{"id":5213,"date":"2026-05-21T09:30:10","date_gmt":"2026-05-21T09:30:10","guid":{"rendered":"https:\/\/diznr.com\/?p=5213"},"modified":"2026-05-22T06:02:24","modified_gmt":"2026-05-22T06:02:24","slug":"gate-cseit-computer-science-b-tech-and-gate-computer-science-notes-network-security-pdf","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/pdf\/gate-cseit-computer-science-b-tech-and-gate-computer-science-notes-network-security-pdf\/","title":{"rendered":"GATE CSEIT Computer Science\/B. tech and Gate Computer Science Notes \/Network Security.pdf"},"content":{"rendered":"<div id=\"pl-5213\" class=\"panel-layout\">\n<div id=\"pg-5213-0\" class=\"panel-grid panel-no-style\">\n<div id=\"pgc-5213-0-0\" class=\"panel-grid-cell\" data-weight=\"1\">\n<div id=\"panel-5213-0-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"0\" data-style=\"{&quot;background_image_attachment&quot;:false,&quot;background_display&quot;:&quot;tile&quot;}\">\n<div class=\"textwidget\">Students can read these notes for exam preparation. These notes have been created after a thorough research by a subject expert and are written in simple language for easy understanding of the students. Network security is any activity designed to protect the usability and integrity of your network and data. It includes both hardware and software technologies. It targets a variety of threats. It prevents them from entering or spreading your network. Effective network security manages access to the network. These notes on network security will serve the purpose and they will Very useful for B. Tech exams as well as competitive exams<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"pg-5213-1\" class=\"panel-grid panel-no-style\">\n<div id=\"pgc-5213-1-0\" class=\"panel-grid-cell\" data-weight=\"1\">\n<div id=\"panel-5213-1-0-1\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-last-child\" data-index=\"2\" data-style=\"{&quot;background_image_attachment&quot;:false,&quot;background_display&quot;:&quot;tile&quot;}\">\n<div class=\"textwidget\">\n<p data-start=\"0\" data-end=\"204\">Accessing comprehensive and reliable study materials is crucial for effective preparation in Network Security for GATE CSE\/IT. Here are some reputable resources offering notes and materials in PDF format:<\/p>\n<ol data-start=\"206\" data-end=\"1321\">\n<li data-start=\"206\" data-end=\"460\">\n<p data-start=\"209\" data-end=\"251\"><strong data-start=\"209\" data-end=\"250\">GitHub Repository by Shashank Rustagi<\/strong>:<\/p>\n<ul data-start=\"255\" data-end=\"460\">\n<li data-start=\"255\" data-end=\"460\">This repository contains concise notes on various GATE CSE subjects, including Computer Networks. The notes are tailored for GATE aspirants and can be accessed here:<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"462\" data-end=\"655\">\n<p data-start=\"465\" data-end=\"480\"><strong data-start=\"465\" data-end=\"479\">SelfStudys<\/strong>:<\/p>\n<ul data-start=\"484\" data-end=\"655\">\n<li data-start=\"484\" data-end=\"655\">Offers GATE 2025 Core Subjects notes, including a section on Network Security for CSE. These notes are available for free download:<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"657\" data-end=\"902\">\n<p data-start=\"660\" data-end=\"715\"><strong data-start=\"660\" data-end=\"714\">Veer Surendra Sai University of Technology (VSSUT)<\/strong>:<\/p>\n<ul data-start=\"719\" data-end=\"902\">\n<li data-start=\"719\" data-end=\"902\">Provides lecture notes on Cryptography and Network Security, covering fundamental concepts essential for GATE preparation. Access the PDF here:<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"904\" data-end=\"1111\">\n<p data-start=\"907\" data-end=\"925\"><strong data-start=\"907\" data-end=\"924\">GeeksforGeeks<\/strong>:<\/p>\n<ul data-start=\"929\" data-end=\"1111\">\n<li data-start=\"929\" data-end=\"1111\">A comprehensive collection of GATE CS notes, including topics on Network Security. These notes are structured to align with the GATE syllabus:<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1113\" data-end=\"1321\">\n<p data-start=\"1116\" data-end=\"1134\"><strong data-start=\"1116\" data-end=\"1133\">GATE Vidyalay<\/strong>:<\/p>\n<ul data-start=\"1138\" data-end=\"1321\">\n<li data-start=\"1138\" data-end=\"1321\">Provides detailed notes on Cryptography and Network Security, including explanations of key algorithms and concepts. Access the materials here:<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-start=\"1323\" data-end=\"1509\"><strong data-start=\"1323\" data-end=\"1331\">Note<\/strong>: Always ensure that you access and use study materials through legal and ethical means, respecting copyright laws and the intellectual property rights of authors and publishers.<\/p>\n<p data-start=\"1511\" data-end=\"1629\">These resources should assist you in your preparation for the Network Security section of the GATE CSE\/IT examination.<\/p>\n<h3 data-start=\"1511\" data-end=\"1629\"><a href=\"https:\/\/gate2024.iisc.ac.in\/wp-content\/uploads\/2023\/07\/cs.pdf\" target=\"_blank\" rel=\"noopener\">GATE CSEIT Computer Science\/B. tech and Gate Computer Science Notes \/Network Security.pdf<\/a><\/h3>\n<div class=\"article-title\">\n<h2 data-section-id=\"1pup8y2\" data-start=\"355\" data-end=\"396\"><span role=\"text\"><strong data-start=\"357\" data-end=\"396\">1. Introduction to Network Security<\/strong><\/span><\/h2>\n<h2 data-section-id=\"x5vnhs\" data-start=\"397\" data-end=\"414\"><span role=\"text\"><strong data-start=\"400\" data-end=\"414\">Definition<\/strong><\/span><\/h2>\n<p data-start=\"415\" data-end=\"494\">Network Security involves protecting computer networks, systems, and data from:<\/p>\n<ul data-start=\"495\" data-end=\"572\">\n<li data-section-id=\"13mi38w\" data-start=\"495\" data-end=\"516\">Unauthorized access<\/li>\n<li data-section-id=\"d5u69o\" data-start=\"517\" data-end=\"532\">Cyber attacks<\/li>\n<li data-section-id=\"x2ve5l\" data-start=\"533\" data-end=\"542\">Malware<\/li>\n<li data-section-id=\"3tek2b\" data-start=\"543\" data-end=\"555\">Data theft<\/li>\n<li data-section-id=\"1m2iluq\" data-start=\"556\" data-end=\"572\">Network misuse<\/li>\n<\/ul>\n<h2 data-section-id=\"1lhp0xe\" data-start=\"574\" data-end=\"606\"><span role=\"text\"><strong data-start=\"577\" data-end=\"606\">Goals of Network Security<\/strong><\/span><\/h2>\n<ol data-start=\"607\" data-end=\"863\">\n<li data-section-id=\"1fzy7nx\" data-start=\"607\" data-end=\"654\"><strong data-start=\"610\" data-end=\"629\">Confidentiality<\/strong> \u2013 Data remains private<\/li>\n<li data-section-id=\"l6qx40\" data-start=\"655\" data-end=\"706\"><strong data-start=\"658\" data-end=\"671\">Integrity<\/strong> \u2013 Data is not modified illegally<\/li>\n<li data-section-id=\"196hkku\" data-start=\"707\" data-end=\"757\"><strong data-start=\"710\" data-end=\"726\">Availability<\/strong> \u2013 Services remain accessible<\/li>\n<li data-section-id=\"19k2a2k\" data-start=\"758\" data-end=\"804\"><strong data-start=\"761\" data-end=\"779\">Authentication<\/strong> \u2013 Verify user identity<\/li>\n<li data-section-id=\"rgf5np\" data-start=\"805\" data-end=\"863\"><strong data-start=\"808\" data-end=\"827\">Non-Repudiation<\/strong> \u2013 Sender cannot deny sending data<\/li>\n<\/ol>\n<h2 data-section-id=\"3592ss\" data-start=\"870\" data-end=\"891\"><span role=\"text\"><strong data-start=\"872\" data-end=\"891\">2. Cryptography<\/strong><\/span><\/h2>\n<h2 data-section-id=\"16l3k2w\" data-start=\"893\" data-end=\"929\"><span role=\"text\"><strong data-start=\"896\" data-end=\"929\">A. Symmetric Key Cryptography<\/strong><\/span><\/h2>\n<ul data-start=\"930\" data-end=\"1011\">\n<li data-section-id=\"1x6vzjs\" data-start=\"930\" data-end=\"975\">Same key used for encryption and decryption<\/li>\n<li data-section-id=\"1cakn6p\" data-start=\"976\" data-end=\"1011\">Faster than asymmetric encryption<\/li>\n<\/ul>\n<h3 data-section-id=\"1cvilsq\" data-start=\"1013\" data-end=\"1027\">Algorithms<\/h3>\n<ul data-start=\"1028\" data-end=\"1050\">\n<li data-section-id=\"1o4efu\" data-start=\"1028\" data-end=\"1033\">DES<\/li>\n<li data-section-id=\"1o4fbz\" data-start=\"1034\" data-end=\"1039\">AES<\/li>\n<li data-section-id=\"14yoolm\" data-start=\"1040\" data-end=\"1050\">Blowfish<\/li>\n<\/ul>\n<h3 data-section-id=\"48h0qw\" data-start=\"1052\" data-end=\"1063\">Formula<\/h3>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">Ciphertext=Encrypt(Plaintext,Key)Ciphertext = Encrypt(Plaintext, Key)<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord mathnormal\">p<\/span><span class=\"mord mathnormal\">h<\/span><span class=\"mord mathnormal\">er<\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mord mathnormal\">e<\/span><span class=\"mord mathnormal\">x<\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">E<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mord mathnormal\">cry<\/span><span class=\"mord mathnormal\">pt<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">Pl<\/span><span class=\"mord mathnormal\">ain<\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mord mathnormal\">e<\/span><span class=\"mord mathnormal\">x<\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mpunct\">,<\/span><span class=\"mord mathnormal\">Key<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 data-section-id=\"1l3n95q\" data-start=\"1108\" data-end=\"1122\">Advantages<\/h3>\n<ul data-start=\"1123\" data-end=\"1166\">\n<li data-section-id=\"lh4acj\" data-start=\"1123\" data-end=\"1140\">Fast processing<\/li>\n<li data-section-id=\"bt5ehb\" data-start=\"1141\" data-end=\"1166\">Suitable for large data<\/li>\n<\/ul>\n<h3 data-section-id=\"k3ig8w\" data-start=\"1168\" data-end=\"1185\">Disadvantages<\/h3>\n<ul data-start=\"1186\" data-end=\"1212\">\n<li data-section-id=\"lv4fxq\" data-start=\"1186\" data-end=\"1212\">Key distribution problem<\/li>\n<\/ul>\n<h2 data-section-id=\"1fnd8dm\" data-start=\"1219\" data-end=\"1256\"><span role=\"text\"><strong data-start=\"1222\" data-end=\"1256\">B. Asymmetric Key Cryptography<\/strong><\/span><\/h2>\n<ul data-start=\"1257\" data-end=\"1290\">\n<li data-section-id=\"1cu4r8f\" data-start=\"1257\" data-end=\"1290\">Uses Public Key and Private Key<\/li>\n<\/ul>\n<h3 data-section-id=\"1cvilsq\" data-start=\"1292\" data-end=\"1306\">Algorithms<\/h3>\n<ul data-start=\"1307\" data-end=\"1335\">\n<li data-section-id=\"1o4t6w\" data-start=\"1307\" data-end=\"1312\">RSA<\/li>\n<li data-section-id=\"170w9bf\" data-start=\"1313\" data-end=\"1329\">Diffie-Hellman<\/li>\n<li data-section-id=\"1o4iq5\" data-start=\"1330\" data-end=\"1335\">ECC<\/li>\n<\/ul>\n<h3 data-section-id=\"wggvqn\" data-start=\"1337\" data-end=\"1353\">Applications<\/h3>\n<ul data-start=\"1354\" data-end=\"1397\">\n<li data-section-id=\"i8wdun\" data-start=\"1354\" data-end=\"1376\">Secure communication<\/li>\n<li data-section-id=\"1dsqmbp\" data-start=\"1377\" data-end=\"1397\">Digital signatures<\/li>\n<\/ul>\n<h2 data-section-id=\"93aau0\" data-start=\"1404\" data-end=\"1427\"><span role=\"text\"><strong data-start=\"1406\" data-end=\"1427\">3. Hash Functions<\/strong><\/span><\/h2>\n<h2 data-section-id=\"1ei9rx7\" data-start=\"1428\" data-end=\"1442\"><span role=\"text\"><strong data-start=\"1431\" data-end=\"1442\">Purpose<\/strong><\/span><\/h2>\n<p data-start=\"1443\" data-end=\"1484\">Convert data into fixed-size hash values.<\/p>\n<h2 data-section-id=\"sy21k4\" data-start=\"1486\" data-end=\"1503\"><span role=\"text\"><strong data-start=\"1489\" data-end=\"1503\">Properties<\/strong><\/span><\/h2>\n<ul data-start=\"1504\" data-end=\"1564\">\n<li data-section-id=\"1hm2egc\" data-start=\"1504\" data-end=\"1522\">One-way function<\/li>\n<li data-section-id=\"14cm84k\" data-start=\"1523\" data-end=\"1542\">Fixed output size<\/li>\n<li data-section-id=\"c171dz\" data-start=\"1543\" data-end=\"1564\">Collision resistant<\/li>\n<\/ul>\n<h2 data-section-id=\"1mxt7g9\" data-start=\"1566\" data-end=\"1583\"><span role=\"text\"><strong data-start=\"1569\" data-end=\"1583\">Algorithms<\/strong><\/span><\/h2>\n<ul data-start=\"1584\" data-end=\"1607\">\n<li data-section-id=\"1o4btg\" data-start=\"1584\" data-end=\"1589\">MD5<\/li>\n<li data-section-id=\"177sf7y\" data-start=\"1590\" data-end=\"1597\">SHA-1<\/li>\n<li data-section-id=\"14682b2\" data-start=\"1598\" data-end=\"1607\">SHA-256<\/li>\n<\/ul>\n<h2 data-section-id=\"c8ma3m\" data-start=\"1614\" data-end=\"1640\"><span role=\"text\"><strong data-start=\"1616\" data-end=\"1640\">4. Digital Signature<\/strong><\/span><\/h2>\n<h2 data-section-id=\"x5vnhs\" data-start=\"1641\" data-end=\"1658\"><span role=\"text\"><strong data-start=\"1644\" data-end=\"1658\">Definition<\/strong><\/span><\/h2>\n<p data-start=\"1659\" data-end=\"1684\">Technique used to verify:<\/p>\n<ul data-start=\"1685\" data-end=\"1729\">\n<li data-section-id=\"1fyy73l\" data-start=\"1685\" data-end=\"1699\">Authenticity<\/li>\n<li data-section-id=\"1b8u03z\" data-start=\"1700\" data-end=\"1711\">Integrity<\/li>\n<li data-section-id=\"1sw9i94\" data-start=\"1712\" data-end=\"1729\">Non-repudiation<\/li>\n<\/ul>\n<h2 data-section-id=\"331v9q\" data-start=\"1731\" data-end=\"1745\"><span role=\"text\"><strong data-start=\"1734\" data-end=\"1745\">Process<\/strong><\/span><\/h2>\n<ol data-start=\"1746\" data-end=\"1848\">\n<li data-section-id=\"1tjd8ke\" data-start=\"1746\" data-end=\"1772\">Sender hashes message<\/li>\n<li data-section-id=\"1hude3r\" data-start=\"1773\" data-end=\"1808\">Encrypts hash with private key<\/li>\n<li data-section-id=\"14ycu5r\" data-start=\"1809\" data-end=\"1848\">Receiver decrypts using public key<\/li>\n<\/ol>\n<h2 data-section-id=\"iadjxq\" data-start=\"1855\" data-end=\"1888\"><span role=\"text\"><strong data-start=\"1857\" data-end=\"1888\">5. Network Security Attacks<\/strong><\/span><\/h2>\n<h2 data-section-id=\"464l2t\" data-start=\"1890\" data-end=\"1912\"><span role=\"text\"><strong data-start=\"1893\" data-end=\"1912\">Passive Attacks<\/strong><\/span><\/h2>\n<ul data-start=\"1913\" data-end=\"1947\">\n<li data-section-id=\"bslrrp\" data-start=\"1913\" data-end=\"1928\">Eavesdropping<\/li>\n<li data-section-id=\"jzobpz\" data-start=\"1929\" data-end=\"1947\">Traffic analysis<\/li>\n<\/ul>\n<h2 data-section-id=\"hmvgia\" data-start=\"1949\" data-end=\"1970\"><span role=\"text\"><strong data-start=\"1952\" data-end=\"1970\">Active Attacks<\/strong><\/span><\/h2>\n<ul data-start=\"1971\" data-end=\"2048\">\n<li data-section-id=\"xsmzs4\" data-start=\"1971\" data-end=\"1983\">Masquerade<\/li>\n<li data-section-id=\"1fd4agj\" data-start=\"1984\" data-end=\"1999\">Replay attack<\/li>\n<li data-section-id=\"15ec6z2\" data-start=\"2000\" data-end=\"2025\">Denial of Service (DoS)<\/li>\n<li data-section-id=\"1lb1jl9\" data-start=\"2026\" data-end=\"2048\">Modification attacks<\/li>\n<\/ul>\n<h2 data-section-id=\"hsipgf\" data-start=\"2055\" data-end=\"2071\"><span role=\"text\"><strong data-start=\"2057\" data-end=\"2071\">6. Malware<\/strong><\/span><\/h2>\n<h2 data-section-id=\"tdif7y\" data-start=\"2072\" data-end=\"2084\"><span role=\"text\"><strong data-start=\"2075\" data-end=\"2084\">Types<\/strong><\/span><\/h2>\n<ul data-start=\"2085\" data-end=\"2137\">\n<li data-section-id=\"17c16xv\" data-start=\"2085\" data-end=\"2092\">Virus<\/li>\n<li data-section-id=\"1j4gdwv\" data-start=\"2093\" data-end=\"2099\">Worm<\/li>\n<li data-section-id=\"4gcalj\" data-start=\"2100\" data-end=\"2114\">Trojan Horse<\/li>\n<li data-section-id=\"8wpfr9\" data-start=\"2115\" data-end=\"2127\">Ransomware<\/li>\n<li data-section-id=\"1n0tzyr\" data-start=\"2128\" data-end=\"2137\">Spyware<\/li>\n<\/ul>\n<h2 data-section-id=\"naq7r6\" data-start=\"2144\" data-end=\"2162\"><span role=\"text\"><strong data-start=\"2146\" data-end=\"2162\">7. Firewalls<\/strong><\/span><\/h2>\n<h2 data-section-id=\"x5vnhs\" data-start=\"2163\" data-end=\"2180\"><span role=\"text\"><strong data-start=\"2166\" data-end=\"2180\">Definition<\/strong><\/span><\/h2>\n<p data-start=\"2181\" data-end=\"2230\">A firewall filters incoming and outgoing traffic.<\/p>\n<h2 data-section-id=\"tdif7y\" data-start=\"2232\" data-end=\"2244\"><span role=\"text\"><strong data-start=\"2235\" data-end=\"2244\">Types<\/strong><\/span><\/h2>\n<ol data-start=\"2245\" data-end=\"2354\">\n<li data-section-id=\"bpnom4\" data-start=\"2245\" data-end=\"2275\">Packet Filtering Firewall<\/li>\n<li data-section-id=\"1cwa75t\" data-start=\"2276\" data-end=\"2309\">Stateful Inspection Firewall<\/li>\n<li data-section-id=\"1cz52pm\" data-start=\"2310\" data-end=\"2329\">Proxy Firewall<\/li>\n<li data-section-id=\"ghx83h\" data-start=\"2330\" data-end=\"2354\">Application Gateway<\/li>\n<\/ol>\n<h2 data-section-id=\"1m20lv9\" data-start=\"2361\" data-end=\"2394\"><span role=\"text\"><strong data-start=\"2363\" data-end=\"2394\">8. Authentication Protocols<\/strong><\/span><\/h2>\n<ul data-start=\"2395\" data-end=\"2492\">\n<li data-section-id=\"9zyyhj\" data-start=\"2395\" data-end=\"2420\">Password authentication<\/li>\n<li data-section-id=\"48my7k\" data-start=\"2421\" data-end=\"2454\">Two-factor authentication (2FA)<\/li>\n<li data-section-id=\"mwtgsd\" data-start=\"2455\" data-end=\"2465\">Kerberos<\/li>\n<li data-section-id=\"1py7jzc\" data-start=\"2466\" data-end=\"2492\">Biometric authentication<\/li>\n<\/ul>\n<h2 data-section-id=\"1m4xq1p\" data-start=\"2499\" data-end=\"2532\"><span role=\"text\"><strong data-start=\"2501\" data-end=\"2532\">9. Secure Network Protocols<\/strong><\/span><\/h2>\n<h2 data-section-id=\"ltr359\" data-start=\"2534\" data-end=\"2548\"><span role=\"text\"><strong data-start=\"2537\" data-end=\"2548\">SSL\/TLS<\/strong><\/span><\/h2>\n<ul data-start=\"2549\" data-end=\"2575\">\n<li data-section-id=\"1gye1m7\" data-start=\"2549\" data-end=\"2575\">Secure web communication<\/li>\n<\/ul>\n<h2 data-section-id=\"19oui32\" data-start=\"2577\" data-end=\"2589\"><span role=\"text\"><strong data-start=\"2580\" data-end=\"2589\">HTTPS<\/strong><\/span><\/h2>\n<ul data-start=\"2590\" data-end=\"2606\">\n<li data-section-id=\"dl15v7\" data-start=\"2590\" data-end=\"2606\">HTTP + SSL\/TLS<\/li>\n<\/ul>\n<h2 data-section-id=\"tdphd5\" data-start=\"2608\" data-end=\"2620\"><span role=\"text\"><strong data-start=\"2611\" data-end=\"2620\">IPSec<\/strong><\/span><\/h2>\n<ul data-start=\"2621\" data-end=\"2645\">\n<li data-section-id=\"1oos9wj\" data-start=\"2621\" data-end=\"2645\">Network layer security<\/li>\n<\/ul>\n<h2 data-section-id=\"eybo4t\" data-start=\"2647\" data-end=\"2657\"><span role=\"text\"><strong data-start=\"2650\" data-end=\"2657\">SSH<\/strong><\/span><\/h2>\n<ul data-start=\"2658\" data-end=\"2679\">\n<li data-section-id=\"1itirp4\" data-start=\"2658\" data-end=\"2679\">Secure remote login<\/li>\n<\/ul>\n<h2 data-section-id=\"1kiq53e\" data-start=\"2686\" data-end=\"2720\"><span role=\"text\"><strong data-start=\"2688\" data-end=\"2720\">10. Network Security Devices<\/strong><\/span><\/h2>\n<ul data-start=\"2721\" data-end=\"2809\">\n<li data-section-id=\"1tkmf6a\" data-start=\"2721\" data-end=\"2755\">IDS (Intrusion Detection System)<\/li>\n<li data-section-id=\"1ikbivj\" data-start=\"2756\" data-end=\"2791\">IPS (Intrusion Prevention System)<\/li>\n<li data-section-id=\"1o4wkg\" data-start=\"2792\" data-end=\"2797\">VPN<\/li>\n<li data-section-id=\"14rd6mp\" data-start=\"2798\" data-end=\"2809\">Antivirus<\/li>\n<\/ul>\n<h2 data-section-id=\"15xn1l7\" data-start=\"2816\" data-end=\"2847\"><span role=\"text\"><strong data-start=\"2818\" data-end=\"2847\">11. Important GATE Topics<\/strong><\/span><\/h2>\n<h2 data-section-id=\"1597e0h\" data-start=\"2848\" data-end=\"2876\">Frequently Asked Concepts<\/h2>\n<ul data-start=\"2877\" data-end=\"3011\">\n<li data-section-id=\"1rhfft3\" data-start=\"2877\" data-end=\"2892\">RSA algorithm<\/li>\n<li data-section-id=\"1fsrx5z\" data-start=\"2893\" data-end=\"2922\">Diffie-Hellman Key Exchange<\/li>\n<li data-section-id=\"1s23u2w\" data-start=\"2923\" data-end=\"2935\">AES vs DES<\/li>\n<li data-section-id=\"j5wvbu\" data-start=\"2936\" data-end=\"2945\">Hashing<\/li>\n<li data-section-id=\"1dsqmbp\" data-start=\"2946\" data-end=\"2966\">Digital signatures<\/li>\n<li data-section-id=\"zjf9ds\" data-start=\"2967\" data-end=\"2976\">SSL\/TLS<\/li>\n<li data-section-id=\"izp1il\" data-start=\"2977\" data-end=\"2993\">Firewall types<\/li>\n<li data-section-id=\"1bjw5kd\" data-start=\"2994\" data-end=\"3011\">Network attacks<\/li>\n<\/ul>\n<h2 data-section-id=\"1kkill8\" data-start=\"3018\" data-end=\"3044\"><span role=\"text\"><strong data-start=\"3020\" data-end=\"3044\">12. Preparation Tips<\/strong><\/span><\/h2>\n<ol data-start=\"3045\" data-end=\"3270\">\n<li data-section-id=\"vwyu8y\" data-start=\"3045\" data-end=\"3079\">Study cryptography thoroughly<\/li>\n<li data-section-id=\"1qmxc96\" data-start=\"3080\" data-end=\"3142\">Practice numerical problems on RSA and modular arithmetic<\/li>\n<li data-section-id=\"de69ev\" data-start=\"3143\" data-end=\"3183\">Learn differences between protocols<\/li>\n<li data-section-id=\"1666y3w\" data-start=\"3184\" data-end=\"3225\">Revise attacks and firewall concepts<\/li>\n<li data-section-id=\"1n0bmfd\" data-start=\"3226\" data-end=\"3270\">Solve previous GATE questions regularly<\/li>\n<\/ol>\n<h2 data-section-id=\"1xbaa5g\" data-start=\"3277\" data-end=\"3314\"><span role=\"text\"><strong data-start=\"3279\" data-end=\"3314\">13. Best Features of Good Notes<\/strong><\/span><\/h2>\n<ul data-start=\"3315\" data-end=\"3481\">\n<li data-section-id=\"4zn0rr\" data-start=\"3315\" data-end=\"3344\">Short theory explanations<\/li>\n<li data-section-id=\"u4ztwo\" data-start=\"3345\" data-end=\"3372\">Diagrams and flowcharts<\/li>\n<li data-section-id=\"84fbka\" data-start=\"3373\" data-end=\"3403\">Protocol comparison tables<\/li>\n<li data-section-id=\"17zbyfn\" data-start=\"3404\" data-end=\"3426\">Important formulas<\/li>\n<li data-section-id=\"1iqiaws\" data-start=\"3427\" data-end=\"3459\">GATE previous year questions<\/li>\n<li data-section-id=\"15tb0bt\" data-start=\"3460\" data-end=\"3481\">MCQs with answers<\/li>\n<\/ul>\n<h2><a href=\"https:\/\/static.pw.live\/5eb393ee95fab7468a79d189\/GLOBAL_CMS_BLOGS\/a483295c-2895-4375-bfa7-21b750de1c8b.pdf\" target=\"_blank\" rel=\"noopener\">GATE CSEIT Computer Science\/B. tech and Gate Computer Science Notes \/Network Security.pdf<\/a><\/h2>\n<h2 id=\"_uvAPaoXBJO7Y1e8Pw8zk-AY_54\" class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/mrcet.com\/downloads\/digital_notes\/CSE\/III%20Year\/COMPUTER%20NETWORKS%20NOTES.pdf\" target=\"_blank\" rel=\"noopener\">computer networks [r15a0513] lecture notes<\/a><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Students can read these notes for exam preparation. These notes have been created after a thorough research by a subject expert and are written in simple language for easy understanding of the students. Network security is any activity designed to protect the usability and integrity of your network and data. It includes both hardware and [&hellip;]<\/p>\n","protected":false},"author":64,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1139],"tags":[1133,1134,1135,1136,1137,1138,1140,1141,1142,1143],"class_list":["post-5213","post","type-post","status-publish","format-standard","hentry","category-gate-computer-science-notes-network-security-pdf","tag-computer-network-security-pdf","tag-cryptography-and-network-security-forouzan","tag-cryptography-and-network-security-pdf","tag-cryptography-and-network-security-principles-and-practice-pdf","tag-firewall-pdf","tag-gate-computer-science-network-security-pdf","tag-network-security-pdf","tag-network-security-questions-and-answers-pdf","tag-nmap-network-scanning-pdf","tag-types-of-attacks-in-network-security-pdf"],"_links":{"self":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/5213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/users\/64"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/comments?post=5213"}],"version-history":[{"count":2,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/5213\/revisions"}],"predecessor-version":[{"id":11457,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/5213\/revisions\/11457"}],"wp:attachment":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/media?parent=5213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/categories?post=5213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/tags?post=5213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}