A formalised ontology for network attack classification
- Authors: Van Heerden, Renier Pelser
- Date: 2014
- Subjects: Computer networks -- Security measures Computer security Computer crimes -- Investigation Computer crimes -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4691 , http://hdl.handle.net/10962/d1011603
- Description: One of the most popular attack vectors against computers are their network connections. Attacks on computers through their networks are commonplace and have various levels of complexity. This research formally describes network-based computer attacks in the form of a story, formally and within an ontology. The ontology categorises network attacks where attack scenarios are the focal class. This class consists of: Denial-of- Service, Industrial Espionage, Web Defacement, Unauthorised Data Access, Financial Theft, Industrial Sabotage, Cyber-Warfare, Resource Theft, System Compromise, and Runaway Malware. This ontology was developed by building a taxonomy and a temporal network attack model. Network attack instances (also know as individuals) are classified according to their respective attack scenarios, with the use of an automated reasoner within the ontology. The automated reasoner deductions are verified formally; and via the automated reasoner, a relaxed set of scenarios is determined, which is relevant in a near real-time environment. A prototype system (called Aeneas) was developed to classify network-based attacks. Aeneas integrates the sensors into a detection system that can classify network attacks in a near real-time environment. To verify the ontology and the prototype Aeneas, a virtual test bed was developed in which network-based attacks were generated to verify the detection system. Aeneas was able to detect incoming attacks and classify them according to their scenario. The novel part of this research is the attack scenarios that are described in the form of a story, as well as formally and in an ontology. The ontology is used in a novel way to determine to which class attack instances belong and how the network attack ontology is affected in a near real-time environment.
- Full Text:
- Date Issued: 2014
- Authors: Van Heerden, Renier Pelser
- Date: 2014
- Subjects: Computer networks -- Security measures Computer security Computer crimes -- Investigation Computer crimes -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4691 , http://hdl.handle.net/10962/d1011603
- Description: One of the most popular attack vectors against computers are their network connections. Attacks on computers through their networks are commonplace and have various levels of complexity. This research formally describes network-based computer attacks in the form of a story, formally and within an ontology. The ontology categorises network attacks where attack scenarios are the focal class. This class consists of: Denial-of- Service, Industrial Espionage, Web Defacement, Unauthorised Data Access, Financial Theft, Industrial Sabotage, Cyber-Warfare, Resource Theft, System Compromise, and Runaway Malware. This ontology was developed by building a taxonomy and a temporal network attack model. Network attack instances (also know as individuals) are classified according to their respective attack scenarios, with the use of an automated reasoner within the ontology. The automated reasoner deductions are verified formally; and via the automated reasoner, a relaxed set of scenarios is determined, which is relevant in a near real-time environment. A prototype system (called Aeneas) was developed to classify network-based attacks. Aeneas integrates the sensors into a detection system that can classify network attacks in a near real-time environment. To verify the ontology and the prototype Aeneas, a virtual test bed was developed in which network-based attacks were generated to verify the detection system. Aeneas was able to detect incoming attacks and classify them according to their scenario. The novel part of this research is the attack scenarios that are described in the form of a story, as well as formally and in an ontology. The ontology is used in a novel way to determine to which class attack instances belong and how the network attack ontology is affected in a near real-time environment.
- Full Text:
- Date Issued: 2014
Coordinating legal aid services in civil matters for indigent people in eThekwini: a model for improved access to justice
- Authors: Holness, David Roy
- Date: 2014
- Subjects: Legal assistance to the poor -- South Africa Legal aid services -- South Africa Civil procedure -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: http://hdl.handle.net/10948/10981 , vital:26864
- Description: The South African law and legal system can and should be a mechanism through which the lives of all resident there are enhanced through the safeguarding and advancement of the fundamental rights guaranteed in its Bill of Rights. This thesis focuses on ‘legal aid’ service delivery (broadly speaking) for the indigent in a particular locality by and through registered law clinics, other legal services providers and via other means in civil rather than criminal matters. In this regard there continue to be very substantial differences between the proper access to civil justice requirements of constitutional South Africa and the actual situation which has existed since the dawn of South Africa’s democratic era which continues unabated. Justice and equality are promised to all in South Africa, yet due to gaps in the ‘net’ of free legal services provided to the indigent, the ability to pay for legal services in civil cases often remains the deciding factor. This study examines the constitutional obligations which, it is argued, apply to the provision of free civil legal services to impoverished people in South Africa. This research considers the law as a vector for necessary positive transformation in the daily lives of those resident in South Africa, which is considered within the country’s woefully unequal socio-economic situation. It builds upon existing research and court authority which show the function of access to justice as an important promoter of the type of society envisaged by the South African Constitution - one where the enjoyment of justice and equality are within the reach of all. However, at present, if one can afford the expensive services of lawyers in civil matters, then access to justice is far more readily attainable. But the opposite is true where someone is denied meaningful access to justice through a lack of legal representation because they cannot afford prohibitively high lawyers’ costs (and disbursements) and no adequate alternatives are provided for by the state or through other means. In these circumstances a vulnerable, unrepresented litigant in a civil case faces a greatly increased likelihood of being denied proper access to a daunting and intricate legal system. There are two main reasons for concentrating on free legal services to the ‘needy’ in civil rather than criminal matters. In the first place, all available statistics show that a huge proportion of legal aid services in South Africa has been and continues to be dispensed in criminal rather than civil cases. Secondly, there has been minimal research or case authority in South Africa on legal aid and other free legal services for impoverished people in civil matters. This thesis examines the state of free civil legal service provision and the need for such assistance within the eThekwini Metropolitan Municipality, one of South Africa’s largest metropoles. This analysis includes an empirical study of the requests for free civil legal services in a particular year by qualifying potential clients in eThekwini and the degree to which free legal service providers are meeting or failing to meet those needs. The study considers the legal service provision in such matters by legal non-governmental organisations, state-supported legal service providers and the work of legal professionals in private practice acting pro bono. The thesis then proposes a model for eThekwini for coordinating (and concurrently improving) civil legal aid services, pro bono legal work and other forms of free legal assistance - like community service by senior law students and law graduates - in response to the particular needs and circumstances facing the indigent there. When referring to the concept of ‘legal aid services’, this research concentrates on legal advice, assistance and representation to indigent clients. However, the promotion of legal rights awareness to such clients is often necessary to open their eyes to the possibility of legal avenues, where appropriate, to improve their situations. Therefore this study also considers - albeit to a lesser degree - this more indirect form of legal assistance through the dissemination of legal knowledge in an accessible form to clients who would qualify for legal aid assistance. The work concludes by briefly postulating the likely appropriateness (and/or limitations) of the aforementioned ‘free civil legal service model for the indigent’ beyond eThekwini.
- Full Text:
- Date Issued: 2014
- Authors: Holness, David Roy
- Date: 2014
- Subjects: Legal assistance to the poor -- South Africa Legal aid services -- South Africa Civil procedure -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: http://hdl.handle.net/10948/10981 , vital:26864
- Description: The South African law and legal system can and should be a mechanism through which the lives of all resident there are enhanced through the safeguarding and advancement of the fundamental rights guaranteed in its Bill of Rights. This thesis focuses on ‘legal aid’ service delivery (broadly speaking) for the indigent in a particular locality by and through registered law clinics, other legal services providers and via other means in civil rather than criminal matters. In this regard there continue to be very substantial differences between the proper access to civil justice requirements of constitutional South Africa and the actual situation which has existed since the dawn of South Africa’s democratic era which continues unabated. Justice and equality are promised to all in South Africa, yet due to gaps in the ‘net’ of free legal services provided to the indigent, the ability to pay for legal services in civil cases often remains the deciding factor. This study examines the constitutional obligations which, it is argued, apply to the provision of free civil legal services to impoverished people in South Africa. This research considers the law as a vector for necessary positive transformation in the daily lives of those resident in South Africa, which is considered within the country’s woefully unequal socio-economic situation. It builds upon existing research and court authority which show the function of access to justice as an important promoter of the type of society envisaged by the South African Constitution - one where the enjoyment of justice and equality are within the reach of all. However, at present, if one can afford the expensive services of lawyers in civil matters, then access to justice is far more readily attainable. But the opposite is true where someone is denied meaningful access to justice through a lack of legal representation because they cannot afford prohibitively high lawyers’ costs (and disbursements) and no adequate alternatives are provided for by the state or through other means. In these circumstances a vulnerable, unrepresented litigant in a civil case faces a greatly increased likelihood of being denied proper access to a daunting and intricate legal system. There are two main reasons for concentrating on free legal services to the ‘needy’ in civil rather than criminal matters. In the first place, all available statistics show that a huge proportion of legal aid services in South Africa has been and continues to be dispensed in criminal rather than civil cases. Secondly, there has been minimal research or case authority in South Africa on legal aid and other free legal services for impoverished people in civil matters. This thesis examines the state of free civil legal service provision and the need for such assistance within the eThekwini Metropolitan Municipality, one of South Africa’s largest metropoles. This analysis includes an empirical study of the requests for free civil legal services in a particular year by qualifying potential clients in eThekwini and the degree to which free legal service providers are meeting or failing to meet those needs. The study considers the legal service provision in such matters by legal non-governmental organisations, state-supported legal service providers and the work of legal professionals in private practice acting pro bono. The thesis then proposes a model for eThekwini for coordinating (and concurrently improving) civil legal aid services, pro bono legal work and other forms of free legal assistance - like community service by senior law students and law graduates - in response to the particular needs and circumstances facing the indigent there. When referring to the concept of ‘legal aid services’, this research concentrates on legal advice, assistance and representation to indigent clients. However, the promotion of legal rights awareness to such clients is often necessary to open their eyes to the possibility of legal avenues, where appropriate, to improve their situations. Therefore this study also considers - albeit to a lesser degree - this more indirect form of legal assistance through the dissemination of legal knowledge in an accessible form to clients who would qualify for legal aid assistance. The work concludes by briefly postulating the likely appropriateness (and/or limitations) of the aforementioned ‘free civil legal service model for the indigent’ beyond eThekwini.
- Full Text:
- Date Issued: 2014
Issues in Zulu relativization
- Authors: Poulos, George
- Date: 1982
- Subjects: Zulu language -- Relative clauses
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3618 , http://hdl.handle.net/10962/d1006939
- Description: Zulu is a language of the Nguni group of the South-Eastern Zone of Bantu languages and is spoken by approximately 5 400 000 people. As far back as 1848, the Zulu language was investigated by a missionary of the American Board in Natal, James C. Bryant. In that year his ideas on the language were put on paper under the title, The Zulu Language, and this valuable contribution of some 13 pages was published in the following year in the Journal of the Oriental Society . Bryant's work heralded the beginning of a tradition of analysis in Zulu that was to capture the interest of a number of investigators over a period stretching up until the present day.
- Full Text:
- Date Issued: 1982
- Authors: Poulos, George
- Date: 1982
- Subjects: Zulu language -- Relative clauses
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3618 , http://hdl.handle.net/10962/d1006939
- Description: Zulu is a language of the Nguni group of the South-Eastern Zone of Bantu languages and is spoken by approximately 5 400 000 people. As far back as 1848, the Zulu language was investigated by a missionary of the American Board in Natal, James C. Bryant. In that year his ideas on the language were put on paper under the title, The Zulu Language, and this valuable contribution of some 13 pages was published in the following year in the Journal of the Oriental Society . Bryant's work heralded the beginning of a tradition of analysis in Zulu that was to capture the interest of a number of investigators over a period stretching up until the present day.
- Full Text:
- Date Issued: 1982
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