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crypto: lib/aesgcm - Add kernel docs for aesgcm_mac 

Add kernel documentation for the aesgcm_mac.
This function generates the authentication tag using the AES-GCM algorithm.

Signed-off-by: Sagar Vashnav <sagarvashnav72427@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Sagar Vashnav 2023-10-25 08:57:07 -04:00 committed by Herbert Xu
parent 03f8f3cb6e
commit 239e27a983
1 changed files with 13 additions and 0 deletions
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13
lib/crypto/aesgcm.c
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@ -73,6 +73,19 @@ static void aesgcm_ghash(be128 *ghash, const be128 *key, const void *src,
}
}
/**
* aesgcm_mac - Generates the authentication tag using AES-GCM algorithm.
* @ctx: The data structure that will hold the AES-GCM key schedule
* @src: The input source data.
* @src_len: Length of the source data.
* @assoc: Points to the associated data.
* @assoc_len: Length of the associated data values.
* @ctr: Points to the counter value.
* @authtag: The output buffer for the authentication tag.
*
* It takes in the AES-GCM context, source data, associated data, counter value,
* and an output buffer for the authentication tag.
*/
static void aesgcm_mac(const struct aesgcm_ctx *ctx, const u8 *src, int src_len,
const u8 *assoc, int assoc_len, __be32 *ctr, u8 *authtag)
{