Re: [PATCH RFC v5 2/4] crypto: add PKE API

From: Herbert Xu
Date: Mon Jun 15 2015 - 20:06:10 EST


On Mon, Jun 15, 2015 at 01:18:42PM -0700, Tadeusz Struk wrote:
>
> + * @setkey: Function invokes the algorithm specific set key function, which
> + * knows how to decode and interpret the BER encoded key

We should split this into two functions: setpubkey and setprivkey.

> + *
> + * @reqsize: Request context size required by algorithm implementation
> + * @base: Common crypto API algorithm data structure
> + */
> +struct akcipher_alg {
> + int (*sign)(struct akcipher_request *req);
> + int (*verify)(struct akcipher_request *req);
> + int (*encrypt)(struct akcipher_request *req);
> + int (*decrypt)(struct akcipher_request *req);
> + int (*maxsize)(struct crypto_akcipher *tfm);

Hmm, we could actually get rid of maxsize by just having each
function check the dst_len and if it is insufficient write the
required length in it and then return an error.

Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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