Efficient Forward-Secure Threshold Public Key Encryption

2020 ◽  
pp. 330-349
Author(s):  
Rafael Kurek
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Threshold Public Key Encryption

Provably secure threshold public-key encryption with adaptive security and short ciphertexts

2012 ◽  
Vol 210 ◽  
pp. 67-80 ◽  
Author(s):  
Bo Qin ◽  
Qianhong Wu ◽  
Lei Zhang ◽  
Oriol Farràs ◽  
Josep Domingo-Ferrer
Keyword(s):  
Public Key ◽  
Adaptive Security ◽  
Public Key Encryption ◽  
Threshold Public Key Encryption ◽  
Provably Secure

scholarly journals Constructions of dynamic and non-dynamic threshold public-key encryption schemes with decryption consistency

2016 ◽  
Vol 630 ◽  
pp. 95-116 ◽  
Author(s):  
Yusuke Sakai ◽  
Keita Emura ◽  
Jacob C.N. Schuldt ◽  
Goichiro Hanaoka ◽  
Kazuo Ohta
Keyword(s):  
Public Key ◽  
Dynamic Threshold ◽  
Public Key Encryption ◽  
Encryption Schemes ◽  
Threshold Public Key Encryption

More Constructions of Re-Splittable Threshold Public Key Encryption

2018 ◽  
Vol E101.A (9) ◽  
pp. 1473-1483
Author(s):  
Satsuya OHATA ◽  
Takahiro MATSUDA ◽  
Goichiro HANAOKA ◽  
Kanta MATSUURA
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Threshold Public Key Encryption

scholarly journals New Construction of PVPKE Scheme and Its Application in Information Systems and Mobile Communication

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Minqing Zhang ◽  
Xu An Wang ◽  
Xiaoyuan Yang ◽  
Weihua Li
Keyword(s):  
Information Systems ◽  
Interesting Property ◽  
Public Key ◽  
Public Key Encryption ◽  
Public Verifiability ◽  
Quadratic Residues ◽  
Cryptographic Primitive ◽  
New Construction ◽  
Threshold Public Key Encryption ◽  
Private Network

In SCN12, Nieto et al. discussed an interesting property of public key encryption with chosen ciphertext security, that is, ciphertexts with public verifiability. Independently, we introduced a new cryptographic primitive, CCA-secure publicly verifiable public key encryption without pairings in the standard model (PVPKE), and discussed its application in proxy reencryption (PRE) and threshold public key encryption (TPKE). In Crypto’09, Hofheiz and Kiltz introduced the group of signed quadratic residues and discussed its application; the most interesting feature of this group is its “gap” property, while the computational problem is as hard as factoring, and the corresponding decisional problem is easy. In this paper, we give new constructions ofPVPKEscheme based on signed quadratic residues and analyze their security. We also discussPVPKE’s important application in modern information systems, such as achieving ciphertext checkable in the cloud setting for the mobile laptop, reducing workload by the gateway between the open internet and the trusted private network, and dropping invalid ciphertext by the routers for helping the network to preserve its communication bandwidth.

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