高技术通讯
高技術通訊
고기술통신
HIGH TECHNOLOGY LETTERS
2009年
11期
1142-1147
,共6页
相关性功耗分析(CPA)%差分功耗分析(DPA)%侧信道分析%同步流密码%A5/1%E0%相关系数
相關性功耗分析(CPA)%差分功耗分析(DPA)%側信道分析%同步流密碼%A5/1%E0%相關繫數
상관성공모분석(CPA)%차분공모분석(DPA)%측신도분석%동보류밀마%A5/1%E0%상관계수
correlation power analysis (CPA)%differential power analysis (DPA)%side channel analysis%synchronous stream ciphers%A5/1%E0%correlation coefficient
利用同步流密码的再同步弱点,提出了用相关性功耗分析(CPA)攻击同步流密码的技术,该技术采用统计学中的相关系数来分析密钥并实施攻击.概括了CPA技术的攻击过程,给出了CPA攻击两个同步流密码A5/1和E0的步骤和实验.实验证明,用CPA攻击同步流密码是可行的.最后给出了有效的防御对策来抵抗这种攻击.
利用同步流密碼的再同步弱點,提齣瞭用相關性功耗分析(CPA)攻擊同步流密碼的技術,該技術採用統計學中的相關繫數來分析密鑰併實施攻擊.概括瞭CPA技術的攻擊過程,給齣瞭CPA攻擊兩箇同步流密碼A5/1和E0的步驟和實驗.實驗證明,用CPA攻擊同步流密碼是可行的.最後給齣瞭有效的防禦對策來牴抗這種攻擊.
이용동보류밀마적재동보약점,제출료용상관성공모분석(CPA)공격동보류밀마적기술,해기술채용통계학중적상관계수래분석밀약병실시공격.개괄료CPA기술적공격과정,급출료CPA공격량개동보류밀마A5/1화E0적보취화실험.실험증명,용CPA공격동보류밀마시가행적.최후급출료유효적방어대책래저항저충공격.
This paper presents a novel correlation power analysis ( CPA) against synchronous stream ciphers by taking advantage of their resychronization weaknesses. It uses the statistics correlation coefficient to analyze ciphers. Furthermore, this paper generalizes the technique of CPA, and presents the procedures and experiments of CPA attacks on synchronous stream ciphers A5/1 and E0. The experimental results indicate that CPA attack against synchronous stream cipher devices is feasible. Moreover,this paper suggests the countermeasures that thwart this attack.
