منابع مشابه
An Anonymous Endorsement System
The expression of one’s opinion through endorsement is one of the simplest methods of democratic participation. The result of an endorsement can be used to evaluate whether a certain subject should deserve a higher attention. In some cases, the endorsers desire privacy protection. However, conventional paper-based endorsement systems provide neither convenience nor well privacy protection for t...
متن کاملBreaking an Efficient Anonymous Channel
At Eurocrypt 1993, Park, Itoh, and Kurosawa presented an “all/nothing election scheme and anonymous channel”. The schemes are based on the mix-net and the election scheme constructed from this anonymous channel (Chaum 1981). One of the two main improvements is that the messages sent by normal participants are significantly shorter in the two new anonymous channels. However, we show several succ...
متن کاملAn Anonymous Health Care System
As medical records are converted to electronic form, risks of compromise of patients’ privacy increase dramatically. The electronic format makes misuse of many patients’ data much easier, so we must be extremely careful with who has access to this data. At the same time, this move to an electronic approach also gives us opportunities to improve patient privacy by leveraging recent cryptographic...
متن کاملAn Anonymous Credit Card System
Credit cards have many important benefits; however, these same benefits often carry with them many privacy concerns. In particular, the need for users to be able to monitor their own transactions, as well as bank’s need to justify its payment requests from cardholders, entitle the latter to maintain a detailed log of all transactions its credit card customers were involved in. A bank can thus b...
متن کاملAn Anonymous ID-based Encryption Revisited
In 2006, Boyen and Waters proposed an anonymous ID-based encryption. It is impressive that in the scheme the system secret key is a tuple of five numbers. The user’s secret key is also a tuple of five elements. The authors did not explain why it should introduce so many parameters. In this paper, we simulate a general attempt to attack the scheme. It shows us which parameters are essential to t...
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ژورنال
عنوان ژورنال: Journal of Bioethical Inquiry
سال: 2014
ISSN: 1176-7529,1872-4353
DOI: 10.1007/s11673-014-9532-5