Title :
Multi-rounds masking method against DPA attacks
Author :
Yoshikawa, M. ; Sugiyama, M.
Author_Institution :
Meijo Univ., Meijo, Japan
Abstract :
Information incorporated into LSI, and an internal confidential key of a cryptograph is protected against illegally reading. It has been sufficiently proven that encryption standard algorithms used in cryptographic circuits cannot be decrypted computationally. However, several studies have been advanced on various physical analysis attacks that steal internal information. In particular, differential power analysis (DPA) has become a serious problem in recent years because it cracks security codes by statistically processing the difference in electricity power consumption during LSI operation. This study proposes a new method that is effective for two kinds of DPA attacks; hamming weight DPA and hamming distance DPA. Experimental results prove the validity of the proposed method.
Keywords :
Hamming codes; large scale integration; power consumption; private key cryptography; public key cryptography; LSI; confidential information protection; cryptographic circuits; differential power analysis; electricity power consumption; encryption standard algorithms; hamming distance DPA attacks; hamming weight DPA attacks; internal confidential cryptographic key; multiround masking method; physical analysis attacks; security codes; Algorithm design and analysis; Conferences; Encryption; Hamming distance; Hamming weight; Large scale integration;
Conference_Titel :
Information Reuse and Integration (IRI), 2011 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-0964-7
Electronic_ISBN :
978-1-4577-0965-4
DOI :
10.1109/IRI.2011.6009528
