131 lines
3.5 KiB
C#
131 lines
3.5 KiB
C#
// Transport Security Layer (TLS)
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// Copyright (c) 2003-2004 Carlos Guzman Alvarez
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// Copyright 2013-2014 Xamarin Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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namespace Mono.Security.Protocol.Tls {
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internal sealed class CipherSuiteCollection : List<CipherSuite> {
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#region Fields
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SecurityProtocolType protocol;
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#endregion
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#region Indexers
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public CipherSuite this [string name] {
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get {
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int n = IndexOf (name);
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return n == -1 ? null : this [n];
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}
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}
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public CipherSuite this [short code] {
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get {
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int n = IndexOf (code);
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return n == -1 ? null : this [n];
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}
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}
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#endregion
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#region Constructors
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public CipherSuiteCollection (SecurityProtocolType protocol)
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{
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switch (protocol) {
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case SecurityProtocolType.Default:
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case SecurityProtocolType.Tls:
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case SecurityProtocolType.Ssl3:
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this.protocol = protocol;
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break;
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case SecurityProtocolType.Ssl2:
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default:
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throw new NotSupportedException ("Unsupported security protocol type.");
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}
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}
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#endregion
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#region Methods
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public int IndexOf (string name)
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{
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int index = 0;
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foreach (CipherSuite cipherSuite in this) {
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if (String.CompareOrdinal (name, cipherSuite.Name) == 0)
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return index;
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index++;
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}
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return -1;
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}
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public int IndexOf (short code)
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{
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int index = 0;
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foreach (CipherSuite cipherSuite in this) {
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if (cipherSuite.Code == code)
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return index;
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index++;
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}
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return -1;
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}
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public void Add (
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short code, string name, CipherAlgorithmType cipherType,
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HashAlgorithmType hashType, ExchangeAlgorithmType exchangeType,
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bool exportable, bool blockMode, byte keyMaterialSize,
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byte expandedKeyMaterialSize, short effectiveKeyBytes,
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byte ivSize, byte blockSize)
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{
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switch (protocol) {
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case SecurityProtocolType.Default:
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case SecurityProtocolType.Tls:
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Add (new TlsCipherSuite (code, name, cipherType, hashType, exchangeType, exportable, blockMode,
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keyMaterialSize, expandedKeyMaterialSize, effectiveKeyBytes, ivSize, blockSize));
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break;
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case SecurityProtocolType.Ssl3:
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Add (new SslCipherSuite (code, name, cipherType, hashType, exchangeType, exportable, blockMode,
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keyMaterialSize, expandedKeyMaterialSize, effectiveKeyBytes, ivSize, blockSize));
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break;
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}
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}
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public IList<string> GetNames ()
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{
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var list = new List<string> (Count);
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foreach (CipherSuite cipherSuite in this)
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list.Add (cipherSuite.Name);
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return list;
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}
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#endregion
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}
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}
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