Improvement of Cloud Computing Medical Data Protection Technology Based on Symmetric Encryption Algorithm

2022 ◽  
Vol 52 (1) ◽  
pp. 20210456
Author(s):  
Nannan Zhao
Keyword(s):  
Cloud Computing ◽  
Data Protection ◽  
Medical Data ◽  
Encryption Algorithm ◽  
Symmetric Encryption ◽  
Protection Technology

Necessity of Key Aggregation Cryptosystem for Data Sharing in Cloud Computing

2019 ◽  
pp. 1393-1407
Author(s):  
R. Deepthi Crestose Rebekah ◽  
Dhanaraj Cheelu ◽  
M. Rajasekhara Babu
Keyword(s):  
Cloud Computing ◽  
Data Sharing ◽  
Data Protection ◽  
Cloud Storage ◽  
Symmetric Encryption ◽  
Secure Storage ◽  
Constant Size ◽  
Secret Keys ◽  
Protection Mechanisms ◽  
Existing Data

Cloud computing is one of the most exciting technologies due to its ability to increase flexibility and scalability for computer processes, while reducing cost associated with computing. It is important to share the data securely, efficiently, and flexibly in cloud storage. Existing data protection mechanisms such as symmetric encryption techniques are unsuccessful in preventing data sharing securely. This article suggests Key aggregate cryptosystem which produce constant size ciphertexts in order to delegate decryption rights for any set of ciphertexts. The uniqueness is that one can aggregate any number of secret keys and make them as compact as a single key. This compact aggregate key can be easily sent to others with very limited secure storage.

scholarly journals Protection of the patient data against intentional attacks using a hybrid robust watermarking code

2021 ◽  
Vol 7 ◽  
pp. e400
Author(s):  
Ahmad Nagm ◽  
Mohammed Safy Elwan
Keyword(s):  
Medical Image ◽  
Medical Data ◽  
Encryption Algorithm ◽  
Symmetric Encryption ◽  
Robust Watermarking ◽  
Least Significant Bit ◽  
Integrity Protection ◽  
Patient’S Information ◽  
Active Attacks ◽  
Image Details

The security of patient information is important during the transfer of medical data. A hybrid spatial domain watermarking algorithm that includes encryption, integrity protection, and steganography is proposed to strengthen the information originality based on the authentication. The proposed algorithm checks whether the patient’s information has been deliberately changed or not. The created code is distributed at every pixel of the medical image and not only in the regions of non-interest pixels, while the image details are still preserved. To enhance the security of the watermarking code, SHA-1 is used to get the initial key for the Symmetric Encryption Algorithm. The target of this approach is to preserve the content of the image and the watermark simultaneously, this is achieved by synthesizing an encrypted watermark from one of the components of the original image and not by embedding a watermark in the image. To evaluate the proposed code the Least Significant Bit (LSB), Bit2SB, and Bit3SB were used. The evaluation of the proposed code showed that the LSB is of better quality but overall the Bit2SB is better in its ability against the active attacks up to a size of 2*2 pixels, and it preserves the high image quality.

Necessity of Key Aggregation Cryptosystem for Data Sharing in Cloud Computing

2017 ◽  
pp. 210-227
Author(s):  
R. Deepthi Crestose Rebekah ◽  
Dhanaraj Cheelu ◽  
M. Rajasekhara Babu
Keyword(s):  
Cloud Computing ◽  
Data Sharing ◽  
Data Protection ◽  
Cloud Storage ◽  
Symmetric Encryption ◽  
Secure Storage ◽  
Constant Size ◽  
Secret Keys ◽  
Protection Mechanisms ◽  
Existing Data

Cloud computing is one of the most exciting technologies due to its ability to increase flexibility and scalability for computer processes, while reducing cost associated with computing. It is important to share the data securely, efficiently, and flexibly in cloud storage. Existing data protection mechanisms such as symmetric encryption techniques are unsuccessful in preventing data sharing securely. This article suggests Key aggregate cryptosystem which produce constant size ciphertexts in order to delegate decryption rights for any set of ciphertexts. The uniqueness is that one can aggregate any number of secret keys and make them as compact as a single key. This compact aggregate key can be easily sent to others with very limited secure storage.

Medical Data Handling Using Cloud Computing And A Proposal for Countrywide Medical System

2012 ◽  
Vol 7 (1) ◽  
pp. 19-24
Author(s):  
Samayita Bhattacharya ◽  
◽  
Kalyani Mali ◽  
Keyword(s):  
Cloud Computing ◽  
Medical Data ◽  
Medical System ◽  
Data Handling

Research on Core Data Protection Based on Cloud Computing

2019 ◽  
pp. 1167-1174
Author(s):  
Guoru Deng ◽  
Shuai Hu ◽  
Hui Yuan ◽  
Liang Dong ◽  
Yan Zhuang ◽  
...  
Keyword(s):  
Cloud Computing ◽  
Data Protection ◽  
Core Data

scholarly journals Mahaviracharya Encryption Standard (MES)

2020 ◽  
Vol 8 (6) ◽  
pp. 5759-5764
Keyword(s):  
Encryption Algorithm ◽  
The Internet ◽  
Symmetric Encryption ◽  
Important Thing ◽  
New Process ◽  
Encryption Algorithms ◽  
Use Of The Internet

Given the current use of the Internet, The most important thing is to provide security to the user's information. Many encryption algorithms already exist for this purpose. Here we discussed a new process called Mahaviracharya Encryption Standard. MES is a symmetric encryption algorithm. Here, this algorithm is cryptanalyzed, and compared with blowfish algorithm. MES algorithm can be used instead off algorithms like AES, Blowfish etc.

scholarly journals An Efficient Method of Image Encryption Using Rossler Chaotic System

2021 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Yasir Ahmed Hamza ◽  
Marwan Dahar Omer
Keyword(s):  
Image Encryption ◽  
Chaotic System ◽  
Initial Conditions ◽  
Computation Time ◽  
Encryption Algorithm ◽  
Brute Force ◽  
Symmetric Encryption ◽  
New Approach ◽  
System Parameters ◽  
Plain Image

In this study, a new approach of image encryption has been proposed. This method is depends on the symmetric encryption algorithm RC4 and Rossler chaotic system. Firstly, the encryption key is employed to ciphering a plain image using RC4 and obtains a ciphered-image. Then, the same key is used to generate the initial conditions of the Rossler system. The system parameters and the initial conditions are used as the inputs for Rossler chaotic system to generate the 2-dimensional array of random values. The resulted array is XORed with the ciphered-image to obtain the final encrypted-image. Based on the experimental results, the proposed method has achieved high security and less computation time. Also, the proposed method can be resisted attacks like (statistical, brute-force, and differential).

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