portable_aes128gcm.cpp File Reference

AES-128-GCM and the AES-128 block in software - the backend for a target with no accelerated AEAD. More...

#include "board_drivers/board_profiles/pc_platform.h"
#include "crypto/aead/aes128gcm.h"
#include "crypto/cipher/aes_block.h"
#include "crypto/crypto_opt.h"
#include "crypto/crypto_scratch.h"
#include "crypto/mac/ghash.h"
#include "protocore_config.h"
#include "server/mmgr/secure.h"
#include <string.h>

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Detailed Description

AES-128-GCM and the AES-128 block in software - the backend for a target with no accelerated AEAD.

Software AES-128 plus a 4-bit-table GHASH. Selected explicitly by a vendor profile that sets PC_HAS_HW_AESGCM 0; never a fallback. There is no weak symbol anywhere in the chain, so linking no backend is an undefined reference and linking two is a duplicate definition.

The context is keyed: the AES schedule, H and the GHASH table are built once per key. Only J0 and the counter are per record.

Definition in file portable_aes128gcm.cpp.