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       1                 :            : /*
       2                 :            :  * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
       3                 :            :  *
       4                 :            :  * Licensed under the Apache License, Version 2.0 (the "License").
       5                 :            :  * You may not use this file except in compliance with the License.
       6                 :            :  * A copy of the License is located at
       7                 :            :  *
       8                 :            :  *  http://aws.amazon.com/apache2.0
       9                 :            :  *
      10                 :            :  * or in the "license" file accompanying this file. This file is distributed
      11                 :            :  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
      12                 :            :  * express or implied. See the License for the specific language governing
      13                 :            :  * permissions and limitations under the License.
      14                 :            :  */
      15                 :            : 
      16                 :            : #pragma once
      17                 :            : 
      18                 :            : #include "crypto/s2n_pkey.h"
      19                 :            : #include "utils/s2n_result.h"
      20                 :            : 
      21                 :            : #if S2N_LIBCRYPTO_SUPPORTS_MLDSA
      22                 :            :     #define S2N_NID_MLDSA44 NID_MLDSA44
      23                 :            :     #define S2N_NID_MLDSA65 NID_MLDSA65
      24                 :            :     #define S2N_NID_MLDSA87 NID_MLDSA87
      25                 :            : #else
      26                 :        212 :     #define S2N_NID_MLDSA44 NID_undef
      27                 :        212 :     #define S2N_NID_MLDSA65 NID_undef
      28                 :        212 :     #define S2N_NID_MLDSA87 NID_undef
      29                 :            : #endif
      30                 :            : 
      31                 :            : /*
      32                 :            :  * The draft ML-DSA PKI RFC
      33                 :            :  * (https://www.ietf.org/archive/id/draft-ietf-lamps-dilithium-certificates-07.html)
      34                 :            :  * includes a very helpful table of constants related to ML-DSA in Appendix B:
      35                 :            :  * |=======+=======+=====+========+========+========|
      36                 :            :  * | Level | (k,l) | eta |  Sig.  | Public | Private|
      37                 :            :  * |       |       |     |  (B)   | Key(B) | Key(B) |
      38                 :            :  * |=======+=======+=====+========+========+========|
      39                 :            :  * |   2   | (4,4) |  2  |  2420  |  1312  |  32    |
      40                 :            :  * |   3   | (6,5) |  4  |  3309  |  1952  |  32    |
      41                 :            :  * |   5   | (8,7) |  2  |  4627  |  2592  |  32    |
      42                 :            :  * |=======+=======+=====+========+========+========|
      43                 :            :  */
      44                 :            : #define S2N_MLDSA_MAX_PUB_KEY_SIZE 2592
      45                 :            : 
      46                 :            : bool s2n_mldsa_is_supported();
      47                 :            : S2N_RESULT s2n_mldsa_init_mu_hash(struct s2n_hash_state *state, const struct s2n_pkey *pub_key);