Encryption

>>7690487
An analogy*

>>7690487
There is LITERALLY a cryptology thread you could post this in
>>7690323

The public key is used to encrypt a message.
Only the private key in that public/private key pair can decrypt messages encrypted with its public key.

You and Lucy would each have your own keypair and keep your private keys secret. You would each use the other's public key to encrypt messages and use your own private key to decrypt messages sent to you.

>>7690492

Thanks, that thread is interesting!

>>7690487

read a book on it

http://4chan-science.wikia.com/wiki/Computer_Science_and_Engineering#Computer_Security_and_Cryptography

Diffie-Hellman and the discrete logarithm?

I don't have time to go into how or why this works (that would take hours). But just do some reading on discrete logarithms, quadratic reciprocity, and really anything else tangentially related.

File: 1448878746043.gif (2MB, 550x432px) Image search: [Google]

2MB, 550x432px

>>7690487
Saw this in another thread op

Thanks to whoever answered the RSA question I had in the other thread, but I have another one now :
If I understood correctly, https uses RSA in some way, so does your browser check the security key of a website you access the first time you visit it, and warn you if it isn't the same one the next time ?
Some guy told me that you receive RSA public keys from a special authority throught RSA too, is it true ? If so, is there the same issue as before if it's the first time you make contact with the authority ?

Hopeful bump

Hopeless bump