Secured cloud data migration technique by competent probabilistic public key encryption

2020 ◽  
Vol 17 (5) ◽  
pp. 168-190
Author(s):  
M. G. Aruna ◽  
K. G. Mohan
Keyword(s):  
Public Key ◽  
Data Migration ◽  
Public Key Encryption ◽  
Cloud Data ◽  
Migration Technique

scholarly journals Conjunctive and Disjunctive Keyword Search over Encrypted Mobile Cloud Data in Public Key System

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Yu Zhang ◽  
Yin Li ◽  
Yifan Wang
Keyword(s):  
Vector Space ◽  
Keyword Search ◽  
Vector Space Model ◽  
Public Key ◽  
Inner Product ◽  
Mobile Cloud ◽  
Encryption Scheme ◽  
Public Key Encryption ◽  
Cloud Data ◽  
Space Model

The searchable encryption scheme can perform keywords search operation directly over encrypted data without decryption, which is crucial to cloud storage, and has attracted a lot of attention in these years. However, it is still an open problem to develop an efficient public key encryption scheme supporting conjunctive and a disjunctive keyword search simultaneously. To achieve this goal, we introduce a keyword conversion method that can transform the query and index keywords into a vector space model. Through applying a vector space model to a predicate encryption scheme supporting inner product, we propose a novel public key encryption scheme with conjunctive and disjunctive keyword search. The experiment result demonstrates that our scheme is more efficient in both time and space as well as more suitable for the mobile cloud compared with the state-of-art schemes.

scholarly journals Efficient Boolean Keywords Search over Encrypted Cloud Data in Public Key Setting

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yu Zhang ◽  
Wei He ◽  
Yin Li
Keyword(s):  
Cloud Computing ◽  
Vector Space ◽  
Experimental Analysis ◽  
Keyword Search ◽  
Public Key ◽  
Public Key Encryption ◽  
Data Confidentiality ◽  
Cloud Data ◽  
Searchable Public Key Encryption ◽  
Query Operations

Searchable public key encryption- (SPE-) supporting keyword search plays an important role in cloud computing for data confidentiality. The current SPE scheme mainly supports conjunctive or disjunctive keywords search which belongs to very basic query operations. In this paper, we propose an efficient and secure SPE scheme that supports Boolean keywords search, which is more advanced than the conjunctive and disjunctive keywords search. We first develop a keyword conversion method, which can change the index and Boolean keywords query into a group of vectors. Then, through applying a technique so-called dual pairing vector space to encrypt the obtained vectors, we propose a concrete scheme proven to be secure under chosen keyword attack. Finally, we put forward a detailed theoretical and experimental analysis to demonstrate the efficiency of our scheme.

Cryptanalysis on an Improved Version of ElGamal-Like Public-Key Encryption Scheme for Encrypting Large Messages

Informatica ◽  
2012 ◽  
Vol 23 (4) ◽  
pp. 537-562 ◽  
Author(s):  
Ting-Yi Chang ◽  
Min-Shiang Hwang ◽  
Wei-Pang Yang
Keyword(s):  
Public Key ◽  
Encryption Scheme ◽  
Public Key Encryption

Disavowable Public Key Encryption with Non-Interactive Opening

2015 ◽  
Vol E98.A (12) ◽  
pp. 2446-2455 ◽  
Author(s):  
Ai ISHIDA ◽  
Keita EMURA ◽  
Goichiro HANAOKA ◽  
Yusuke SAKAI ◽  
Keisuke TANAKA
Keyword(s):  
Public Key ◽  
Public Key Encryption

Design and Analysis of a Provable Secure Multi-Recipient Public Key Encryption Scheme

2009 ◽  
Vol 20 (10) ◽  
pp. 2907-2914 ◽  
Author(s):  
Liao-Jun PANG ◽  
Hui-Xian LI ◽  
Li-Cheng JIAO ◽  
Yu-Min WANG
Keyword(s):  
Public Key ◽  
Encryption Scheme ◽  
Public Key Encryption

Public-Key Encryption

2017 ◽  
Author(s):  
Keith M. Martin
Keyword(s):  
Elliptic Curve ◽  
Public Key Cryptography ◽  
Public Key ◽  
Public Key Encryption ◽  
Hybrid Encryption ◽  
Public Key Cryptosystems ◽  
Encryption And Decryption ◽  
Encryption Schemes ◽  
Hard Problems ◽  
Set Up

In this chapter, we introduce public-key encryption. We first consider the motivation behind the concept of public-key cryptography and introduce the hard problems on which popular public-key encryption schemes are based. We then discuss two of the best-known public-key cryptosystems, RSA and ElGamal. For each of these public-key cryptosystems, we discuss how to set up key pairs and perform basic encryption and decryption. We also identify the basis for security for each of these cryptosystems. We then compare RSA, ElGamal, and elliptic-curve variants of ElGamal from the perspectives of performance and security. Finally, we look at how public-key encryption is used in practice, focusing on the popular use of hybrid encryption.

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