#include "goppa.h"
#include <stdlib.h>
#include <bitpunch/math/gf2.h>
#include <bitpunch/math/perm.h>
#include <bitpunch/debugio.h>

Functions
int	BPU_goppaEncode (BPU_T_GF2_Vector out, const BPU_T_GF2_Vector in, const struct _BPU_T_Code_Ctx *ctx)
	BPU_goppaEncode Encode message using goppa code. More...

int	BPU_goppaDecode (BPU_T_GF2_Vector out, const BPU_T_GF2_Vector in, const struct _BPU_T_Code_Ctx *ctx)

int	BPU_goppaGetError (BPU_T_GF2_Vector error, const BPU_T_GF2_Vector encoded, const BPU_T_Code_Ctx *ctx)

void	BPU_goppaDetSyndrome (BPU_T_GF2_16x_Poly syndrome, const BPU_T_GF2_Vector z, const BPU_T_Code_Ctx *ctx)
	BPU_goppaDetSyndrome. More...

void	BPU_goppaFindPolyAB (BPU_T_GF2_16x_Poly a, BPU_T_GF2_16x_Poly b, const BPU_T_GF2_16x_Poly tau, const BPU_T_GF2_16x_Poly mod, const BPU_T_Math_Ctx *math_ctx)
	Find polynomials a, b of degree <= (t div 2) More...

int	BPU_goppaInitMatH2 (BPU_T_GF2_Matrix h2, BPU_T_GF2_16x_Matrix hx, const BPU_T_Code_Ctx *ctx)
	BPU_goppaInitMatH2 Initialize control matrix. More...

int	BPU_goppaGenCode (BPU_T_Code_Ctx *ctx)
	BPU_goppaGenCode Generate random code based on params. More...

Function Documentation

int BPU_goppaDecode	(	BPU_T_GF2_Vector *	out,
		const BPU_T_GF2_Vector *	in,
		const struct _BPU_T_Code_Ctx *	ctx
	)

Decode message using Patterson alg.

Parameters

encoded[in]	encoded message
decoded[out]	decoded message, allocated inside
ctx[out]	McEliece context

Returns: still 0

Definition at line 66 of file goppa.c.

void BPU_goppaDetSyndrome	(	BPU_T_GF2_16x_Poly *	syndrome,
		const BPU_T_GF2_Vector *	z,
		const BPU_T_Code_Ctx *	ctx
	)

BPU_goppaDetSyndrome.

Parameters

syndrome
z
ctx

Definition at line 163 of file goppa.c.

int BPU_goppaEncode	(	BPU_T_GF2_Vector *	out,
		const BPU_T_GF2_Vector *	in,
		const struct _BPU_T_Code_Ctx *	ctx
	)

BPU_goppaEncode Encode message using goppa code.

Parameters

out
in
ctx

Returns

Definition at line 32 of file goppa.c.

void BPU_goppaFindPolyAB	(	BPU_T_GF2_16x_Poly *	a,
		BPU_T_GF2_16x_Poly *	b,
		const BPU_T_GF2_16x_Poly *	tau,
		const BPU_T_GF2_16x_Poly *	mod,
		const BPU_T_Math_Ctx *	math_ctx
	)

Find polynomials a, b of degree <= (t div 2)

Find polynomials a, b of degree <= (t div 2). We are using GCD to find them, gcd(tau, mod) = a, so: a = tau * b + mod * (some s***s). Out a and b are allocated inside, after use must be freed using BPU_freePoly().

Parameters

tau[in]	[description]
mod[in]	[description]
a[out]	polynomial is allocated inside, must be then freed using BPU_freePoly()
b[out]	polynomial is allocated inside, must be then freed using BPU_freePoly()
math_ctx[in]	[description]

Definition at line 194 of file goppa.c.

int BPU_goppaGenCode ( BPU_T_Code_Ctx * ctx )

BPU_goppaGenCode Generate random code based on params.

Parameters

ctx

Returns

Definition at line 249 of file goppa.c.

int BPU_goppaGetError	(	BPU_T_GF2_Vector *	error,
		const BPU_T_GF2_Vector *	encoded,
		const BPU_T_Code_Ctx *	ctx
	)

Get error vector Patterson alg.

Parameters

encoded[in]	encoded message
decoded[out]	decoded message, allocated inside
ctx[out]	McEliece context

Returns: still 0

Definition at line 85 of file goppa.c.

int BPU_goppaInitMatH2	(	BPU_T_GF2_Matrix *	h2,
		BPU_T_GF2_16x_Matrix *	hx,
		const BPU_T_Code_Ctx *	ctx
	)

BPU_goppaInitMatH2 Initialize control matrix.

Parameters

h2
hx
ctx

Returns

Definition at line 206 of file goppa.c.

Functions

Function Documentation