Multi-party Key Exchange for Unbounded Parties from Indistinguishability Obfuscation

被引：10

作者：

Khurana, Dakshita ^{[1
]}

Rao, Vanishree ^{[2
]}

Sahai, Amit ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Comp Sci, Ctr Encrypted Funct, Los Angeles, CA 90024 USA

[2] PARC, Palo Alto, CA USA

来源：

ADVANCES IN CRYPTOLOGY - ASIACRYPT 2015, PT I | 2015年 / 9452卷

关键词：

FULLY HOMOMORPHIC ENCRYPTION;

D O I：

10.1007/978-3-662-48797-6_3

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Existing protocols for non-interactive multi-party key exchange either (1) support a bounded number of users, (2) require a trusted setup, or (3) rely on knowledge-type assumptions. We construct the first non-interactive key exchange protocols which support an unbounded number of parties and have a security proof that does not rely on knowledge assumptions. Our non-interactive key-exchange protocol does not require a trusted setup and extends easily to the identity-based setting. Our protocols suffer only a polynomial loss to the underlying hardness assumptions.

引用

页码：52 / 75

页数：24

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