Security Analysis of a Multi-Receiver Identity-Based Key Encapsulation Mechanism
- Authors
- Park, Jong Hwan; Lee, Dong Hoon
- Issue Date
- 1월-2009
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- key distribution; identity-based key encapsulation; multi-receiver setting
- Citation
- IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, v.E92A, no.1, pp.329 - 331
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
- Volume
- E92A
- Number
- 1
- Start Page
- 329
- End Page
- 331
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120867
- DOI
- 10.1587/transfun.E92.A.329
- ISSN
- 0916-8508
- Abstract
- In INDOCRYPT 2006, Chatterjee and Sarkar suggested a multi-receiver identity-based key encapsulation mechanism that is, secure in the full model without random oracles. Until now, it has been believed that their scheme is the only one to provide such a security feature, while achieving sub-linear size ciphertext. In this letter, we show that their scheme is insecure in the sense that any revoked user can retrieve a message encryption key, even without colluding with other revoked users. Our attack conics from an analysis of a publicly computable surjective function used in the scheme.
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Collections - School of Cyber Security > Department of Information Security > 1. Journal Articles
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