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Paper 2010/444
New Construction of Identity-based Proxy Re-encryption
Song Luo and 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-encryptionIdentity-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
