2:31 Luke Smith before he became Luke Smooth

I have a paper due this week about aes, rsa, and blowfish and you’ve been clutch bro

If you want full understanding of the RSA cryptosystem (to the point of being able to program it), I advice reading "Introduction to Algorithms" (Cormen, Leiserson, Rivest, Stein) - the book also explains many related algorithms, like the Pollard Rho Method (generation of large, high-probability prime numbers).

You got a positive shout out from Luke Smith today

5:04 You said the size of your RSA public key is "248 bits, or 256 bytes". I think you meant 2048 bits, 2048 bits / 8 bits per byte = 256 bytes.

Please stop.

It's important to remember that you still have to be sure you got the right public key! Maybe a video on roots of trust (for websites, secure boot, …) and their alternatives (safety number in Signal, networks of trust, etc.)?

Spot on. You’d encrypt outgoing messages with the recipient’s public key You’d encrypt with your private key for signature purposes. I’m not aware of any other reasons. The whole idea with both encryption and hashing in general is that they’re easy to perform in one direction and exceedingly difficult in the other.

Excellent video, thank you so much! Like so many others, I've used certs and digital signatures for years but never taken the time to understand what's happening and this video helped me understand it better.

Honestly, this is much more understandable than AES.

I would appreciate more visual aid in these videos. In my opinion it would make the videos more understandable and it would be easier to follow what you're talking about. Btw thanks for the educational content 👍

I like to think of the public key as a Lockable padlock, those kind in lockers that you can push in the shackle and it locks, but then you need the key to unlock it. thus the private key is the key, the padlock is that public one that anyone can use to lock their parcel in a cage with, and send it to you to open it

7:30 when the rsa key is sus 😳

Yup bro a little demostration on terminal would also make this more understandable

I feel like one of my teachers will use this video in the future

While AES is somewhat robust against quantum computers, RSA would be totally broken by it.

Now normally what is used is *diffie hellman key exange* / *eliptic curve* to get a key, and with that key we use AES to encrypt the communications. RSA is used for certificates

Not sure, i thought private was to decrypt, and public to encrypt. So you can encrypt using private as well?

Thanks. Apriciate your work. Support from Italy

Finally I understand it!!! Great Thanks!

LMAO, literally watch your videos for fun. I never thought id see one of your videos when studying for classes.

Hi , if somethink is crypted with rsa its mean can is have crypto ? I have some old hard driver from 2014 and at roming where is crypto file is show rsa and 3 file system with letter and numbers

This sounds like the PGP encryption... is PGP a kind of RSA or a different algorithm that also happens to have public and private keys?

Will you do a video about SHA256 too?

3:30 I think you got it the other way around. You encrypt with your public key, and decrypt with your private key.

if the attacker got the alice public key, means attacker also can use it private key to decrypt ?

Thanks for explaining this easy!

love from india bro 🇮🇳☮️

I love your videos dude.

Bro do you even calculate the area under elliptical curve?

@ cca 5:00 I believe you meant 2048 bits and not 248 bits (cuz then you said it's 256 bytes and then it doesn't add up)

Nice. You should do elliptic curve next!

PGP (GPG) next please !! 😆

thanx, i hope you do a video about SIT encryption for IOT it would be very helpful

i like your "Works" series

So, the private and public keys are interchangeable (math-wise) before you declare that one as private and one as public - correct?

I like the reference to "Mean Girls"

These videos make the CIA very upset.

4:55 I did not know there was a limit to the amount of data that RSA can encrypt. Why? Source? I thought the problem was if you encrypted text with RSA then traditional language analysis could be used to figure out the message. Since the letters ‘E,’ T’ and spaces would always have the same corresponding cypher text letter, then a smart person could eventually figure out the pattern and deduce the message - without cracking the RSA keys. Whereas an AES key has no recognizable pattern since it looks like a random list of bits. Also, RSA encryption is significantly slower than AES. So it’s better to RSA encrypt the short AES key and then encrypt the message using the faster AES algorithm with the encrypted AES key.

Factoring primes is tough, but I think the greatest security the RSA algorithm provides isn't that. It's the incredible dullness of all known explanations of how it encrypts things.

The casual P=NP on the chalk board

Awesome! 2 likes for the video, a dislike for not including the lecture in the description. - You total is 1 like, sir, have a nice day

Very informative thanks

Je definitely recommence the video by (KZfaq) Art of the Problem named ‘Public Key cryptography: RSA Encryption Algorithm’ Definitely boils it down to the bare concept while keeping a balance between specifics and simplicity.

thank u sir i have understood :3

How can enable encryption in Archer Control Panel

can I get a video on PGP next please?

mental outlaw is the best and will change the world watch the ads to the end or u want digital garden monopolies!

i always thought rsa stood for rosallosynthetic saedric almanation process

The relationship between private and public keys remains a mystery me.

Great explanation

thanks for this video

Do you get monetized for these vids?

Very good video.

an example would have been so useful

thanks

Nice

Thanks Mental Outlaw ...

woah

diffie heilmann is so damn cool

0:30 anyone else tried to scroll up?

3:25 You have your logic reversed here in your explanation. You should have said that the public key encrypts and he private key decrypts.

Hey, have you heard about Plan 9? You might wanna check it out.

Now I understand

7:29 SUS? 😳

hai

next gpg

😁👍🏼

ayy hi

wow im early

You can encrypt my AES

RSA is on the way OUT! Watch THIS video ---> kzfaq.info/get/bejne/nq5-qciXtcysXZs.html

yeah yeah but still having the key they can still use it to decrypt it, by calculating the key, yeah i know, compute power, sure, goverment has the compute power, universities, and this is still really insecure, public and private keys my ass.

Should be noted: DO NOT USE RSA. ESPECIALLY DO NOT ROLL YOUR OWN RSA IMPLEMENTATION. A large portion of modern crypto vulnerablities today are the result of programmers with no formal background in number theory using their own RSA because its math is deceptively simple to implement. The fact is that RSA is a minefield of mistakes waiting to happen be it not padding your ciphertext, using a too small public exponent, choosing primes that are too close or using primes that aren't securely generated, sending the same or similar messages encrypted with different keys, using the same prime for two different keys, the list goes on. For asymetric encryption, it is _strongly_ adviced that you use Elliptic curves, in particular Curve25519. The parameters of which have been carefully chosen by experienced cryptographers who know what they're doing.

around 3:25 u said that people can use your public key to decrypt messages encrypted with your private key. this is not the case!

3rd

tl;dw cryptography ia hard

cool I'm early

Adi shamir by his face looks jewish.

5:00 did you mean 2048 and not 248? You casual.

Talking too much , boring and not informative