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On secure outsourcing of cryptographic computations to cloud

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TLDR
This position paper brings out these challenging problems with RFID technology as the use case together with ideas, where applicable, that can provide a direction towards solving the problems.
Abstract
For the past few years, research works on the topic of secure outsourcing of cryptographic computations has drawn significant attention from academics in security and cryptology disciplines as well as information security practitioners. One main reason for this interest is their application for resource constrained devices such as RFID tags. While there has been significant progress in this domain since Hohenberger and Lysyanskaya have provided formal security notions for secure computation delegation, there are some interesting challenges that need to be solved that can be useful towards a wider deployment of cryptographic protocols that enable secure outsourcing of cryptographic computations. This position paper brings out these challenging problems with RFID technology as the use case together with our ideas, where applicable, that can provide a direction towards solving the problems.

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Identity-Based Encryption from the Weil Pairing

TL;DR: This work proposes a fully functional identity-based encryption scheme (IBE) based on the Weil pairing that has chosen ciphertext security in the random oracle model assuming an elliptic curve variant of the computational Diffie-Hellman problem.
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Identity-based cryptosystems and signature schemes

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Ciphertext-Policy Attribute-Based Encryption

TL;DR: A system for realizing complex access control on encrypted data that is conceptually closer to traditional access control methods such as role-based access control (RBAC) and secure against collusion attacks is presented.
Journal ArticleDOI

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TL;DR: An efficient algorithm that preprocesses the exponentiation of a random residue modulo p is presented, which improves the ElGamal signature scheme in the speed of the procedures for the generation and the verification of signatures and also in the bit length of signatures.
Book ChapterDOI

Efficient Identification and Signatures for Smart Cards

TL;DR: An efficient interactive identification scheme and a related signature scheme that are based on discrete logarithms and which are particularly suited for smart cards are presented.
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