106 lines
2.6 KiB
C#
106 lines
2.6 KiB
C#
// Transport Security Layer (TLS)
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// Copyright (c) 2003-2004 Carlos Guzman Alvarez
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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.Security.Cryptography;
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namespace Mono.Security.Protocol.Tls
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{
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internal class RSASslSignatureFormatter : AsymmetricSignatureFormatter
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{
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#region Fields
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private RSA key;
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private HashAlgorithm hash;
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#endregion
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#region Constructors
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public RSASslSignatureFormatter()
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{
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}
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public RSASslSignatureFormatter(AsymmetricAlgorithm key)
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{
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this.SetKey(key);
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}
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#endregion
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#region Methods
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public override byte[] CreateSignature(byte[] rgbHash)
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{
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if (this.key == null)
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{
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throw new CryptographicUnexpectedOperationException("The key is a null reference");
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}
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if (hash == null)
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{
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throw new CryptographicUnexpectedOperationException("The hash algorithm is a null reference.");
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}
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if (rgbHash == null)
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{
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throw new ArgumentNullException("The rgbHash parameter is a null reference.");
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}
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return Mono.Security.Cryptography.PKCS1.Sign_v15(
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this.key,
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this.hash,
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rgbHash);
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}
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public override void SetHashAlgorithm(string strName)
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{
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#if INSIDE_SYSTEM
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hash = new Mono.Security.Cryptography.MD5SHA1 ();
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#else
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switch (strName)
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{
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case "MD5SHA1":
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this.hash = new MD5SHA1();
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break;
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default:
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this.hash = HashAlgorithm.Create(strName);
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break;
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}
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#endif
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}
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public override void SetKey(AsymmetricAlgorithm key)
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{
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if (!(key is RSA))
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{
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throw new ArgumentException("Specfied key is not an RSA key");
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}
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this.key = key as RSA;
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}
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#endregion
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}
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}
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