منابع مشابه
User Privacy in the Public Bitcoin Blockchain
Bitcoin is a peer-to-peer electronic cash system that maintains a public ledger with all transactions. The public availability of this information has implications for the privacy of the users. The public ledger consists of transactions that transfer funds from a set of inputs to a set of outputs. Both inputs and outputs are linked to Bitcoin addresses. In principle, the addresses are pseudonym...
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Privacy audit logs are used to capture the actions of participants in a data sharing environment in order for auditors to check compliance with privacy policies. However, collusion may occur between the auditors and participants to obfuscate actions that should be recorded in the audit logs. In this paper, we propose a Linked Data based method of utilizing blockchain technology to create tamper...
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Blockchains allow users to transfer money securely to possibly unknown and untrusted counterparties, without requiring a trusted intermediary. Transactions contain the value being transferred, and sender and recipient identifiers (known as addresses) in the clear, meaning that although onchain addresses are unlinked from off-chain identities, monetary movements are easily traceable. We explore ...
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Ring signatures are cryptographic protocols designed to allow any member of a group to produce a signature on behalf of the group, without revealing the individual signer’s identity. This offers group members a level of anonymity not attainable through generic digital signature schemes. We call this property ‘plausible deniability’, or anonymity with respect to an anonymity set. We concentrate ...
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Conventional public key infrastructure (PKI) designs are not optimal and contain security flaws; there is much work underway in improving PKI. The properties given by the Bitcoin blockchain and its derivatives are a natural solution to some of the problems with PKI in particular, certificate transparency and elimination of single points of failure. Recently-proposed blockchain PKI designs are b...
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ژورنال
عنوان ژورنال: Annals of Emerging Technologies in Computing
سال: 2019
ISSN: 2516-029X,2516-0281
DOI: 10.33166/aetic.2019.05.005