linux-kernel - Re: [PATCH RESEND v5 6/6] crypto: AF_ALG

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Date:	Fri, 13 May 2016 16:32:35 -0700 (PDT)
From:	Mat Martineau <mathew.j.martineau@...ux.intel.com>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
cc:	dhowells@...hat.com, herbert@...dor.apana.org.au,
	smueller@...onox.de, linux-api@...r.kernel.org,
	marcel@...tmann.org, linux-kernel@...r.kernel.org,
	keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
	dwmw2@...radead.org, davem@...emloft.net
Subject: Re: [PATCH RESEND v5 6/6] crypto: AF_ALG - add support for key_id

Tadeusz -

David updated the keys-asym-keyctl branch, and this patch set won't build 
any more.

On Thu, 5 May 2016, Tadeusz Struk wrote:

> diff --git a/crypto/algif_akcipher.c b/crypto/algif_akcipher.c
> index e00793d..f486b6d 100644
> --- a/crypto/algif_akcipher.c
> +++ b/crypto/algif_akcipher.c
> +static int asym_key_encrypt(const struct key *key, struct akcipher_request *req)
...
> +	params.data_len = req->src_len;
> +	params.enc_len = req->dst_len;

The params member names have changed (now in_len and out_len).

> +	ret = encrypt_blob(&params, in, out);

The encrypt function for the key can now be called with 
params.key->type->asym_eds_op(). This also allows you to factor out the 
duplication in asym_key_encrypt, asym_key_decrypt, and asym_key_sign. See 
keyctl_pkey_e_d_s() in keyctl_pkey.c

> +static int asym_key_verify(const struct key *key, struct akcipher_request *req)
...
> +	ret = verify_signature(key, NULL, &sig);

key->type->asym_verify_signature() is available as well.

Regards,

--
Mat Martineau
Intel OTC