کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
392730 665154 2014 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identity-based chameleon hashing and signatures without key exposure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Identity-based chameleon hashing and signatures without key exposure
چکیده انگلیسی

The notion of chameleon hash function without key exposure plays an important role in designing secure chameleon signatures. However, all of the existing key-exposure free chameleon hash schemes are presented in the setting of certificate-based systems. In 2004, Ateniese and de Medeiros questioned whether there is an efficient construction for identity-based chameleon hashing without key exposure.In this paper, we propose the first identity-based chameleon hash scheme without key exposure based on the three-trapdoor mechanism, which provides an affirmative answer to the open problem. Moreover, we use the proposed chameleon hash scheme to design an identity-based chameleon signature scheme, which achieves all the desired security properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volume 265, 1 May 2014, Pages 198–210
نویسندگان
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