Abstract
A scan-based side-channel attack is still a real threat against a crypto circuit as well as a hash generator circuit, which can restore secret information by exploiting the scan data obtained from scan chains inside the chip during its processing. In this paper, we propose a scan-based attack method against a hash generator circuit called HMAC-SHA-256. Our proposed method restores the secret information by finding out the correspondence between the scan data obtained from a scan chain and the internal registers in the target HMAC-SHA-256 circuit, even if the scan chain includes registers other than the target hash generator circuit and an attacker does not know well the hash generation timing. Experimental results show that our proposed method successfully restores two secret keys of the HMAC-SHA-256 circuit in at most 6 hours.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE 7th International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2017 |
| Publisher | IEEE Computer Society |
| Pages | 79-84 |
| Number of pages | 6 |
| Volume | 2017-September |
| ISBN (Electronic) | 9781509040148 |
| DOIs | |
| Publication status | Published - 2017 Dec 14 |
| Event | 7th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2017 - Berlin, Germany Duration: 2017 Sep 3 → 2017 Sep 6 |
Other
| Other | 7th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2017 |
|---|---|
| Country | Germany |
| City | Berlin |
| Period | 17/9/3 → 17/9/6 |
Fingerprint
Keywords
- HMAC
- scan-based attack
- SHA-256
- side-channel attack
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
- Media Technology
Cite this
A robust scan-based side-channel attack method against HMAC-SHA-256 circuits. / Oku, Daisuke; Yanagisawa, Masao; Togawa, Nozomu.
2017 IEEE 7th International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2017. Vol. 2017-September IEEE Computer Society, 2017. p. 79-84.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A robust scan-based side-channel attack method against HMAC-SHA-256 circuits
AU - Oku, Daisuke
AU - Yanagisawa, Masao
AU - Togawa, Nozomu
PY - 2017/12/14
Y1 - 2017/12/14
N2 - A scan-based side-channel attack is still a real threat against a crypto circuit as well as a hash generator circuit, which can restore secret information by exploiting the scan data obtained from scan chains inside the chip during its processing. In this paper, we propose a scan-based attack method against a hash generator circuit called HMAC-SHA-256. Our proposed method restores the secret information by finding out the correspondence between the scan data obtained from a scan chain and the internal registers in the target HMAC-SHA-256 circuit, even if the scan chain includes registers other than the target hash generator circuit and an attacker does not know well the hash generation timing. Experimental results show that our proposed method successfully restores two secret keys of the HMAC-SHA-256 circuit in at most 6 hours.
AB - A scan-based side-channel attack is still a real threat against a crypto circuit as well as a hash generator circuit, which can restore secret information by exploiting the scan data obtained from scan chains inside the chip during its processing. In this paper, we propose a scan-based attack method against a hash generator circuit called HMAC-SHA-256. Our proposed method restores the secret information by finding out the correspondence between the scan data obtained from a scan chain and the internal registers in the target HMAC-SHA-256 circuit, even if the scan chain includes registers other than the target hash generator circuit and an attacker does not know well the hash generation timing. Experimental results show that our proposed method successfully restores two secret keys of the HMAC-SHA-256 circuit in at most 6 hours.
KW - HMAC
KW - scan-based attack
KW - SHA-256
KW - side-channel attack
UR - http://www.scopus.com/inward/record.url?scp=85043997278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85043997278&partnerID=8YFLogxK
U2 - 10.1109/ICCE-Berlin.2017.8210596
DO - 10.1109/ICCE-Berlin.2017.8210596
M3 - Conference contribution
AN - SCOPUS:85043997278
VL - 2017-September
SP - 79
EP - 84
BT - 2017 IEEE 7th International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2017
PB - IEEE Computer Society
ER -