cx_mldsa_smallpoly.h

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 *   (c) 2026 Ledger SAS.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
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#ifndef CX_MLDSA_SMALLPOLY_H
#define CX_MLDSA_SMALLPOLY_H
 
#ifdef HAVE_MLDSA_OPTIMIZATION
 
#include <stdint.h>
#include "lcx_mldsa.h"
#include "cx_mldsa_poly.h"
 
#define MLDSA_SMALL_Q    3329
#define MLDSA_SMALL_QINV (-3327)
 
typedef struct {
    int16_t coeffs[MLDSA_N];
} mldsa_smallpoly;
 
void MLDSA_SMALLPOLY_ntt(int16_t r[MLDSA_N]);
 
void MLDSA_SMALLPOLY_invntt_tomont(int16_t r[MLDSA_N]);
 
void MLDSA_SMALLPOLY_ntt_copy(mldsa_smallpoly *out, const mldsa_poly *in);
 
void MLDSA_SMALLPOLY_basemul_invntt(mldsa_poly            *r,
                                    const mldsa_smallpoly *a,
                                    const mldsa_smallpoly *b);
 
void MLDSA_SMALLPOLY_unpack_eta(mldsa_smallpoly *r, const uint8_t *a, uint8_t eta);
 
#endif /* HAVE_MLDSA_OPTIMIZATION */
#endif /* CX_MLDSA_SMALLPOLY_H */