Identity-based proxy signatures: a generic construction and a concrete scheme from RSA

2015 ◽  
Vol 8 (18) ◽  
pp. 3602-3614 ◽  
Author(s):  
Maryam Rajabzadeh Asaar ◽  
Mahmoud Salmasizadeh ◽  
Colin Boyd
Keyword(s):  
Generic Construction ◽  
Identity Based

Intrusion-resilient identity-based signatures: Concrete scheme in the standard model and generic construction

2018 ◽  
Vol 442-443 ◽  
pp. 158-172 ◽  
Author(s):  
Jia Yu ◽  
Rong Hao ◽  
Hui Xia ◽  
Hanlin Zhang ◽  
Xiangguo Cheng ◽  
...  
Keyword(s):  
Standard Model ◽  
The Standard Model ◽  
Generic Construction ◽  
Identity Based

CCA-Secure and Revocable Certificateless Encryption with Ciphertext Evolution

2020 ◽  
Vol 31 (02) ◽  
pp. 175-191
Author(s):  
Yinxia Sun ◽  
Futai Zhang ◽  
Anmin Fu ◽  
Zhe Xia
Keyword(s):  
Security Requirements ◽  
User Needs ◽  
Security Model ◽  
Encrypted Data ◽  
Public Key Cryptosystems ◽  
Generic Construction ◽  
Certificateless Encryption ◽  
User Revocation ◽  
Identity Based ◽  
Certificate Management

Certificateless cryptosystems have attracted great interests in cryptographic research since its invention. Because compared with traditional public key cryptosystems or identity-based cryptosystems, they could not only simplify the certificate management, but also alleviate the key escrow problem. In certificateless cryptosystems, user revocation is a challenging issue. To address this issue, one popular method is to update the key via public channels. However, most of the existing schemes in this approach are impractical because of the following two shortcomings. Firstly, the user needs to maintain a list of decryption keys, but the size of the list will keep increasing. Secondly, the revoked user can still recover the plaintexts of the encrypted data prior to revocation, and this is a particular threat in some applications. To solve these problems, this paper presents revocable certificateless encryption with ciphertext evolution. We give a generic construction and then describe how it can be initialized concretely. In our proposed scheme, the user only needs to keep one decryption key, and once a user is revoked, it can no longer decrypt any ciphertext in the server. Moreover, the IND-CCA security model is defined against three types of attacks. And our schemes are formally proved to satisfy these security requirements.

Tight security for the generic construction of identity-based signature (in the multi-instance setting)

2020 ◽  
Vol 847 ◽  
pp. 122-133
Author(s):  
Youngkyung Lee ◽  
Jong Hwan Park ◽  
Kwangsu Lee ◽  
Dong Hoon Lee
Keyword(s):  
Construction Of Identity ◽  
Generic Construction ◽  
Identity Based ◽  
Tight Security

Identity-based provable data possession revisited: Security analysis and generic construction

2017 ◽  
Vol 54 ◽  
pp. 10-19 ◽  
Author(s):  
Hongyu Liu ◽  
Yi Mu ◽  
Jining Zhao ◽  
Chunxiang Xu ◽  
Huaqun Wang ◽  
...  
Keyword(s):  
Security Analysis ◽  
Provable Data Possession ◽  
Generic Construction ◽  
Identity Based
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