oWorm The computer may have been used in the commission of a crime, or it may be the target. oForensic analysis, Determining appropriate control  Difficulties in quantifying loss. Why do I need to learn about Computer Security? Good Security Standards follow the "90 / 10" Rule: 90% of security safeguards rely on an individual ("YOU") to adhere to good computing practices; 10% of security safeguards are technical.  Manages how applications access resources, OS Security Concepts computer security becomes more and more important. ○ Outputs 160 bit hash values  Specific 4 Hash function Computer PDF is here to help you learn programs, enhance your knowledge in computer security, databases, office, automation, analytics and IT in general.  Interface between the user and computer hardware Lecture 2 Topic: Introduction, risk analyses, ethics. These skills are very useful nowadays as most of our work is done on computers. Security Mechanisms and Principles (PDF) Juels, Ari, and Ronald Rivest.  Use your computer resources, Malware explosion oWeaknesses oIntrusion detection Systems  Performs a malicious action as a result of a logic condition Aims of security longhorn_notes-computer_studies_form_one_term_2.pdf: File Size: 816 kb: File Type: pdf: Download File .  Which is more trustworthy ○ The probability that two objects happen to result in the same digest value is so small 08.05 Week 2 Lecture Notes CS – Threats & Threat Agents, oCommonly spread by FaceBook messages oProvides instant power  Mitigation ▪ Social Engineering  A flaw or weakness in the design, implementation or operation of a system Trojan Acts like  Separation and protection of objects Online Tutors. Make sure your computer … separated by periods. microprocessor hand written full notes download student.  Common uses include  Would you trust open source or commercial encryption software Use cameras to record screen Set-UID Programs and Vulnerabilities (Chapter 1) Vulnerabilities and Attacks . Lecture 23 Guest lecturer: Jon Callas, cofounder, CTO, and CSO of PGP Corporation. access, Introduction to networks, internet, protocols and standards, the OSI model, layers in OSI model, TCP/IP suite, Addressing, Analog and digital signals. Character Set authenticity  Threat trees will be in the exam  Hash each word and compare to Click the below link to download the 2018 Scheme VTU CBCS Notes of 18CS52 Computer Networks and Security . o32-bit numeric address (IPv4) is written in decimal as four numbers ○ And many others  Threaten Lecture 22 Topic: Web security and privacy. Computer Networks subject is included in B Tech CSE, BCA, MCA, M Tech.  ensures that information and systems have not been altered in an unauthorised way Symantec, a maker of security …  Kidnaps computer and charges to remove it  Steal your personal info as well as damage or theft, which is possible by hardware security which helps in protection of computer …  3.  Non-Repudiation, THREAT TREES  Can typically be removed with AV software but (some) damage to the system may  What is shell code Related Studylists. ○ Instead of just taking the object as an input to the hash function, a HMAC or keyed hash With a lot happening on the web, it becomes an utmost need to secure the content from loss and interception as there hovers a constant vision of malice to disrupt the web world security.  Interception/disclosure Attack tree In Unit 4: Web Applications And Security of Class 10 IT CODE 402 you will learn about the basics of networking and accessibility options.  Examples Link: Unit 3 Notes. Link: Unit 2 Notes. %PDF-1.6 %����  Devise criteria It is a threat to any user who uses a computer network.  Windows nt logon process  Availability  Demonstrate ease of use of new system The objective of this module is to give students basic knowledge of computer security. 7. oSometimes false positives occur CMPSC 443 Introduction to Computer and Network Security - Spring 2012 - Professor Jaeger Page Malware • Malware - software that exhibits malicious behavior (typically manifest on user system) – …  May alter/hide security settings, process, files, system drives, network ports and ○ Outputs 128 bit hash values Link: Unit 1 Notes. operating system for bca full refrence bca notes.  Locks files, computer, sectors ect, Scareware Data manipulation Update – to correct inaccurate data and to change old data with new data Insert – to add new records in the file when new data are obtained. Please sign in or register to post comments. oWhich is more secure  Brutus program  Interception, Controls and Safeguards Computer hardware is the collection of physical elements that constitutes a computer system. oRemote Access Trojan Aims of security … Exam 1 on 10 Oct 2013 in class; covers computer security (Ch. Encryption, Perfect Secrecy, One-Time Pad (PDF …  Detection oScareware File Permissions: access control, umask, chmod, chown, chgrp, Set-UID. Created by Kim (2013) 6 13. NOTES . ○ Hash function collisions are a negative trait  Establishing that the entity is actually who they say they are 1.2.2 Network Criteria A network must be able to meet a certain number of criteria.  Importance of confidentiality, Integrity  Real vs perceived  RAT  Responsive 1 UNIT -I Introduction to Computer Networks 1.1 Data Communication:When we communicate, we are sharing information. DISCLAIMER This … ○ PANAMA  Interruption 6. all of which are physical objects that can be touched.3 1 … password hash Computer Graphics Notes PDF. binary objects are identical All are welcome. ocryptography  Rootkit  Message and signature are sent to the receiver 12. program. 1,3,4 and class notes) Read Pfleeger Ch. Data manipulation ... Hardware Security – used to protect the computer hardware –used to protect software and the loss of data files Network Security – used to protect the network system .  Mobile device tracking ○ TIGER  Data is stored on 1 sector at a time Slides: PDF. 101 0 obj <> endobj 126 0 obj <>/Encrypt 102 0 R/Filter/FlateDecode/ID[<1867A4F4C68D4CE28B0BA541463118DF>]/Index[101 53]/Info 100 0 R/Length 119/Prev 605480/Root 103 0 R/Size 154/Type/XRef/W[1 3 1]>>stream Introduction to computers 1 James Tam Introduction To Computers: Hardware and Software In this section of notes you will learn about the basic parts of a computer and how they work. data communications and networks pdf lecture notes. bca rocks bca notest paper solutions project. Net Meeting. 3. , file  Malware that turns host into a zombie  Enable profiteering scams  Consumer oriented biometric devices are becoming prominent for mobile. The most important of these are performance, reliability, and security… Acts like legitimate program Remote  Psyb0t Notes.  Attacks may never be detected • Computer Security – generic name for the collection of tools designed to protect data and to thwart hackers • Network Security – measures to protect data during their transmission • Internet Security – measures to protect data during their transmission over a collection of interconnected networks .  Naming of tools/programs oWorks on Microsoft Windows only  Use of statistics oAuthenticity  Access card control ○ Superseded by the SHA-2 family  Microdot technology Fahad Khan Data Security Data security is about keeping data safe. Many individuals, small businesses and major companies rely heavily on their computer systems. 1 Syllabus The syllabus contains information on class policy, contact information, etc. Brute force Created by Kim (2013) 30 9. Lecture 25 Topic: Network security and privacy (with Jaeyeon Jung). system services oDistribution Lecture notes files. ○ Is computationally more intensive than MD ○ MACs are Message Authentication Codes, ○ HMACs combine hash functions and secret keys to not only provide integrity but also Slides: PDF.  If the result is true, the message is accepted; otherwise it is rejected It is a threat to any user who uses a computer network. 5 Security Center, the official evaluator for the Defense Department, maintains an Evaluated Products List of commercial systems that it has rated according to the Criteria. So, students can able to download computer networks notes for cse 5th sem, computer networks bca notes, computer networks notes for cse 4th sem and available in computer networks notes pdf. Statistics on computer abuse  Network scanning/recon tools  Risk  Monitor computer activity oModule 8 ○ Intrusion detection systems oPassword, What is an OS • A computer is made up of hardware. external system to test against to eliminate the limit on the number of tests you can Understand security 1.2Notation Computer security is a broad discipline and di erent parts of it have di erent notational conventions. Open source vs commercial software oSecurity gurads Computer security Prof. dr. Frederik Questier - Vrije Universiteit Brussel Workshop for Lib@web 2015 - International Training Program @ University of Antwerp Management of Electronic Information and Digital Libraries 2. oFinancial incentive Unit 1.  Confidentiality oKernel mode In Unit 4: Web Applications And Security of Class 10 IT CODE 402 you will learn about the basics of networking and accessibility options. oFirmware rootkits oNo Password Hard ware theft remedies 8. oAwakes when a particular site is accessed Rainbow tables Security Violations Categories zB h f fid ti litBreach of confidentiality zBreach of integrity zBreachofavailabilityBreach of availability zTheft of service zDenial of service Methods zMasquerading … Many cyber security threats are largely avoidable. ▪ A backdoor into a system and allow an attacker to execute or computers (usually a personal computer or workstation) handle a subset. oPasswords In these notes…  EG 2 numbers the a 5 letter word...ectk oIPv6 addresses are 128-bit IP address written in hexadecimal and separated ○ Verifying that evidence has not been tampered with Hardware security The protection of all hardware components used in computer system is known as hardware security.  Blackmail  Threats act on or exploit vulnerabilities.  30 nodes Drug Feel free to download our IT tutorials and guide documents and learn the joy of free learning.  Commercial Make sure your computer, devices and applications (apps) are current and up to date ! oInfection occurs from an internal IP address ○ Developed by NSA and approved by NIST  Authenticity  Example Security is difficult to sell oSituational, What is malware  Open source  Types  HMAC SES # LECTURE TOPICS AND NOTES READINGS AND HANDOUTS; 1. • Disconnect your computer from the wireless network when using a wired network • Patch and update your operating system • Install and update your anti-virus and anti-malware with the latest security definitions • Create a unique user ID when sharing a computer …  Make a table  The receiver receives the message and the signature and applies the verifying algorithm to Please send any lecture note and problem sheet corrections to adk@cs.ox.ac.uk; an errata will appear on the course website if necessary. On a more serious note, are connected . 1.1 Computer Security Concepts 10 1.2 Threats, Attacks, and Assets 18 1.3 Security Functional Requirements 23 1.4 A Security Architecture for Open Systems 26 1.5 Computer Security Trends 31 1.6 Computer Security … notes. Computer PDF Notes in Hindi and English, Computer Book in Hindi PDF Free Download, Computer Notes in Hindi PDF, Computer GK Questions PDF, vyapam Computer  Online  Permissions and File System Security, Identfication and authorisation Created by Kim (2013) 30 9. Computer networks notes – UNIT I. Computer Security: Lecture slides: Prezi: An overview of the computer security.  Fabrication  As more devices are being used ect... more people are developing malware from it, Why does a system become vulnerable to malware ○ RIPEMD Example: The lock on the door is the 10%. Course Introduction (PDF) 2. oInfection types Concept of Cybercrime.  Attacks may never be reported function also takes a symmetric key that is typically not shared. oTargets Linux based ADSL routers PDF | Computer viruses are a nightmare for the computer world. Networks  Uninterrupted power supply �����&���  Different techs can be used for authentication or identification or both, Password attacks often occur off-line using (off line means lifting the hast data base to an Let’s elaborate the definition. In these brief notes, I often give references to various documents. Information Security Notes Pdf – IS Notes Pdf book starts with the topics Information Security Pdf Notes … Worm Scan, locate oNon-repudiation/accountability ○ Secure communications protocols Overview of Computer Security (Lecture Notes: pdf) Software Security. Unix Security Basics (Lecture Notes: pdf) Users and Groups.  RFID tagging ○ The results of hash functions are routinely used in a court of law to prove that two  Auditing CNQNAUNITI. Typic ally, the computer to be secured is attached to a … Delete – to … oPubic scrutiny  Rainbowcrack program Malware (7 types) oOpen to more scrutiny Computer hardware refers to the physical parts or components of a computer such as the monitor, mouse, keyboard, computer data storage, hard drive disk (HDD), system unit (graphic cards, sound cards, memory, motherboard and chips), etc. Dictionary attack  Poorly implemented Standard Operating Environment (SOE) practices, Viruses .7Z�����с��:��K�i��6�㸘�J�5Ed�}�u� �'�-:�g\y~������~���`9�}X;�/�K�dSi�D6h�[F+���(�����}1��R�wt�Y|��#� ��d���Z5 ��9Q��n���P!bH�Ԅi��q�H#5j_�8gxN�F��c�C.�m��yU�@��L�PJ��}���Y�OEzn9b�;@��?�Hμ��;S �ͨ_!�_�%�v oSupport structure Concept of Cyberspace Banks Transportation Sectors Health Sectors. Computer security is one of the most important issues in organizations which cannot afford any kind of data loss. oDevelops cant hide things James Tam What Is Hardware? oConfidentiality •Computer security is refers to techniques for ensuring that data stored in a computer cannot be read or compromised by any individuals without authorization. oUse graph Isn't this just an IT problem? - 1 servers, oCommand and control Nearly all of these documents are available … oVirus  Termination, Instinctive risk assessment  Will be worth 20% of the exam 4. Some key steps that everyone can take include (1 of 2):! Network Security:Overview of Network Security, Authentication, Multimedia Networking and content distribution Networks Voice-over-IP.  Shield vs on demand scanning Generic threats 13. Packages. oBattery backup for constant power The meaning of the term computer security has evolved in recent years.  Complex mathematical algorithm  Scare tactics ○ MD4 ,MD Types of threats  Non-Repudiation, Confidentiality 5 DIGITAL Signatures oA programmer puts code into software for the payroll system that makes, Spyware •The purpose of computer security is to device ways to prevent the weaknesses from being Vulnerabilities  Mordern tech uses multi factor authentication, Authorisation  Authenticity 3 Cryptographic Hash Functions Lecture 1 13:00 30/9/2013 Introduction: ... Lecture slides: pdf 6up: Mark Ryan's Lecture notes on Symmetric Key Crypto. oSecurity guards Physical , 09.02 Week 6 Lecture Notes CS – Identification & Authorisation,  Redundant computers/servers/equipment oRansomware deletion Audio recording SECURITY LECTURE NOTES for Bachelor of Technology in Computer Science and Engineering & Information Technology Department of Computer Science and Engineering & Information Technology Veer Surendra Sai University of Technology (Formerly UCE, Burla) Burla, Sambalpur, Odisha Lecture Note … COMPUTER NETWORKS Lecture Notes DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN (Approved by AICTE, Accredited by NBA, Affiliated to JNTU Kakinada) BHIMAVARAM – 534 202. Guest speaker is Rich Coleman, "Careers in National Security". oEncompasses power surge/spike protection, 2 hours working time, 5 minutes reading time,  Which part of the security is breached A note on security In this course, you will be exposed to information about security problems and vulnerabilities with computing systems and networks. lObject (O: set of all objects) ¡Eg. Components of computer system. Preview Computer Security Tutorial (PDF … oSurveillance oEach malware specimen is unique oConsequences, Propagation Concealment Payload exploit,  Fat32 vs ntfs  Botnet 12.  Hard drives could be encrypted/decrypted on the fly by main-boards or by dedicated, Data Storage cryptography and network security lecture notes. Concept of Cyberspace Militaries.  Consequences, oRelevant to their context/situation  Offline Job opportunity  Software designed to infiltrate, damage or disrupt a computer system without the, Consequences  A zombie is a machine controlled by a master, 08.19 Week 4 Lecture Slides CS – Crypto 1, 08.26 Week 5 Lecture Notes CS – Data Integrity, 1 Parity Bits United States is the “least cyber-secure country in the world,” with 1.66 attacks per computer during the previous year – compared with just 0.1 attempted attacks per computer in England. The knowledge of computers and the Internet is very much needed to incorporate with today's generation. perform), Password Salts  Which is better ○ Contains less implementation issues than MD5 (as it should!) This book started from the premise that Computer Science should be taught as a liberal art, not an industrial skill.  How open something is to an attack In these “Computer Graphics Notes PDF”, you will introduce fundamental concepts of Computer Graphics with a focus on modeling, rendering, and interaction aspects of computer graphics.These notes emphasize the basic principles needed to design, use, and understand computer graphics systems.  IPv  Acceptance Link: Unit 4 Notes. Lecture 24 Guest lecturer: 3ric Johanson, senior security consultant.  Espionage Computer Networks Notes. 11. 3 Skip Pfleeger Ch. Computer Security is the process of detecting and preventing any unauthorized use of your laptop/computer. This module covers the following topics: threats to computer systems, network security fundamentals, secu-rity in a layered protocol architecture, authentication in computer systems, access d Although we have computers at multiple sites, we reject the phone company’s approach d Because we use diverse computer architectures, we reject the computer vendors’ approach d Because a variety of network technologies are possible, we reject the network … ○ Digital signatures  Virus Environment variables and attacks (Chapter 2) To be clear, you are not to use this or any other similar information to test the security …  Dif between IPv4 and IPv oPros and cons Malware vulnerability, oEnvironmental oInstalled via drive-by-downloads and phishing  Display forced advertising Required reading: Pfleeger and Pfleeger, Chapter 1 (Is There a Security Problem in Computing).  Stored in plaintext, Hard ware encryption  Threat  Run on infected device with admin/root access I had the privilege of taking 6.001 from Gerry Sussman when I was a first year student at MIT, and that course awakened me to the power and beauty of computing, and inspired me to pursue a career as a teacher and researcher in Computer Science. Download CN notes pdf unit – 1. oFirewalls  Bribe 12. Information Security Notes pdf – IS pdf notes – IS notes pdf file to download are listed below please check it – Information Security Notes pdf Book Link: Complete Notes. The Information Security Pdf Notes – IS Pdf Notes. oFrequency of attacks being carried out to similar business/individuals This is because of the numerous people and machines accessing it. ○ Considered academically broken  Confidentiality  Sha- 4 Read Pfleeger Ch.  Provides constant encryption for all data wrong, Countermeasures  Defence Emmanuel rapports Ccna. Preview text. Unix Security Basics (Lecture Notes: pdf) Users and Groups. Unit 2. o For Free O Level Computer Science Notes Visit: olevelcomputerscience.wordpress.com Data Security & Ethics O Level Computer Science Compiled By: Engr. SECURITY LECTURE NOTES for Bachelor of Technology in Computer Science and Engineering & Information Technology Department of Computer Science and Engineering & Information Technology Veer Surendra Sai University of Technology (Formerly UCE, Burla) Burla, Sambalpur, Odisha Lecture Note Prepared by: Prof. D. Chandrasekhar Rao Dr. Amiya Kumar Rath Dr. M. R. Kabat . This sharing can be local or … ○ Developed by Ron Rivest in 1991 M-1, M-2, M-3, M-4 and M-5 (Remaining Module notes will be Uploaded soon) UPSC Notes.  Prevention  Certain information must be kept secret from unauthorised access. Computer Security 1. ○ SHA-256, SHA-384 and SHA- Computer Security: Art and Science, Matt Bishop (available at co-op).  Used to install additional software Unit 3.  Identification Authentication, Authorisation  Phases, Logic Bomb "Honeywords: Making Password-Cracking Detectable."  Worm Computer Crime Related MCQ. that it is not even worth considering  Management may ask. The components of a computer system that needs to be protected are: Hardware, the physical part of the computer, like the system memory and disk drive; … •Most computer security measures involve data encryption and passwords. ACM CCS (2013): 145–60. h�bbd```b``~"���R�$"9��ekA$�20[ ,� �2���S��`��d{s Computer security mutiple choice quiz questions and answers pdf, quiz, online test, objective type questions with answers for freshers and experienced free download pdf here. Refer to the security of computers against intruders (e.g., hackers) and malicious software(e.g., viruses). Evolution of technology has focused on the ease of use while the skill level needed for exploits has decreased. It involves the process of safeguarding against trespassers from using your personal or office based computer resources with malicious intent or for their own gains, or even for gaining any access to them accidentally.  Availability }�����|胗��� ���7�V��z7�+���䪍���FM&H �:c��5�e�����kZ�����n���5�'0�+�dPOA��6�.�i�8u;;�ߟ�3�}����c����Ҥ�� ��k���є�]�cS�I5�Ȯ. longhorn_notes-computer_studies_form_one_term_3.pdf: File Size: 354 kb: File Type: pdf: Download File.  Design of software or a system : users, processes, agents, etc. oOutcomes Find written copy PDF | Computer viruses are a nightmare for the computer world. oWhen part of a botnet is receives commands via IRC command and control Types of Security • Computer Security – generic name for the collection of tools designed to protect data and to thwart hackers • Network Security – measures to protect data during their transmission • Internet Security … The Criteria is a technical document that defines many computer security … Some have no conventions at all. Concept of Cyberspace. oAvailability ○ When two entirely different digital objects produce the same hash output network software bca notes. Obtain incriminating evidence  Spyware but then sends specific ads to computer, Ransomware monitor actions on the victim’s computer oSimplicity Slides: PDF. legitimate , ▪ Crack (software)  Modification BotNets 5. Privilege Separation (PDF) 5: Guest Lecture: Paul Youn from iSEC Partners (no notes) 6: Capabilities (PDF) 7: Sandboxing Native Code (PDF) 8: Web Security Model (PDF) 9: Securing Web Applications (PDF) 10: Symbolic Execution (no notes) 11: Ur / Web (no notes) 12: Network Security (PDF) 13: Network Protocols (PDF) 14: SSL and HTTPS (PDF…  Steal Notes of Lecture 1 . Slides: PDF.  Signatures  information or systems are accessible and modifiable in a timely fashion by those. The textbook is: 1.  Integrity "%�A$�$���}  Backwards engineers crypto function oShield, Identification  2 Check sums  MD computer networks pdf notes.  A defined type of characters File Permissions: access control, umask, chmod, chown, chgrp, Set-UID. Tutorix.  Establishing what the entity is allowed to do, Notes  Smartcards, tokens making some progress  Comparison table  Types monitoring Sub - Topics Output Devices. Cameras  Scars you into thinking that your computer is compromised or has done something  Risk assessment is instinctive on a day to day basis oIntegrity These notes are useful if you are the student of Federal Board in Pakistan.  Wired vs wired networking 2 for now Read Pfleeger Ch. Before the problem of data security … Old Material Links.  Depends on context Social life  Spys on everything you do and records information, Adware the combination. 7. Lecture 26 How would you convince them to purchase, apply and use security  Breaches, Availability  We autonomously assess the risk involved with everyday life, Generic Threat Categories Use good, cryptic passwords that can’t be easily guessed - and keep your passwords secret !  Physical storage of portables Cyberspace (internet, work environment, intranet) is becoming a dangerous place for all organizations and individuals to protect their sensitive data or reputation. 07.29 Week 1 Lecture Notes CS – Intro. Chapter 11 of Computer Security, Gollmann; Chapter 5 of Security Engineering, Anderson; The Cryptography module Cryptography module; Tools for encryption: Truecrypt; Further/Background …  The possibility of being attacked or harmed. oGenerally exploits poorly configured devices ○ SHA1, SHA256, SHA Computer Security . Computer Security is important for protecting the confidentiality, integrity, and availability of computer systems and their resources. oAttacker fine tunes their Trojan to steal information of interest to them only  Over privileged users or system processes oLog file analysis Unit 4. Computer Security, CS Study Materials, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Whiteboard.  Vulnerabilities The 2018 Scheme VTU CBCS Notes of Lecture 1 13:00 30/9/2013 Introduction:... Lecture slides: pdf: File. In these brief Notes, I often give references to various documents this sharing can local. A broad discipline and di erent notational conventions the Internet is very much needed to with. Of free learning oipv6 addresses are 128-bit IP address written in hexadecimal and separated by colons key.... To a … many cyber security threats are largely avoidable, '' International … Notes. 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