By Hans Dobbertin, Vincent Rijmen, Visit Amazon's Aleksandra Sowa Page, search results, Learn about Author Central, Aleksandra Sowa,

ISBN-10: 3540265570

ISBN-13: 9783540265573

This ebook constítutes the completely refereed postproceedings of the 4th overseas convention at the complicated Encryption common, AES 2004, held in Bonn, Germany in may possibly 2004. the ten revised complete papers provided including an introductory survey and four invited papers through prime researchers have been rigorously chosen in the course of rounds of reviewing and development. The papers are equipped in topical sections on cryptanalytic assaults and similar issues, algebraic assaults and similar effects, implementations, and different subject matters. All in all, the papers represent a newest review of the state-of-the-art of information encryption utilizing the complicated Encryption normal AES, the de facto international general for facts encryption.

**Read or Download Advanced Encryption Standard - AES: 4th International Conference, AES 2004, Bonn, Germany, May 10-12, 2004, Revised Selected and Invited Papers PDF**

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**Extra resources for Advanced Encryption Standard - AES: 4th International Conference, AES 2004, Bonn, Germany, May 10-12, 2004, Revised Selected and Invited Papers**

**Example text**

LP t (a, b; kt ) and ELP t (a, b) are LP and ELP values, respectively, for round t (1 ≤ t ≤ T ). Superscripts of the form [i . . 3] (∆x, ∆y) is an EDP value over rounds 1 . . 3. T ] (a, b) . T ] (∆x, ∆y) . (4) For linear cryptanalysis / diﬀerential cryptanalysis, the data complexity of an attack with a given probability of success is proportional to the inverse of the MELP / MEDP. Therefore provable security can be claimed if this value is suﬃciently small that the corresponding data complexity is prohibitive [19, 20].

Unfortunately, the DFA attack on symmetric cryptosystems proposed by Biham and Shamir [4] does not work on the AES. This is why we work to ﬁnd a way to attack the AES by using DFA. ). These external H. Dobbertin, V. Rijmen, A. ): AES 2004, LNCS 3373, pp. 27–41, 2005. c Springer-Verlag Berlin Heidelberg 2005 28 C. Giraud interventions may induce a fault, but we do not know the real impact on the computation inside the card. This is why, in this paper, we use two types of fault models. The ﬁrst fault model assumes that the fault occurs on only one bit of a temporary result.

With another faulty ciphertext, the right value for Mj9 is expected to be counted more frequently than any wrong value, and can thus be identiﬁed. Then we iterate the previous process to obtain all the other bytes of M 9 . Now, as we know the value of the ciphertext C and the value of M 9 , we can easily obtain the last round key K 10 from the formula (1) and consequently the AES key K by applying the inverse of the Key Scheduling to K 10 . By using 3 faulty ciphertexts with faults induced on the same byte of M 9 , we have a 97% chance of having one value left for this byte (cf.

### Advanced Encryption Standard - AES: 4th International Conference, AES 2004, Bonn, Germany, May 10-12, 2004, Revised Selected and Invited Papers by Hans Dobbertin, Vincent Rijmen, Visit Amazon's Aleksandra Sowa Page, search results, Learn about Author Central, Aleksandra Sowa,

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