A DIFFERENTIAL BOOMERANG ATTACK AGAINST 7-ROUND RIJNDAEL

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GHAEMI BAFGHI A.; SADEGHIYAN BABAK

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: CONFRANCE SALANE ANJOMANE COMPUTER IRAN
Year:2004 | Issue:9

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Title

A DIFFERENTIAL BOOMERANG ATTACK AGAINST 7-ROUND RIJNDAEL

Author(s)

GHAEMI BAFGHI A. | SADEGHIYAN BABAK

Keywords

CRYPTOGRAPHY

BLOCK CIPHER

DIFFERENTIAL CRYPTANALYSIS

DIFFERENTIAL MODEL

RIJNDAEL

AND ANT COLONY TECHNIQUE

Abstract

IN THIS PAPER, WE REPORT ON OUR DESIGN OF A CHOOSEN PLAINTEXT ATTACK WITH WORK FACTOR 2252 TO RECOVER OF THE FIRST AND THE LAST SUBKEYS OF A 7-ROUND RIJNDAEL, WHILE DIFFERENTIAL CRYPTANALYSIS AGAINST RIJNDAEL HAVE BEEN DONE FOR UP TO 6 ROUNDS AND REPORTED IN PUBLISHED PAPERS. WE FOUND A 5-ROUND BOOMERANG CHARACTERISTIC FOR RIJNDAEL, AND DESIGNED A CHOOSEN PLAINTEXT ATTACK BASED ON THIS CHARACTERISTIC, WITH WORK FACTOR 2249 TO RECOVER THE 32 BITS OF THE 1ST ROUND SUBKEY AND THE 32 BITS OF THE 7TH ROUND SUBKEY. WE ALSO DESIGNED SOME SIMMILAR ATTACKS TO RECOVER OTHER BITS OF SUBKEYS OF THE FIRST ROUND AND THE LAST ROUND. THEREFORE THE WORK FACTOR OF THIS CHOOSEN PLAINTEXT ATTACK TO RECOVER ALL BITS OF THE FIRST AND THE LAST SUBKEYS OF A 7-ROUND RIJNDAEL WILL BE 2252, THAT IS LESS THAN EXHAUSTIVE SEARCH. IT MEANES THAT A 7-ROUND RIJNDAEL WILL BE COMPROMISED WITH DIFFERENTIAL BOOMERANG CRYPTANALYSIS.

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APA: Copy

GHAEMI BAFGHI, A., & SADEGHIYAN, BABAK. (2004). A DIFFERENTIAL BOOMERANG ATTACK AGAINST 7-ROUND RIJNDAEL. Confrance Salane Anjomane Computer Iran. SID. https://sid.ir/paper/905577/en

Vancouver: Copy

GHAEMI BAFGHI A., SADEGHIYAN BABAK. A DIFFERENTIAL BOOMERANG ATTACK AGAINST 7-ROUND RIJNDAEL. 2004. Available from: https://sid.ir/paper/905577/en

IEEE: Copy

A. GHAEMI BAFGHI, and BABAK SADEGHIYAN, “A DIFFERENTIAL BOOMERANG ATTACK AGAINST 7-ROUND RIJNDAEL,” presented at the Confrance Salane Anjomane Computer Iran. 2004, [Online]. Available: https://sid.ir/paper/905577/en

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