New Construction of Identity-based Proxy Re-encryption

Song Luo; Jianbin Hu; Zhong Chen

Paper 2010/444

New Construction of Identity-based Proxy Re-encryption

Song Luo, Jianbin Hu, and Zhong Chen

Abstract

A proxy re-encryption (PRE) scheme involves three parties: Alice, Bob, and a proxy. PRE allows the proxy to translate a ciphertext encrypted under Alice's public key into one that can be decrypted by Bob's secret key. We present a general method to construct an identity-based proxy re-encryption scheme from an existing identity-based encryption scheme. The transformed scheme satisfies the properties of PRE, such as unidirectionality, non-interactivity and multi-use. Moreover, the proposed scheme has master key security, allows the encryptor to decide whether the ciphertext can be re-encrypted.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: Proxy Re-encryption Identity-Based Encryption
Contact author(s): luosong @ infosec pku edu cn
History: 2010-10-03: revised; 2010-08-18: received; See all versions
Short URL: https://ia.cr/2010/444
License: CC BY

BibTeX

@misc{cryptoeprint:2010/444,
      author = {Song Luo and Jianbin Hu and Zhong Chen},
      title = {New Construction of Identity-based Proxy Re-encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/444},
      year = {2010},
      url = {https://eprint.iacr.org/2010/444}
}