init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Pkcs/Pkcs8EncryptedPrivateKeyInfoBuilder.cs

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+using System;
+using System.IO;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.Utilities.IO;
+
+namespace Org.BouncyCastle.Pkcs;
+
+public class Pkcs8EncryptedPrivateKeyInfoBuilder
+{
+	private PrivateKeyInfo privateKeyInfo;
+
+	public Pkcs8EncryptedPrivateKeyInfoBuilder(byte[] privateKeyInfo)
+		: this(PrivateKeyInfo.GetInstance(privateKeyInfo))
+	{
+	}
+
+	public Pkcs8EncryptedPrivateKeyInfoBuilder(PrivateKeyInfo privateKeyInfo)
+	{
+		this.privateKeyInfo = privateKeyInfo;
+	}
+
+	public Pkcs8EncryptedPrivateKeyInfo Build(ICipherBuilder encryptor)
+	{
+		try
+		{
+			MemoryStream memoryStream = new MemoryOutputStream();
+			ICipher cipher = encryptor.BuildCipher(memoryStream);
+			byte[] encoded = privateKeyInfo.GetEncoded();
+			Stream stream = cipher.Stream;
+			stream.Write(encoded, 0, encoded.Length);
+			Platform.Dispose(stream);
+			return new Pkcs8EncryptedPrivateKeyInfo(new EncryptedPrivateKeyInfo((AlgorithmIdentifier)encryptor.AlgorithmDetails, memoryStream.ToArray()));
+		}
+		catch (IOException)
+		{
+			throw new InvalidOperationException("cannot encode privateKeyInfo");
+		}
+	}
+}