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Luke Pulverenti
346
Emby.Server.Core/Cryptography/X520Attributes.cs
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346
Emby.Server.Core/Cryptography/X520Attributes.cs
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//
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// X520.cs: X.520 related stuff (attributes, RDN)
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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) 2002, 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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using System;
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using System.Text;
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namespace Emby.Server.Core.Cryptography
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{
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// References:
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// 1. Information technology - Open Systems Interconnection - The Directory: Selected attribute types
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// http://www.itu.int/rec/recommendation.asp?type=folders&lang=e&parent=T-REC-X.520
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// 2. Internet X.509 Public Key Infrastructure Certificate and CRL Profile
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// http://www.ietf.org/rfc/rfc3280.txt
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// 3. A Summary of the X.500(96) User Schema for use with LDAPv3
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// http://www.faqs.org/rfcs/rfc2256.html
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// 4. RFC 2247 - Using Domains in LDAP/X.500 Distinguished Names
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// http://www.faqs.org/rfcs/rfc2247.html
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/*
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* AttributeTypeAndValue ::= SEQUENCE {
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* type AttributeType,
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* value AttributeValue
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* }
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*
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* AttributeType ::= OBJECT IDENTIFIER
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*
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* AttributeValue ::= ANY DEFINED BY AttributeType
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*/
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public class X520 {
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public abstract class AttributeTypeAndValue {
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private string oid;
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private string attrValue;
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private int upperBound;
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private byte encoding;
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protected AttributeTypeAndValue (string oid, int upperBound)
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{
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this.oid = oid;
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this.upperBound = upperBound;
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this.encoding = 0xFF;
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}
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protected AttributeTypeAndValue (string oid, int upperBound, byte encoding)
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{
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this.oid = oid;
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this.upperBound = upperBound;
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this.encoding = encoding;
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}
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public string Value {
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get { return attrValue; }
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set {
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if ((attrValue != null) && (attrValue.Length > upperBound)) {
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string msg = ("Value length bigger than upperbound ({0}).");
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throw new FormatException (String.Format (msg, upperBound));
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}
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attrValue = value;
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}
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}
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public ASN1 ASN1 {
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get { return GetASN1 (); }
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}
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internal ASN1 GetASN1 (byte encoding)
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{
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byte encode = encoding;
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if (encode == 0xFF)
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encode = SelectBestEncoding ();
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ASN1 asn1 = new ASN1 (0x30);
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asn1.Add (ASN1Convert.FromOid (oid));
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switch (encode) {
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case 0x13:
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// PRINTABLESTRING
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asn1.Add (new ASN1 (0x13, Encoding.ASCII.GetBytes (attrValue)));
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break;
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case 0x16:
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// IA5STRING
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asn1.Add (new ASN1 (0x16, Encoding.ASCII.GetBytes (attrValue)));
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break;
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case 0x1E:
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// BMPSTRING
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asn1.Add (new ASN1 (0x1E, Encoding.BigEndianUnicode.GetBytes (attrValue)));
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break;
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}
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return asn1;
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}
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internal ASN1 GetASN1 ()
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{
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return GetASN1 (encoding);
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}
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public byte[] GetBytes (byte encoding)
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{
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return GetASN1 (encoding) .GetBytes ();
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}
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public byte[] GetBytes ()
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{
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return GetASN1 () .GetBytes ();
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}
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private byte SelectBestEncoding ()
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{
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foreach (char c in attrValue) {
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switch (c) {
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case '@':
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case '_':
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return 0x1E; // BMPSTRING
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default:
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if (c > 127)
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return 0x1E; // BMPSTRING
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break;
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}
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}
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return 0x13; // PRINTABLESTRING
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}
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}
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public class Name : AttributeTypeAndValue {
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public Name () : base ("2.5.4.41", 32768)
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{
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}
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}
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public class CommonName : AttributeTypeAndValue {
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public CommonName () : base ("2.5.4.3", 64)
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{
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}
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}
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// RFC2256, Section 5.6
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public class SerialNumber : AttributeTypeAndValue {
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// max length 64 bytes, Printable String only
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public SerialNumber ()
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: base ("2.5.4.5", 64, 0x13)
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{
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}
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}
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public class LocalityName : AttributeTypeAndValue {
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public LocalityName () : base ("2.5.4.7", 128)
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{
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}
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}
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public class StateOrProvinceName : AttributeTypeAndValue {
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public StateOrProvinceName () : base ("2.5.4.8", 128)
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{
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}
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}
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public class OrganizationName : AttributeTypeAndValue {
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public OrganizationName () : base ("2.5.4.10", 64)
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{
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}
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}
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public class OrganizationalUnitName : AttributeTypeAndValue {
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public OrganizationalUnitName () : base ("2.5.4.11", 64)
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{
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}
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}
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// NOTE: Not part of RFC2253
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public class EmailAddress : AttributeTypeAndValue {
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public EmailAddress () : base ("1.2.840.113549.1.9.1", 128, 0x16)
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{
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}
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}
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// RFC2247, Section 4
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public class DomainComponent : AttributeTypeAndValue {
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// no maximum length defined
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public DomainComponent ()
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: base ("0.9.2342.19200300.100.1.25", Int32.MaxValue, 0x16)
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{
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}
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}
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// RFC1274, Section 9.3.1
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public class UserId : AttributeTypeAndValue {
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public UserId ()
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: base ("0.9.2342.19200300.100.1.1", 256)
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{
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}
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}
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public class Oid : AttributeTypeAndValue {
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public Oid (string oid)
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: base (oid, Int32.MaxValue)
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{
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}
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}
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/* -- Naming attributes of type X520Title
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* id-at-title AttributeType ::= { id-at 12 }
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*
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* X520Title ::= CHOICE {
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* teletexString TeletexString (SIZE (1..ub-title)),
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* printableString PrintableString (SIZE (1..ub-title)),
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* universalString UniversalString (SIZE (1..ub-title)),
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* utf8String UTF8String (SIZE (1..ub-title)),
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* bmpString BMPString (SIZE (1..ub-title))
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* }
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*/
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public class Title : AttributeTypeAndValue {
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public Title () : base ("2.5.4.12", 64)
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{
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}
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}
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public class CountryName : AttributeTypeAndValue {
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// (0x13) PRINTABLESTRING
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public CountryName () : base ("2.5.4.6", 2, 0x13)
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{
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}
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}
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public class DnQualifier : AttributeTypeAndValue {
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// (0x13) PRINTABLESTRING
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public DnQualifier () : base ("2.5.4.46", 2, 0x13)
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{
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}
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}
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public class Surname : AttributeTypeAndValue {
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public Surname () : base ("2.5.4.4", 32768)
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{
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}
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}
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public class GivenName : AttributeTypeAndValue {
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public GivenName () : base ("2.5.4.42", 16)
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{
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}
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}
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public class Initial : AttributeTypeAndValue {
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public Initial () : base ("2.5.4.43", 5)
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{
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}
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}
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}
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/* From RFC3280
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* -- specifications of Upper Bounds MUST be regarded as mandatory
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* -- from Annex B of ITU-T X.411 Reference Definition of MTS Parameter
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*
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* -- Upper Bounds
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*
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* ub-name INTEGER ::= 32768
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* ub-common-name INTEGER ::= 64
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* ub-locality-name INTEGER ::= 128
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* ub-state-name INTEGER ::= 128
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* ub-organization-name INTEGER ::= 64
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* ub-organizational-unit-name INTEGER ::= 64
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* ub-title INTEGER ::= 64
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* ub-serial-number INTEGER ::= 64
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* ub-match INTEGER ::= 128
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* ub-emailaddress-length INTEGER ::= 128
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* ub-common-name-length INTEGER ::= 64
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* ub-country-name-alpha-length INTEGER ::= 2
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* ub-country-name-numeric-length INTEGER ::= 3
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* ub-domain-defined-attributes INTEGER ::= 4
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* ub-domain-defined-attribute-type-length INTEGER ::= 8
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* ub-domain-defined-attribute-value-length INTEGER ::= 128
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* ub-domain-name-length INTEGER ::= 16
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* ub-extension-attributes INTEGER ::= 256
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* ub-e163-4-number-length INTEGER ::= 15
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* ub-e163-4-sub-address-length INTEGER ::= 40
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* ub-generation-qualifier-length INTEGER ::= 3
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* ub-given-name-length INTEGER ::= 16
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* ub-initials-length INTEGER ::= 5
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* ub-integer-options INTEGER ::= 256
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* ub-numeric-user-id-length INTEGER ::= 32
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* ub-organization-name-length INTEGER ::= 64
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* ub-organizational-unit-name-length INTEGER ::= 32
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* ub-organizational-units INTEGER ::= 4
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* ub-pds-name-length INTEGER ::= 16
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* ub-pds-parameter-length INTEGER ::= 30
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* ub-pds-physical-address-lines INTEGER ::= 6
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* ub-postal-code-length INTEGER ::= 16
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* ub-pseudonym INTEGER ::= 128
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* ub-surname-length INTEGER ::= 40
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* ub-terminal-id-length INTEGER ::= 24
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* ub-unformatted-address-length INTEGER ::= 180
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* ub-x121-address-length INTEGER ::= 16
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*
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* -- Note - upper bounds on string types, such as TeletexString, are
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* -- measured in characters. Excepting PrintableString or IA5String, a
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* -- significantly greater number of octets will be required to hold
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* -- such a value. As a minimum, 16 octets, or twice the specified
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* -- upper bound, whichever is the larger, should be allowed for
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* -- TeletexString. For UTF8String or UniversalString at least four
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* -- times the upper bound should be allowed.
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*/
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}
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