Yasuo HATANO


A Strength Evaluation of a Pseudorandom Number Generator MUGI against Linear Cryptanalysis
Hiroki SEKINE Tetsuro NOSAKA Yasuo HATANO Masaki TAKEDA Toshinobu KANEKO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/01/01
Vol. E88-A  No. 1  pp. 16-24
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Cryptography
Keyword: 
truncated linear cryptanalysisstream cipherpseudorandom number generatorMUGI
 Summary | Full Text:PDF(727.6KB)

Optimization for the Algebraic Method and Its Application to an Attack of MISTY1
Yasuo HATANO Hidema TANAKA Toshinobu KANEKO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/01/01
Vol. E87-A  No. 1  pp. 18-27
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cipher
Keyword: 
MISTY1higher order differential attackalgebraic methodlinear dependencyprobabilistic attack equation
 Summary | Full Text:PDF(458.6KB)