1. 华东师范大学信息化办公室,上海 200333
2. 认知无线电与信息处理省部共建教育部重点实验室(桂林电子科技大学),广西 桂林 541004
[ "田玉丹(1990-),女,山东菏泽人,华东师范大学初级网络安全工程师,主要研究方向为信息安全。" ]
[ "韦永壮(1976-),男,广西田阳人,博士,桂林电子科技大学教授,主要研究方向为信息安全。" ]
网络首发:2017-07,
纸质出版:2017-07-15
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田玉丹, 韦永壮. 认证加密模型JAMBU的新分析[J]. 网络与信息安全学报, 2017,3(7):53-57.
Yu-dan TIAN, Yong-zhuang WEI. New cryptanalysis of the authenticated cipher model JAMBU[J]. Chinese Journal of Network and Information Security, 2017, 3(7): 53-57.
田玉丹, 韦永壮. 认证加密模型JAMBU的新分析[J]. 网络与信息安全学报, 2017,3(7):53-57. DOI: 10.11959/j.issn.2096-109x.2017.00177.
Yu-dan TIAN, Yong-zhuang WEI. New cryptanalysis of the authenticated cipher model JAMBU[J]. Chinese Journal of Network and Information Security, 2017, 3(7): 53-57. DOI: 10.11959/j.issn.2096-109x.2017.00177.
根据JAMBU模型的结构特点——相关数据和明文可以相互转化,利用伪造攻击等基本思想提出了“随机数重复利用”的分析方法。结果表明,该分析所需数据复杂度为
<math xmlns="http://www.w3.org/1998/Math/MathML"> <msup> <mn>2</mn> <mrow> <mfrac> <mi>n</mi> <mn>2</mn> </mfrac> </mrow> </msup> </math>
,时间复杂度为
<math xmlns="http://www.w3.org/1998/Math/MathML"> <mn>4</mn><mo>×</mo><msup> <mn>2</mn> <mrow> <mfrac> <mi>n</mi> <mn>2</mn> </mfrac> </mrow> </msup> </math>
。与已有分析结果相比,该分析数据复杂度更低。
Based on the characteristic of JAMBU
a forgery attack by using the principle
where the associated data can be transformed into the plaintext was proposed.It is shown that the attack requires a data complexity of about
<math xmlns="http://www.w3.org/1998/Math/MathML"> <msup> <mn>2</mn> <mrow> <mfrac> <mi>n</mi> <mn>2</mn> </mfrac> </mrow> </msup> </math>
chosen plaintext
and a time complexity of about
<math xmlns="http://www.w3.org/1998/Math/MathML"> <mn>4</mn><mo>×</mo><msup> <mn>2</mn> <mrow> <mfrac> <mi>n</mi> <mn>2</mn> </mfrac> </mrow> </msup> </math>
encryptions.Compared with the previous attack
this attack is more favorable.
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