cx_mldsa_internal.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.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
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 *****************************************************************************/
#ifndef CX_MLDSA_INTERNAL_H
#define CX_MLDSA_INTERNAL_H
 
#include "lcx_mldsa.h"
 
typedef struct MLDSA_formatted_message_s {
    uint8_t prefix[2U + 255U + MLDSA_PREHASH_OID_LEN]; 
    size_t         prefix_len;                         
    const uint8_t *payload;                            
    size_t         payload_len ;
} MLDSA_formatted_message_t;
 
cx_err_t MLDSA_internal_sign_core(uint8_t                         *sig,
                                  size_t                           sig_len,
                                  size_t                          *sig_actual_len,
                                  const MLDSA_formatted_message_t *formatted_mprime,
                                  const uint8_t                   *precomputed_mu,
                                  uint8_t                         *rnd,
                                  size_t                           rnd_len,
                                  const uint8_t                   *sk,
                                  size_t                           sk_len,
                                  MLDSA_param_t                    param);
 
cx_err_t MLDSA_internal_verify_core(const uint8_t                   *sig,
                                    size_t                           sig_len,
                                    const MLDSA_formatted_message_t *formatted_mprime,
                                    const uint8_t                   *precomputed_mu,
                                    const uint8_t                   *pk,
                                    size_t                           pk_len,
                                    MLDSA_param_t                    param);
 
cx_err_t MLDSA_internal_keygen(uint8_t      *pk,
                               size_t        pk_len,
                               uint8_t      *sk,
                               size_t        sk_len,
                               const uint8_t seed[MLDSA_SEEDBYTES],
                               MLDSA_param_t param);
 
cx_err_t MLDSA_internal_sign(uint8_t       *sig,
                             size_t         sig_len,
                             size_t        *sig_actual_len,
                             const uint8_t *mu,
                             uint8_t       *rnd,
                             size_t         rnd_len,
                             const uint8_t *sk,
                             size_t         sk_len,
                             MLDSA_param_t  param);
 
cx_err_t MLDSA_internal_verify(const uint8_t *sig,
                               size_t         sig_len,
                               const uint8_t *mu,
                               const uint8_t *pk,
                               size_t         pk_len,
                               MLDSA_param_t  param);
 
#endif /* CX_MLDSA_INTERNAL_H */