init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Crmf/PkiArchiveControlBuilder.cs

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+using System;
+using System.IO;
+using Org.BouncyCastle.Asn1.Cms;
+using Org.BouncyCastle.Asn1.Crmf;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Cms;
+using Org.BouncyCastle.Crypto;
+
+namespace Org.BouncyCastle.Crmf;
+
+public class PkiArchiveControlBuilder
+{
+	private CmsEnvelopedDataGenerator envGen;
+
+	private CmsProcessableByteArray keyContent;
+
+	public PkiArchiveControlBuilder(PrivateKeyInfo privateKeyInfo, GeneralName generalName)
+	{
+		EncKeyWithID encKeyWithID = new EncKeyWithID(privateKeyInfo, generalName);
+		try
+		{
+			keyContent = new CmsProcessableByteArray(CrmfObjectIdentifiers.id_ct_encKeyWithID, encKeyWithID.GetEncoded());
+		}
+		catch (IOException innerException)
+		{
+			throw new InvalidOperationException("unable to encode key and general name info", innerException);
+		}
+		envGen = new CmsEnvelopedDataGenerator();
+	}
+
+	public PkiArchiveControlBuilder AddRecipientGenerator(RecipientInfoGenerator recipientGen)
+	{
+		envGen.AddRecipientInfoGenerator(recipientGen);
+		return this;
+	}
+
+	public PkiArchiveControl Build(ICipherBuilderWithKey contentEncryptor)
+	{
+		CmsEnvelopedData cmsEnvelopedData = envGen.Generate(keyContent, contentEncryptor);
+		EnvelopedData instance = EnvelopedData.GetInstance(cmsEnvelopedData.ContentInfo.Content);
+		return new PkiArchiveControl(new PkiArchiveOptions(new EncryptedKey(instance)));
+	}
+}