lc_ascon_lightweight.h File Reference

#include "lc_ascon_aead.h"
#include "lc_ascon_hash.h"

Include dependency graph for lc_ascon_lightweight.h:

Go to the source code of this file.

Macros
#define	LC_AL_CTX_ON_STACK(name, hash)
	Allocate stack memory for the Ascon lightweight cryptor context.

Functions
int	lc_al_alloc (const struct lc_hash *hash, struct lc_aead_ctx **ctx)
	Allocate Ascon Lightweight cryptor context on heap.

Macro Definition Documentation

LC_AL_CTX_ON_STACK

#define LC_AL_CTX_ON_STACK	(		name,
			hash )

Value:

        _Pragma("GCC diagnostic push")                                              \
                _Pragma("GCC diagnostic ignored \"-Wvla\"") _Pragma(                \
                        "GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
                        LC_ALIGNED_BUFFER(name##_ctx_buf,                           \
                                          LC_AL_CTX_SIZE(hash),                     \
                                          LC_ASCON_ALIGNMENT);                      \
        struct lc_aead_ctx *name = (struct lc_aead_ctx *)name##_ctx_buf;            \
        LC_ASCON_SET_CTX(name, hash);                                               \
        struct lc_ascon_cryptor *__name_ascon_crypto = name->aead_state;            \
        __name_ascon_crypto->statesize = LC_ASCON_HASH_STATE_SIZE;                  \
        __name_ascon_crypto->taglen = 16;                                           \
        _Pragma("GCC diagnostic pop")

Allocate stack memory for the Ascon lightweight cryptor context.

NOTE: This is defined for lc_ascon_128* as of now.

Parameters

[in]	name	Name of the stack variable
[in]	hash	Hash implementation of type struct hash used for the Ascon lightweight algorithm

Definition at line 59 of file lc_ascon_lightweight.h.

Function Documentation

lc_al_alloc()

int lc_al_alloc	(	const struct lc_hash *	hash,
		struct lc_aead_ctx **	ctx )

Allocate Ascon Lightweight cryptor context on heap.

NOTE: This is defined for lc_ascon_128*.

Parameters

[in]	hash	Hash implementation of type struct hash used for the Ascon-Keccak algorithm
[out]	ctx	Allocated Ascon lightweight cryptor context

Returns

0 on success, < 0 on error