Masaki TAKEDA


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)

A Study on Higher Order Differential Attack of Camellia
Takeshi KAWABATA Masaki TAKEDA Toshinobu KANEKO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/01/01
Vol. E86-A  No. 1  pp. 31-36
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Ciphers and Hash Functions
Keyword: 
block cipherchosen plaintext attackhigher order differential attackCamellia
 Summary | Full Text:PDF(535.6KB)

Linear Cryptanalysis by Linear Sieve Method
Masaki TAKEDA Takeshi HAMADE Kazuyuki HISAMATSU Toshinobu KANEKO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/01/25
Vol. E81-A  No. 1  pp. 82-87
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
DESlinear cryptanalysislinear sievemultiple approximation
 Summary | Full Text:PDF(521.2KB)