Open AccessIdentity-Based Parallel Key-Insulated Proxy Signature Without Random Oracles
Author(s) -
JianhongChen
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1325/1/012111
Subject(s) - proxy (statistics) , public key cryptography , cryptosystem , identity (music) , computer security , computer science , scheme (mathematics) , signature (topology) , key (lock) , random oracle , theoretical computer science , cryptography , mathematics , encryption , physics , mathematical analysis , geometry , machine learning , acoustics
Exposure of private keys is the dangerous attack in the public key cryptosystems. We put forward an identity-based parallel key-insulated proxy signature (IBPKIPS) scheme to deal with the problem of key exposure in the identity-based proxy signature system. Our IBPKIPS scheme is secure without random oracles. In the IBPKIPS scheme, we use two different helper keys to renew the temporary private keys. Our IBPKIPS scheme is securer and more flexible than the identity-based proxy signature scheme.