Known and Chosen Key Differential Distinguishers for Block Ciphers Josef Pieprzyk joint work with Ivica Nikoli´c, Przemyslaw Sokolowski, and Ron Steinfeld

Source URL: web.spms.ntu.edu.sg

Lattice-Based Threshold-Changeability for Standard Shamir Secret-Sharing Schemes Ron Steinfeld, Huaxiong Wang, and Josef Pieprzyk Dept. of Computing, Macquarie University, North Ryde, Australia {rons,hwang,josef}@ics.mq.

Source URL: www.iacr.org

Finding good differential patterns for attacks on SHA-1 Krystian Matusiewicz and Josef Pieprzyk Centre for Advanced Computing - Algorithms and Cryptography, Department of Computing, Macquarie University, Sydney, NSW 2109

Source URL: eprint.iacr.org

• SHA-1
• MD4
• MD5
• Differential cryptanalysis
• RIPEMD
• Hamming weight
• A5/1
• ICE
• Hash function
• Cryptography
• Error detection and correction
• Cryptographic hash functions

20th Australasian Conference on Information Security & Privacy (ACISP[removed]SPONSORSHIP PROSPECTUS 29 June - 1 July 2015

Source URL: www.acisp2015.qut.edu.au

• Association of Commonwealth Universities
• Queensland University of Technology
• Josef Pieprzyk

Efficient One-time Proxy Signatures Huaxiong Wang and Josef Pieprzyk Centre for Advanced Computing – Algorithms and Cryptography Department of Computing Macquarie University Sydney, NSW 2109, AUSTRALIA

Source URL: www.iacr.org

• Lamport signature
• Signature
• Ergo Proxy
• Blind signature
• ElGamal signature scheme
• Cryptography
• Group signature
• Digital signature