Results 11 to 20 of about 5,167 (227)
Sequential Aggregate Signatures Made Shorter [PDF]
, 2013 Sequential aggregate signature (SAS) is a special type of public-key signature that allows a signer to add his signature into a previous aggregate signature in sequential order. In this case, since many public keys are used and many signatures are employed and compressed, it is important to reduce the sizes of signatures and public keys.
Kwangsu Lee +2 more
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Sequential Aggregate Signatures from Trapdoor Permutations [PDF]
, 2004 An aggregate signature scheme (recently proposed by Boneh, Gentry, Lynn, and Shacham) is a method for combining n signatures from n different signers on n different messages into one signature of unit length. We propose sequential aggregate signatures, in which the set of signers is ordered. The aggregate signature is computed by having each signer, in
Anna Lysyanskaya +3 more
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History-Free Sequential Aggregate Signatures [PDF]
, 2012 Aggregation schemes allow to combine several cryptographic values like message authentication codes or signatures into a shorter value such that, despite compression, some notion of unforgeability is preserved. Recently, Eikemeier et al. (SCN 2010) considered the notion of history-free sequential aggregation for message authentication codes, where the ...
Marc Fischlin +2 more
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Sequential Aggregate Signatures and Multisignatures Without Random Oracles [PDF]
, 2006 We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive from a novel application of a recent signature scheme due to Waters. Signatures in our aggregate signature scheme are sequentially constructed, but knowledge of the order in ...
Steve Lu 0001 +4 more
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On Key Substitution Attacks Against Aggregate Signatures and Multi-Signatures [PDF]
IEEE AccessThe most fundamental security requirement for signature schemes is unforgeability, which guarantees that no one can create a valid signature on a message without the secret signing key.
Yuuki Fujita +3 more
doaj +2 more sources
Hash-Based Sequential Aggregate and Forward Secure Signature for Unattended Wireless Sensor Networks [PDF]
Proceedings of the 6th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, 2009 Unattended Wireless Sensor Networks (UWSNs) operating in hostile environments face great security and performance challenges due to the lack of continuous real-time communication between senders (sensors) and receivers (e.g., mobile data collectors, static sinks). The lack of real-time communication forces sensors to accumulate the sensed data possibly
Attila Altay Yavuz, Peng Ning
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Sequential Aggregate Signatures with Short Public Keys: Design, Analysis and Implementation Studies [PDF]
, 2013 The notion of aggregate signature has been motivated by applications and it enables any user to compress different signatures signed by different signers on different messages into a short signature. Sequential aggregate signature, in turn, is a special kind of aggregate signature that only allows a signer to add his signature into an aggregate ...
Kwangsu Lee +2 more
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Data Storage Mechanism Based on Blockchain with Privacy Protection in Wireless Body Area Network
Sensors, 2019 Wireless body area networks (WBANs) are expected to play a vital role in the field of patient-health monitoring shortly. They provide a convenient way to collect patient data, but they also bring serious problems which are mainly reflected in the safe ...
Yongjun Ren +4 more
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ISDSR: Secure DSR with ID-based Sequential Aggregate Signature
Proceedings of the 13th International Joint Conference on e-Business and Telecommunications, 2016 Wireless sensor networks are often more vulnerable than wired ones. Especially, an adversary can attack the networks by utilizing false route information. A countermeasure against the attack is a secure routing protocol with digital signatures to guarantee the validity of route information.
Kenta Muranaka +3 more
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History-Free Sequential Aggregation of Hash-and-Sign Signatures [PDF]
A sequential aggregate signature (SAS) scheme allows multiple users to sequentially combine their respective signatures in order to reduce communication costs. Historically, early proposals required the use of trapdoor permutation (e.g., RSA). In recent years, a number of attempts have been made to extend SAS schemes to post-quantum assumptions.
Alessio Meneghetti, Edoardo Signorini
core +6 more sources