Take the Full Course of Cryptography and Network Security
What we Provide
1) 20 Videos (Index is given down) + More Update will be Coming Before final exams
2)Hand made Notes with problems for your to practice
3)Strategy to Score Good Marks in Cryptography and Network Scurity
To buy the course click
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if you have any query email us at
[email protected]
Sample Notes : https://goo.gl/Ze1FpX
or Fill the form we will contact you
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Cryptography and System Security Index
Lecture 1 Introduction to Cryptography and Security System
Lecture 2 Security Goals and Mechanism
Lecture 3 Symmetric Cipher
Lecture 4 Substitution Cipher
Lecture 5 Transposition Cipher
Lecture 6 Stream and Block Cipher
Lecture 7 Mono Alphabetic Cipher
Lecture 8 Poly Alphabetic Cipher
Lecture 9 Diffie Hellman
Lecture 10 RSA Algorithm with Solved Example
Lecture 11 IDEA Algorithm Full Working
Lecture 12 SHA-1 Algorithm Full Working
Lecture 13 Blowfish Algorithm Full working
Lecture 14 DES Algorithm Full Working
Lecture 15 Confusion and Diffusion
Lecture 16 AES Algorithm Full working
Lecture 17 Kerberos
Lecture 18 Malicious Software ( Virus and worms )
Lecture 19 DOS and DDOS Attack
Lecture 20 Digital Signature Full working Explained

Views: 40264
Last moment tuitions

Get Full Course: http://www.engineeringmentor.com/CNYTv3
Networks #3: This tutorial introduces the Cryptography basics. It also explains what is Encryption and Decryption.
a) Cryptography basics (00:21):http://youtu.be/BEb_AnPWPwY?t=21s
how do we provide this security during transmission? Well, One way of ensuring security can be use of CRYPTOGRAPHY!
Cryptography is a field of network security
which deals with hiding "real" infromation
when it is under transmission between the two parties.
Usually, the real information is transformed
or hidden into another message and transmitted over the network.
This transformed message in itself will make no sense
even if any hacker gets hold of this information.
When it reaches the destination,
the receipent will know a method to de-transform
the garbage message into the original information
which the sender had sent.method of transforming message at sender's side
and de transforming at reciever's side forms the basic model of Cryptography.
b) Encryption and Decryption (3:57):http://youtu.be/BEb_AnPWPwY?t=3m57s
First, the information to be transmitted, called as plain text(or message)
is fed to an Encryption system.
The Encyrption system uses a key to convert the plain text to encyrpted form
which looks like garbage value.
This is also called as cipher text.
A corresponding key is used at the other end
to decrypt the cipher text back to original message.
When we say a key, it actually means a piece of string value
which is fed to encyprtion and decryption algorithms
along with the text for transformation.
When the message reaches the destination,
this system at the other end decrypts the cipher text into original message
with the help of the key.
This is called as Decryption System.
The output of the Decryption System is the intended message.
Depending on how the keys are shared,
we can classify crytography as symmetric and asymmetric.
If the keys used by both parties are same,
then it is called symmetric key cryptography, or private key cryptography.
If both parties use different keys for encyrption and decryption,
then it is called asymmetric key cryptography or public key cryptography.
video URL : https://www.youtube.com/watch?v=BEb_AnPWPwY
Watch ALL CN VIDEOS: https://www.youtube.com/playlist?list=PL9OIoIp8YySF4mkIihOb_j2HZIRIlYuEx
For more, visit http://www.EngineeringMentor.com
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Twitter : https://twitter.com/Engi_Mentor

Views: 108496
Skill Gurukul

Cryptography cse ppt topic for cse final year students. For more information and to download cryptography ppt visit http://paperpresentation.net/cse-ppt-topics/cryptography/16/

Views: 3968
kasarla shashank

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: 38618
AppliedGo

DATA ENCRYPTION STANDARD
By Namratha Kalasannavar
For notes, all video links, ppt, important documents, previous year question papers can visit my blog at
https://namrathakalasannavar955210856.wordpress.com

Views: 265
Namratha Kalasannavar

Link to My Blog:- http://techdjdey.blogspot.in/
Video Editor used:- HitFilm 4 Express. https://hitfilm.com/
Screen recorder used:- iSpring Free Cam 8. https://www.ispringsolutions.com/ispring-free-cam
Music:- Elektronomia-Sky High. https://www.youtube.com/watch?v=TW9d8vYrVFQ
PLEASE LIKE AND SHARE THIS VIDEO.
SUBSCRIBE to my Channel here:- https://www.youtube.com/channel/UCFKcqq9IOdwHdgfq6GEL8gw?sub_confirmation=1
My other videos:- https://www.youtube.com/channel/UCFKcqq9IOdwHdgfq6GEL8gw/videos
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Views: 2482
Dhrubajyoti Dey

-~-~~-~~~-~~-~-
Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3"
https://www.youtube.com/watch?v=GS3HKR6CV8E
-~-~~-~~~-~~-~-

Views: 102596
Well Academy

https://8gwifi.org/CipherFunctions.jsp
Reference book: http://leanpub.com/crypto
Computer Security, Cryptography Advanced Encryption Standard AES,fips 197
The Advanced Encryption Standard (AES) specifies a FIPS-approved
cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext converts the data back into its original form, called plaintext.
The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits.
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Views: 156768
Zariga Tongy

For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com

Views: 70054
Introduction to Cryptography by Christof Paar

Views: 130
MhdAsim

Views: 12160
Reema Thareja

DES Encryption, P-boxes and S-Boxes, Feistel Network

Views: 38478
Natarajan Meghanathan

Screencast of performing DES encryption using OpenSSL on Ubuntu Linux. Commands/files user: openssl, /dev/urandom, xxd. Created by Steven Gordon on 27 January 2012 at Sirindhorn International Institute of Technology, Thammasat University, Thailand.

Views: 14826
Steven Gordon

Quantum cryptography promises to revolutionize secure communication by providing security based on the fundamental laws of physics, instead of the current state of mathematical algorithms or computing technology.
#QuantumComputing #Cryptography #Computer
Visit https://www.topicsforseminar.com/2014/04/quantum-cryptography-seminar-report-and.html to Download

Views: 3848
Topics For Seminar

KnapSack Encryption Algorithm in Hindi - Types of Keys, Solved Example
#KnapSack Cryptosystem
Computer Network Security(CNS) Lectures – Internet Security

Views: 7793
Easy Engineering Classes

In this tutorial, we will learn Encryption/Decryption for AES CBC mode using PyCrypto. All links for source code, text based tutorial and further reading material will be in the description below.
Detailed Text Based Tutorial
http://www.letscodepro.com/encryption-in-python-using-pycrypto/
Gihub Source Code Link
https://github.com/the-javapocalypse/Python-File-Encryptor
Further Reading Material
http://searchsecurity.techtarget.com/definition/cipher
https://defuse.ca/cbcmodeiv.htm
https://www.di-mgt.com.au/cryptopad.html
http://www.cryptofails.com/post/70059609995/crypto-noobs-1-initialization-vectors
Please Subscribe! And like. And comment. That's what keeps me going.
Follow Me
Facebook: https://www.facebook.com/javapocalypse
Instagram: https://www.instagram.com/javapocalypse

Views: 23197
Javapocalypse

-~-~~-~~~-~~-~-
Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3"
https://www.youtube.com/watch?v=GS3HKR6CV8E
-~-~~-~~~-~~-~-

Views: 106653
Well Academy

Take the Full Course of Cryptography and Network Security
What we Provide
1) 20 Videos (Index is given down) + More Update will be Coming Before final exams
2)Hand made Notes with problems for your to practice
3)Strategy to Score Good Marks in Cryptography and Network Scurity
To buy the course click
https://goo.gl/mpbaK3
if you have any query email us at
[email protected]
Sample Notes : https://goo.gl/Ze1FpX
or Fill the form we will contact you
https://goo.gl/forms/2SO5NAhqFnjOiWvi2
Cryptography and System Security Index
Lecture 1 Introduction to Cryptography and Security System
Lecture 2 Security Goals and Mechanism
Lecture 3 Symmetric Cipher
Lecture 4 Substitution Cipher
Lecture 5 Transposition Cipher
Lecture 6 Stream and Block Cipher
Lecture 7 Mono Alphabetic Cipher
Lecture 8 Poly Alphabetic Cipher
Lecture 9 Diffie Hellman
Lecture 10 RSA Algorithm with Solved Example
Lecture 11 IDEA Algorithm Full Working
Lecture 12 SHA-1 Algorithm Full Working
Lecture 13 Blowfish Algorithm Full working
Lecture 14 DES Algorithm Full Working
Lecture 15 Confusion and Diffusion
Lecture 16 AES Algorithm Full working
Lecture 17 Kerberos
Lecture 18 Malicious Software ( Virus and worms )
Lecture 19 DOS and DDOS Attack
Lecture 20 Digital Signature Full working Explained
More videos Coming Soon.

Views: 52425
Last moment tuitions

In this video , i discussed about GTU INS UNIT 2 first part Data Encryption Standard DES
you Can find Unit PPT , related Videos and syllabus on Below Google Drive LInk
https://drive.google.com/drive/folders/0B3F0L2_uTazMbDlrU0xLci1GVjg?usp=sharing
For any Query you can mail me on
[email protected]

Views: 1587
ANKIT CHOUHAN

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: 73974
Zariga Tongy

This is the theory of Data Encryption Standard (DES) and its working mechanism.

Views: 6855
Sourav Bhattacharya

This animation is made by Mr. Enrique Zabala. This is verison 4 made for CrypTool.
This video is made for students so that they can donwload it and can learn this algorithm.

Views: 14032
HowTo

CSCI 361 Assignment 2 DES Video
Topic: Substitution Boxes (S-Box)
Video generated by Microsoft Powerpoint

Views: 5960
Jax Lee

كورس امن المعلومات وشرح خوارزمية DES مع اعطاء مثال بطريقة سهله وبسيطة
لتحميل ملف الشرح http://www.mediafire.com/file/4dbbx33v84h1a59/Microsoft+PowerPoint+-+Block+Cipher%28DES%29.pdf
لاتنسى الاشتراك فى القناة ومتابعة كل جديد فى عالم الكمبيوتر والبرمجة
https://www.youtube.com/channel/UCgg6HP9OjV5j3-deLoiOynA?view_as=subscriber

Views: 203
Code Portal

Example of key generation and encryption using simplified DES. Lecture 5 of CSS322 Security and Cryptography at Sirindhorn International Institute of Technology, Thammasat University. Given on 26 November 2013 at Bangkadi, Pathumthani, Thailand by Steven Gordon. Course material via: http://sandilands.info/sgordon/teaching

Views: 42817
Steven Gordon

In this network security video tutorial we will study the IDEA algorithm in cryptography. IDEA stands for International Data Encryption Algorithm.
IDEA algorithm theory -
1. IDEA was launched in 1990.
2. It was implemented in 1992 after underwent certain changes in names and capabilities.
3. IDEA is Quite strong, but not as popular as DES.
4. One popular email privacy technology known as Pretty Good Privacy (PGP) based on IDEA.
5. It is a Block Cipher.
6. Like DES it works on 64-bit plain text block.
7. The Key consists of 128 bits.
8. Idea is reversible like DES
9. Idea uses both diffusion and confusion for encryption
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
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For More Technology News, Latest Updates and Blog articles visit our Official Website - http://simplesnippets.tech/
#IDEAAlgorithm #IDEA #NetworkSecurity #Encryption

Views: 8700
Simple Snippets

Difference between Asymmetric Key and Symmetric Key Cryptography
Keywords:
Asymmetric Key Cryptography
Symmetric Key Cryptography
Network Security Notes

Views: 47861
Easy Engineering Classes

For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com.
The AES book chapter for this video is also available at the web site (click Sample Chapter).

Views: 186104
Introduction to Cryptography by Christof Paar

Ethical Hacking - Encryption Algorithm
watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm
Lecture By: Mr. Sharad Kumar, Tutorials Point India Private Limited

Views: 5189
Tutorials Point (India) Pvt. Ltd.

How does the RSA algorithm work? - RSA Algorithm in Cryptography,Example,Concept rsa algorithm,example ,What is a RSA key? rsa algorithm steps,rsa algorithm tutorialspoint, algorithm example with solution
rsa algorithm in c
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RSA key is a private key based on RSA algorithm. Private Key is used for authentication and a symmetric key exchange during establishment of an SSL/TLS session. It is a part of the public key infrastructure that is generally used in case of SSL certificates.
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Views: 698
CHULO

CRYPTOGRAPHIC ALGORITHMS
1.ENCRYPTION ALGORITHMS
2.AUTHENTICATION ALGORITHMS
3.DIGITAL SIGNATURE ALGORITHMS.

Views: 8705
Sundeep Saradhi Kanthety

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: 30743
nptelhrd

Views: 1010
Redbeanpaste doki

https://github.com/theex-project/A5-1-Algorithm-Project
This repository is used in Final Project of Information Security subject. Each project managed by The-ex.org
You can download the A5/1 algorithm documentation above https://www.dropbox.com/s/zb0d4nuhhefw8k5/ppt%20kemkom_fix.pptx?dl=0

Views: 1041
Hedy Pamungkas

In this video , i discussed about Introduction of INS & classical Encrytion Techniques.
Covered on the basis of GTU Syllabus
you Can find Unit PPT , related Videos and syllabus on Below Google Drive LInk
https://drive.google.com/drive/folders/0B3F0L2_uTazMM3ZiYmxLQkpISXc?usp=sharing
For any Query you can mail me on
[email protected]

Views: 3216
ANKIT CHOUHAN

Full Video Details: http://www.securitytube.net/video/79

Views: 26048
TheSecurityTube

Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption.
Download the PDF handout
http://itfreetraining.com/Handouts/Ce...
Encryption Types
Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption.
Symmetric Key
Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data.
Public Key Encryption
This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work.
Combing The Two
There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time.
The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access.
References
"Public-key cryptography" http://en.wikipedia.org/wiki/Public-k...
"Encryption" http://en.wikipedia.org/wiki/Encryption

Views: 496309
itfreetraining

For More Study Material Visit our website:
www.olevelprojects.com
www.olevelprojects.co.in
We are making the best study material for you and will deliver it as per the modern trend of NIELIT exams.
Those people who can't afford coaching classes will be directly benefited from this channel. Spread the word OLevelProjects.com , encourage us to becoming the best community there for we can deliver best education for you .
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Views: 1191
O Level Projects

This video explain you how to encrypt and image using AES in JAVA...!

Views: 21403
Thamizharasan Mohan

Information Security: Principles and Practice, 2nd edition, by Mark Stamp
Chapter 3: Symmetric Key Crypto
Section 3.2.2
stream ciphers, RC4
Class Lecture, 2011

Views: 32353
Mark Stamp

In this video I explain the fundamental concepts of cryptography. Encryption, decryption, plaintext, cipher text, and keys.
Learn Math Tutorials Bookstore http://amzn.to/1HdY8vm
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Connect one-on-one with a Math Tutor. Click the link below:
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Views: 103559
Learn Math Tutorials

In this video , i discussed about GTU INS Unit 3 i.e. Block Cipher Operation
you Can find Unit PPT on below google drive link
https://drive.google.com/drive/folders/0B3F0L2_uTazMTnRyZjdyOTFjd28?usp=sharing
For any Query you can mail me on
[email protected]
Feel Free to Share

Views: 904
ANKIT CHOUHAN

Under the guidance Dr. Wan Nor Shuhadah Binti Wan Nik
We, the UNISZA's students the Bachelor of Software Development Group A presents the simple explaination on rabbit cipher stream. Hope you enjoy!

Views: 326
An Wan

RSA Matrix Encryption Presentation

Views: 163
Jonathan Moody

In this video , i discussed about GTU INS UNIT 2 first part's with DES Animation And Example.
you can find animation on
http://kathrynneugent.com/des.html
you Can find Unit PPT, Material , related Videos and syllabus on Below Google Drive LInk
https://drive.google.com/drive/folders/0B3F0L2_uTazMbDlrU0xLci1GVjg?usp=sharing
For any Query you can mail me on
[email protected]

Views: 875
ANKIT CHOUHAN