.jam's Cryptography Tutorial - One Time Pad

One Time Pad explained by JAM

Category:

Howto & Style

Tags:

• cryptography
• cryptology
• one
• time
• pad
• jam
• tutrorial

[thechaosgladiator]

where's the concept of "oNE TIME pad here?

[JAManimations]

Once you use the Pad (Key) it becomes unsafe. If you wanted to understand the "ONE TIME" part, that's it.

[JAManimations]

oh man sorry i acidentally ... your whole comment.

[flush0t]

What you explained is a substitution cipher. Although learning letter substitution is necessary to understand the concept of OTP, it doesn't explain OTP itself.

[JAManimations]

you didn't watch until the end did you?

you substitute to add to the key, THEN you substitute BACK... that WAS OTP.

[MrKohlenstoff]

Well.. even though the video doesn't seem to be quite actual... it would probably be good if you explained why one time pads are 100% secure. ;) I don't think everyone watching this video understands the sense behind it. You might should have mentioned that Brute Force doesn't work as decrypting-method and why. Apart from that.. well.. the method gets clear, but the principle imho doesn't. So maybe some more meta-explanatations would help. :) Otherwise good work.

[JAManimations]

WOW @ BIG COMMENT!

I might make another one, but real video, i got my camera fixed

[budsmokersonly2008]

@codelyokoblue ummmm last time i checked 10 isn't a perfect square, so thank you for proving my point, and that is that you are dumb.

[codelyokoblue]

@budsmokersonly2008 Yes but with a 10-sided die you can get all 10 numbers on one die and it balances out get it? you have all the numbers so it is perfectly squared oh and don't call me dumb faggot your the dumb one

[budsmokersonly2008]

@codelyokoblue u can use any die to get random numbers, are you dumb?

[them22dayz1]

what if: Plaintext = Zoo and the Key =Zeb, what will be the Ciphertext?

[Flickchaser]

Plaintext-Mute the sound!!

[hbar45]

Lol, now all we need is a random number generator to randomly match numbers to each letter of the alphabet. Lol I just got an idea. Apply OTP to another message where the key is completely different. Risk of delivering the key has been doubled, but unbreakability has also been doubled (exponentially? hehe). I wonder if int'l intelligence agencies will look at this comment and say "LOL WTF? Nice idea tho". I'll try that...

[GMSamuelRhine]

can you message me exactly how you do this. i know how to make a system for converting text to number and how you can make a key but im not really sure how you use it together. doesnt really make much sense

[georgetroulis]

Now I need to find a way of making this encrypter in matlab! Not so easy :(

[arturo00]

No... Just no : /

Flushot is right. You didn't explain one-time-pads. You see, the most important part about OTPs is that the keyword (the "pad") needs to be at least as large as the message, it can't be re-used, and must be truly random. Neither computer "random" functions nor rolling your face against the keyboard are valid methods.

[codelyokoblue]

do you have to use 5 numbers for each letter or can it be just two?