Asymmetric Part 2 - RSA includes tutorial on how to encrypt and decrypt as well as calculating the keys and euclidean algorithm.

Views: 63984
Daniel Rees

Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature.
Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016
-=[ 🔴 Stuff I use ]=-
→ Microphone:* https://amzn.to/2LW6ldx
→ Graphics tablet:* https://amzn.to/2C8djYj
→ Camera#1 for streaming:* https://amzn.to/2SJ66VM
→ Lens for streaming:* https://amzn.to/2CdG31I
→ Connect Camera#1 to PC:* https://amzn.to/2VDRhWj
→ Camera#2 for electronics:* https://amzn.to/2LWxehv
→ Lens for macro shots:* https://amzn.to/2C5tXrw
→ Keyboard:* https://amzn.to/2LZgCFD
→ Headphones:* https://amzn.to/2M2KhxW
-=[ ❤️ Support ]=-
→ per Video: https://www.patreon.com/join/liveoverflow
→ per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join
-=[ 🐕 Social ]=-
→ Twitter: https://twitter.com/LiveOverflow/
→ Website: https://liveoverflow.com/
→ Subreddit: https://www.reddit.com/r/LiveOverflow/
→ Facebook: https://www.facebook.com/LiveOverflow/
-=[ 📄 P.S. ]=-
All links with "*" are affiliate links.
LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm.
#CTF #Cryptography

Views: 42095
LiveOverflow

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: 479864
itfreetraining

A small example of using the RSA algorithm to encrypt and decrypt a message.

Views: 16217
David Metzler

(CryptoWall removal guide)
What is CryptoWall? How to decrypt encrypted files?
CryptoWall is a new variant of the ransomware CryptoLocker virus.
Crypto Wall is for the most part the same as CryptoDefense, CryptorBit and Cryptolocker other than the name change and different filenames for the ransom instructions.
When Crypto Wall is installed it will scan your computer for data files and encrypt them.
When CryptoWall is installed it will scan your computer for data files and encrypt them. It will then create files containing ransom instructions in every folder that it had encrypted a file. These ransom notes are DECRYPT_INSTRUCTION.HTML, DECRYPT_INSTRUCTION.TXT, and the DECRYPT_INSTRUCTION URL shortcut to the decryption service.
DECRYPT_INSTRUCTION:
What happened to your files ?
All of your files were protected by a strong encryption with RSA-2048 using CryptoWall.
More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem)
What does this mean ?
This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them,
it is the same thing as losing them forever, but with our help, you can restore them.
How did this happen ?
Especially for you, on our server was generated the secret key pair RSA-2048 - public and private.
All your files were encrypted with the public key, which has been transferred to your computer via the Internet.
Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server.
What do I do ?
Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed.
If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist.
...
Message presented in the CryptoWall ransom payment page:
You did not pay in time for decryption, that's why the decryption price increases 2 times. At the moment, the cost of decrypting your files is 1000 USD/EUR. In case of failure to 04/06/14 - 11:36 your key will be deleted permanently and it will be impossible to decrypt your files.
...
CryptoWall virus removal:
Reboot your computer into Safe Mode.
Delete the related file.
How do I get my files back(decrypt) without pay for CryptoWall decrypter?
Use Previous Versions to restore your files.
Watch More virus removal videos at:https://www.youtube.com/user/MrRemoveVirus

Views: 517207
Mr. RemoveVirus

#rsa #deffiehellman #cryptographylectures #lastmomenttuitions
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: 279564
Last moment tuitions

RSA being a public key crypto-system has two keys, the Public key and the Private key. The Encryption is done using one and the decryption is done using the other. Normally, the encryption is done using the Public key and the decryption is done using the Private key. The RSA modulus (explained below) length is called the key length of the cipher. The currently largest factored prime number had 768 bit. As the security of RSA depends on the factoring problem, using a modulus of 1024 bits is a bare minimum. It is recommended to use at least 2048 bits for good security. 4096 bit is pretty much unbreakable, anything beyond 4096 bits is over the top and would also be painfully slow. #selfhostwcf, #p2pnetworkprogramming,#netcorecommerce

Views: 2080
Freelance Web Developments

How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English!
🐦 Follow me on Twitter:
https://twitter.com/savjee
✏️ Check out my blog:
https://www.savjee.be
👍🏻 Like my Facebook page:
https://www.facebook.com/savjee

Views: 212407
Simply Explained - Savjee

RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity.
Link to factoring graph: http://www.khanacademy.org/labs/explorations/time-complexity

Views: 565750
Art of the Problem

RSA Algorithm is the example for Public Key Encryption algorithm.
Here we are supposed to find two keys
1) Public Key which is used at encryption
2) Private Key which is used at decryption
step 1: Select two large Primes P , Q
Step 2: Calculate n=P*Q & O(n) = (P-1)*(Q-1)
Step 3: Assume e and d (Public and Private Key).
Step 4: Encrypt the Plain Text using Public Key e.
Step 5: Decrypt the Cipher Text using Private Key d.

Views: 82038
Sundeep Saradhi Kanthety

Source Code Project http://microify.com/1Tgn
blog melardev.x10host.com
twitter http://twitter.com/melardev
blogger https://melardev.blogspot.com
instagram https://www.instagram.com/melar_dev/
Google+ https://plus.google.com/u/0/110174297675710954678

Views: 16819
Melardev

RSA Example - Calculate d in seconds
******************************************************************
CONNECT with me through following links
SUBSCRIBE NOW https://www.youtube.com/c/SRCOMPUTEREDUCATION
Facebook https://www.facebook.com/SR-Computer-Education-859020000933768/
Instagram https://www.instagram.com/shyju.raju/
******************************************************************
Description
Hello everyone , In this video I am going to discuss about RSA Example in simple way so that you can quickly solve any RSA Example easily in your examination . I am sure after watching this video of RSA Example you will get clear idea about how to solve any RSA Example very easily and quickly in your exams without making any mistakes. RSA Example is most commonly asked question in exams. Rivest Shamir and Adelman published this RSA Example. There are seven steps involved in RSA Example. I am sure you will be able to remember this seven steps of RSA Example after watching my video.
I strongly recommend you to watch my RSA Algorithm video before watching this RSA Example video.
I want to reach maximum number of students in this world and help each student to score well in their exam by watching my FREE videos on COMPUTER ENGINEERING related subjects, YOU can help me to achieve my GOAL by sharing this channel with your classmates, family members , friends and everyone you know so that they can also get help from my YouTube channel as you are getting. Thanks for watching my video.
#RSA #d #rsaencryption

Views: 11431
SR COMPUTER EDUCATION

Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! Part 1: https://youtu.be/PkpFBK3wGJc
Please consider being a supporter on Patreon! https://www.patreon.com/patrickjmt
Twitter: @Patrick_JMT
In this video I show mathematically for RSA encryption works by going through an example of sending an encrypted message!
If you are interested in seeing how Euclid's algorithm would work, check out this video by Emily Jane: https://www.youtube.com/watch?v=fz1vxq5ts5I
A big thanks to the 'Making & Science team at Google' for sponsoring this video!
Please like and share using hashtag #sciencegoals

Views: 40909
patrickJMT

Demo of RSA using OpenSSL toolkit in linux.

Views: 3500
IITB Cyber Security Workshop 2014

Views: 20205
Pakapoom Changpingnga

For more detail on back substitution go to: http://bit.ly/1W5zJ2g
Here is a link with help on relative primes: http://www.mathsisfun.com/definitions/relatively-prime.html
This is (hopefully) a very simple example of how to calculate RSA public and private keys. Just to be clear: these values should not be used for any real encryption purposes.

Views: 122964
Jenn Janesko

The video explains the RSA Algorithm (public key encryption) Concept and Example along with the steps to generate the public and private keys. The video also provides a simple example on how to calculate the keys and how to encrypt and decrypt the messages.
In this video we have discussed about how RSA Algorithm works for encryption and decryption :)
This video explains how to compute the RSA algorithm, including how to select values for d, e, n, p, q, and φ (phi).
Visit Our Channel :- https://www.youtube.com/channel/UCxik...
Follow Smit Kadvani on :-
Facebook :- https://www.facebook.com/smit.kadvani
Instagram :- https://www.instagram.com/the_smit0507
Follow Dhruvan Tanna on :-
Facebook :- https://www.facebook.com/dhruvan.tanna1
Instagram :- https://www.instagram.com/dhru1_tanna
Follow Keyur Thakkar on :-
Facebook :- https://www.facebook.com/keyur.thakka...
Instagram :- https://www.instagram.com/keyur_1982
Snapchat :- keyur1610
Follow Ankit Soni on:-
Instagram :- https://www.instagram.com/ankit_soni1511

Views: 24349
Quick Trixx

Source Code Project http://microify.com/1Tgn

Views: 3152
Melardev

CS1231 Group 20
To view the presentation only, visit http://youtu.be/Yf3k1c1YEuA?hd=1
Copyright, NUS, 2011
Some people asked about the source code for the C program we used, you can find the original version (not coded by us) here: http://cppgm.blogspot.com/2008/01/rsa-algorithm.html

Views: 27245
xkiller213

Delphi - RSA-1024 Encryption
In this episode, we will be showing you how you can generate and use RSA 1024 Keys in Delphi to encrypt text with a public key and decrypt your text with the private key.
Blog / Source code Download
http://jugoo.co.uk/2018/03/delphi-rsa-1024-encryption-example-video-lockbox3/
So we will start off with a pre-made RSA unit and the Rad studios Delphi add-on LockBox3, This will be a great example for beginners and hobbyist coders from all ages from kids to adults, with the simplified pre-made units the easy to use function can be understood by anyone.

Views: 938
WhateverTakesMyInterest

This tutorial explains how to encrypt and decrypt text using private and public key encryption, also known as asymmetric encryption.

Views: 1011
ma academy

Banks, Facebook, Twitter and Google use epic numbers - based on prime factors - to keep our Internet secrets. This is RSA public-key encryption.
More links & stuff in full description below ↓↓↓
Gold Vault: https://youtu.be/CTtf5s2HFkA
This video features Dr James Grime (http://singingbanana.com/). Message from James: "Thanks to Dr Chris Hughes of the University of York who showed me how to find the RSA public key from my browser, and showed me how awesome they look when you print them out."
Regarding the keys used for encryption:
x, y prime
Encode key E shares no factors with (x-1)(y-1)
Decode key is D with E*D - 1 a multiple of (x-1)(y-1)
Thanks to Drew Mokris for the animation: http://www.spinnerdisc.com/
NUMBERPHILE
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Subscribe: http://bit.ly/Numberphile_Sub
Videos by Brady Haran
Patreon: http://www.patreon.com/numberphile
Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/
Brady's latest videos across all channels: http://www.bradyharanblog.com/
Sign up for (occasional) emails: http://eepurl.com/YdjL9
Numberphile T-Shirts: https://teespring.com/stores/numberphile
Other merchandise: https://store.dftba.com/collections/numberphile

Views: 1033116
Numberphile

Spies used to meet in the park to exchange code words, now things have moved on - Robert Miles explains the principle of Public/Private Key Cryptography
note1: Yes, it should have been 'Obi Wan' not 'Obi One' :)
note2: The string of 'garbage' text in the two examples should have been different to illustrate more clearly that there are two different systems in use.
http://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

Views: 427956
Computerphile

The .NET Framework provides the RSACryptoServiceProvider and DSACryptoServiceProvider classes for asymmetric encryption. These classes create a public/private key pair when you use the default constructor to create a new instance. Asymmetric keys can be either stored for use in multiple sessions or generated for one session only. While the public key can be made generally available, the private key should be closely guarded.
The ExportParameters method, which returns an RSAParameters structure that holds the key information. #selfhostwcf, #p2pnetworkprogramming,#netcorecommerce

Views: 824
Freelance Web Developments

In public key encryption, two different keys are used to encrypt and decrypt data.One is the public key and other is the private key. These two keys are mathematically related. They come as a pairs.
The public key encryption is also called asymmetric key encryption because two different keys are used.
Public key algorithm is used for different purpose from private key algorithm. It is used for verification and authentication.
In this video, I will use an example to demonstrate how to use public key.
Playlist: Basic Cryptography
https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV
Advanced Cryptography:
https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7
Please leave comments, questions and
please subscribe!

Views: 33908
Sunny Classroom

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: 1263
Simple Snippets

شرح كامل للتشفير و فك التشفير وعمل المفتاح عن طريق شيفرة RSA بطريقة مبسطة مع حل مثال.
Information Security and Privacy - RSA Cipher Key Creation + Encyption + Decryption Fully Explained with Example.
- Saif Badran
iTeam Academic Group - JU
https://facebook.com/groups/iTeam.Ju

Views: 64206
iAcademy

Enroll to Full Course: https://goo.gl/liK0Oq
Networks#4: The video explains the RSA Algorithm (public key encryption) Concept and Example along with the steps to generate the public and private keys. The video also provides a simple example on how to calculate the keys and how to encrypt and decrypt the messages.
For more, visit http://www.EngineeringMentor.com.
FaceBook: https://www.facebook.com/EngineeringMentor.
Twitter: https://www.twitter.com/Engi_Mentor

Views: 164043
Skill Gurukul

Views: 112260
B Hariharan

Bob and Alice will only get you so far.
Article at https://coolaj86.com/articles/asymmetric-public--private-key-encryption-in-node-js/
Without getting deep into math, I paint a picture of specifically how RSA encryption works, it's connection with AES, and how HTTPS and GPG use both.
I also show examples using the OpenSSL commandline tools and ursa in node.js.
It's still pretty high-level, but with sprinkled with some practical details and understanding you may not have had before.
Examples with OpenSSL Node.js

Views: 6670
AJ ONeal

Views: 14776
Random Videos

Demonstration of using OpenSSL to create RSA public/private key pair, sign and encrypt messages using those keys and then decrypt and verify the received messages. Commands used: openssl. Created by Steven Gordon on 7 March 2012 at Sirindhorn International Institute of Technology, Thammasat University, Thailand.

Views: 63974
Steven Gordon

In this video you will see how to encrypt and decrypt the text information using the RSA algorithm in Java Cryptography.
For more tutorials visit: http://www.step2know.com

Views: 22481
Infinity

Namaskaar Dosto, is video mein maine aapko encryption ke baare mein bataya hai, aap sabhi ne computer aur internet use karte time Encryption aur decryption ke baare mein jarur suna hoga, usme aapko SSL encrytpion TSL Encryption, Public Key encryption, private key encryption wagereh ke baare mein bhi suna hoga, aur abhi recently whatsapp ne bhi end to end encryption launch kiya hai, toh aise mein hamare man mein bahut se sawaal hai ki aakhir yeh encryption hota kya hai? Encryption hum hamari email pe bhi use karte hai, aur hum online banking karte time bhi encryption ka use karte hai. Mujhe umeed hai ki yeh video dekhne ke baad aap encryption aur decryption ke baare mein sab kuch jaan jayenge, aur saath hi saath public key encryption ke baare mein bhi samajh jayenge. aur aap aaraam se whatsapp ke encryption feature ko bhi use kar payenge.
Win Galaxy S7, S7 Edge Here: http://bit.ly/TheMegaGiveaway
Share, Support, Subscribe!!!
Subscribe: http://bit.ly/1Wfsvt4
Youtube: http://www.youtube.com/c/TechnicalGuruji
Twitter: http://www.twitter.com/technicalguruji
Facebook: http://www.facebook.com/technicalguruji
Instagram: http://instagram.com/technicalguruji
Google Plus: https://plus.google.com/+TechnicalGuruji
About : Technical Guruji is a YouTube Channel, where you will find technological videos in Hindi, New Video is Posted Everyday :)

Views: 190698
Technical Guruji

என்கிரிப்சன் என்றால் என்ன ? தமிழ் டெக் What is Encryption, Decryption & Public Key Encryption? | Tamil Tech Explained.Like and Share this Video, Subscribe and Support us .
More Tamil Tech Explained : https://goo.gl/Wxeip0
******************************************************************
JOIN TAMIL TECH & Support us :
Website : www.TamilTechOfficial.com
YouTube : https://youtube.com/TamilTechOfficial
Facebook: https://facebook.com/TamilTechOfficial/
Twitter: https://twitter.com/TamilTechOffici
instagram : http://instagram.com/TamilTechOfficial
******************************************************************
இது போல இன்னும் பல tech வீடியோ உங்கள்ளுக்காக . SUBSCRIBE செய்யவும் .
Check Other Videos of TAMIL TECH :
FULL PLAYLIST : http://goo.gl/hKNNFX
Tamil Tech News :https://goo.gl/0leUcj
Tamil Tech Tips : https://goo.gl/nEdDeZ
VR Series : https://goo.gl/iRPZ2i
YouTuber Series : https://goo.gl/YvWnCX
Tamil Tech Top APP Series : https://goo.gl/2mnxV9
Top Smartphones : https://goo.gl/SuXYhz
Best Buy Tips : https://goo.gl/BTKvc9
My Opinions : https://goo.gl/41WgxA
Whatsapp Tips & Tricks : https://goo.gl/A1qRo4
Super Gadget Unboxing & Review : https://goo.gl/edTy52
Android TIps & Tricks : https://goo.gl/OeD4m0
Real or Fake Series : https://goo.gl/sR9EH4
Tamil Tech Super app : https://goo.gl/C7872Y
Tamil Tech Achivement : https://goo.gl/6rbl8c
Tamil Tech Live QnA :https://goo.gl/LVFhyF
Tamil Tech Prime : https://goo.gl/wSH6qD
How to Tamil : https://goo.gl/npdNGR
Tamil Tech Unboxng : https://goo.gl/KnhwJt
----------------------------------------------------------------------------------------------------
My ENGLISH TECH CHANNEL - HOWISIT :
YOUTUBE : https://www.youtube.com/c/howisitin
Facebook: https://www.facebook.com/howisit.in ,
Twitter: https://www.twitter.com/howisitin ,
Google plus: https://plus.google.com/u/howisitin,
website : http://howisit.in

Views: 53072
TAMIL TECH - தமிழ் டெக்

MIT 6.042J Mathematics for Computer Science, Spring 2015
View the complete course: http://ocw.mit.edu/6-042JS15
Instructor: Albert R. Meyer
License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu

Views: 18640
MIT OpenCourseWare

Introduce concepts of public key crypto, then a detailed example of using RSA. Course material via: http://sandilands.info/sgordon/teaching

Views: 11490
Steven Gordon

Creating an app capable of generating values of public and private keys as well as encrypting and decrypting ciphertext messages based on two prime number inputs using the foundational principles of asymmetric key RSA encryption.
Special thanks to Khan Academy for several reference points throughout the video!!!
3:26: N is NOT part of the private key.
5:11: On powerpoint: 9, 6, and 3 all share factors with 9; 8, 7, 5, 4, 2, and 1 don't share factors with 9 that are greater than 1.
10:00: Video gets a little spotty here, so in case you can't hear, she's saying "It's easy to compute D given the value of Phi N, however . . ."
By: Sofia Flynn

Views: 1546
Sofia Flynn

Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online. This educational video explains 256 bit encryption, public and private keys, SSL & TLS and HTTPS.
Learn more at http://code.org/
Help us translate into your language: http://code.org/translate/videos
Stay in touch with us!
• on Twitter https://twitter.com/codeorg
• on Facebook https://www.facebook.com/Code.org
• on Instagram https://instagram.com/codeorg
• on Tumblr https://blog.code.org
• on LinkedIn https://www.linkedin.com/company/code...
• on Google+ https://google.com/+codeorg
Help us caption & translate this video!
https://amara.org/v/HGaS/

Views: 224327
Code.org

In this video it is easily explained how to find mode
And formulaes of rsa
As well as diffie-hellman
Click here to subscribe well Academy
https://www.youtube.com/wellacademy1
Facebook Me : https://goo.gl/2zQDpD
Thank you for watching share with your friends
Follow on :
Facebook page : https://www.facebook.com/wellacademy/
Instagram page : https://instagram.com/well_academy
Twitter : https://twitter.com/well_academy
Google+ :https://plus.google.com/+WellAcademy1
rsa algorithm
rsa algorithm in network security
rsa algorithm with example
rsa algorithm explained
rsa algorithm example with solution
rsa algorithm explanation
rsa algorithm example step by step
rsa algorithm hindi,
rsa algorithm example,
rsa algorithm explanation,
diffie hellman key exchange algorithm in cryptography,
diffie hellman key exchange algorithm in english,
diffie hellman problem,
diffie hellman key exchange algorithm with example,
diffie hellman example,
diffie hellman problem example,
diffie hellman,
diffie hellman algorithm
rsa algorithm example with solution,
rsa algorithm example step by step,
rsa algorithm hindi,
rsa algorithm explained,
rsa algorithm problems,
rsa algorithm in hindi

Views: 83075
Well Academy

This video demonstrates the underlying principles of the RSA cryptosystem. It shows how the public and private asymmetric keys can be calculated from a pair of prime numbers. It also shows how to encrypt a message using the public key, and decrypt it using the private key. For ease, the calculations are performed with a spreadsheet, because the numbers involved in the process can be very large. The video points out that once a pair of asymmetric keys has been generated, the selection of which key should be made public and which key should be private, is arbitrary because RSA is a trap-door process.

Views: 148
Computer Science

The history behind public key cryptography & the Diffie-Hellman key exchange algorithm.
We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8

Views: 627362
Art of the Problem

A little NodeJS demo of making and verifing JavaScript Web Tokens (JWT) using RSA Public/Private Key Pairs
Table of Contents:
00:00 - Introduction
00:44 - 1. Get a RSA public/private PEM pair
01:41 - NPM Package for JWT
02:05 - Why this demo?
02:21 - Node - Read Keys off Disk
02:51 - Node - Specify the right algorithm
04:34 - Node - suggested option elements
04:41 - Issuer
04:48 - Subject
04:54 - Audiance
05:04 - Expires
05:40 - Signing Options
05:54 - Sign your payload with options
06:11 - Verify Options
06:37 - Node - Verify Token
06:53 - Node - Decode
07:02 - Demo
08:04 - Marker 22

Views: 9375
Stuart Williams

How To Encrypt And Decrypt Files Using Private Public Keys With OpenSSL On Ubuntu Linux.
This video tutorial will show you how to use the openssl command line to encrypt and decrypt a file using a public key. We will first generate a private key then extract the public key from this private key.
last we will encrypt a file using the public key and later use the corresponding private key to decrypt it.
🌸 Support channel & make donation :
https://www.paypal.me/aminenina/5
🌸 Subscribe for more videos :
Youtube: https://www.youtube.com/user/aminosninatos
🌸 Follow me On Social Media
Facebook : https://www.facebook.com/aminosninatos/
***********************************************************************
🌸 How To Convert Public Private Putty's ppk Keys To OpenSSH Keys On Ubuntu Linux
https://youtu.be/3aApOFQL44o
🌸 How To Use GPG Private Public Keys To Encrypt And Encrypt Files On Ubuntu Linux
https://youtu.be/I-4dcpTDWys
🌸 How To Encrypt And Decrypt Files Using Private Public Keys With OpenSSL On Ubuntu Linux
https://youtu.be/g9XN1-bANKU
🌸 How To Encrypt And Decrypt Files Using OpenSSL On Ubuntu Linux
https://youtu.be/YU1AI62khIY
🌸 How To Use MD5SUM To Verify Data Integrity On Ubuntu Linux
https://youtu.be/V1fgjXRFB2k
🌸 How To Generate Random Password From The Command Line On Ubuntu Linux
https://youtu.be/TQ4QMJWVd8U
🌸 Linux How To Crack And Recover A Password Protected Zip File
https://youtu.be/C9a6BPxUN_4
🌸 Password cracking with John the Ripper on Linux
https://youtu.be/KK2bNgX1mRA
🌸 Linux : HowTo Encrypt And Decrypt Files With A Password using GPG
https://youtu.be/a91v1bz_ZU4
🌸 How To Secure Copy Files In Linux Using SCP Command
https://youtu.be/3Y8pVDhc3RQ
🌸 How To Sync And Backup Files In Linux Using Rsync Command
https://youtu.be/aIMbg7vG6Rg
***********************************************************************

Views: 2012
Liv4IT

This is an educational video showing how to encrypt and decrypt data using openssl on windows

Views: 7017
salim awadhi

In private key encryption, data is encrypted using a single same key that only the sender and the receiver know. That is why private key encryption is also called symmetric key encryption because the same key is used during both encryption and decryption of the transmitted data.
In this video, I will also use an example to demonstrate the process of using private key encryption. Two different methods -stream encryption and block encryption- of private key algorithm are also depicted with animation.
Playlist: Basic Cryptography
https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV
Advanced Cryptography:
https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7
Please leave comments, questions and
please subscribe!

Views: 24193
Sunny Classroom

How do we exchange a secret key in the clear? Spoiler: We don't - Dr Mike Pound shows us exactly what happens.
Mathematics bit: https://youtu.be/Yjrfm_oRO0w
Computing Limit: https://youtu.be/jv2H9fp9dT8
https://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: https://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Views: 217687
Computerphile

RSA Encryption making Public & Private Keys, Encrypting a message and then decrypting the message using Python Scripts.

Views: 1387
Mark Rhodes