},
number = {{SUPPL. 1}},
publisher = {{Elsevier}},
series = {{Digital Investigation}},
title = {{Key-hiding on the ARM platform}},
url = {{http://dx.doi.org/10.1016/j.diin.2014.03.008}},
doi = {{10.1016/j.diin.2014.03.008}},
volume = {{11}},
year = {{2014}},
}