Results 181 to 190 of about 1,370 (218)
Unlinkability and Real World Constraints in RFID Systems [PDF]
, 2007 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
Yasunobu Nohara, Hiroto Yasuura
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2008 Sixth Annual Conference on Privacy, Security and Trust, 2008
In this paper we present a protocol for unlinkable communication, i.e. where an attacker cannot map the sender and receiver node of a communication. Existing anonymity protocols either do not guarantee unlinkability (e.g. Tor and Mix networks), or produce huge overhead -- the dining cryptographers network causes quadratic number of messages.
Volker Fusenig +3 more
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In this paper we present a protocol for unlinkable communication, i.e. where an attacker cannot map the sender and receiver node of a communication. Existing anonymity protocols either do not guarantee unlinkability (e.g. Tor and Mix networks), or produce huge overhead -- the dining cryptographers network causes quadratic number of messages.
Volker Fusenig +3 more
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NDBIris with Better Unlinkability
2020 IEEE Symposium Series on Computational Intelligence (SSCI), 2020Iris recognition is one of the mainstream biometric recognition methods. Protecting iris data to prevent personal privacy leakage is significant to the popularity of iris recognition. Negative database is a new type of privacy protection technique. We proposed a promising method (called NDBIris) of iris template protection based on negative databases ...
Dongdong Zhao 0001 +3 more
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Unlinkable Delegation of WebAuthn Credentials
2022The W3C's WebAuthn standard employs digital signatures to offer phishing protection and unlinkability on the web using authenticators which manage keys on behalf of users. This introduces challenges when the account owner wants to delegate certain rights to a proxy user, such as to access their accounts or perform actions on their behalf, as delegation
Nick Frymann +2 more
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Conversion Schemes for Unlinkable Signatures That Include Revocable Unlinkability
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2006This paper introduces the concept of "revocable unlinkability" for unlinkable anonymous signatures and proposes a generalized scheme that modifies the signatures to include revocable unlinkability. Revocable unlinkability provides a condition in which multiple messages signed using an unlinkable anonymous signature are unlinkable for anyone except the ...
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Journal of Knot Theory and Its Ramifications, 1996
We will prove that there exists a link consisting of two components, each of which is individually unknotted, such that the link can be split with a single crossing change, however any such crossing change must knot one of the components.
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We will prove that there exists a link consisting of two components, each of which is individually unknotted, such that the link can be split with a single crossing change, however any such crossing change must knot one of the components.
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Proceedings of the Royal Society of London. Series B. Biological Sciences, 1976
Abstract Apart from the hip, the joint at which replacement is most advanced is the knee. Other joints in the lower limb which have been totally replaced include the ankle and talo-navicular joint. In the upper limb the shoulder, elbow, wrist and finger joints have also been replaced.
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Abstract Apart from the hip, the joint at which replacement is most advanced is the knee. Other joints in the lower limb which have been totally replaced include the ankle and talo-navicular joint. In the upper limb the shoulder, elbow, wrist and finger joints have also been replaced.
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DMix: decentralized mixer for unlinkability
2020 2nd Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS), 2020We present a protocol that lets participants operate a decentralized mixer to exchange coins in the Bitcoin blockchain. DMix does not need the election of any leader and respects both the unlinkability and the atomicity properties, so that there is no possibility to correlate addresses or lose funds using the protocol.
Fadi Barbàra, Claudio Schifanella
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Unlinkable serial transactions
1997We present a protocol for unlinkable serial transactions suitable for a variety of network-based subscription services. The protocol prevents the service from tracking the behavior of its customers while protecting the service vendor from abuse due to simultaneous or “cloned” usage from a single subscription.
Paul F. Syverson +2 more
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Mathematical Proceedings of the Cambridge Philosophical Society, 1972
An n-link of multiplicity is a smooth embedding of the disjoint union of μ copies of Sn in Sn+2; is said to be trivial if it extends to a smooth embedding of the disjoint union of μ copies of Dn+1. Let , and Cnμ denote the wedge product of μ copies of S1 and (μ – 1) copies of Sn+1.
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An n-link of multiplicity is a smooth embedding of the disjoint union of μ copies of Sn in Sn+2; is said to be trivial if it extends to a smooth embedding of the disjoint union of μ copies of Dn+1. Let , and Cnμ denote the wedge product of μ copies of S1 and (μ – 1) copies of Sn+1.
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