The presentation describes basics of cryptography and information security. It covers goals of cryptography, history of cipher symmetric and public key cryptography
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This presentation describes how to implement Network based Intrusion Detection System (SNORT) in the network. Detecting and analyzing alerts generated and blocking the Attacker using Access Control List.
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Confidentiality, Integrity and Availability of Data are the basis for providing assurance on IS Security. This document gives a small overview of the impact of confidentiality, integrity and availability on the data and the need of securing the CIA.
The presentation describes basics of cryptography and information security. It covers goals of cryptography, history of cipher symmetric and public key cryptography
Intrusion detection and prevention systemNikhil Raj
This presentation describes how to implement Network based Intrusion Detection System (SNORT) in the network. Detecting and analyzing alerts generated and blocking the Attacker using Access Control List.
The CIA Triad - Assurance on Information SecurityBharath Rao
Confidentiality, Integrity and Availability of Data are the basis for providing assurance on IS Security. This document gives a small overview of the impact of confidentiality, integrity and availability on the data and the need of securing the CIA.
Just created a slideshare presentation giving a basic introduction to the Confidentiality, Integrity & Availability (CIA) Security Model. You can see more slideshows on http://www.slideshare.net/ImranahmedIT or visit my website: http://imran-ahmed.co.uk
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
Presented by Paul Wilson, Director General of APNIC and Chair of APrIGF Multistakeholder Steering Group at the Asia Pacific Internet Leadership Program as part of 2016 APrIGF Taipei
what is security of database system
how we can handle database security
how database security can be check
what are the countermeasures of database security
Secure web programming plus end users' awareness are the last line of defense against attacks targeted at the corporate systems, particularly web applications, in the era of world-wide web.
Most web application attacks occur through Cross Site Scripting (XSS), and SQL Injection. On the other hand, most web application vulnerabilities arise from weak coding with failure to properly validate users' input, and failure to properly sanitize output while displaying the data to the visitors.
The literature also confirms the following web application weaknesses in 2010: 26% improper output handling, 22% improper input handling, and 15% insufficient authentication, and others.
Abdul Rahman Sherzad, lecturer at Computer Science Faculty of Herat University, and Ph.D. student at Technical University of Berlin gave a presentation at 12th IT conference on Higher Education for Afghanistan in MoHE, and then conducted a seminar at Hariwa Institute of Higher Education in Herat, Afghanistan introducing web application security threats by demonstrating the security problems that exist in corporate systems with a strong emphasis on secure development. Major security vulnerabilities, secure design and coding best practices when designing and developing web-based applications were covered.
The main objective of the presentation was raising awareness about the problems that might occur in web-application systems, as well as secure coding practices and principles. The presentation's aims were to build security awareness for web applications, to discuss the threat landscape and the controls users should use during the software development lifecycle, to introduce attack methods, to discuss approaches for discovering security vulnerabilities, and finally to discuss the basics of secure web development techniques and principles.
Introduction to Public key Cryptosystems with block diagrams
Reference : Cryptography and Network Security Principles and Practice , Sixth Edition , William Stalling
Just created a slideshare presentation giving a basic introduction to the Confidentiality, Integrity & Availability (CIA) Security Model. You can see more slideshows on http://www.slideshare.net/ImranahmedIT or visit my website: http://imran-ahmed.co.uk
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
Presented by Paul Wilson, Director General of APNIC and Chair of APrIGF Multistakeholder Steering Group at the Asia Pacific Internet Leadership Program as part of 2016 APrIGF Taipei
what is security of database system
how we can handle database security
how database security can be check
what are the countermeasures of database security
Secure web programming plus end users' awareness are the last line of defense against attacks targeted at the corporate systems, particularly web applications, in the era of world-wide web.
Most web application attacks occur through Cross Site Scripting (XSS), and SQL Injection. On the other hand, most web application vulnerabilities arise from weak coding with failure to properly validate users' input, and failure to properly sanitize output while displaying the data to the visitors.
The literature also confirms the following web application weaknesses in 2010: 26% improper output handling, 22% improper input handling, and 15% insufficient authentication, and others.
Abdul Rahman Sherzad, lecturer at Computer Science Faculty of Herat University, and Ph.D. student at Technical University of Berlin gave a presentation at 12th IT conference on Higher Education for Afghanistan in MoHE, and then conducted a seminar at Hariwa Institute of Higher Education in Herat, Afghanistan introducing web application security threats by demonstrating the security problems that exist in corporate systems with a strong emphasis on secure development. Major security vulnerabilities, secure design and coding best practices when designing and developing web-based applications were covered.
The main objective of the presentation was raising awareness about the problems that might occur in web-application systems, as well as secure coding practices and principles. The presentation's aims were to build security awareness for web applications, to discuss the threat landscape and the controls users should use during the software development lifecycle, to introduce attack methods, to discuss approaches for discovering security vulnerabilities, and finally to discuss the basics of secure web development techniques and principles.
Introduction to Public key Cryptosystems with block diagrams
Reference : Cryptography and Network Security Principles and Practice , Sixth Edition , William Stalling
CS8792 - Cryptography and Network Securityvishnukp34
this is an engineering subject.this consist of
pgno: 5 - Information security in past & present
pgno: 7 - Aim of Course
pgno: 8 - OSI Security Architecture
pgno: 9 - Security Goals – CIA Triad
pgno: 13 - Aspects of Security
pgno: 17 - ATTACKS
pgno: 22 - Passive Versus Active Attacks
pgno: 23 - SERVICES AND MECHANISMS
Information security involves protecting information from unauthorized access, use, disclosure, disruption, modification, or destruction. It encompasses a range of strategies and practices, including encryption, access control, and network security, aimed at ensuring the confidentiality, integrity, and availability of information. This field is crucial in today's digital age to safeguard sensitive data and systems from cyber threats and attacks.
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
2. 2
Outline
• Attacks, services and mechanisms
• Security attacks
• Security services
• Methods of Defense
• A model for Internetwork Security
• Internet standards and RFCs
3. 3
Security?
• COMPUTER SECURITY
• The protection afforded to an automated
information system in order to attain the
applicable objectives of preserving the integrity,
availability, and confidentiality of information
system resources (includes hardware, software,
firmware, information/ data, and
telecommunications).
(The NIST Computer Security Handbook [NIST95])
4. 4
Security?
• What does it refer to?
• Three Fundamentals
– Confidentiality (Data confidentiality, Privacy)
• Authorized users get entry
• Inspection of information, printing of information and
knowledge of resource existence
– Availability
• Legitimate user be able to access resources and service
should be provided at anytime
– Integrity (Data integrity & System integrity)
• Changed in adequate way
• Modification done by authorized people
6. 6
Attack Process
• Three stages called MOM
• Method
– Ability, information, tools
• Opportunity
– Time and Access
• Motive
– Testing system reliability
– Competition between attackers or testing their own skills
– Breaking into well secured systems like law enforcement, government
agencies
– To gain popularity, financial gain, information gain
– Just for fun
– No motive at all
7. 7
The OSI (open systems
interconnection) security
architecture
• Security Attack: Any action that compromises the
security of information.
• Security Mechanism: A mechanism that is
designed to detect, prevent, or recover from a
security attack.
• Security Service: A service that enhances the
security of data processing systems and information
transfers. A security service makes use of one or
more security mechanisms.
8. 8
Security Attacks
• Passive Attack
• Passive attacks are in the nature of eavesdropping on, or
monitoring of, transmissions. The goal of the opponent is to
obtain information that is being transmitted
– attempts to learn or make use of information from the system but
does not affect system resources
• Active Attack
– attempts to alter system resources or affect their operation
– Active attacks involve some modification of the data stream or the
creation of a false stream and can be subdivided into four
categories
10. 10
Security Attacks
• Interruption: This is an attack on
availability
• Interception: This is an attack on
confidentiality
• Modification: This is an attack on
integrity
• Fabrication: This is an attack on
authenticity
12. 12
Security Services
• Processing or communication service that is provided by a system to
give a specific kind of protection to system resources; security services
implement security policies and are implemented by security
mechanisms
– Confidentiality (protect data from unauthorized disclosure)
– Authentication (who created or sent the data)
– Data Integrity (has not been altered)
– Non-repudiation (the order is final) Non repudiation prevents either sender or
receiver from denying a transmitted message. Thus, when a message is sent,
the receiver can prove that the alleged sender in fact sent the message.
Similarly, when a message is received, the sender can prove that the alleged
receiver in fact received the message.
– Access control (prevent misuse of resources)
– Availability (property of a system or a system resource being accessible and
usable upon demand by an authorized system entity)
• Denial of Service Attacks
14. 14
Methods of Defense
• Encryption
• Software Controls (access limitations in
a data base, in operating system protect
each user from other users)
• Hardware Controls (smartcard)
• Policies (frequent changes of
passwords)
• Physical Controls
15. 15
Example
• A security-related transformation on the information to be
sent. Examples include the encryption of the message,
which scrambles the message so that it is unreadable by
the opponent, and the addition of a code based on the
contents of the message, which can be used to verify the
identity of the sender.
• Some secret information shared by the two principals
and, it is hoped, unknown to the opponent. An example
is an encryption key used in conjunction with the
transformation to scramble the message before
transmission and unscramble it on reception.