Re: [design question] Symmetric cipher interface.

[Nagaev Boris <bnagaev@...>]

On Thu, Aug 17, 2017 at 1:59 PM, Sean Conner <sean@conman.org> wrote:
> It was thus said that the Great Martin once stated:
>> In continuation of Dirk's Laurie proposal for standard interface for
>> common things...
>>
>> How do you see generic interface for symmetric encryption/decryption?
>>
>> Usually you can process input stream by parts (in case you wish to
>> encrypt 50GiB file which unlikely fit into string). Do you prefer
>> some functions encrypt()/decrypt() which returns output and inner
>> state, or object that holds inner state itself?
>
>   I prefer an object that holds inner state.  Tht way, I can have several
> streams of input/output being encrypted/decrypted (say for a network
> daemon).
>
>   -spc
>

I like the way the symmetric cryptography primitives are abstracted in Go:

Block cipher: https://golang.org/pkg/crypto/cipher/#Block
Authenticated encryption with associated data:
https://golang.org/pkg/crypto/cipher/#AEAD

-- 
Best regards,
Boris Nagaev