Results 241 to 250 of about 24,314 (291)

Security Arguments for Digital Signatures and Blind Signatures

Journal of Cryptology, 2000
This paper proves the security of a large class of signature schemes in the so-called random oracle model. This model assumes that the hash function used in a signature scheme behaves as a random function. However, it has been shown that there exist (contrived) schemes that are provably secure in the random oracle model, but not when used with a real ...
David Pointcheval, Jacques Stern
openaire   +1 more source

Certificateless signature and blind signature

Journal of Electronics (China), 2008
Certificateless public key cryptography is a new paradigm introduced by Al-Riyami and Paterson. It eliminates the need of the certificates in traditional public key cryptosystems and the key escrow problem in IDentity-based Public Key Cryptography (ID-PKC).
Lei Zhang, Futai Zhang
openaire   +1 more source

Rerandomizable Threshold Blind Signatures

2015
This paper formalizes the concept of threshold blind signatures (TBS) that bridges together properties of the two well-known signature flavors, blind signatures and threshold signatures. Using TBS users can obtain signatures through interaction with t-out-of-n signers without disclosing the corresponding message to any of them.
Veronika Kuchta, Mark Manulis
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Blind Quantum Signature with Blind Quantum Computation

International Journal of Theoretical Physics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Wei, Shi, Ronghua, Guo, Ying
openaire   +1 more source

An Efficient ID Based Proxy Signature, Proxy Blind Signature and Proxy Partial Blind Signature

2008 International Conference on Information Technology, 2008
Identity-based (ID based) public key cryptosystem gives an efficient alternative for key management as compared to certificate based public key settings. A proxy signature is a method for an entity to delegate signing capabilities to other participants so that they can sign on behalf of the entity with in a given context.
Banshidhar Majhi, Deepak Kumar Sahu, RamNarayan Subudhi   +2 more
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Untraceability of Partial Blind and Blind Signature Schemes

2020
Blind Signature is employed in privacy related protocols, where signer signs on a blinded message. It provides anonymity in various cryptographic applications such as electronic voting, digital cash system etc. Concerning the need for quantum resistant scheme, Ruckert and Tian et al.
Swati Rawal, Sahadeo Padhye
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On the Complexity of Blind Signatures

2010
Blinde Signaturen ähneln einem Briefumschlag, der aus Kohlepapier besteht. Der Sig- nierer (Sender) unterschreibt dabei auf diesem Kohlepapier, ohne das im Briefumschlag liegende Dokument zu sehen. Danach erhält der Empfänger den Briefumschlag und somit die unterschriebene Nachricht.
openaire   +2 more sources

On blind signatures and perfect crimes

Computers & Security, 1992
David Chaum has introduced the idea of blind signatures, an extension of the concept of digital signatures, as a way to protect the identity and privacy of a user in electronic payment and service networks. Blind signatures also prevent so-called ''dossier creation'' about users by organizations.
Sebastiaan H. von Solms, David Naccache
openaire   +1 more source

Blind Signature System

1984
A cryptographic system allows, in one exemplary use, a supplier (101) to cryptographically transform a plurality of messages responsive to secret keys; the transformed messages to be digitally signed by a signer (102); and the signed transformed messages returned to the supplier (101) to be transformed by the supplier (101), responsive to the same ...
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A Blind Signature Protocol with Exchangeable Signature Sequence

International Journal of Theoretical Physics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources