Special Section on Cryptography and Information Security
========================================================
 . FOREWORD .......................................................... 1
        Eiji OKAMOTO

PAPERS
======
 . One-Time Zero-Knowledge Authentications and Their Applications to
   Untraceable Electronic Cash ....................................... 2
        Tatsuaki OKAMOTO and Kazuo OHTA

 . Practical Escrow Cash Schemes .................................... 11
        Eiichiro FUJISAKI and Tatsuaki OKAMOTO

 . Secure Electronic Sealed-Bid Auction Protocol with Public Key
   Cryptography ..................................................... 20
        Michiharu KUDO

 . Group Cipher System for Intranet Security ........................ 28
        Hiromichi ITO, Seiichi SUSAKI, Masato ARAI, Minoru KOIZUMI, and
        Kazuo TAKARAGI

 . Collision Search of a Hash Function by Using Random Mapping ...... 35
        Hikaru MORITA, Hideki ODAGI, and Kazuo OHTA

 . Generalization of Higher Order SAC to Vector Output Boolean
   Functions ........................................................ 41
        Kaoru KUROSAWA and Takashi SATOH

 . One-Time Digital Signature and Pseudo k-Time Digital Signature ... 48
        Hiroshi MIYANO

 . Anonymous Public Key Certificates and their Applications ......... 56
        Kazuomi OISHI, Masahiro MAMBO, and Eiji OKAMOTO

 . Security of the Extended Fiat-Shamir Schemes ..................... 65
        Kazuo OHTA and Tatsuaki OKAMOTO

 . Window and Extended Window Methods for Addition Chain and
   Addition-Subtraction Chain ....................................... 72
        Noboru KUNIHIRO and Hirosuke YAMAMOTO

 . Linear Cryptanalysis by Linear Sieve Method ...................... 82
        Masaki TAKEDA, Takeshi HAMADE, Kazuyuki HISAMATSU, and
        Toshinobu KANEKO

 . Linear Cryptanalysis of FEAL ..................................... 88
        Kazumaro AOKI, Kazuo OHTA, Shiho MORIAI, and Mitsuru MATSUI

 . The Best Differential Characteristic Search of FEAL .............. 98
        Kazumaro AOKI, Kunio KOBAYASHI, and Shiho MORIAI

LETTERS
=======
 . Comment on gOn the One-Way Algebraic Homomorphismh ............ 105
        Li XIAOJIE and Yi Xian YANG

 . Addend Dependency of Differential/Linear Probability of Addition  106
        Hiroshi MIYANO

Regular Section
===============
PAPERS
======
[Analog Signal Processing]

 . Neuron-MOS E10035VTE10034 Cancellation Circuit and Its Application
   to a Low-Power and High-Swing Cascode Current Mirror ............ 110
        Koichi TANNO, Jing SHEN, Okihiko ISHIZUKA, and Zheng TANG

[Digital Signal Processing]

 . Two Types of Adaptive Beamformer Using 2-D Joint Process Lattice
   Estimator ....................................................... 117
        Tateo YAMAOKA, Takayuki NAKACHI, and Nozomu HAMADA

 . A New Linear Prediction Filter Based Adaptive Algorithm For IIR ADF
   Using Allpass and Minimum Phase System .......................... 123
        James OKELLO, Yoshio ITOH, Yutaka FUKUI, and Masaki KOBAYASHI

 . Oversampling Theorem for Wavelet Subspace ....................... 131
        Wen CHEN and Shuichi ITOH

[Graphs and Networks]

 . A New Algorithm for E10035pE10034-Collection Problem on a Tree-Type
   Flow Network .................................................... 139
        Shuji TSUKIYAMA

[Information Security]

 . Generalized Permutation Alphabets and Generating Groups ......... 147
        The Cuong DINH and Takeshi HASHIMOTO

 . Efficient Key Exchange and Authentication Protocols Protecting Weak
   Secrets ......................................................... 156
        Taekyoung KWON and Jooseok SONG

[Concurrent Systems]

 . Minimum Number of Live Minimal Structural Traps to Make a Minimal
   Deadlock Locally Live in General Petri Nets ..................... 164
        Tadashi MATSUMOTO and Ken SAIKUSA

[Neural Networks]

 . Learning Algorithms Using Firing Numbers of Weight Vectors for WTA
   Networks in Rotation Invariant Pattern Classification ........... 175
        Shougang REN, Yosuke ARAKI, Yoshitaka UCHINO, and Shuichi
        KUROGI

[Image Theory]

 . Selective Coding Scheme for Reconstructing an Interest Region with
   High Quality .................................................... 183
        Jong-Bae LEE and Seong-Dae KIM

LETTERS
=======
[Digital Signal Processing]

 . A Perfect-Reconstruction Encryption Scheme by Using Periodically
   Time-Varying Digital Filters .................................... 192
        Xuedong YANG, Masayuki KAWAMATA, and Tatsuo HIGUCHI

[Systems and Control]

 . A New Nonlinear Integrator with Positive Phase Shifts ........... 197
        Andong SHENG, Satoshi YAMAGUCHI, and Hidekiyo ITAKURA

 . ABSTRACTS (IEICE Trans., Vol.J81-A, No.1 in Japanese) ........... 202
 . Errata (Vol.E80-A, No.12 1997 INDEX) ............................ 207