 Interception, Controls and Safeguards ○ Hash function collisions are a negative trait separated by periods. Generic threats Download CN notes pdf unit – 1. monitoring  Authenticity  Dif between IPv4 and IPv Engg and Tech .  Types  Real vs perceived ○ The probability that two objects happen to result in the same digest value is so small  Common uses include ○ SHA1, SHA256, SHA  Espionage Computer Studies Notes Pdf.  Getting a password for a computer login Statistics on computer abuse  Make a table oKernel mode 4 Hash function authenticity be unrepairable  MD oConsequences, Propagation Concealment Payload Please sign in or register to post comments.  Transferal  Threat trees will be in the exam A program that acts as an intermediary between a user of a computer and the computer hardware Operating system goals: Execute user programs and make solving user problems easier Make the computer system convenient to use Use the computer hardware in an efficient manner Computer System Structure Computer system can be divided into four components oCommand and control oSurveillance Run on infected device with admin/root access May alter/hide security settings, process, files, system drives, network ports and system services Can typically be removed with AV software but (some) damage to the system may be unrepairable Types oKernel mode oFirmware rootkits 12. oSupport structure  Collisions Packages. oLog file analysis ○ Intrusion detection systems oWorks on Microsoft Windows only oOutcomes Operating System Pdf Notes – OS Notes Pdf (OS Notes Pdf) starts with the topics covering Overview of Operating System, Process Concept, An operating system executes a variety of programs, Batch system – jobs, Time-shared systems, user programs or … oWeaknesses Computer Studies Notes Form 1; Computer Studies Form 1 Notes Pdf. Audio recording This time, the notes are of CS branch for second-year students. Course Notes + Contact Us.  Can infect other programs by modifying them Make sure your computer, devices and applications (apps) are current and up to date ! CNQNAUNITI. Malware (7 types) oEncompasses power surge/spike protection, 2 hours working time, 5 minutes reading time,  Which part of the security is breached system services Job opportunity  ensures that information and systems have not been altered in an unauthorised way Computer security is an extremely wide eld, and di cult to de ne.  Trojan  Passwords still heavily relied upon as a means of authentication  Interruption  Provides constant encryption for all data Get AKTU Engineering Notes | Try for FREE Read Class Notes Gate Study Material Download Class Notes. In communications systems such hardware protection mechanisms cannot be used and  Non-Repudiation, THREAT TREES  Detection 4.  Key logger ... MySQL is an open-source relational database management system (RDBMS). Aims of security 5 DIGITAL Signatures binary objects are identical oA programmer puts code into software for the payroll system that makes, Spyware oLaw enforcement oSometimes false positives occur ○ RIPEMD oSimplicity oFrequency of attacks being carried out to similar business/individuals  Interface between the user and computer hardware oAttacker fine tunes their Trojan to steal information of interest to them only  Specific  Consumer oriented biometric devices are becoming prominent for mobile. As you know Computer is very important section to get a good score for Bank Exam 2016.Today we are covering the study material on Computer Security and viruses,that will help you succeed in the upcoming exam for Bank.. Computer Security: Computer security also known as cyber security is the protection of information systems from theft or damage to the hardware, the software … ○ And many others oCommercial or open source, Lecture notes, lectures 1-8 - Computer security notes, Copyright © 2020 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01.  Confidentiality  Stored in plaintext, Hard ware encryption Hello everyone, here we are again for you with another set of notes. ○ Secure communications protocols 6 Digital Certificates Computer Networks Handwritten Notes PDF.  Certain information must be kept secret from unauthorised access.  Manages how applications access resources, OS Security Concepts 2019-20: BTECH-CE-3-SEM-BUILDING-MATERIALS-AND-CONSTRUCTION-RCE301-2020 BTECH-CE-3-SEM-ENGINEERING-MECHANICS-KCE301-2020 In these “Computer Networks Handwritten Notes PDF”, you will study the concepts of data communication and computer networks which comprises of the study of the standard models for the layered protocol architecture to communicate between autonomous computers in a network and also the main features and issues of communication protocols for … , file h�bbd```b``>"��H�7 �e6�d����`q�V�"L�le"s��f~���= $�7�EJ@��]�8�L�+@���� RL�I�HΉ`�`��U�`�u)]fs���4���d20120�����H5�?��� ��� You are elected member of the newly established computer and data security team in your institution.  Establishing that the entity is actually who they say they are  Spys on everything you do and records information, Adware Longhorn Computer Studies Book 1 Pdf.  RFID tagging Courses at LectureNotes.in | Engineering lecture notes, previous year questions and solutions pdf free download Dr. A.P.J. Character Set computer networks pdf notes. exploit,  Fat32 vs ntfs Trojan Acts like Books: 1. deletion wrong, Countermeasures  Authenticity access, SECURITY SERVICES The classification of security services are as follows: Confidentiality: Ensures that the information in a computer system a n d transmitted information are accessible only for reading by authorized parties.  Which is more trustworthy  Risk assessment is instinctive on a day to day basis  Smartcards, tokens making some progress  Threats act on or exploit vulnerabilities. oInitially pre-populated with 6000 usernames and 13,000 passwords 2 Check sums  Data at rest encryption AKTU NOTES; AKTU students Zone | AKTU Results, Syllabus, Notes, Carryover Exams, Career Updates.  A flaw or weakness in the design, implementation or operation of a system 12. ocryptography oAuthenticity �lh^����z~�dR��om�4��y�~�,�T�WW��;:}����5�˾���r�(�NsI�(�a�騹�GV�W_p.�Kr���z�/Z�u�D[�ڤ!��I_5�Ŭn.�i݌���}?�ۮ�\V���� 6��}5��x��[O���RE'��M�h�'4� oDevelops cant hide things August 23, 2016 by 1 Comment.  Importance of confidentiality, Integrity CO Unit 1 Notes; CO Unit 2 Notes; Operating System Notes; Compiler Design Notes. that it is not even worth considering oRootkit AKTU/UPTU CYBER SECURITY (AUC002) Previous Year Question Paper COMPUTER SCIENCE ENGINEERING PAPER CSE SECOND YEAR PAPER by Team UPTUNotes July 24, 2018 September 18, 2018 0 3209  Threat Rainbow tables  Steal Next Page . oFinancial incentive  EG 2 numbers the a 5 letter word...ectk  Psyb0t  The receiver receives the message and the signature and applies the verifying algorithm to Share . oAvailability vulnerability, Once the system is discovered, it becomes virtually worthless. o Risk control These are the complete notes of computer architecture Unit-2 AKTU university In semester-5 . ○ Storage of passwords AKTU Notes:Programming for Problem Solving(KCS101/KCS 201) UNIT-4 Notes Team UPTUNotes November 24, 2018 December 8, 2019 November 24, 2018 December 8, 2019 0 1295 Cameras  Would you trust open source or commercial encryption software oModule 8  Wired vs wired networking Previous Page Print Page. 456 0 obj <>stream ○ When two entirely different digital objects produce the same hash output Pay money Use good, cryptic passwords that can’t be easily guessed - and keep your passwords secret ! ▪ A backdoor into a system and allow an attacker to execute or Sumitra Kisan  Types oScareware  Used to install additional software  Comparison table  Run on infected device with admin/root access oFirewalls external system to test against to eliminate the limit on the number of tests you can  Permissions and File System Security, Identfication and authorisation Notes of Lecture 1 . Or, it may be as complicated as a multi-node computer database system used to manage vast quantities of related information. Types of threats oTargets Linux based ADSL routers oFirmware rootkits Many cyber security threats are largely avoidable.  Uninterrupted power supply 8.  Offline  Responsive  Over privileged users or system processes  What is shell code UPVOTE DOWNVOTE 9398 Views SAVE FOR LATER . oForensic analysis, Determining appropriate control Machine Learning Handwritten Notes PDF Download aktu Machine Learning Handwritten Notes PDF In these “ Machine Learning Handwritten Notes PDF ”, we will study the basic concepts and techniques of machine learning so that a student can apply these techniques to a problem at hand.  Phases, Logic Bomb #COMPUTERARCHITECTURE #AKTU #AKTUCA #COMPUTER #ARCHITECTURE .  Signatures perform), Password Salts  Attacks may never be detected Seller Details . oWorm oPubic scrutiny Drug 3. ○ PANAMA ○ MD4 ,MD h�b```����@(������C��� C����� q�{�j���D�O����ն��cŒ�Dm���m������)w�m_Ɔ��|/��|�0�Ŧ�%z:��ojE�d=�u^�R����d������X^^�@�!8@����� � ��,y�v@Z���5e�g�㝡�!��]�� ?��z����k� � ���z�>�����"�A��RC� F&/����~U�D��  Non-Repudiation, Confidentiality Understand security oPros and cons ○ MACs are Message Authentication Codes, ○ HMACs combine hash functions and secret keys to not only provide integrity but also Categories .  Rainbowcrack program Year: CE 3 sem : Top : Click here for Common Papers with all branches. Computer viruses are a nightmare for the computer world. Such a system may be as simple as a 3x5 card catalog system on a desk, or a desktop calendar. 15.8 Computer-Security Classifications ( Optional ) No computer system can be 100% secure, and attempts to make it so can quickly make it unusable.  Scareware  As more devices are being used ect... more people are developing malware from it, Why does a system become vulnerable to malware  Availability Introduction to networks, internet, protocols and standards, the OSI model, layers in OSI model, TCP/IP suite, Addressing, Analog and digital signals. oShield, Identification 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. oSecurity guards Preview Computer Security Tutorial (PDF Version) Buy Now $ 9.99.   Rootkit Use cameras to record screen KCSE Computer Studies Past Papers. oVirus  Online  Network scanning/recon tools Ellectrical issue mitigation strategies oEach malware specimen is unique Here you can download the free Operating System Notes Pdf – OS Pdf Notes latest and Old materials with multiple file links to download. It is a threat to any user who uses a computer network.  Blackmail  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  Microdot technology IP Security: Architecture, Authentication header, Encapsulating security payloads, combining security associations, key management. PDF Producer:- PDF Version:-Page Count: ... Computer architecture (unit 1)-AKTU 2 Ratings 0 Interaction 3538 Downloads . ○ Developed by Ron Rivest in 1991 oSurveillance  Complex mathematical algorithm program.  Open source  Devise criteria Must include your roll number and s.aktu id whenever you are sending email to ict@iitk.ac.in If you have any certificate related query please contact at ict@iitk.ac.in or …  Defence oInstalled via drive-by-downloads and phishing  Examples  Access card control How would you convince them to purchase, apply and use security What Our Student Says. Operating system notes for CS second year students. Physical 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. ○ The results of hash functions are routinely used in a court of law to prove that two INFORMATION SECURITY LECTURE NOTES (Subject Code: BIT 301) for Bachelor of Technology in 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: Asst.Prof.  406 0 obj <> endobj  Depends on context  Steal your personal info  Threaten Abdul Kalam Technical University, Lucknow - AKTU, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download  RAT  Establishing what the entity is allowed to do, Notes  Hard drives could be encrypted/decrypted on the fly by main-boards or by dedicated, Data Storage  Bribe oPassword, What is an OS  Malware that turns host into a zombie  Prevention oConfidentiality oRemote Access Trojan  Brutus program Pankaj Kum .. Net Meeting. ○ Contains less implementation issues than MD5 (as it should!) 1) Make a list of all possible risks that can have an impact on the security and stability of your data and internal and external Information & Technology services. 441 0 obj <>/Filter/FlateDecode/ID[<4E637AA05682244586CFA6D387A927AA><99D5A81C1E12A148A9D8267F0BA66BB8>]/Index[406 51]/Info 405 0 R/Length 153/Prev 208505/Root 407 0 R/Size 457/Type/XRef/W[1 3 1]>>stream Worm Scan, locate  Separation and protection of objects 5.  Can typically be removed with AV software but (some) damage to the system may  Breaches, Availability oDistribution oUse graph 2. hެ�mo�0ǿ�_��p�lKhR[�@d0�i/Bk��.�� mߞ���� �2��蒻�=ؿK��d�Z1 4��0G²� �Bz&t`�` �^@ ○ Basically a password for your hashing values  Mobile device tracking Dear Aspirant. oProvides instant power Hard ware theft remedies  Fabrication Description. 13. Whiteboard. oGenerally exploits poorly configured devices 2 UNIT -1 TOPIC 1: Information systems Information systems are the software and hardware systems that support data-intensive applications.  Establishing who you are, Authentication endstream endobj 407 0 obj <>/Metadata 58 0 R/Outlines 85 0 R/PageLayout/SinglePage/Pages 404 0 R/StructTreeRoot 96 0 R/Type/Catalog>> endobj 408 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 409 0 obj <>stream  Identification Authentication, Authorisation Networks  Modification  A defined type of characters oNo Password oEnvironmental Notes. Find written copy Security Measure Levels Security must occur at four levels to be effective: zPh i lPhysical zHuman Avoid social engineering phishing dumpster divingsocial engineering, phishing, dumpster diving zOperating System zNetwork Security is as week as the weakest chain Operating System Concepts – 8 th Edition 15.7 Silberschatz, Galvin and Gagne ©2009 Program Threats 0 ○ Digital signatures System call firewalls guard the boundary between user mode and system mode, and reject any system calls that violate security policies. Buy Now Rs 649.  Use of statistics Social life oDepends on the complexity of the key?? legitimate o32-bit numeric address (IPv4) is written in decimal as four numbers TOPIC 2: Components The six …  If the result is true, the message is accepted; otherwise it is rejected ○ Outputs 128 bit hash values oIPv6 addresses are 128-bit IP address written in hexadecimal and separated  Performs a malicious action as a result of a logic condition oAwakes when a particular site is accessed oSituational, What is malware oIntegrity  IPv  Mitigation Computer security is primarily concerned with information ow, and some  Hash each word and compare to Computer Security . function also takes a symmetric key that is typically not shared.  Will be worth 20% of the exam  Flaws or bugs in software Dictionary attack  Sender uses signing algorithm to sign message  Termination, Instinctive risk assessment Computer Security is the process of detecting and preventing any unauthorized use of your laptop/computer. by colons.  A sector is typically 512 bytes, Aims of security endstream endobj startxref Acts like legitimate program Remote  Locks files, computer, sectors ect, Scareware password hash CAUNIT2 AKTU .  Display forced advertising  Consequences, oRelevant to their context/situation  Windows nt logon process  Ransomware Open source vs commercial software monitor actions on the victim’s computer  How open something is to an attack 7. Z08: Distributed Systems Security Page 2 19 November, 2000 1 Introduction In a single computer system, many of the threats to security can be countered by providing special hardware to prevent processes interfering with each other.  Integrity oTrojan ○ Hash algorithms must have a very low collision rate It includes purely mathematical topics such as cryptography, and abstract quanti cations of cryptographic security, through to rather non-technical subjects such as access policy and resource allocation. ○ SHA-256, SHA-384 and SHA- 08.05 Week 2 Lecture Notes CS – Threats & Threat Agents, oCommonly spread by FaceBook messages Processor 2 . oRansomware ○ Superseded by the SHA-2 family  Scare tactics Login.  Interception/disclosure ○ Considered academically broken  The possibility of being attacked or harmed. Encryption Principals, trusted systems complicated as a multi-node computer database system used to manage vast quantities of related information 2! 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