linux-kernel - Re: [PATCH 1/2] crypto: gcm - helper functions for assoclen/authsize check

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Message-ID: <VI1PR0402MB34853F503F9FA2B4F64AEEB098C00@VI1PR0402MB3485.eurprd04.prod.outlook.com>
Date:   Fri, 26 Jul 2019 14:12:04 +0000
From:   Horia Geanta <horia.geanta@....com>
To:     Iuliana Prodan <iuliana.prodan@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>
CC:     "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH 1/2] crypto: gcm - helper functions for assoclen/authsize
 check

On 7/25/2019 4:47 PM, Iuliana Prodan wrote:
> Added inline helper functions to check authsize and assoclen for
> gcm and rfc4106.
Also rfc4543.

> diff --git a/include/crypto/gcm.h b/include/crypto/gcm.h
> index c50e057..9834b97 100644
> --- a/include/crypto/gcm.h
> +++ b/include/crypto/gcm.h
> @@ -5,4 +5,57 @@
>  #define GCM_RFC4106_IV_SIZE 8
>  #define GCM_RFC4543_IV_SIZE 8
>  
> +/*
> + * validate authentication tag for GCM
> + */
> +static inline int check_gcm_authsize(unsigned int authsize)
I'd prefix the helper names with crypto_

Horia