Fully Homomorphic Distributed Identity-based Encryption Resilient to Continual Auxiliary Input Leakage

2018 ◽  
Author(s):  
François Gérard ◽  
Veronika Kuchta ◽  
Rajeev Anand Sahu ◽  
Gaurav Sharma ◽  
Olivier Markowitch
Keyword(s):  
Identity Based Encryption ◽  
Identity Based ◽  
Auxiliary Input

scholarly journals Deterministic Identity-Based Encryption from Lattice-Based Programmable Hash Functions with High Min-Entropy

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Daode Zhang ◽  
Jie Li ◽  
Bao Li ◽  
Xianhui Lu ◽  
Haiyang Xue ◽  
...  
Keyword(s):  
Hash Functions ◽  
The Other ◽  
Public Key ◽  
Identity Based Encryption ◽  
Other Hand ◽  
Identity Based ◽  
Learning With Errors ◽  
The One ◽  
Auxiliary Input

There only exists one deterministic identity-based encryption (DIBE) scheme which is adaptively secure in the auxiliary-input setting, under the learning with errors (LWE) assumption. However, the master public key consists of O(λ) basic matrices. In this paper, we consider to construct adaptively secure DIBE schemes with more compact public parameters from the LWE problem. (i) On the one hand, we gave a generic DIBE construction from lattice-based programmable hash functions with high min-entropy. (ii) On the other hand, when instantiating our generic DIBE construction with four LPHFs with high min-entropy, we can get four adaptively secure DIBE schemes with more compact public parameters. In one of our DIBE schemes, the master public key only consists of ω(log⁡λ) basic matrices.

Provably secure identity-based encryption resilient to post-challenge continuous auxiliary input leakage

2015 ◽  
Vol 9 (10) ◽  
pp. 1016-1024 ◽  
Author(s):  
Jiguo Li ◽  
Yuyan Guo ◽  
Qihong Yu ◽  
Yang Lu ◽  
Yichen Zhang
Keyword(s):  
Post Challenge ◽  
Identity Based Encryption ◽  
Identity Based ◽  
Auxiliary Input ◽  
Provably Secure

Anonymous Hierarchical Identity-Based Encryption with Short Ciphertexts

2011 ◽  
Vol E94-A (1) ◽  
pp. 45-56 ◽  
Author(s):  
Jae Hong SEO ◽  
Tetsutaro KOBAYASHI ◽  
Miyako OHKUBO ◽  
Koutarou SUZUKI
Keyword(s):  
Identity Based Encryption ◽  
Identity Based

Practical identity-based encryption in multiple private key generator (PKG) environments

2013 ◽  
Vol 8 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Shengbao Wang ◽  
Zhenfu Cao ◽  
Qi Xie ◽  
Wenhao Liu
Keyword(s):  
Practical Identity ◽  
Private Key ◽  
Identity Based Encryption ◽  
Identity Based
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