scholarly journals Security Analysis of an Identity-Based Signature From Factorization Problem

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 23277-23283 ◽  
Author(s):  
Ganglin Zhang ◽  
Yongjian Liao ◽  
Yu Fan ◽  
Yikuan Liang
Keyword(s):  
Security Analysis ◽  
Factorization Problem ◽  
Identity Based

scholarly journals Remote Data Possession Checking Scheme with Supporting Efficient Group User Authority Management for Shared Cloud Data

2021 ◽  
Author(s):  
Yilin Yuan ◽  
Jianbiao Zhang ◽  
Wanshan Xu ◽  
Xiao Wang ◽  
Yanhui Liu
Keyword(s):  
Security Analysis ◽  
Public Auditing ◽  
Cloud Data ◽  
The Public ◽  
Shared Data ◽  
Identity Based ◽  
And Performance ◽  
Data Auditing ◽  
Data Checking ◽  
Remote Data

Abstract Under the shared big data environment, most of the existing data auditing schemes rarely consider the authorization management of group users. Meanwhile, how to deal with the shared data integrity is a problem that needs to be pondered. Thus, in this paper, we propose a novel remote data checking possession scheme which achieves group authority management while completing the public auditing. To perform authority management work, we introduce a trusted entity – group manager. We formalize a new algebraic structure operator named authorization invisible authenticator (AIA). Meanwhile, we provide two versions of AIA scheme: basic AIA scheme and standard AIA scheme. The standard AIA scheme is constructed based on the basic AIA scheme and user information table (UIT), with advanced security and wider applicable scenarios. By virtue of standard AIA scheme, the group manager can perfectly and easily carry out authority management, including enrolling, revoking, updating. On the basis of the above, we further design a public auditing scheme for non-revoked users’ shared data. The scheme is based on identity-based encryption (IBE), which greatly reduce the necessary certificate management cost. Furthermore, the detailed security analysis and performance evaluation demonstrate that the scheme is safe and feasible.

scholarly journals Light Weight Cryptography based Medical Data and Image Encryption Scheme

Webology ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 88-104
Author(s):  
M. Raja ◽  
Dr.S. Dhanasekaran ◽  
Dr.V. Vasudevan
Keyword(s):  
Data Privacy ◽  
Medical Information ◽  
Security Analysis ◽  
Encrypted Data ◽  
Attribute Based Encryption ◽  
Identity Based ◽  
Information Confidentiality ◽  
Processing And Storage ◽  
And Storage ◽  
Maintenance Problem

Many medical companies use cloud technology to collect, distribute and transmit medical records. Given the need for medical information, confidentiality is a key issue. In this study, we propose an encrypted scheme based on encrypted data for an electronic healthcare environment. We use hybrid Attribute based encryption and Triple DES encryption technique (ABETDES) scheme, including identity-based cryptography (IBC), to ensure data privacy through communication channels և to improve the reliability of cloud computing. There are also limited indicators of light processing and storage resources. This solves a serious maintenance problem and ensures that a private key is created where it is not blind. The introduction of a security option, a comprehensive security analysis to protect ciphertext, shows that our program is effective against many known attacks and compared to existing methods.

scholarly journals Security Analysis of a Lightweight Identity-Based Two-Party Authenticated Key Agreement Protocol for IIoT Environments

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Yuting Li ◽  
Qingfeng Cheng ◽  
Wenbo Shi
Keyword(s):  
Internet Of Things ◽  
Social Life ◽  
Key Agreement ◽  
Security Analysis ◽  
Impersonation Attack ◽  
Industrial Internet Of Things ◽  
Authenticated Key Agreement ◽  
Key Agreement Protocol ◽  
Industrial Internet ◽  
Identity Based

Internet of Things brings convenience to the social life, at the same time, putting forward higher requirements for the security of data transmission and storage. Security incidents based on industrial Internet of Things have occurred frequently recently, which should be given full consideration. The identity-based authenticated key agreement protocol can solve these security threats to a certain extent. Recently, a lightweight identity-based authenticated key agreement protocol for Industrial Internet of Things, called ID-2PAKA protocol, was claimed to achieve secure authentication and meet security properties. In this paper, we show that the ID-2PAKA protocol is insecure in identity authentication and cannot resisting ephemeral key compromise impersonation attack.

SECURITY ANALYSIS OF A FUZZY IDENTITY-BASED ENCRYPTION SCHEME

2014 ◽  
Vol 23 (03) ◽  
pp. 1450033 ◽  
Author(s):  
MIAOMIAO TIAN ◽  
LIUSHENG HUANG ◽  
WEI YANG
Keyword(s):  
Security Analysis ◽  
Error Tolerance ◽  
Encryption Scheme ◽  
Security Model ◽  
Private Key ◽  
Identity Based Encryption ◽  
The Standard Model ◽  
Real World Applications ◽  
Identity Based ◽  
Fuzzy Identity

Fuzzy identity-based encryption (FIBE) scheme is a kind of identity-based encryption (IBE) scheme, in which any user's identity is composed by a set of attributes and any ciphertext encrypted under identity ID can be decrypted by using a private key corresponding to identity ID′ if ID′ is close to ID as measured by some metric. Due to the error-tolerance property, FIBE scheme is very useful in real-world applications. However, most FIBE schemes are provable secure only in a weaker security model. In order to eliminate this problem, Ren et al. recently proposed a new FIBE scheme and proved that it is fully chosen-ciphertext secure in the standard model. Unfortunately, in this paper, we will show that their FIBE scheme is even not chosen-plaintext secure.

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