IEICE TRANSACTIONS on Fundamentals
Anonymous Identity Based Encryption with Plaintext Awareness in the Two Identities Setting
Summary :
An anonymous identity based encryption (anonymous IBE) scheme requires that an adversary can not determine the identity of the recipient from a ciphertext encrypted by the corresponding public key. The anonymity was formalized in previous works [1],[13], and this can be considered under chosen plaintext attack and adaptive chosen ciphertext attack, yielding two notions of security, ID-II-CPA and ID-II-CCA, where II denotes "indistinguishability of identities." However, how to obtain an ID-II-CCA secure anonymous IBE in the random oracle model is still a challenging problem. We firstly propose a new notion of plaintext awareness in the two identities setting, called PATI. Secondly, we prove that the IBE scheme is ID-II-CCA secure if it is PATI secure. Finally, we propose the first generic conversion for anonymous IBE from ID-II-CPA to ID-II-CCA in the random oracle model.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E91-A No.12 pp.3828-3832
- Publication Date
- 2008/12/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1093/ietfec/e91-a.12.3828
- Type of Manuscript
- LETTER
- Category
- Cryptography and Information Security
Authors
Keyword
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Changlu LIN, Yong LI, Qiupu ZHANG, Dingfeng YE, "Anonymous Identity Based Encryption with Plaintext Awareness in the Two Identities Setting" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 12, pp. 3828-3832, December 2008, doi: 10.1093/ietfec/e91-a.12.3828.
Abstract: An anonymous identity based encryption (anonymous IBE) scheme requires that an adversary can not determine the identity of the recipient from a ciphertext encrypted by the corresponding public key. The anonymity was formalized in previous works [1],[13], and this can be considered under chosen plaintext attack and adaptive chosen ciphertext attack, yielding two notions of security, ID-II-CPA and ID-II-CCA, where II denotes "indistinguishability of identities." However, how to obtain an ID-II-CCA secure anonymous IBE in the random oracle model is still a challenging problem. We firstly propose a new notion of plaintext awareness in the two identities setting, called PATI. Secondly, we prove that the IBE scheme is ID-II-CCA secure if it is PATI secure. Finally, we propose the first generic conversion for anonymous IBE from ID-II-CPA to ID-II-CCA in the random oracle model.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.12.3828/_p
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@ARTICLE{e91-a_12_3828,
author={Changlu LIN, Yong LI, Qiupu ZHANG, Dingfeng YE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Anonymous Identity Based Encryption with Plaintext Awareness in the Two Identities Setting},
year={2008},
volume={E91-A},
number={12},
pages={3828-3832},
abstract={An anonymous identity based encryption (anonymous IBE) scheme requires that an adversary can not determine the identity of the recipient from a ciphertext encrypted by the corresponding public key. The anonymity was formalized in previous works [1],[13], and this can be considered under chosen plaintext attack and adaptive chosen ciphertext attack, yielding two notions of security, ID-II-CPA and ID-II-CCA, where II denotes "indistinguishability of identities." However, how to obtain an ID-II-CCA secure anonymous IBE in the random oracle model is still a challenging problem. We firstly propose a new notion of plaintext awareness in the two identities setting, called PATI. Secondly, we prove that the IBE scheme is ID-II-CCA secure if it is PATI secure. Finally, we propose the first generic conversion for anonymous IBE from ID-II-CPA to ID-II-CCA in the random oracle model.},
keywords={},
doi={10.1093/ietfec/e91-a.12.3828},
ISSN={1745-1337},
month={December},}
Copy
TY - JOUR
TI - Anonymous Identity Based Encryption with Plaintext Awareness in the Two Identities Setting
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3828
EP - 3832
AU - Changlu LIN
AU - Yong LI
AU - Qiupu ZHANG
AU - Dingfeng YE
PY - 2008
DO - 10.1093/ietfec/e91-a.12.3828
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2008
AB - An anonymous identity based encryption (anonymous IBE) scheme requires that an adversary can not determine the identity of the recipient from a ciphertext encrypted by the corresponding public key. The anonymity was formalized in previous works [1],[13], and this can be considered under chosen plaintext attack and adaptive chosen ciphertext attack, yielding two notions of security, ID-II-CPA and ID-II-CCA, where II denotes "indistinguishability of identities." However, how to obtain an ID-II-CCA secure anonymous IBE in the random oracle model is still a challenging problem. We firstly propose a new notion of plaintext awareness in the two identities setting, called PATI. Secondly, we prove that the IBE scheme is ID-II-CCA secure if it is PATI secure. Finally, we propose the first generic conversion for anonymous IBE from ID-II-CPA to ID-II-CCA in the random oracle model.
ER -
English
