126 lines
3.8 KiB
C#
126 lines
3.8 KiB
C#
//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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using System;
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namespace System.IdentityModel.Tokens
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{
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/// <summary>
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/// This class defines the encrypting credentials which can be used to
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/// encrypt the proof key. It is very similar to SigningCredentials class defined
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/// in System.IdentityModel.dll
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/// </summary>
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public class EncryptingCredentials
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{
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string _algorithm;
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SecurityKey _key;
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SecurityKeyIdentifier _keyIdentifier;
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/// <summary>
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/// Constructor for easy subclassing.
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/// </summary>
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public EncryptingCredentials()
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{
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}
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/// <summary>
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/// Constructs an EncryptingCredentials with a security key, a security key identifier and
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/// the encryption algorithm.
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/// </summary>
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/// <param name="key">A security key for encryption.</param>
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/// <param name="keyIdentifier">A security key identifier for the encryption key.</param>
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/// <param name="algorithm">The encryption algorithm.</param>
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/// <exception cref="ArgumentNullException">When key is null.</exception>
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/// <exception cref="ArgumentNullException">When key identifier is null.</exception>
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/// <exception cref="ArgumentNullException">When algorithm is null.</exception>
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public EncryptingCredentials(SecurityKey key, SecurityKeyIdentifier keyIdentifier, string algorithm)
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{
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if (key == null)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("key");
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}
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if (keyIdentifier == null)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("keyIdentifier");
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}
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if (string.IsNullOrEmpty(algorithm))
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{
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throw DiagnosticUtility.ThrowHelperArgumentNullOrEmptyString("algorithm");
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}
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//
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// It is possible that keyIdentifier is pointing to a token which
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// is not capable of doing the given algorithm, we have no way verify
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// that at this level.
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//
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_algorithm = algorithm;
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_key = key;
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_keyIdentifier = keyIdentifier;
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}
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/// <summary>
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/// Gets or sets the encryption algorithm.
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/// </summary>
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public string Algorithm
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{
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get
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{
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return _algorithm;
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}
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set
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{
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if (string.IsNullOrEmpty(value))
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{
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throw DiagnosticUtility.ThrowHelperArgumentNullOrEmptyString("value");
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}
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_algorithm = value;
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}
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}
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/// <summary>
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/// Gets or sets the encryption key material.
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/// </summary>
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public SecurityKey SecurityKey
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{
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get
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{
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return _key;
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}
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set
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{
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if (value == null)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
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}
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_key = value;
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}
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}
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/// <summary>
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/// Gets or sets the SecurityKeyIdentifier that identifies the encrypting credential.
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/// </summary>
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public SecurityKeyIdentifier SecurityKeyIdentifier
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{
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get
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{
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return _keyIdentifier;
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}
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set
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{
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if (value == null)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
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}
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_keyIdentifier = value;
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}
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}
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}
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}
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