Re: [RFC PATCH] akcipher: Introduce verify2 for public key algorithms

Vitaly Chikunov [off-list ref] wrote:

This will be hard to do since there is at least tree device that use
this interface (and who know how much out of tree):

  drivers$ git grep cra_name.*rsa
  crypto/caam/caampkc.c:          .cra_name = "rsa",
  crypto/ccp/ccp-crypto-rsa.c:            .cra_name = "rsa",
  crypto/qat/qat_common/qat_asym_algs.c:          .cra_name = "rsa",

Interface seems to be designed that verify() call is interchangeable
with encrypt().

Two verify does not seem that bad since there is common code for the old
interface that removes code duplication and simplifies driver
implementation (RSA drivers only need to implement encrypt).

You could move the comparison into core crypto code if it's makes more sense
than moving the comparison to the crypto algorithm ->verify() call.  It makes
more sense than the upper layers having to cover the differences between the
algo modules.

David