_ Git - BoarSSL/blob - SSLTLS/KeyUsage.cs

   1 /*
   2  * Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 using System;
  26
  27 namespace SSLTLS {
  28
  29 /*
  30  * Symbolic constants for acceptable usages of a public key:
  31  *
  32  *   EncryptOnly      public key may be used for asymmetric encryption or
  33  *                    key exchange (TLS_RSA_* and TLS_ECDH_*), but not for
  34  *                    signatures
  35  *
  36  *   SignOnly         public key may be used for signatures only
  37  *                    (TLS_ECDHE_*), but not for asymmetric encryption or
  38  *                    key exchange
  39  *
  40  *   EncryptAndSign   public key may be used for asymmetric encryption,
  41  *                    key exchange and signatures
  42  */
  43
  44 public enum KeyUsage {
  45         EncryptOnly,
  46         SignOnly,
  47         EncryptAndSign
  48 }
  49
  50 }