cx_mldsa_polymat.h File Reference

#include "cx_mldsa_polyvec.h"
#include "lcx_mldsa.h"

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Functions
void	MLDSA_POLYMAT_expand (mldsa_polyvecl *mat, const uint8_t rho[MLDSA_SEEDBYTES], const MLDSA_param_info_t *p)
	Expand the k x l matrix A from a seed rho using SHAKE128. Each polynomial A[i][j] is stored as mat[i].vec[j].
void	MLDSA_POLYMAT_pointwise_montgomery (mldsa_polyveck *t, const mldsa_polyvecl *mat, const mldsa_polyvecl *s, const MLDSA_param_info_t *p)
	Matrix-vector multiply: t = A * s (in NTT domain). Both A and s must already be in NTT domain. t is computed and left in NTT domain.
void	MLDSA_POLYMAT_expand_and_multiply (mldsa_polyveck *t, const uint8_t rho[MLDSA_SEEDBYTES], const mldsa_polyvecl *s, const MLDSA_param_info_t *p)
	On-the-fly A expansion with matrix-vector multiply.

Function Documentation

MLDSA_POLYMAT_expand()

void MLDSA_POLYMAT_expand	(	mldsa_polyvecl *	mat,
		const uint8_t	rho[MLDSA_SEEDBYTES],
		const MLDSA_param_info_t *	p
	)

Expand the k x l matrix A from a seed rho using SHAKE128. Each polynomial A[i][j] is stored as mat[i].vec[j].

Parameters

[out]	mat	Array of k polyvecl rows.
[in]	rho	Seed of MLDSA_SEEDBYTES bytes.
[in]	p	Parameter info.

Definition at line 24 of file cx_mldsa_polymat.c.

MLDSA_POLYMAT_expand_and_multiply()

void MLDSA_POLYMAT_expand_and_multiply	(	mldsa_polyveck *	t,
		const uint8_t	rho[MLDSA_SEEDBYTES],
		const mldsa_polyvecl *	s,
		const MLDSA_param_info_t *	p
	)

On-the-fly A expansion with matrix-vector multiply.

     Expands A one element at a time and accumulates A*s
     without ever storing the full matrix.  Only a single
     polynomial is kept on the callee stack.

Parameters

[out]	t	Output K-vector (NTT domain).
[in]	rho	Seed of MLDSA_SEEDBYTES bytes.
[in]	s	Input L-vector (must be in NTT domain).
[in]	p	Parameter info.

Definition at line 46 of file cx_mldsa_polymat.c.

MLDSA_POLYMAT_pointwise_montgomery()

void MLDSA_POLYMAT_pointwise_montgomery	(	mldsa_polyveck *	t,
		const mldsa_polyvecl *	mat,
		const mldsa_polyvecl *	s,
		const MLDSA_param_info_t *	p
	)

Matrix-vector multiply: t = A * s (in NTT domain). Both A and s must already be in NTT domain. t is computed and left in NTT domain.

Parameters

[out]	t	Output K-vector (NTT domain).
[in]	mat	Matrix as array of k polyvecl rows (NTT domain).
[in]	s	Input L-vector (NTT domain).
[in]	p	Parameter info.

Definition at line 36 of file cx_mldsa_polymat.c.