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Conversion Schemes for Unlinkable Signatures That Include Revocable Unlinkability
2006
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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Revocable unlinkability provides a condition in which multiple messages signed using an unlinkable anonymous signature are unlinkable for anyone except the unlinkability revocation manager. ...
This paper introduces the concept of "revocable unlinkability" for unlinkable anonymous signatures and proposes a generalized scheme that modifies the signatures to include revocable unlinkability. ...
unlinkable anonymous signatures with revocable unlinkability. ...
doi:10.1093/ietfec/e89-a.1.90
fatcat:lonohdvapngmxbhrmkkc2jm6zq
On the Unlinkability of Fingerprint Shell
2020
Security and Communication Networks
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A cancelable biometric transformation should satisfy four requirements: unlinkability, revocability, noninvertibility, and performance. ...
In this paper, we show that all of the shell fingerprint schemes presented by Moujahdi et al. and Ali et al. do not satisfy the condition of unlinkability. ...
In other words, it is called unlinkability. We use unlinkability, which is more intuitive than diversity. ...
doi:10.1155/2020/8256929
fatcat:pecaorcdgfbexi76ku6gehmfwi
Minimal unlinking pathways as geodesics in knot polynomial space
2020
Communications Physics
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geodesic flows in a suitably defined knot polynomial space, we show that a new measure of topological complexity allows accurate quantification of the probability of decay pathways by selecting the optimal unlinking ...
Surprisingly, similar unlinking patterns were then observed also in classical vortex dynamics, superfluids, and condensates 6, 7 . ...
Fig. 3 3 Alternative unlinking pathways. Paths from torus link T (2, 6) to the unknot T(2,1) (diagram adapted from ref. 2 ). ...
doi:10.1038/s42005-020-00398-y
fatcat:r6bmsbtdnva73fi4k2qecbwb5u
The Impact of Unlinkability on Adversarial Community Detection: Effects and Countermeasures
[chapter]
2010
Lecture Notes in Computer Science
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to learn community membership. ...
community membership in a social network. ...
The property of communication unlinkability offered by current anonymous communication infrastructure only hides the communication endpoints, not the existence of communication. ...
doi:10.1007/978-3-642-14527-8_15
fatcat:pkyya7qn75eericxn3z7curave
An Analysis for Anonymity and Unlinkability for a VoIP Conversation
[chapter]
2010
IFIP Advances in Information and Communication Technology
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Similarly to other Internet applications, VoIP users may desire to be unlinkable with their participated VoIP session records for privacy issues. ...
A RTCP communication generally uses a different communication channel from voice data communication. ...
or callee), each VoIP session is unlinkable. ...
doi:10.1007/978-3-642-14282-6_16
fatcat:65lb5ja4qvexnfe4zrjwdawnri
Unlinkability and Real World Constraints in RFID Systems
2007
Fifth Annual IEEE International Conference on Pervasive Computing and Communications Workshops (PerComW'07)
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Unlinkability, the property that prevents an adversary recognizing whether outputs are from the same user, is an important concept in RFID. ...
There are many proposed schemes that provide unlinkability, however most of the schemes don't consider constraints of the real world. ...
Since RFID Systems utilize wireless communication, an adversary can easily read the IDs of primitive RFID tags. ...
doi:10.1109/percomw.2007.122
dblp:conf/percom/NoharaIY07
fatcat:bbeqo7lzprehhg7ulm77zbqvde
An Efficient On-Line Electronic Cash with Unlinkable Exact Payments
2005
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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For customers' privacy, the e-cash system should satisfy unlinkability, i.e., any pair of payments is unlinkable w.r.t. the sameness of the payer. ...
In an existing offline system with unlinkable exact payments, the customers need massive computations. ...
The merits of the off-line type are that the payment communications are distributed, and that the payments are performed without a global communication channel. ...
doi:10.1093/ietfec/e88-a.10.2769
fatcat:gafg5idba5hfvc6ofypzvtond4
Anonymous and Unlinkable Membership Authentication with Illegal Privilege Transfer Detection
2018
International Journal of Communications, Network and System Sciences
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Communications, Network and System Sciences ...
Security requirements
[12]
[13]
Proposed scheme
Anonymity
Yes
Yes
Yes
Unforgeability
Yes
Yes
Yes
Strong/weak unlinkability
Weak unlinkability
Weak unlinkability
Strong unlinkability ...
doi:10.4236/ijcns.2018.112002
fatcat:qdfp6hurkbguli6hgxsmipb3ue
A Short Verifier-Local Revocation Group Signature Scheme with Backward Unlinkability
2007
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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In this paper, we propose VLR group signature schemes with the backward unlinkability from bilinear maps. ...
Model and Security Definitions We show a model of VLR group signature scheme with backward unlinkability, which is extended from a model of VLR group signature scheme proposed in [7]. Definition 1. ...
Therefore, backward unlinkability is achieved. ...
doi:10.1093/ietfec/e90-a.9.1793
fatcat:7s2vk4oatje6dj4z4qebuajspq
Verifier-Local Revocation Group Signature Schemes with Backward Unlinkability from Bilinear Maps
2007
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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In this paper, we propose VLR group signature schemes with the backward unlinkability from bilinear maps. ...
Model and Security Definitions We show a model of VLR group signature scheme with backward unlinkability, which is extended from a model of VLR group signature scheme proposed in [7]. Definition 1. ...
Therefore, backward unlinkability is achieved. ...
doi:10.1093/ietfec/e90-a.1.65
fatcat:q7u3ctyravgwbldkgap5lbpkzu
Changing effect of the numerator–denominator bias in unlinked data on mortality differentials by education: evidence from Estonia, 2000–2015
2020
Journal of Epidemiology and Community Health
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unlinked estimates reported in this study warn that this type of evidence cannot be readily used for monitoring changes in mortality inequalities. ...
These biases led to substantial distortions in range-type inequality measures, whereas unlinked and linked Gini-type measures showed somewhat closer agreement.ConclusionsThe changing distortions in the ...
For unlinked estimates, education of the deceased stemmed from death records. ...
doi:10.1136/jech-2020-214487
pmid:32699139
fatcat:7qr3nmqmozfvdojebxs7dcflri
Towards Anonymous, Unlinkable, and Confidential Transactions in Blockchain
2018
2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber, Physical and Social Computing (CPSCom) and IEEE Smart Data (SmartData)
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We propose a novel security and privacy-preserving protocol for the blockchain that addresses the limitations of existing approaches, mainly the anonymity and unlinkability of users' identities and the ...
Then our protocol satisfies the unlinkability. ...
This communication is delineated in Figure 2 . This section analyses the privacy and security of our protocol. ...
doi:10.1109/cybermatics_2018.2018.00274
dblp:conf/ithings/SinghHH18
fatcat:lxv4xpeugvertc7jwqhzzoxmeq
Toward Unlinkable ID Management for Multi-Service Environments
Third IEEE International Conference on Pervasive Computing and Communications Workshops
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In this paper, we propose an unlinkable ID management scheme for multi-service environments. ...
Our scheme provides unlinkability of users' accesses against third-party service providers, by preparing different user IDs for each service, and by using cryptographic protocol to exchange the ID between ...
Proceedings of the 3rd Int'l Conf. on Pervasive Computing and Communications Workshops (PerCom 2005 Workshops) 0-7695-2300-5/05 $20.00 © 2005 IEEE ...
doi:10.1109/percomw.2005.84
dblp:conf/percom/NoharaIY05
fatcat:3cgexm36hjfohb2e7adrsy7u7e
Linked versus unlinked hospital discharge data on hip fractures for estimating incidence and comorbidity profiles
2012
BMC Medical Research Methodology
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in community-dwelling older people aged 65+ years and determine the prevalence of comorbidity in patients. ...
Community-dwelling status was defined as living in private residence, supported residential facilities or special accommodation but not in nursing homes. ...
NA -
Table 3 3 Comorbidities in community-dwelling older people hospitalised for fall-related hip fracture by data source Comorbidity
Linked data
Unlinked data
Unlinked data
Unlinked data
Unlinked ...
doi:10.1186/1471-2288-12-113
pmid:22853324
pmcid:PMC3464601
fatcat:xnp5itabonbjdbmkj4vrgijd54
Relative role of border restrictions, case finding and contact tracing in controlling SARS-CoV-2 in the presence of undetected transmission
[article]
2021
medRxiv
pre-print
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At the height of the outbreak, the ratio of missed to notified infections was 34.1 (95%CI 26.0-46.6) but the ratio of unlinked to linked infections was 0.81 (95%CI 0.59-1.36). ...
Methods Combining data on notified local COVID-19 cases with known and unknown sources of infections (i.e. linked and unlinked cases) in Singapore in 2020 with a transmission model, we reconstructed the ...
unlinked cases, unlink). 39 . ...
doi:10.1101/2021.05.05.21256675
fatcat:cvswzmmgjjd3jj3ssxhy3ou7oq
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