mecsctx.h File Reference

#include <bitpunch/config.h>
#include <bitpunch/math/gf2.h>
#include <bitpunch/code/codectx.h>

Go to the source code of this file.

Data Structures
struct	_BPU_T_Mecs_Ctx

Typedefs
typedef enum _BPU_T_EN_Mecs_Types	BPU_T_EN_Mecs_Types
	Possible types of MECS. More...
typedef struct _BPU_T_Mecs_Ctx	BPU_T_Mecs_Ctx
typedef union _BPU_T_UN_Code_Params	BPU_T_UN_Mecs_Params

Enumerations
enum	_BPU_T_EN_Mecs_Types { BPU_EN_MECS_BASIC_GOPPA = 1, BPU_EN_MECS_CCA2_POINTCHEVAL_GOPPA, BPU_EN_MECS_BASIC_QCMDPC, BPU_EN_MECS_CCA2_POINTCHEVAL_QCMDPC }
	Possible types of MECS. More...

Functions
int	BPU_mecsInitCtx (BPU_T_Mecs_Ctx **ctx, const BPU_T_UN_Mecs_Params *params, const BPU_T_EN_Mecs_Types type)
	Initialize (register) mecs functions for encryption, decryption and key gen based on type. More...
int	BPU_mecsFreeCtx (BPU_T_Mecs_Ctx **ctx)
int	BPU_mecsInitParamsGoppa (BPU_T_UN_Mecs_Params *params, const uint16_t m, const uint16_t t, const BPU_T_GF2_16x mod)
void	BPU_mecsFreeParamsGoppa (BPU_T_UN_Mecs_Params *params)
int	BPU_mecsInitParamsQcmdpc (BPU_T_UN_Mecs_Params *params, const uint16_t m, const uint16_t n0, const uint16_t w, const uint16_t t)
void	BPU_mecsFreeParamsQcmdpc (BPU_T_UN_Mecs_Params *params)

Typedef Documentation

typedef enum _BPU_T_EN_Mecs_Types BPU_T_EN_Mecs_Types

Possible types of MECS.

typedef struct _BPU_T_Mecs_Ctx BPU_T_Mecs_Ctx

typedef union _BPU_T_UN_Code_Params BPU_T_UN_Mecs_Params

Definition at line 49 of file mecsctx.h.

Enumeration Type Documentation

enum _BPU_T_EN_Mecs_Types

Possible types of MECS.

Enumerator
BPU_EN_MECS_BASIC_GOPPA	basic mecs, without any conversion
BPU_EN_MECS_CCA2_POINTCHEVAL_GOPPA	adapted Pointcheval's cca2 conversion
BPU_EN_MECS_BASIC_QCMDPC	basic qc-mdpc mecs, without any conversion
BPU_EN_MECS_CCA2_POINTCHEVAL_QCMDPC	adapted Pointcheval's cca2 conversion for qcmdpc

Definition at line 27 of file mecsctx.h.

Function Documentation

int BPU_mecsFreeCtx

(

BPU_T_Mecs_Ctx **

ctx

)

Definition at line 158 of file mecsctx.c.

void BPU_mecsFreeParamsGoppa

(

BPU_T_UN_Mecs_Params *

params

)

Definition at line 196 of file mecsctx.c.

void BPU_mecsFreeParamsQcmdpc

(

BPU_T_UN_Mecs_Params *

params

)

Free memory for params.

Parameters

params

pointer to structure

Definition at line 204 of file mecsctx.c.

int BPU_mecsInitCtx	(	BPU_T_Mecs_Ctx **	ctx,
		const BPU_T_UN_Mecs_Params *	params,
		const BPU_T_EN_Mecs_Types	type
	)

Initialize (register) mecs functions for encryption, decryption and key gen based on type.

Definition at line 37 of file mecsctx.c.

int BPU_mecsInitParamsGoppa	(	BPU_T_UN_Mecs_Params *	params,
		const uint16_t	m,
		const uint16_t	t,
		const BPU_T_GF2_16x	mod
	)

Definition at line 192 of file mecsctx.c.

int BPU_mecsInitParamsQcmdpc	(	BPU_T_UN_Mecs_Params *	params,
		const uint16_t	m,
		const uint16_t	n0,
		const uint16_t	w,
		const uint16_t	t
	)

Wrapper for param initialization. After work you have to free memory using call BPU_mecsFreeParamsQcmdpc

Parameters

params	pointer to structure
m	size of cyclic matrix
n0	number of cyclic matrices
w	weight of parity-check matrix row
t	count of errors

Returns

[description]

Definition at line 200 of file mecsctx.c.