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Short Signatures from the Weil Pairing

TLDR
A short signature scheme based on the Computational Diffie-Hellman assumption on certain elliptic and hyperelliptic curves is introduced, designed for systems where signatures are typed in by a human or signatures are sent over a low-bandwidth channel.
Abstract
We introduce a short signature scheme based on the Computational Diffie-Hellman assumption on certain elliptic and hyperelliptic curves. The signature length is half the size of a DSA signature for a similar level of security. Our short signature scheme is designed for systems where signatures are typed in by a human or signatures are sent over a low-bandwidth channel.

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Citations
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Book ChapterDOI

Unlinkability of sanitizable signatures

TL;DR: It is discussed that a sixth property of sanitizable signature schemes may be desirable: unlinkability, which prevents that one can link sanitized message-signature pairs of the same document, thus allowing to deduce combined information about the original document.
Journal ArticleDOI

Privacy-Preserving Attribute-Based Keyword Search in Shared Multi-owner Setting

TL;DR: It is proved that the proposed ABKS-SM systems achieve selective security and resist off-line keyword-guessing attack in the generic bilinear group model, and their performance is evaluated using real-world datasets.
Posted Content

SBFT: a Scalable Decentralized Trust Infrastructure for Blockchains.

TL;DR: SBFT provides a smart contract execution environment based on Ethereum's EVM byte-code that addresses the challenges of scalability and decentralization and shows speedups both in throughput and in latency.
Proceedings Article

PIR-Tor: scalable anonymous communication using private information retrieval

TL;DR: PIR-Tor is proposed, an architecture for the Tor network in which users obtain information about only a few onion routers using private information retrieval techniques, and it is demonstrated that reasonable parameters of the architecture provide equivalent security to that of theTor network.
Journal ArticleDOI

Cloud data integrity checking with an identity-based auditing mechanism from RSA

TL;DR: This paper provides a formal security model for ID-CDIC and proves the security of the construction under the RSA assumption with large public exponents in the random oracle model, which can eliminate the complex certificate management in traditional cloud data integrity checking protocols.
References
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Book

Handbook of Applied Cryptography

TL;DR: A valuable reference for the novice as well as for the expert who needs a wider scope of coverage within the area of cryptography, this book provides easy and rapid access of information and includes more than 200 algorithms and protocols.
Proceedings ArticleDOI

Random oracles are practical: a paradigm for designing efficient protocols

TL;DR: It is argued that the random oracles model—where all parties have access to a public random oracle—provides a bridge between cryptographic theory and cryptographic practice, and yields protocols much more efficient than standard ones while retaining many of the advantages of provable security.
Journal ArticleDOI

Identity-Based Encryption from the Weil Pairing

TL;DR: This work proposes a fully functional identity-based encryption (IBE) scheme based on bilinear maps between groups and gives precise definitions for secure IBE schemes and gives several applications for such systems.
Book

The Arithmetic of Elliptic Curves

TL;DR: It is shown here how Elliptic Curves over Finite Fields, Local Fields, and Global Fields affect the geometry of the elliptic curves.
Journal ArticleDOI

A digital signature scheme secure against adaptive chosen-message attacks

TL;DR: A digital signature scheme based on the computational difficulty of integer factorization possesses the novel property of being robust against an adaptive chosen-message attack: an adversary who receives signatures for messages of his choice cannot later forge the signature of even a single additional message.