Authenticated Data Structures

نویسنده

  • Roberto Tamassia
چکیده

Authenticated data structures are a model of computation where untrusted responders answer queries on a data structure on behalf of a trusted source and provide a proof of the validity of the answer to the user. We present a survey of techniques for designing authenticated data structures and overview their computational efficiency. We also discuss implementation issues and practical applications.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optimal Authenticated Data Structures with Multilinear Forms

Cloud computing and cloud storage are becoming increasingly prevalent. In this paradigm, clients outsource their data and computations to third-party service providers. Data integrity in the cloud therefore becomes an important factor for the functionality of these web services. Authenticated data structures, implemented with various cryptographic primitives, have been widely studied as a means...

متن کامل

On the Cost of Authenticated Data Structures

Authenticated data structures provide a model for data authentication, where answers to queries contain extra information that can produce a cryptographic proof about their validity. In this paper, we study the authentication cost that is associated with this model when authentication is performed through hierarchical cryptographic hashing. We introduce measures that precisely model the computa...

متن کامل

Authenticated Relational Tables and Authenticated Skip Lists

We present a general method, based on the usage of typical DBMS primitives, for maintaining authenticated relational tables. The authentication process is managed by an application external to the DBMS, that stores just one hash information of the authentication structure. The method exploits techniques to represent hierarchical data structures into relational tables and queries that allow an e...

متن کامل

Artemia: a family of provably secure authenticated encryption schemes

Authenticated encryption schemes establish both privacy and authenticity. This paper specifies a family of the dedicated authenticated encryption schemes, Artemia. It is an online nonce-based authenticated encryption scheme which supports the associated data. Artemia uses the permutation based mode, JHAE, that is provably secure in the ideal permutation model. The scheme does not require the in...

متن کامل

Persistent 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...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003