On Tue, Sep 21, 2021 at 10:40 AM Jeffrey Walton <noloa...@gmail.com> wrote:
> ...
> Typically you don't simply encrypt with an elliptic curve. Typically
> encryption using elliptic curves is a hybrid public key encryption
> scheme, like ECIES. In ECIES, you encrypt a bulk encryption key for a
> block cipher like AES under the public key. But even that is slippery
> since you don't really encrypt like with RSA. Rather, you use a key
> agreement scheme and the person doing the encryption performs half of
> the key exchange using a temporary key and the other party's public
> key. The other party with the private key performs the other half of
> the key agreement, recovers the bulk encryption key, and then uses a
> block cipher like AES to decrypt the actual message.

I don't mean to beat a dead horse, but here's what the wikipedia
article on EC says

<QUOTE>Elliptic curves are applicable for key agreement, digital
signatures, pseudo-random generators and other tasks. Indirectly, they
can be used for encryption by combining the key agreement with a
symmetric encryption scheme.</QUOTE>

So it is not just simple encryption like RSA.

> But getting back to your problem... Do you know which JSON algorithm
> you are using?

I should have restated... The algorithms are listed in RFC 7518, Section 4.1.

If you are dealing with some sort of custom scheme, do you have a link
to the specification and test vectors?


You received this message because you are subscribed to the Google Groups 
"Crypto++ Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to cryptopp-users+unsubscr...@googlegroups.com.
To view this discussion on the web visit 

Reply via email to