That helps a lot, thanks.
On Sat, Mar 16, 2019 at 8:05 AM Nicola wrote:
>
> Well, they just don't have their individual type either: they are just
> `EVP_PKEY`s, with `EVP_PKEY` being the top level API in libcrypto for
> public key cryptography.
> The difference with `RSA_KEY`, `DSA_KEY`, `EC_KEY
Well, they just don't have their individual type either: they are just
`EVP_PKEY`s, with `EVP_PKEY` being the top level API in libcrypto for
public key cryptography.
The difference with `RSA_KEY`, `DSA_KEY`, `EC_KEY` (that can be
encapsulated in a generic `EVP_PKEY` object) is that Ed* keys don't
s
That helps a lot, I can see why they are different enough from EC key
types to be distinct.
It still leaves me wondering whe two edwards curves have key types
distinct from each other? Why aren't they both EVP_PKEY_ED? (or
something of the like)
Cheers,
Sam
It depends on the way they are defined: Ed25519 and Ed448 are
standardized as twisted edward curves, while traditional curves in the
EC module are defined in short weirstrass form.
The set of parameters describing the curves and their equation form
are different:
- for Edwards curves you have an e
Maybe because EVP_PKEY_EC designates an ECDSA key, that an EdDSA key is not
generated the same way (particularly the public part), and that the encodings
are different?
Cordialement,
Erwann Abalea
Le 15/03/2019 19:20, « openssl-users au nom de Sam Roberts »
a écrit :
It seems like they
It seems like they are EC keys, with specific curve designs, and that
also have some algorithms designed specifically for them, like EdDSA
-- though it looks like that alg is being generalized to other curve
types (https://tools.ietf.org/html/rfc8032#ref-EDDSA2).
What about them makes it necessary
