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Title: Tesseract : a 4D symmetric block cipher cryptography solution for real-time applications
Author: Alshahrani, Ali Mohammed S.
ISNI:       0000 0004 5991 3517
Awarding Body: University of Essex
Current Institution: University of Essex
Date of Award: 2015
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Security issues are a major concern, especially with real-time applications that are very time- sensitive because of file size. Cryptography is one of the main techniques used to provide the necessary data security. As is well known, the concept of the cryptography is to convert the plaintext into an unreadable version on the sender side by using an encryption key. At the receiver side, the ciphertext is returned into its original situation. Of particular relevance is key space viz. the number of possible keys that can be used to generate the key from the keys container. This is very important against brute force attacks. Many algorithms have been published; however, they feature limitations pertaining to security level, encryption key size, performance speed or incompatibility with the real-time applications. In this thesis, innovative 4D tesseract-based solutions (T-key) are suggested, implemented, tested and shown to overcome the drawbacks of most existing algorithms. They are based on a symmetric block cipher technique and have a large key-space (e.g. 384-bit). In-this thesis, three key size are suggested as examples, which are tested and evaluated: T-{O,l}128, T-{O,1}256 and T-{O,1}512. Moreover, four lightweight coding rounds are applied to create these keys from the 4D tesseract key containers. The execution speed of the T-key was compared with the AES cipher, and the results indicated that the first two encryption key sizes suggested here are faster than the first two encryption keys of AES. Furthermore, the security evaluations carried out on the suggested algorithm showed full resistance to statistical attacks and a comprehensive pass of correlation coefficient tests.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available