mono/btls/btls-key.c

   1 //
   2 //  btls-key.c
   3 //  MonoBtls
   4 //
   5 //  Created by Martin Baulig on 3/7/16.
   6 //  Copyright © 2016 Xamarin. All rights reserved.
   7 //
   8
   9 #include "btls-key.h"
  10
  11 MONO_API EVP_PKEY *
  12 mono_btls_key_new ()
  13 {
  14         return EVP_PKEY_new ();
  15 }
  16
  17 MONO_API void
  18 mono_btls_key_free (EVP_PKEY *pkey)
  19 {
  20         EVP_PKEY_free (pkey);
  21 }
  22
  23 MONO_API EVP_PKEY *
  24 mono_btls_key_up_ref (EVP_PKEY *pkey)
  25 {
  26         return EVP_PKEY_up_ref (pkey);
  27 }
  28
  29 MONO_API int
  30 mono_btls_key_get_bits (EVP_PKEY *pkey)
  31 {
  32         return EVP_PKEY_bits (pkey);
  33 }
  34
  35 MONO_API int
  36 mono_btls_key_is_rsa (EVP_PKEY *pkey)
  37 {
  38         return pkey->type == EVP_PKEY_RSA;
  39 }
  40
  41 MONO_API int
  42 mono_btls_key_assign_rsa_private_key (EVP_PKEY *pkey, uint8_t *der_data, int der_length)
  43 {
  44         RSA *rsa;
  45
  46         rsa = RSA_private_key_from_bytes (der_data, der_length);
  47         if (!rsa)
  48                 return 0;
  49
  50         return EVP_PKEY_assign_RSA (pkey, rsa);
  51 }
  52
  53 MONO_API int
  54 mono_btls_key_get_bytes (EVP_PKEY *pkey, uint8_t **buffer, int *size, int include_private_bits)
  55 {
  56         size_t len;
  57         RSA *rsa;
  58         int ret;
  59
  60         *size = 0;
  61         *buffer = NULL;
  62
  63         if (pkey->type != EVP_PKEY_RSA)
  64                 return 0;
  65
  66         rsa = EVP_PKEY_get1_RSA (pkey);
  67         if (!rsa)
  68                 return 0;
  69
  70         if (include_private_bits)
  71                 ret = RSA_private_key_to_bytes (buffer, &len, rsa);
  72         else
  73                 ret = RSA_public_key_to_bytes (buffer, &len, rsa);
  74
  75         RSA_free (rsa);
  76
  77         if (ret != 1)
  78                 return 0;
  79
  80         *size = (int)len;
  81         return 1;
  82 }