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Forward-Secure Threshold Signature Schemes

, 2001
We construct forward-secure threshold signature schemes. These schemes have the following property: even if more than the threshold number of players are compromised, it is not possible to forge signatures relating to the past. This property is achieved while keeping the public key fix ed and updating the secret keys at regular intervals.
Michel Abdalla, Sara K. Miner, Chanathip Namprempre   +2 more
core   +3 more sources

A Practical Forward-Secure DualRing

, 2023
Ring signature allows a signer to generate a signature on behalf of a set of public keys, while a verifier can verify the signature without identifying who the actual signer is. In Crypto 2021, Yuen et al. proposed a new type of ring signature scheme called DualRing. However, it lacks forward security.
Nan Li 0007, Yingjiu Li, Atsuko Miyaji, Yangguang Tian, Tsz Hon Yuen   +4 more
openaire   +5 more sources

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Forward-secure ID based digital signature scheme with forward-secure private key generator

Information Sciences, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hyunok Oh
exaly   +2 more sources

Forward Security with Crash Recovery for Secure Logs

ACM Transactions on Privacy and Security, 2023
Logging is a key mechanism in the security of computer systems. Beyond supporting important forward security properties, it is critical that logging withstands both failures and intentional tampering to prevent subtle attacks leaving the system in an inconsistent state with inconclusive evidence. We propose new techniques combining forward
Erik-Oliver Blass, Guevara Noubir
openaire   +1 more source

Forward-secure signatures with untrusted update

Proceedings of the 13th ACM conference on Computer and communications security, 2006
In most forward-secure signature constructions, a program that updates a user's private signing key must have full access to the private key. Unfortunately, these schemes are incompatible with several security architectures including Gnu Privacy Guard (GPG) and S/MIME, where the private key is encrypted under a user password as a "second factor" of ...
Xavier Boyen, Hovav Shacham, Emily Shen, Brent Waters   +3 more
openaire   +2 more sources

On the Tightness of Forward-Secure Signature Reductions

Journal of Cryptology, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Michel Abdalla, Fabrice Benhamouda, David Pointcheval   +2 more
openaire   +4 more sources

Forward-Secure Multi-signatures

2008
In many applications a document needs to be signed by more than one signer. When a signature depends on more than one signer we call it a multi-signature. Further, ordinary digital signatures have an inherent weakness: if the secret key is leaked, then all signatures, even the ones generated before the leak, are no longer trustworthy.
N. R. Sunitha, B. B. Amberker
openaire   +1 more source

Remote Authentication with Forward Security

2006
Password authentication has been accepted as an easy-to-use solution in network environment to protect unauthorized access to a remote server. Although many schemes have been proposed, none of them can achieve survivability in case of compromise of a server.
Zhenchuan Chai, Zhenfu Cao, Rongxing Lu
openaire   +1 more source

Forward-Secure Certificate-Based Encryption

2009 Fifth International Conference on Information Assurance and Security, 2009
Certificate-based encryption (CBE) is a new paradigm which overcomes the shortcomings of traditional public-key encryption (PKE) and identity based encryption (IBE). CBE provides an efficient implicit certificate mechanism to eliminate third-party queries for the certificate status and to simplify the certificate revocation problem in traditional PKI ...
Yang Lu 0001, Jiguo Li 0001
openaire   +1 more source