Title :
Scan based side channel attack on Grain v1
Author :
Jha, Sumit Kumar
Author_Institution :
Appl. Stat. Unit, Indian Stat. Inst., Kolkata, India
Abstract :
In this paper we study a scan based side channel attack against the Grain family of stream ciphers. The attack works because scan chain test of circuits can be transformed into a powerful cryptographic attack due to the properties of scan based technique. So as a result the attack targets the test circuitry. We show how the attacker gains the knowledge about the locations of internal state bits of the NFSR and the LFSR and how he finds the secret key.
Keywords :
private key cryptography; Grain v1; LFSR; NFSR; attacker gains; internal state bits; powerful cryptographic attack; scan based side channel attack; secret key; stream ciphers; test circuitry; Ciphers; Clocks; Equations; Hardware; Radiation detectors; Registers; Grain v1; LFSR; NFSR; Scan-based side channel attack; Stream ciphers;
Conference_Titel :
Information Security and Cryptology (ISCISC), 2013 10th International ISC Conference on
Conference_Location :
Yazd
DOI :
10.1109/ISCISC.2013.6767320