Certificateless strong designated verifier multi-signature
Tongxin xuebao, 2016 In order to satisfy the application requirements in the fields of judicial administration,e-government,etc.,the definition and security model for certificateless strong designated verifier multi-signature were proposed.Then,the first certificateless ...
Hong-zhen DU, Qiao-yan WEN
doaj
Strongly Unforgeable Certificateless Signature Resisting Attacks from Malicious-But-Passive KGC [PDF]
, 2017 In digital signature, strong unforgeability requires that an attacker cannot forge a new signature on any previously signed/new messages, which is attractive in both theory and practice.
Wenjie Yang +3 more
core +1 more source
Cryptanalysis and design of signature schemes with identity ambiguity in the standard model
Tongxin xuebao, 2011 The security and flaw of the two anonymous signature schemes called ZLW（2008） and LHMM（2009） were analyzed,where the ZLW scheme couldn’t provide signed message verifiability and the LHMM scheme couldn’t resist on the multiple-known-signature existential ...
ZHANG Ming-wu1 +3 more
doaj
Strong Existential Unforgeability and BUFF Securities of MPC-in-the-Head Signatures [PDF]
NIST started the standardization of additional post-quantum signatures in 2022. Among 40 candidates, a few showed stronger security than existential unforgeability, strong existential unforgeability, and BUFF (beyond unforgeability features) securities ...
Keita Xagawa, Mukul Kulkarni
core
Post quantum proxy signature scheme based on the multivariate public key cryptographic signature
International Journal of Distributed Sensor Networks, 2020 Proxy signature is a very useful technique which allows the original signer to delegate the signing capability to a proxy signer to perform the signing operation.
Jiahui Chen +6 more
doaj +1 more source
Adapting Lyubashevsky's Signature Schemes to the Ring Signature Setting [PDF]
, 2013 International audienceBasing signature schemes on strong lattice problems has been a long standing open issue. Today, two families of lattice-based signature schemes are known: the ones based on the hash-and-sign construction of Gentry et al.; and ...
Fousse, Laurent +11 more
core +1 more source
A Proxy Re-Encryption Scheme with the Unforgeability of Re-Encryption Keys against Collusion Attacks [PDF]
, 2014 Proxy re-encryption (PRE) schemes are cryptosystems which allow a proxy who has a re-encryption key to convert a ciphertext originally encrypted for one party into a ciphertext which can be decrypted by another party. In [1], Hayashi et al.
Tatsuyuki Matsushita, Ryotaro Hayashi
core
Anamorphic Signatures With Dictator and Recipient Unforgeability for Long Messages [PDF]
Anamorphic signatures (Kutylowski {\it et al.}, Crypto\u2723) provide a way to covertly use encryption by hiding ciphertexts inside digital signatures without a dictator noticing.
Benoit Libert, Amit Deo
core
Relations among security notions for undeniable signature schemes
, 2006 In this paper, we conduct a thorough study among various notions of security of undeniable signature schemes and establish some relationships among them.
Swee-Huay Heng +3 more
core +1 more source
A Group Proxy Signature Scheme Based on Key Matrix
工程科学与技术, 2011 :In order to overcome the problems that the existing group proxy signature schemes do not have strong unforgeability and can not resist collusion attack by proxy themselves, a group proxy signature scheme of resisting collusion attack based on key matrix
谷科, 贾维嘉, 姜春林
doaj