Chinese Journal of Network and Information Security ›› 2017, Vol. 3 ›› Issue (7): 53-57.doi: 10.11959/j.issn.2096-109x.2017.00177

• Papers • Previous Articles     Next Articles

New cryptanalysis of the authenticated cipher model JAMBU

Yu-dan TIAN1,Yong-zhuang WEI2   

  1. 1 Information Technology Services Center,East China Normal University,Shanghai 200333,China
    2 Key Laboratory of Cognitive Radio and Information Processing Ministry of Education,(Guilin University of Electronic Technology),Guilin 541004,China
  • Revised:2017-06-10 Online:2017-07-01 Published:2017-08-01
  • Supported by:
    Guangxi Wireless Broadband Communication and Signal Processing Laboratory Director of Foundation(GXKL061510)

Abstract:

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 2 n 2 chosen plaintext,and a time complexity of about 4× 2 n 2 encryptions.Compared with the previous attack,this attack is more favorable.

Key words: JAMBU, forgery attack, CAESAR, authenticated encryption

CLC Number: 

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