@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00086735,
 author = {響, 崇史 and 本間, 尚文 and 青木, 孝文 and 仲野, 有登 and 福島, 和英 and 清本, 晋作 and 三宅, 優 and Takafumi, Hibiki and Naofumi, Homma and Takafumi, Aoki and Yuto, Nakano and Kazuhide, Fukushima and Shinsaku, Kiyomoto and Yutaka, Miyake},
 book = {コンピュータセキュリティシンポジウム2012論文集},
 issue = {3},
 month = {Oct},
 note = {ストリーム暗号KCipher-2への電力解析攻撃対策とその評価について述べる．まず，KCipher-2への電力解析攻撃について概説する．次に，乱数マスキングに基づく対策手法を提案する．提案手法では，非線形関数部の整数演算，Sub関数およびレジスタL1，L2部分にマスクをかけ，L2の出力とFSR-Bでアンマスクを行う．本稿では，90nm-CMOSテクノロジを用いた場合の性能を示し，SASEBO-GIIを用いた攻撃実験によりその有効性を示す．整数演算およびSub関数のアルゴリズムとマスク方法を適切に設計・適用し，対策による面積と遅延の増加をそれぞれ1.5倍，2.5倍程度に抑えられることを示す．, This paper presents a countermeasure against power analysis attacks on a stream cipher KCipher-2 and its evaluation. The proposed concept is to mask intermediate data passing through internal registers L1 and L2 in the non-linear function part, and then unmask the data at the outputs of L2 and FSR-B.  We evaluate the performance of the proposed method through ASIC implementations on a 90 nm CMOS technology. Compared with the unprotected design, the performance overheads in circuit area and delay are increased at most 1.5 and 2.5 times, respectively. We also demonstrate the effectiveness of the countermeasure with a SASEBO-GII platform.},
 pages = {749--756},
 publisher = {情報処理学会},
 title = {KCipher-2への電力解析攻撃対策とその評価},
 volume = {2012},
 year = {2012}
}