I don't see the need for the red lock. Could he not just use the blue lock ? Also as O2Matthewj below comments, couldn't be intercepted and returned deceptively ?
@southwoodside Red and Green Key is the private key...nobody can see this...Red and Green Padlock is the Encryption (ex. RSA)....once both know they are secure (Certifcate both have the correct key to decrypt) then the blue key both use it to send msgs encrypted.!
Wow thanks, ive been studying the theory of key exchange for a while but didnt quite get it there was a missing piece but this video makes it so simple and now its click to how it actually works congrats...
What stopping the kids from interrupting that brief case and putting their own lock and not forward that packet to the prof. Then the kids send that briefcase back the guy who put the secret blue key in brief case. Then that key removes his lock and send it again with the delivery kids and the lock that is on the brief case is not the lock of delivery kids. They can now open the brief case and get that blue key?
Is it something to with Certificate Authority or something?
Nice, although I think it hides real complexity from kids - finding "locks" that are both associative (most are not) and do not leak information (say simple XOR with private key - associative, but trivial to break when used in this scheme).
I don't see the need for the red lock. Could he not just use the blue lock ? Also as O2Matthewj below comments, couldn't be intercepted and returned deceptively ?
southwoodside 8 months ago
@southwoodside Red and Green Key is the private key...nobody can see this...Red and Green Padlock is the Encryption (ex. RSA)....once both know they are secure (Certifcate both have the correct key to decrypt) then the blue key both use it to send msgs encrypted.!
ChoZeNOPS 2 months ago
This one was bad ass!
MadNoys1 8 months ago
Wow thanks, ive been studying the theory of key exchange for a while but didnt quite get it there was a missing piece but this video makes it so simple and now its click to how it actually works congrats...
u guys should do more videos lol
thafrostable 8 months ago
What stopping the kids from interrupting that brief case and putting their own lock and not forward that packet to the prof. Then the kids send that briefcase back the guy who put the secret blue key in brief case. Then that key removes his lock and send it again with the delivery kids and the lock that is on the brief case is not the lock of delivery kids. They can now open the brief case and get that blue key?
Is it something to with Certificate Authority or something?
02Matthewj 9 months ago
PIN DROP MOMENT! Finally I understand how public key exchanges work! Cheers guys. Also, Britain FTW.
deed02392 10 months ago
At first I was like, no way so simple it should suck, but then I was like OMFG IT'S SO GREAT!
kuteninja 1 year ago
Nice, although I think it hides real complexity from kids - finding "locks" that are both associative (most are not) and do not leak information (say simple XOR with private key - associative, but trivial to break when used in this scheme).
mentin 1 year ago
Excellent video - but if this could be explain with private key and public key combination (things we read in books)....then it could be awesome
chintandd 1 year ago
great video
vvurx 1 year ago
this was EXCELENT!! Bravo!
darksaga2006 1 year ago
I still thing they shoud be teaching modular exponent arithmetic to make things even more clearer. But the demo was excellent!!!
colinmaharaj 1 year ago
Great Video really made PKI clear.
Thanks for Posting this!
whitetiger78 1 year ago
A perfect example of ingenuous and simple explanation
ajnbin 1 year ago
That's the best explanation of key exchange that I've ever seen. Kudos!
aconaway1 1 year ago 14
Wow thank you so much! This clears all confusion i've had with Diffie Hellman.
Greatest video ever.
CarrollCanada 1 year ago
amazing,the first time i heard about diffie hellman was after graduation from engineering school
joe501ut 2 years ago
I can't believe these videos have so few views.
pct437 2 years ago
lol becuase everyone watchs them on tv but there intresting even though i know lots about computers im still getting facinated by this program!
Cheesepickles22 2 years ago