New models for efficient authenticated dictionaries
نویسندگان
چکیده
منابع مشابه
New models for efficient authenticated dictionaries
We propose models for data authentication which take into account the behavior of the clients who perform queries. Our models reduce the size of the authenticated proof when the frequency of the query corresponding to a given data is higher. Existing models implicitly assume the frequency distribution of queries to be uniform, but in reality, this distribution generally follows Zipf’s law. Our ...
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We present an efficient and practical technique for dynamically maintaining an authenticated dictionary. The main building blocks of our scheme are the skip list data structure and cryptographic associative hash functions. Applications of our work include certificate revocation in public key infrastructure and the the publication of data collections on the Internet.
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هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...
15 صفحه اولAuthenticated Dictionaries for Fresh Attribute Credentials
We describe several schemes for efficiently populating an authenticated dictionary with fresh credentials. The thrust of this effort is directed at allowing for many data authors, called sources, to collectively publish information to a common repository, which is then distributed throughout a network to allow for authenticated queries on this information. Authors are assured of their contribut...
متن کاملPersistent Authenticated Dictionaries and Their Applications
We introduce the notion of persistent authenticated dictionaries, that is, dictionaries where the user can make queries of the type “was element e in set S at time t?” and get authenticated answers. Applications include credential and certificate validation checking in the past (as in digital signatures for electronic contracts), digital receipts, and electronic tickets. We present two data str...
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ژورنال
عنوان ژورنال: Computers & Security
سال: 2015
ISSN: 0167-4048
DOI: 10.1016/j.cose.2015.04.010