HMAC vs digital signature

[@davidoram4785]

Thank you Jan

[@funkykong9001]

Excellent description! Thank you! Looking forward to more cryptography videos from you

[@jgoebel]

thx 👍

[@AhmedSaber-ro4fw]

hey, Jan i following you from Egypt keep going ♥

[@jgoebel]

thx Ahmed!

[@charan_75]

wow, very well explained.

[@jgoebel]

Glad it was helpful!

[@Finn-jp6pn]

Hey, Jan. Thanks for the video. Not sure why KZbin say 'no videos' under the videos tab of your channel.

[@jgoebel]

Hi JD, strange, if I click on the channel I see all videos. I could not reproduce this

[@Finn-jp6pn]

@@jgoebel Oh. Might be a glitch 👍

[@sabertifa4176]

Thanks Jan, this video explains a lot to me about the http message signature that i was working on. But to my surprise, i try to ask a few CA vendor to purchase X509 cert for this purpose and they all recommend me SSL cert. I do think SSL cert would work, but just feel kind of spending unnecessary money on it. Is the cert for this purpose called "client certificate" and do you know of any CA vendor that sell this? Many thanks.

[@jgoebel]

you do not necessarily need a CA to sign your certificate. A certificate binds indentifying information to a public key. It would also be possible to self-sign the certificate if you know the party with which you are going to communicate and if you can exchange public keys upfront If you don't know the entity you will be communicating with, then you probably need a CA.