linux-kernel - Re: [PATCH RFC 1/2] crypto: add PKE API

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Date:	Fri, 01 May 2015 17:04:00 +0100
From:	David Howells <dhowells@...hat.com>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
Cc:	dhowells@...hat.com, herbert@...dor.apana.org.au, corbet@....net,
	keescook@...omium.org, qat-linux@...el.com, jwboyer@...hat.com,
	richard@....at, d.kasatkin@...sung.com,
	linux-kernel@...r.kernel.org, steved@...hat.com, vgoyal@...hat.com,
	james.l.morris@...cle.com, jkosina@...e.cz,
	zohar@...ux.vnet.ibm.com, davem@...emloft.net,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH RFC 1/2] crypto: add PKE API

Tadeusz Struk <tadeusz.struk@...el.com> wrote:

> +config CRYPTO_PKE

I would prefer CRYPTO_PKEY and pkey rather than pke generally and algo rather
than alg where possible - this will have more consistency with what we have
now.

I understand, however, that in core crypto code, 'alg' is used.

+	seq_printf(m, "can encrypt  : %s\n", cap & PKEY_CAN_ENCRYPT ?
+		   "yes" : "no");

Please split the line after the comma.

>  #define CRYPTO_ALG_TYPE_AHASH		0x0000000a
> +#define CRYPTO_ALG_TYPE_PKE		0x0000000b
>  #define CRYPTO_ALG_TYPE_RNG		0x0000000c

Will filling a hole cause a problem with something that got obsoleted?

> +struct pke_request {
> +	struct crypto_async_request base;
> +	const struct public_key *pk;
> +	const struct public_key_signature *pks;
> +};

I recommend:

	pk -> key or pkey
	pks -> sig or signature

> +	u8 pub_mpis;	/* Number of MPIs in public key */
> +	u8 sec_mpis;	/* Number of MPIs in secret key */
> +	u8 sig_mpis;	/* Number of MPIs in a signature */

Keep member names as:

	u8		n_pub_mpi;	/* Number of MPIs in public key */
	u8		n_sec_mpi;	/* Number of MPIs in secret key */
	u8		n_sig_mpi;	/* Number of MPIs in a signature */

please.

David
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