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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 <openssl/bn.h>
      19                 :            : #include <stdbool.h>
      20                 :            : #include <stdint.h>
      21                 :            : 
      22                 :            : #include "crypto/s2n_openssl.h"
      23                 :            : 
      24                 :            : #define RSA_PSS_SIGN_VERIFY_RANDOM_BLOB_SIZE 32
      25                 :            : #define RSA_PSS_SIGN_VERIFY_SIGNATURE_SIZE   256
      26                 :            : 
      27                 :            : /* OpenSSL 1.1.1d  10 Sep 2019 is broken, so disable on that version. For further info see: crypto/evp/p_lib.c:469
      28                 :            :  *
      29                 :            :  * This feature requires this Openssl commit for Openssl 1.1.x versions: openssl/openssl@4088b92
      30                 :            :  */
      31                 :            : #if defined(S2N_LIBCRYPTO_SUPPORTS_RSA_PSS_SIGNING) && OPENSSL_VERSION_NUMBER > 0x1010104fL
      32                 :     159623 :     #define RSA_PSS_CERTS_SUPPORTED 1
      33                 :            : #else
      34                 :            :     #define RSA_PSS_CERTS_SUPPORTED 0
      35                 :            : #endif
      36                 :            : 
      37                 :            : bool s2n_is_rsa_pss_certs_supported();
      38                 :            : bool s2n_is_rsa_pss_signing_supported();