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2025-10-09 09:57:24 +09:00
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using Org.BouncyCastle.Asn1.Pkcs;
namespace Org.BouncyCastle.Asn1.Smime;
public abstract class SmimeAttributes
{
public static readonly DerObjectIdentifier SmimeCapabilities = PkcsObjectIdentifiers.Pkcs9AtSmimeCapabilities;
public static readonly DerObjectIdentifier EncrypKeyPref = PkcsObjectIdentifiers.IdAAEncrypKeyPref;
}

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using System;
using System.Collections;
using Org.BouncyCastle.Asn1.Nist;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Smime;
public class SmimeCapabilities : Asn1Encodable
{
public static readonly DerObjectIdentifier PreferSignedData = PkcsObjectIdentifiers.PreferSignedData;
public static readonly DerObjectIdentifier CannotDecryptAny = PkcsObjectIdentifiers.CannotDecryptAny;
public static readonly DerObjectIdentifier SmimeCapabilitesVersions = PkcsObjectIdentifiers.SmimeCapabilitiesVersions;
public static readonly DerObjectIdentifier Aes256Cbc = NistObjectIdentifiers.IdAes256Cbc;
public static readonly DerObjectIdentifier Aes192Cbc = NistObjectIdentifiers.IdAes192Cbc;
public static readonly DerObjectIdentifier Aes128Cbc = NistObjectIdentifiers.IdAes128Cbc;
public static readonly DerObjectIdentifier IdeaCbc = new DerObjectIdentifier("1.3.6.1.4.1.188.7.1.1.2");
public static readonly DerObjectIdentifier Cast5Cbc = new DerObjectIdentifier("1.2.840.113533.7.66.10");
public static readonly DerObjectIdentifier DesCbc = new DerObjectIdentifier("1.3.14.3.2.7");
public static readonly DerObjectIdentifier DesEde3Cbc = PkcsObjectIdentifiers.DesEde3Cbc;
public static readonly DerObjectIdentifier RC2Cbc = PkcsObjectIdentifiers.RC2Cbc;
private Asn1Sequence capabilities;
public static SmimeCapabilities GetInstance(object obj)
{
if (obj == null || obj is SmimeCapabilities)
{
return (SmimeCapabilities)obj;
}
if (obj is Asn1Sequence)
{
return new SmimeCapabilities((Asn1Sequence)obj);
}
if (obj is AttributeX509)
{
return new SmimeCapabilities((Asn1Sequence)((AttributeX509)obj).AttrValues[0]);
}
throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
}
public SmimeCapabilities(Asn1Sequence seq)
{
capabilities = seq;
}
[Obsolete("Use 'GetCapabilitiesForOid' instead")]
public ArrayList GetCapabilities(DerObjectIdentifier capability)
{
ArrayList arrayList = new ArrayList();
DoGetCapabilitiesForOid(capability, arrayList);
return arrayList;
}
public IList GetCapabilitiesForOid(DerObjectIdentifier capability)
{
IList list = Platform.CreateArrayList();
DoGetCapabilitiesForOid(capability, list);
return list;
}
private void DoGetCapabilitiesForOid(DerObjectIdentifier capability, IList list)
{
if (capability == null)
{
foreach (object capability2 in capabilities)
{
SmimeCapability instance = SmimeCapability.GetInstance(capability2);
list.Add(instance);
}
return;
}
foreach (object capability3 in capabilities)
{
SmimeCapability instance2 = SmimeCapability.GetInstance(capability3);
if (capability.Equals(instance2.CapabilityID))
{
list.Add(instance2);
}
}
}
public override Asn1Object ToAsn1Object()
{
return capabilities;
}
}

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using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Smime;
public class SmimeCapabilitiesAttribute : AttributeX509
{
public SmimeCapabilitiesAttribute(SmimeCapabilityVector capabilities)
: base(SmimeAttributes.SmimeCapabilities, new DerSet(new DerSequence(capabilities.ToAsn1EncodableVector())))
{
}
}

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using System;
using Org.BouncyCastle.Asn1.Pkcs;
namespace Org.BouncyCastle.Asn1.Smime;
public class SmimeCapability : Asn1Encodable
{
public static readonly DerObjectIdentifier PreferSignedData = PkcsObjectIdentifiers.PreferSignedData;
public static readonly DerObjectIdentifier CannotDecryptAny = PkcsObjectIdentifiers.CannotDecryptAny;
public static readonly DerObjectIdentifier SmimeCapabilitiesVersions = PkcsObjectIdentifiers.SmimeCapabilitiesVersions;
public static readonly DerObjectIdentifier DesCbc = new DerObjectIdentifier("1.3.14.3.2.7");
public static readonly DerObjectIdentifier DesEde3Cbc = PkcsObjectIdentifiers.DesEde3Cbc;
public static readonly DerObjectIdentifier RC2Cbc = PkcsObjectIdentifiers.RC2Cbc;
private DerObjectIdentifier capabilityID;
private Asn1Object parameters;
public DerObjectIdentifier CapabilityID => capabilityID;
public Asn1Object Parameters => parameters;
public SmimeCapability(Asn1Sequence seq)
{
capabilityID = (DerObjectIdentifier)seq[0].ToAsn1Object();
if (seq.Count > 1)
{
parameters = seq[1].ToAsn1Object();
}
}
public SmimeCapability(DerObjectIdentifier capabilityID, Asn1Encodable parameters)
{
if (capabilityID == null)
{
throw new ArgumentNullException("capabilityID");
}
this.capabilityID = capabilityID;
if (parameters != null)
{
this.parameters = parameters.ToAsn1Object();
}
}
public static SmimeCapability GetInstance(object obj)
{
if (obj == null || obj is SmimeCapability)
{
return (SmimeCapability)obj;
}
if (obj is Asn1Sequence)
{
return new SmimeCapability((Asn1Sequence)obj);
}
throw new ArgumentException("Invalid SmimeCapability");
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(capabilityID);
if (parameters != null)
{
asn1EncodableVector.Add(parameters);
}
return new DerSequence(asn1EncodableVector);
}
}

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namespace Org.BouncyCastle.Asn1.Smime;
public class SmimeCapabilityVector
{
private readonly Asn1EncodableVector capabilities = new Asn1EncodableVector();
public void AddCapability(DerObjectIdentifier capability)
{
capabilities.Add(new DerSequence(capability));
}
public void AddCapability(DerObjectIdentifier capability, int value)
{
capabilities.Add(new DerSequence(capability, new DerInteger(value)));
}
public void AddCapability(DerObjectIdentifier capability, Asn1Encodable parameters)
{
capabilities.Add(new DerSequence(capability, parameters));
}
public Asn1EncodableVector ToAsn1EncodableVector()
{
return capabilities;
}
}

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using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Smime;
public class SmimeEncryptionKeyPreferenceAttribute : AttributeX509
{
public SmimeEncryptionKeyPreferenceAttribute(IssuerAndSerialNumber issAndSer)
: base(SmimeAttributes.EncrypKeyPref, new DerSet(new DerTaggedObject(explicitly: false, 0, issAndSer)))
{
}
public SmimeEncryptionKeyPreferenceAttribute(RecipientKeyIdentifier rKeyID)
: base(SmimeAttributes.EncrypKeyPref, new DerSet(new DerTaggedObject(explicitly: false, 1, rKeyID)))
{
}
public SmimeEncryptionKeyPreferenceAttribute(Asn1OctetString sKeyID)
: base(SmimeAttributes.EncrypKeyPref, new DerSet(new DerTaggedObject(explicitly: false, 2, sKeyID)))
{
}
}