Sciweavers

31 search results - page 5 / 7
» Signatures on Randomizable Ciphertexts
Sort
View
WCC
2005
Springer
172views Cryptology» more  WCC 2005»
14 years 28 days ago
Dimension of the Linearization Equations of the Matsumoto-Imai Cryptosystems
Abstract. The Matsumoto-Imai (MI) cryptosystem was the first multivariate public key cryptosystem proposed for practical use. Though MI is now considered insecure due to Patarin...
Adama Diene, Jintai Ding, Jason E. Gower, Timothy ...
JOC
2007
129views more  JOC 2007»
13 years 7 months ago
Formal Proofs for the Security of Signcryption
Signcryption is a public key or asymmetric cryptographic method that provides simultaneously both message confidentiality and unforgeability at a lower computational and communica...
Joonsang Baek, Ron Steinfeld, Yuliang Zheng
INFORMATICALT
2006
177views more  INFORMATICALT 2006»
13 years 7 months ago
Cryptanalysis and Improvement of Practical Convertible Authenticated Encryption Schemes Using Self-Certified Public Keys
A convertible authenticated encryption scheme allows a specified recipient to recover and verify a message simultaneously. Moreover the recipient can prove the dishonesty of the se...
Zuhua Shao
ACISP
2009
Springer
14 years 2 months ago
Building Key-Private Public-Key Encryption Schemes
In the setting of identity-based encryption with multiple trusted authorities, TA anonymity formally models the inability of an adversary to distinguish two ciphertexts correspondi...
Kenneth G. Paterson, Sriramkrishnan Srinivasan
ITNG
2007
IEEE
14 years 1 months ago
An Improved Signcryption Scheme and Its Variation
Signcryption is a new cryptographic primitive which simultaneously provides both confidentiality and authenticity. This paper proposes an improved signcryption scheme and a varia...
Raylin Tso, Takeshi Okamoto, Eiji Okamoto