lib/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-07-28 00:21:48 +03:00
Code Activity

Split mbedtls_gcm_update_ad out of mbedtls_gcm_starts

Browse Source 
The GCM interface now has separate functions to start the operation
and to pass the associated data.

This is in preparation for allowing the associated data to be passed
in chunks with repeatated calls to mbedtls_gcm_update_ad().

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2021-04-15 18:32:23 +02:00
parent a56c448636
commit 295fc13ef3
5 changed files with 83 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
library/cipher.c
View File

@ -415,6 +415,15 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
}
#endif
#if defined(MBEDTLS_GCM_C)
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
{
return( mbedtls_gcm_starts( (mbedtls_gcm_context *) ctx->cipher_ctx,
ctx->operation,
iv, iv_len ) );
}
#endif
if ( actual_iv_size != 0 )
{
memcpy( ctx->iv, iv, actual_iv_size );
@ -466,8 +475,8 @@ int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
#if defined(MBEDTLS_GCM_C)
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
{
return( mbedtls_gcm_starts( (mbedtls_gcm_context *) ctx->cipher_ctx, ctx->operation,
ctx->iv, ctx->iv_size, ad, ad_len ) );
return( mbedtls_gcm_update_ad( (mbedtls_gcm_context *) ctx->cipher_ctx,
ad, ad_len ) );
}
#endif