113 lines
3.2 KiB
C#
113 lines
3.2 KiB
C#
//
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// System.Security.Cryptography.Pkcs.ContentInfo
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//
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// Author:
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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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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#if SECURITY_DEP
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using Mono.Security;
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namespace System.Security.Cryptography.Pkcs {
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/*
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* ContentInfo ::= SEQUENCE {
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* contentType ContentType,
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* content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL
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* }
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* ContentType ::= OBJECT IDENTIFIER
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*/
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public sealed class ContentInfo {
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private Oid _oid;
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private byte[] _content;
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// constructors
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public ContentInfo (byte[] content)
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: this (new Oid ("1.2.840.113549.1.7.1"), content)
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{
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}
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public ContentInfo (Oid contentType, byte[] content)
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{
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if (contentType == null)
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throw new ArgumentNullException ("contentType");
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if (content == null)
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throw new ArgumentNullException ("content");
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_oid = contentType;
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_content = content;
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}
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~ContentInfo ()
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{
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}
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// properties
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public byte[] Content {
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get { return (byte[]) _content.Clone (); }
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}
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public Oid ContentType {
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get { return _oid; }
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}
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// static methods
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[MonoTODO ("MS is stricter than us about the content structure")]
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public static Oid GetContentType (byte[] encodedMessage)
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{
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if (encodedMessage == null)
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throw new ArgumentNullException ("algorithm");
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try {
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PKCS7.ContentInfo ci = new PKCS7.ContentInfo (encodedMessage);
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switch (ci.ContentType) {
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case PKCS7.Oid.data:
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case PKCS7.Oid.signedData: // see SignedCms class
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case PKCS7.Oid.envelopedData: // see EnvelopedCms class
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case PKCS7.Oid.digestedData:
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case PKCS7.Oid.encryptedData:
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return new Oid (ci.ContentType);
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default:
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// Note: the constructor will accept any "valid" OID (but that
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// doesn't mean it's a valid ContentType structure - ASN.1 wise).
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string msg = Locale.GetText ("Bad ASN1 - invalid OID '{0}'");
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throw new CryptographicException (String.Format (msg, ci.ContentType));
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}
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}
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catch (Exception e) {
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throw new CryptographicException (Locale.GetText ("Bad ASN1 - invalid structure"), e);
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}
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}
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}
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}
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#endif
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