scholarly journals Minimizing the Security Risks in Hybrid Cloud Networks with the Aid of Optimal Triple Data Encryption Standard Algorithm

Security is one of the challenging problems in the hybrid cloud, because of the combination of private and public cloud. A novel algorithm has been presented in this paper, to secure the hybrid cloud networks during information storage and recovery. The algorithm consists of four modules: (i) data collection module, (ii) data de-duplication module, (iii) encrypted de-duplication module and (iv) user interface module. Initially, the document is collected using the data collection module and duplicate data is removed using the matching score mechanism. This de-duplicated data is encrypted using the Optimal Triple Data Encryption Standard (OTDES). To enhance the performance of TDES, oppositional monarch butterfly optimization algorithm (OMBOA) is used in hybrid combination with TDES and this is referred as OTDES. This encrypted data is then stored on the cloud. The stored information can be accessed through the user interface module. Performance evaluation of the proposed security system has been carried out on the basis of different evaluation metrics and have been found in good order.

Author(s):  
Mays M. HOOBI

Day after day, the digital data sizes undergo rapid increases over Internet, it is significant; the data shouldn’t be accessed by the unauthorized users. The attackers attempt at accessing those sensitive part of the data. There is a necessity for the prevention of the unauthorized access of the data and guarantee the secure data exchange. A variety of the cryptographic approaches have been used for the conversion of the secret data of the users into secure ciphertext formats. The cryptographic methods have been based on, private and public keys. The researchers have worked on the efficient and secure transmission of data and presented a variety of the cryptographic approaches. For the efficient and secure transmission of the data over networks, there is a necessity of using hybrid approaches of encryption. In this article, various encryption methods are reviewed such as Rijndael, Number Theory Research Unit, Data Encryption Standard, 3 Data Encryption Standard, Elliptic Curve Cryptography, Rivest–Shamir–Adleman, Optimal Asymmetric Encryption Padding, Diffie-Hellman, HiSea, Improved Caesar, Digital Signature, and Advance Encryption Standard. Keywords: Brute Force Attack, Cryptography, Digital Data, Hybrid Encryption, Search Space.


2019 ◽  
Vol 8 (4) ◽  
pp. 9803-9807

Nowadays, data deduplication has become more essential for cloud storage providers because of continuous increase in number of users and their data file size. The users are allowed to access server anytime and anywhere to upload/download their data file. Whenever data is retrieving, it leads to several problems associated to the confidentiality and privacy. For protection of data security, we proposed an efficient technique called ClouDedup which assures file deduplication. To secure the confidentiality of critical data while supporting ClouDedup checker, we proposed a triple data encryption standard (TDES) technique to encrypt the data prior to uploading the data file in cloud storage. The privilege level of user is verified with data to assure whether he is an authorized user or not. The analysis of security demonstrates that our proposed security method is safe and secure. We prove that our proposed ClouDedup method has minimal overhead compared to normal operations. The process aims to use authorized ClouDedup checker with a triple data encryption standard (TDES) technique to minimize duplication copies of data in hybrid cloud storage and conducted test experiments using our prototype.


Matematika ◽  
2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Andi Priatmoko ◽  
Erwin Harahap

Abstrak. Algoritma Data Encryption Standard (DES) adalah algoritma kriptografi yang termasuk dalam algoritma simetrik, dengan menggunakan kunci yang sama untuk enkripsi dan dekripsi. DES menggunakan 16 putaran dengan 16 buah kunci internal yang dapat dibangkitkan dari kunci eksternal yang diberikan oleh pengguna. Kunci eksternal memilik panjang 64 bit digunakan untuk mengenkripsi atau mendekripsi data 64 bit. Proses enkripsi dan dekripsi dari algoritma DES dengan menggunakan software MATLAB mengefisienkan pengguna dalam melakukan proses enkripsi dan dekripsi data. MATLAB dilengkapi dengan fitur Graphical User Interface (GUI) yang dapat menyembunyikan kerumitan program, sehingga dengan adanya interface algoritma DES, pengguna lebih mudah berinteraksi dengan program.Kata Kunci: DES, MATLAB, GUI, Chiperteks, Enkripsi, Dekripsi.Abstract. (The implementations of DES Algorithms Using MATLAB) Data Encryption Standard (DES) is a cryptography algorithm that are included in the algorithms symmetric, by using the same for encryption and decryption. DES the use of 16 rounds with 16 pieces of the key that can be raised from the key external given by the user. The key to the external is 64 bits used to encrypt and decrypt data 64 bits. The process of encryption and decryption of algorithms DES by using software MATLAB efficient users in to do the encryption and decryption. MATLAB is equipped with features Graphical User Interface (GUI) that can hide the complexity of the program, so that with the interface of the DES, users are more easily interact with the program.Keywords: DES, MATLAB, GUI, Chiperteks, Encryption, Decryption. 


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