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Search results “Key scheduling algorithm in cryptography math”
NETWORK SECURITY - DES (DATA ENCRYPTION STANDARD) ALGORITHM
 
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DES algorithm follows the Feistel Structure Most of the Block cipher algorithms follows Feistel Structure BLOCK SIZE - 64 bits Plain Text No. of Rounds - 16 Rounds Key Size - 64 bits Sub Key Size - 48 bits No. of Sub Keys - 16 Sub Keys Cipher Text - 64 bits
Views: 188023 Sundeep Saradhi Kanthety
Lecture 6: Data Encryption Standard (DES): Key Schedule and Decryption by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
AES Rijndael Cipher explained as a Flash animation
 
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Many years ago I came across a clickable flash animation that explained how the Rijndael cipher works. And even though Rijndael is pure, complex math, the animated visualizations made the whole process so crystal clear that I had to bend down to the floor afterwards to pick up my dropped jaw. Since then I know how powerful animated visualizations can be, even (or rather especially) for abstract and/or complex topics. When I started my Go blog, I knew I had to use animations because they are worth a thousand words. I did the same in my Go videos that you can find over here in my channel, and also in my Go course. This video is a recoding of the flash animation while I click through it. The flash animation is still available at formaestudio.com (link below), but no sane browser would agree to play any flash content anymore, so a video capture is the best we can get. I hope the pace of clicking through the steps is just right for you. NOTE: The video has no audio part. This is not a bug, the Flash animation simply had no sounds. The Rijndael Animation (and another Flash program called Rijndael Inspector): http://www.formaestudio.com/rijndaelinspector/ (c) Enrique Zabala. License terms: "Both these programs are free of use." (I guess that publishing a video of the animation is covered by these terms.) My blog: https://appliedgo.net My course: https://appliedgo.com/p/mastergo
Views: 38560 AppliedGo
Rc4 Basics Presentation (2)
 
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Full Video Details: http://www.securitytube.net/video/79
Views: 26039 TheSecurityTube
RC4 Algorithm
 
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This shows the operation of the RC4 algorithm (limited to 5 bits instead of the usual 8) after the key scheduling has happened.
Views: 18351 jgrahamc
DES Key Schedule- Part 2
 
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The video explains the second step in developing DES-Key Schedule
Views: 471 Project Rhea
2016-05-23: public key crypto (part 1 of 3)
 
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https://cloud.sagemath.com/projects/4d0f1d1d-7b70-4fc7-88a4-3b4a54f77b18/files/lectures/2016-05-23/
Views: 375 William Stein
Early Unix Implementation - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 863 Udacity
What is a trapdoor function?
 
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Modern cryptography depends on the existence of several special kinds of mathematical functions. One important kind is a trapdoor function. Trapdoor functions are somewhat similar to hash functions in that they are easy to compute but hard to invert…​ except if you know a secret piece of information. So if someone does not have the secret or key, they cannot invert the function. If they do, they can open the trapdoor and invert the function. Trapdoor functions form the basis of modern cryptographic techniques that are widely-used online. Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo). Part of the https://www.internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
Views: 9114 internet-class
DATA ENCRYPTION AND DECRYPTION TECHNIQUES
 
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LOSSLESS DATA COMPRESSION TECHNIQUES 1) RLE (RUN LENGTH ENCODING) 2) LZ (LEMPEL ZIV)
Views: 84 aniket jadhav
22. Cryptography: Encryption
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas continues with cryptography, introducing encryption methods. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 17912 MIT OpenCourseWare
Algorithms Video 1: Algorithms -- overview
 
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Overview of Algorithms, Complexities, P-NP-NP-Complete by Shai Simonson. All rights owned by Aduni.org. http://www.aduni.org/courses/theory/index.php?view=cw
Views: 2522 Arjun Suresh
RSA Algorithm with Example | Asymmetric Key Cryptography (Public Key Cryptography)
 
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In this network security video tutorial we will study the working of RSA Algorithm. RSA Algorithm theory - 1. Ron Rivest, Adi Shamir and Len Adlemen developed the method called as RSA algorithm. 2. Most popular and proven asymmetric key cryptography algorithm 3. Based on the mathematical fact that it is easy to find and multiply large prime numbers together, but it is extremely difficult to factor their product. RSA Algorithm Steps - 1. Choose two large prime numbers P and Q. 2. Calculate N = P * Q 3. Select the public key (i.e. the encryption key) E such that it is not a factor of [(P – 1) * (Q – 1)]. 4. Select the private key (i.e. the decryption key) D such that the following equation is true: (D * E) mod (P – 1) * (Q – 1) = 1 5. For encryption calculate the cipher text CT from the plain text PT as follows: CT= PT^E mod N 6. Send CT as the cipher text to the receiver 7. For decryption calculate the plain text PT from the cipher text CT as follows: PT = CT^D mod N Complete Network Security / Information Security Playlist - https://www.youtube.com/watch?v=IkfggBVUJxY&list=PLIY8eNdw5tW_7-QrsY_n9nC0Xfhs1tLEK Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets Official Website - http://simplesnippets.tech/ Simple Snippets on Facebook - https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram - https://www.instagram.com/simplesnippets/ Simple Snippets on Twitter - https://twitter.com/simplesnippet Simple Snippets Google Plus Page - https://plus.google.com/+SimpleSnippets Simple Snippets email ID - [email protected] For More Technology News, Latest Updates and Blog articles visit our Official Website - http://simplesnippets.tech/ #RSA #RSAalgorithm #NetworkSecurity #AsymmetricCryptography
Views: 1912 Simple Snippets
RC4 Matlab
 
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Implementing RC4 in Matlab Key Scheduling Algorithm (KSA) Pseudo-random generation algorithm (PRGA)
1. Course Overview, Interval Scheduling
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas gives an overview of the course and introduces an algorithm for optimal interval scheduling. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 199724 MIT OpenCourseWare
R11. Cryptography: More Primitives
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Ling Ren In this recitation, problems related to cryptography are discussed. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 3830 MIT OpenCourseWare
C# - How to create RSA & RC4 Encryption [RO]
 
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◕ RSA = Rivest Shamir Adler Wiki: http://adf.ly/iO9H5 ◕ RC4 = ARCFOUR Wiki: http://adf.ly/iO9LB ◕ Numere Prime: http://adf.ly/iO9PB
Views: 11393 Cyber Code
Overview on S-Box Design Principles
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 28980 nptelhrd
Threat Monitoring (Firewall) and Technique of Encryption in Operating System
 
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Threat Monitoring (Firewall) and Technique of Encryption in Operating System Like Us on Facebook - https://www.facebook.com/Easy-Engineering-Classes-346838485669475/ Operating System Hindi Classes Operating System Tutorial for Beginners in Hindi Operating System Study Notes Operating System Video Lectures
Lecture : 1- introduction (Joy Of Algorithm)
 
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Dr. Rakesh Mohanty Dept of Computer Science Vssut ,Burla
SHA-1 (Secure hash Algorithm) working in English  | CSS series
 
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Take the full crash course of Cryptography and Security System for free at Last moment tuitions Full course : https://lastmomenttuitions.com/course/cryptography-and-system-security/ Sample Notes :https://goo.gl/QpZPF5 For full hand made notes of Artificial Intelligence its only 100 rs payment options is PAYTM :9762903078 once we get payment notification we will mail you the notes on your email id contact us at :[email protected] whatsapp :9762903078 apko koi bhi doubt ho toh app humko direct email ya phone kar sakte ho Cryptography and security systems Series introduction to CSS: https://goo.gl/tjrh1L security goals and mechanism:https://goo.gl/uq35hP symmetric cipher:https://goo.gl/KFxF9j Substitution cipher and its types:https://goo.gl/MKmPzk Transposition cipher:https://goo.gl/uHqD7i diffie -hellman: https://goo.gl/YrskC5 RSA Algorithm:https://goo.gl/KwzCBF Kerberos:https://goo.gl/MQPgzw IDEA algorithm : https://goo.gl/PTCqFH Dos and DDos attack: https://goo.gl/8T345G SQL injection:https://goo.gl/bcVHnw SHA-1 vs MD5 :https://goo.gl/QJBhJD chalo toh public bus pass hojao aur share karo videos ko whatsapp group apne last moment pe unn dosto ko jo apni tarah last moment pe padhte hai Aur videos CSS ke aane waale hai so Channel ko subscribe jaroor karna follow us on: https://www.instagram.com/last_moment_tuitions https://www.facebook.com/lastmomenttuition https://www.facebook.com/sumerr3
Views: 81321 Last moment tuitions
6.875 (Cryptography) L1: Introduction, One-Time Pad
 
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Spring 2018 Cryptography & Cryptanalysis Prof. Shafi Goldwasser
Views: 3917 Andrew Xia
Encryption algorithm Dotnet application
 
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Encryption algorithm Dotnet application AES(Advanced Encryption Standard) Algorithm RC4 Algorithm Triple DES Algorithm Public Key Please contact us for more information: Ph: +91 8549932017 (WhatsApp/SMS text only Please) www.amodhainfotech.com www.amodhait.com [email protected] Mysore,Karnataka,India. Final Year Projects For BE / BTech / B.SC/BCA/ME / MTech / MCA / Diploma Graduates (Mob: (0)8549932017/0821-4191223). AMODHA INFOTECH offers Final Year Project guidance for B.E/B.TECH/M.E/M.Tech(CSE,ISE,IT,ECE,EEE) BSC/BCA/MSC/MCA/MS(IT)/MS(Software Engg) We Offer projects in following technologies 1.JAVA/J2EE 2.Dot NET 3.PHP 4.Embedded System 5.IOT 6.NS2 /NS3 7.MATLAB 8.Android mobile applications
Views: 74 Amodha InfoTech
Symmetric Key Ciphers
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 18509 nptelhrd
data encryption standard ,des animated  tutorial
 
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https://8gwifi.org/CipherFunctions.jsp Encryption Decryption Online https://8gwifi.org/CipherFunctions.jsp what is DES DATA ENCRYPTION STANDARD (DES) The Data Encryption Standard (DES) specifies two FIPS approved cryptographic algorithms as required by FIPS 140-1. When used in conjunction with American National Standards Institute (ANSI) X9.52 standard, this publication provides a complete description of the mathematical algorithms for encrypting (enciphering) and decrypting (deciphering) binary coded information. Encrypting data converts it to an unintelligible form called cipher. Decrypting cipher converts the data back to its original form called plaintext. The algorithms described in this standard specifies both enciphering and deciphering operations which are based on a binary number called a key computer security cryptography data encryption standard animation
Views: 73967 Zariga Tongy
Block Cipher
 
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Views: 16280 Internetwork Security
What is Encryption and Decryption - Basics | Akshay Gaikwad | V2V Classes
 
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For document do visit - http://v2vclass.com/ Address : Kalyan E - https://g.co/kgs/FqHSTh Address : Kalyan W - https://g.co/kgs/PZLvk5 For more details contact - 8291474027
Views: 1430 v2v class
Various Operations in Fuzzy Logic with Example | Union, Intersection, Complement etc.
 
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Views: 2101 Gate Smashers
Differential Cryptanalysis
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 14973 nptelhrd
RSA Algorithm Animation
 
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Discrete Mathematics Homework. Sources: http://omerozcan.net/rsa/ https://tr.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/intro-to-rsa-encryption Project code link: https://yadi.sk/d/BRLDPvyt3ZfqJG
Views: 1287 Burak Parlak
DES (Contd.).
 
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Views: 7982 Internetwork Security
12. Greedy Algorithms: Minimum Spanning Tree
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Erik Demaine In this lecture, Professor Demaine introduces greedy algorithms, which make locally-best choices without regards to the future. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 87990 MIT OpenCourseWare
Puzzle 2: The Best Time to Party
 
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MIT 6.S095 Programming for the Puzzled, IAP 2018 View the complete course: https://ocw.mit.edu/6-S095IAP18 Instructor: Srini Devadas Ever wanted to go to a party at just the right time so you can hang out with all the cool people? Prof. Devadas describes an efficient, algorithmic way of finding this time and explains how you can write a program that computes the best time. License: Creative Commons BY-NC-SA More information at https://ocw.mit.edu/terms More courses at https://ocw.mit.edu
Views: 10156 MIT OpenCourseWare
GopherCon 2018: Filippo Valsorda- Asynchronous Networking Patterns
 
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Go is the language of API servers, of protocols and of network daemons. And while sometimes the standard library provides all the abstractions we need, that means interacting with net.Conn. Thanks to the freedom of blocking goroutines, Go developed its own patterns in interacting with asynchronous networking. In Filippo’s tutorial session, he will go over some of the most common, useful or tricky patterns, with examples from the standard library and other popular projects. First, he will look at the basic interaction of goroutines with net.Listener, the accept loop, and spawning servicing goroutines. Next, Filippo will focus on how to manage and schedule resources. Finally, he will look at how to test, benchmark, and extend net.Conn implementations by wrapping them. By the end, this session should give you an understanding of what is going on in packages like net/http and crypto/tls, or what you need to keep in mind while developing network protocol implementations.
Views: 6231 Gopher Academy
Deferred Database Modification in DBMS | Log Based Recovery | Imp for UGC NET and KVS
 
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Deferred recovery is type of Log based Recovery. Imp for UGC NET and KVS exams Immediate Recovery Link: https://www.youtube.com/watch?v=47LvbDGD4cc&t=139s
Views: 12973 Gate Smashers
5. Amortization: Amortized Analysis
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Erik Demaine In this lecture, Professor Demaine introduces analysis techniques for data structures, and the implementation of algorithms based on this analysis. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 43930 MIT OpenCourseWare
User Authentication Introduction - Passwords Based , Derived from Passwords, MD of Passwords
 
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User Authentication Introduction to Passwords Based Authentication, Derived from Passwords, MD of Passwords Keywords: User Authentication Password Based Authentication Network Security Notes Computer Network Security Notes Something derived from passwords Problems with Clear Text Password Schemes Message Digest(MD) of Passwords
Cryptography for Embedded Systems Tutorial
 
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Embedded System Software Tutorial: Cryptography Prof. Phil Koopman, Carnegie Mellon University For slides, see: https://users.ece.cmu.edu/~koopman/lectures/
Views: 156 Phil Koopman
Fred Chong: Closing the Gap Between Quantum Algorithms and Hardware
 
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The Yale Quantum Institute welcomes Fred Chong of University of Chicago for a colloquium “Closing the Gap Between Quantum Algorithms and Hardware through Software-Enabled Vertical Integration and Co-Design”. This talk brought together Yale quantum physicists, computer scientists, and electrical engineers. Quantum computing is at an inflection point, where 72-qubit (quantum bit) machines are under test, 100-qubit machines are just around the corner, and even 1000-qubit machines are perhaps only a few years away. These machines have the potential to fundamentally change our concept of what is computable and demonstrate practical applications in areas such as quantum chemistry, optimization, and quantum simulation. Yet a significant resource gap remains between practical quantum algorithms and real machines. Programming, compilation and control will play a key role in increasing the efficiency of algorithms and machines to close this gap. In this video, Fred Chong will outline several grand research challenges in closing this gap, including programming language design, software and hardware verification, defining and perforating abstraction boundaries, cross-layer optimization, managing parallelism and communication, mapping and scheduling computations, reducing control complexity, machine-specific optimizations, learning error patterns, and many more. He will also describe the resources and infrastructure available for starting research in quantum computing and for tackling these challenges. This colloquium is co-sponsored by Yale Computer Science and Electrical Engineering departments.
Views: 1193 YaleUniversity
Theorem based Derivation of an AES Implementation
 
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CUFP 2011: John Launchbury, Galois Even though step-by-step refinement has long been seen as desirable, it is hard to find compelling industrial applications of the technique. In theory, transforming a high-level specification into a high-performance implementation is an ideal means of producing a correct design, but in practice it is hard to make it work, and even harder to make it worthwhile. This talk describes an exception. We relate a design experience in which theorem-based refinement played a crucial role in producing an industrial quality FPGA encryptor and decryptor for AES. Quite simply, we are unlikely to have succeeded without the technique. We began with a specification for AES written in Cryptol, a high-level functional language designed specifically for describing the domain of bit-level computations as arise in Cryptography. Over a series of five design stages we were able to produce an industrial grade encrypt core. In each stage, we stated theorems which related the component behaviors in one stage with the corresponding behaviors in the refinement. The resulting cores, running at 350Mhz-440Mhz depending on the FPGA part, bore little relationship to the original, except that the step-by-step theorems ensured we had not gone astray. The next significant challenge we faced was in performing decrypt. While there are many similarities between encrypt and decrypt in AES, there are some crucial differences with regard to high performance. First concerns the generation of key material. The AES key is used as a seed for a specific pseudo-random number generator which produces key material for use in each of the AES rounds. For encrypt, the key-generator runs in sync with the action of encryption, so may be scheduled alongside it. For decrypt, they run counter to one-another, facing a major challenge to be overcome. Second, the generated key material needs to have an additional transformation applied to it, which occurs deep in the middle of the high performing core. Using theorems as stepping stones along the way, we redesigned the key expansion algorithm so that it would run in sync with the decryption, and we traced parallel steps to the derivation of encrypt, establishing a commuting ladder diagram along the way. At each barriers in development, we produced many theorems to isolate the bug, using theorems as a principled kind of printf. When the bug was eradicated, we elided many of the temporary theorems, leaving behind those that provided important insights into the behavior of the code. This talk is a story of the journey with demonstrations of the tool at work. Its ultimate message is to highlight the value of including a theorem facility within purely functional domain-specific languages.
Views: 338 anilmvs
13. Incremental Improvement: Max Flow, Min Cut
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas introduces network flow, and the Max Flow, Min Cut algorithm. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 54848 MIT OpenCourseWare
Lec-60: Irrecoverable Vs Recoverable Schedules in Transactions | DBMS
 
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#RecoverablevsIrrecoverable#DBMS#freeEducationGATE Difference between recoverable and irrecoverable schedules with example. Imp for GATE, UGC NET and other competitive exams.
Views: 8013 Gate Smashers