/dct/ - Daily Cryptography Thread

>>61071159
the cheapest and most versatile one
pads
no
yes

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93KB, 1280x720px

>>61071167
>the cheapest
As in performance? Because all of them are free.

>>61071167
>pads
How do you do the key exchange?
How about a MAC? OTP is quite malleable.

>>61071159
>OpenPGP
I plan to soon. Is there a good tutorial?

>>61071299
Using gpg for ssh auth: https://incenp.org/notes/2015/gnupg-for-ssh-authentication.html
Creating a keypair and other things (I have not used these tutorials but many have suggested them): https://futureboy.us/pgp.html and https://alexcabal.com/creating-the-perfect-gpg-keypair/
In general:
Try to use 3kib+ keys with dsa/rsa
If you want to use ECC crypto pass --expert and --full-gen-key and then select curve25519 from the options
Create different subkeys for signing, authentication and encryption

>>61071331
Also https://www.gnupg.org/documentation/howtos.html

>>61071331
I think I heard you can also use these with passwords to login to place? Like a master password?

Is that possible or I understood them wrong?

Maybe something like, storing your passwords in a file instead of a physical page?

>>61071342
You can encrypt your private keys with passwords if you want, gpg will ask you about it when you are creating a key. You still need to have your private keys with you however, you can't just use passwords as replacements.

bumpu pantsu

How many of you have done these?

https://cryptopals.com/