Advances in Cryptology — CRYPTO’ 92: 12th Annual by Jurjen N. E. Bos, David Chaum (auth.), Ernest F. Brickell

By Jurjen N. E. Bos, David Chaum (auth.), Ernest F. Brickell (eds.)

Crypto'92 came about on August 16-20, 1992. It used to be the 12th within the sequence of annual cryptology meetings hung on the attractive campus of the college of California, Santa Barbara. once more, it was once backed through the overseas organization for Cryptologic study, in cooperation with the IEEE machine Society Technical Committee on safeguard and privateness. The convention ran easily, as a result of the diligent efforts of the g- eral chair, Spyros Magliveras of the collage of Nebraska. one of many measures of the luck of this sequence of meetings is represented by means of the ever expanding variety of papers submitted. This yr, there have been one hundred thirty five submissions to the c- ference, which represents a brand new checklist. Following the perform of contemporary application comm- tees, the papers obtained nameless evaluation. this system committee permitted 38 papers for presentation. moreover, there have been invited shows, one by means of Miles Smid at the electronic Signature typical, and one through Mike Fellows on proposing the suggestions of cryptology to elementary-age scholars. those lawsuits comprises those forty papers plus three papers that have been provided on the Rump consultation. i need to thank all the authors of the submitted papers and the entire audio system who provided papers. i want to precise my honest appreciation to the paintings of this system committee: Ivan Damgard (Aarhus college, Denmark), extraordinary Goldreich (Technion, Israel), Burt Kaliski (RSA info defense, USA), Joe Kilian (NEC, USA).

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Additional info for Advances in Cryptology — CRYPTO’ 92: 12th Annual International Cryptology Conference Santa Barbara, California, USA August 16–20, 1992 Proceedings

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Z ( v , q 1 , 9 2 , p , 4 ) . ; y2 = r? ; y, ri + es; + es; (mod p ) . (mod q ) , (mod q ) In addition, the distributions of ( r l . ) and (r;. ra) are exactly equivalent even if they satisfy the above relation. ,), 39 -- -- which is calculated by P by simulating the operations of ( A ,B ) and ( A ,a),is independent from (sy sa). ). s2) and (s;,~;) such that a = (sl - s;)/(s; - s z } mod q . The total S U C C ~ S Sprobability of P is nonnegligible This contradicts the intractability assumption of the discrete logarithm.

33 “no transferable information with (sharp threshold) security level,” which characterizes the security level theoretically. Therefore, only “no-useful information transfer” [FFS] and its variant [Oh011 have been known to be effective to prove the security of three-move identification schemes. Only three three-move identification schemes [FFS, O h 0 1 , BMI] have been proven t,o be secure assuming reasonable primitive problems, in the sense of [FFS, OhOI]. The Feige-Fiat-Shamir identification scheme [FFS], based on square root mod n , h a s been proven to be as secure as the factoring problem.

R)as well as ( 2 , B )So, . B), ( x . e , y l , y 2 ) and ( c , e ’ , g i , y ; ) (e # e‘). e. greater than 2-‘+’. $)/(e e‘) mod 4 ) by I I . B), y1 = r1 + esl mod q . + e s 2 mod y , yb = r 2 + e’s2 mod q . yz = r 2 + e‘sl mod /I, yi = r l There are q soliitions of ( s i ,s 2 ) w h i c h satisfy u = g;”’g~sz mod p , giveii B cannot determine from L ‘ S , yl’s, and y2’s sent by 3 during t h e execut,ion of ( A ) B ) which (sl, s2) satisfying 21 = g i 3 1 g 2 s 2mod p actually uses. To prove this, for two different solut,ions.

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