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Published in:
2003 | OriginalPaper | Chapter
DPA Countermeasures by Improving the Window Method
Authors : Kouichi Itoh, Jun Yajima, Masahiko Takenaka, Naoya Torii
Published in: Cryptographic Hardware and Embedded Systems - CHES 2002
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
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We propose three differential power analysis (DPA) countermeasures for securing the public key cryptosystems. All countermeasures are based on the window method, and can be used in both RSA and elliptic curve cryptosystems (ECC). By using the optimal countermeasure, performance penalty is small. In comparison with k-ary method, computation time of our countermeasure is only 105% in 1024-bit RSA and 119% in 160-bit ECC.