Enhanced secured voice over internet protocol
Other Title(s)
رفع كفاءة السرية للمكالمات الصوتية عبر شبكة الانترنت
Dissertant
Thesis advisor
Comitee Members
Fadil, Muayyad A.
al-Bayati, Hilal M.
al-Hammuz, Sadiq O.
University
Amman Arab University
Faculty
Collage of Computer Sciences and Informatics
Department
Department of Computer Science
University Country
Jordan
Degree
Ph.D.
Degree Date
2006
English Abstract
Voice over Internet Protocol (VoIP) is the technology that enables voice packets transmission over Internet Protocol (IP).
Security is of concern whenever open networks are to be used.
VoIP suffers from packet latency and loss due to the nature of IP network.
Cryptographic systems may be used to achieve VoIP security, but their impact on the Quality of Service (QoS) should be minimized.
The fact that most of the known encryption algorithms are computationally expensive results in a significant amount of time added to packet delay.
VoIP is usually used by public users resulting in a key exchange problem; a trusted intermediate authority normally takes this responsibility.
In this research, VoIP security was enhanced via a proposed cryptographic system.
The proposed solution consists of a simple, but strong encryption/decryption algorithm as well as an embedded method to exchange the keys between users.
In this research, new key is generated in a random fashion from a pool of master keys and then used to encrypt each new voice packet to strengthen the security level.
The generated keys passed four implemented randomness statistical tests.
Key exchange is carried out by mixing some information about the key with the ciphered voice data; this information is enough for a target receiver to regenerate/extract the key.
The proposed solution was implemented and tested, the results showed that the required time for the security processes is minimized compared to some known algorithms.
The analysis improved that the security level has a direct relationship with the number of possible keys that can be generated from the master key; this number can be increased by increasing the value range of the factors that affect this number.
Finally, a delay budget for VoIP on variety network configurations was presented for a variety of codecs; which can be used as guidance for VoIP developers
Main Subjects
Telecommunications Engineering
Topics
No. of Pages
163
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Review of related literature.
Chapter Three : Encryption and key selection.
Chapter Four : Key management and distribution.
Chapter Five : Key extraction and decryption.
Chapter Six : Evaluation of the security process.
Chapter Seven : System prototype (design and implementation).
Chapter Eight : Conclusions and future work.
References.
American Psychological Association (APA)
Abu Shuqayr, Umar M. A.. (2006). Enhanced secured voice over internet protocol. (Doctoral dissertations Theses and Dissertations Master). Amman Arab University, Jordan
https://search.emarefa.net/detail/BIM-528746
Modern Language Association (MLA)
Abu Shuqayr, Umar M. A.. Enhanced secured voice over internet protocol. (Doctoral dissertations Theses and Dissertations Master). Amman Arab University. (2006).
https://search.emarefa.net/detail/BIM-528746
American Medical Association (AMA)
Abu Shuqayr, Umar M. A.. (2006). Enhanced secured voice over internet protocol. (Doctoral dissertations Theses and Dissertations Master). Amman Arab University, Jordan
https://search.emarefa.net/detail/BIM-528746
Language
English
Data Type
Arab Theses
Record ID
BIM-528746
