public key - New Videos
Channel: Computerphile & Total View: 357720
Add Date: July 22, 2014, 7:59 am & Duration: 00:06:20
Likes: 8174 | Dislike: 102
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.
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
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Channel: itfreetraining & Total View: 352751
Add Date: June 18, 2013, 5:09 am & Duration: 00:06:45
Likes: 1391 | Dislike: 136
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
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 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...
Channel: Android Authority & Total View: 29797
Add Date: October 4, 2016, 6:27 am & Duration: 00:15:47
Likes: 1284 | Dislike: 22
How keys are distributed is vital to any encryption system. Find out how to do it with the Diffie–Hellman key exchange and using public-key cryptography. Find out more: https://goo.gl/qI6jxZ
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Channel: Art of the Problem & Total View: 546617
Add Date: July 30, 2012, 5:00 pm & Duration: 00:08:38
Likes: 8781 | Dislike: 83
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
Channel: SecureMetric & Total View: 51825
Add Date: July 7, 2015, 7:26 pm & Duration: 00:03:41
Likes: 332 | Dislike: 11
This video explains to you how PKI works to create a secure environment.
Channel: patrickJMT & Total View: 30053
Add Date: August 26, 2016, 4:17 pm & Duration: 00:19:13
Likes: 953 | Dislike: 25
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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!
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Channel: Simply Explained - Savjee & Total View: 43722
Add Date: October 30, 2017, 1:00 am & Duration: 00:04:40
Likes: 1655 | Dislike: 18
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!
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Channel: ABI International & Total View: 12065
Add Date: April 14, 2017, 3:53 am & Duration: 00:16:31
Likes: 134 | Dislike: 9
RSA Public Key Encryption Algorithm (cryptography). How & why it works.
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Channel: ProfChrisBishop & Total View: 130897
Add Date: June 9, 2009, 1:00 am & Duration: 00:03:29
Likes: 1073 | Dislike: 8
This clip from the 2008 Royal Institution Christmas Lectures shows a simple demonstration of how two people can agree on a secret key, even though all of their communications are carried out in public. In the electronic world, secret key exchange allows computers to communicate securely, and is used, for example, when you give your credit card information to an on-line shop.
You can watch the 2008 Royal Institution Christmas Lectures in full at: http://research.microsoft.com/~cmbishop or by visiting the Royal Institution web site.
There is a dedicated web site to accompany the 2008 Christmas Lectures, with ten interactive games as well as downloadable PDF instructions for experiments which can be conducted at home or at school: http://www.rigb.org/christmaslectures08
Channel: Veet Vivarto & Total View: 184565
Add Date: September 11, 2013, 2:25 pm & Duration: 00:03:19
Likes: 1252 | Dislike: 129
Easy explanation of "public key encryption".
Instead of the usual terms of "public key" and "private key" this tutorial uses "lock" and "key".
If you want to start protecting you email:
get free Privacy Everywhere Beta,
Channel: Kiran Kuppa & Total View: 22324
Add Date: January 26, 2013, 3:50 am & Duration: 01:31:02
Likes: 80 | Dislike: 1
Channel: Code.org & Total View: 142038
Add Date: August 21, 2015, 4:45 pm & Duration: 00:06:40
Likes: 1219 | Dislike: 16
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.
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Channel: Franklyn [Litecoin] & Total View: 66122
Add Date: June 9, 2015, 11:20 am & Duration: 00:04:14
Likes: 589 | Dislike: 39
By now you have most probably already heard of the term Public & Private keys, but what exactly are they and more to the point what do they even do?
Note, 204 Tresvigintillion is the amount of time a standard desktop PC would take to crack a key - via Howseucreismypassword.net
Bloomberg Video: http://www.bloomberg.com/news/videos/b/9a33c478-516f-4fc9-8a11-0e9cb7c5b066)
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Channel: Packethacks.com & Total View: 22997
Add Date: December 9, 2016, 9:53 am & Duration: 00:18:07
Likes: 378 | Dislike: 19
+++See my latest video: Internet Security or Die+++ https://youtu.be/CzB5n6_pBfk
Learn Public Key Cryptography in just 18 Minutes - Cryptography Tutorial
In this Cryptography Tutorial, I teach you Public Key cryptography basics. Specifically I’m going to explain to you how the cryptography works, that allows you to do online shopping. We are so used to online shopping, a.k.a. e-commerce, that we take it for granted. But e-commerce would not be possible at all without public key cryptography. Not only will I explained to you the details of public-key cryptography and how that makes e-commerce possible, but I’m going to explain it in 15 minutes, and explain it without math, by using the Blackbox model.
IMHO, cryptography basics should not include math. Cryptography explained with math simply muddies the waters to those without extensive math background.
Let’s start by taking a brief look at Classic cryptography, which is been around for thousands of years. Classic cryptography is also called secret key cryptography or Symmetric cryptography.
A cipher is some sort of a mathematical algorithm that we use to scramble text. In the blackbox model the cipher itself is the blackbox into which we input plaintext and the...
Channel: Nihal Acar & Total View: 73713
Add Date: December 9, 2012, 11:34 am & Duration: 00:02:18
Likes: 530 | Dislike: 64
A common craft video I made for my ITGS lesson.
Channel: Sooraj Sidhu & Total View: 17257
Add Date: October 18, 2015, 5:28 pm & Duration: 00:03:59
Likes: 49 | Dislike: 8
Topic: Explain how public key encryption can be used to secure email and other communications.
Channel: Sunny Classroom & Total View: 4707
Add Date: June 28, 2017, 8:59 am & Duration: 00:05:06
Likes: 76 | Dislike: 1
Public key encryption (Asymmetric key encryption)
Hello, this is Sunny. Welcome back. Today my topic is public key encryption.
In public key encryption, two different keys are used to encrypt and decrypt data. These two keys are mathematically related. One is the public key and other is the private key. They come as a pairs.
The public key encryption is also called asymmetric encryption because two different keys are used.
The public key is public to everyone, while the private key belongs only to the person who creates these two keys.
Here is an example:
Tom is sending a lovely message to Mary, and they agree to use the public key encryption to encrypt his message. Remember, public key encryption to encrypt the sender’s message starts with the receiver, Mary. Here is how it works:
First, Mary creates a pair of keys: one public key and one private key. She keeps the private key and gives the public key to Tom.
After Tom writes his message, he uses the public key to encrypt it.
When Mary gets the encrypted document, she uses the private key to decrypt it.
Remember, the public key method to encrypt the sender’s message starts with the receiver, not the sender. The...
Channel: nirmal jeyaraj & Total View: 3113
Add Date: August 2, 2016, 2:03 am & Duration: 00:05:29
Likes: 44 | Dislike: 1
Asymmetric or public key cryptography
Channel: Technical Guruji & Total View: 110557
Add Date: April 7, 2016, 2:08 am & Duration: 00:06:25
Likes: 3414 | Dislike: 183
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.
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Channel: Course Grinder & Total View: 2400
Add Date: January 17, 2016, 3:31 pm & Duration: 00:08:26
Likes: 9 | Dislike: 1
Introduction to Public Key Cryptography
Channel: RadwanoVetch & Total View: 122131
Add Date: March 27, 2014, 11:25 am & Duration: 00:15:17
Likes: 701 | Dislike: 21
Public Key Infrastructure PKI Concepts
Channel: MIT OpenCourseWare & Total View: 9420
Add Date: September 12, 2016, 11:13 am & Duration: 00:21:45
Likes: 70 | Dislike: 6
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
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Channel: thenewboston & Total View: 102905
Add Date: August 14, 2015, 3:28 am & Duration: 00:03:54
Likes: 654 | Dislike: 10
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Channel: AKIO TV & Total View: 3011
Add Date: April 16, 2017, 1:14 am & Duration: 00:03:54
Likes: 32 | Dislike: 0
This is a basic explanation of public key encryption. Public key encryption allows for secure communication over the internet, which is why it's so extremely important these days. I hope you enjoy watching this video!!
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Channel: CodeCowboyOrg & Total View: 13077
Add Date: September 6, 2015, 9:43 am & Duration: 00:06:12
Likes: 49 | Dislike: 3
Demo of connection via SSH using the RSA Public Keys without password using the commands
1) ssh-keygen - creates the public and private keys for connection
2) ssh-keyscan - putting the host into the trusted known_hosts files
3) ssh-copy-id - command to put public key in the authorized_keys file
Channel: LiveOverflow & Total View: 21024
Add Date: April 21, 2017, 8:15 am & Duration: 00:12:42
Likes: 802 | Dislike: 6
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
Channel: Hacks And Security & Total View: 27101
Add Date: April 19, 2017, 8:58 pm & Duration: 00:19:32
Likes: 453 | Dislike: 8
symmetric vs asymmetric ( public key ) cryptography
symmetric key vs assymetric key encryption
advantages of symmetric key cryptography
advantages of assymetric cryptography
concept of digital signatures
safe and secure communication between systems
encrypted communication between systems
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Channel: Art of the Problem & Total View: 427119
Add Date: February 24, 2012, 11:44 am & Duration: 00:05:24
Likes: 5329 | Dislike: 45
This is a segment of this full video:
Diffie-Hellman key exchange was one of the earliest practical implementations of key exchange within the field of cryptography. It relies on the discrete logarithm problem. This test clip will be part of the final chapter of Gambling with Secrets!
Channel: Simon Pampena & Total View: 53520
Add Date: November 2, 2011, 1:01 am & Duration: 00:02:58
Likes: 300 | Dislike: 13
A simple explanation of how prime numbers are used in Public Key Cryptography from ABC1 science program Catalyst
Channel: Khan Academy Labs & Total View: 116347
Add Date: April 28, 2014, 1:48 pm & Duration: 00:04:32
Likes: 67 | Dislike: 4
Why do we need public key cryptography?
Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/discrete-logarithm-problem?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience
Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/the-fundamental-theorem-of-arithmetic-1?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience
Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information).
About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history,...
Channel: Ryan Riley & Total View: 4077
Add Date: February 10, 2015, 3:50 am & Duration: 00:16:50
Likes: 39 | Dislike: 0
Introduction to Basic Cryptography: Public Key Cryptography
Channel: CodeCowboyOrg & Total View: 25438
Add Date: April 26, 2016, 10:53 pm & Duration: 00:06:06
Likes: 52 | Dislike: 3
WinSCP Download - https://winscp.net/eng/download.php
Demo how to import an OpenSSH formatted Private and Public Key Pair into WinSCP for use with SSH and SFTP
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