Re: evp cipher/digest - add alternative to init-update-final interface

On 01/18/2018 02:37 AM, Peter Waltenberg wrote:
> Or just add another EVP_CIPHER_CTX_ctrl() option (EVP_CTRL_CIPHER_ONE_SHOT
> or similar.) and handle it the way CCM does now and finish the operation
> on the first data update.
> 
> That doesn't require a new API and would probably simplify some existing
> code.

Ctrls for 1-shot aead paket processing like in tls 1.2 would be the 
easiest solution for tls 1.3 pakets and i agree it could also be 
extended to the general case.

Though aead is in some sense more than a cipher mode of operation. 
Providing a dedicated api would have some advantages but i see that 
maybe i reopen a discussion:

"We are also evaluating the following new features. -New AEAD API [...]"
https://www.openssl.org/policies/roadmap.html#forthcoming

Was this already evaluated? If yes, what was the result ?
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