Pkcs8EncryptedPrivateKeyInfoBuilder
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using System;
using System.IO;
namespace Org.BouncyCastle.Pkcs
{
public class Pkcs8EncryptedPrivateKeyInfoBuilder
{
private readonly PrivateKeyInfo m_privateKeyInfo;
public Pkcs8EncryptedPrivateKeyInfoBuilder(byte[] privateKeyInfo)
: this(PrivateKeyInfo.GetInstance(privateKeyInfo))
{
}
public Pkcs8EncryptedPrivateKeyInfoBuilder(PrivateKeyInfo privateKeyInfo)
{
if (privateKeyInfo == null)
throw new ArgumentNullException("privateKeyInfo");
m_privateKeyInfo = privateKeyInfo;
}
public Pkcs8EncryptedPrivateKeyInfo Build(ICipherBuilder encryptor)
{
try {
AlgorithmIdentifier encryptionAlgorithm = (AlgorithmIdentifier)encryptor.AlgorithmDetails;
MemoryStream memoryStream = new MemoryStream();
using (Stream output = encryptor.BuildCipher(memoryStream).Stream)
m_privateKeyInfo.EncodeTo(output);
DerOctetString encryptedData = DerOctetString.WithContents(memoryStream.ToArray());
return new Pkcs8EncryptedPrivateKeyInfo(new EncryptedPrivateKeyInfo(encryptionAlgorithm, encryptedData));
} catch (IOException) {
throw new InvalidOperationException("cannot encode privateKeyInfo");
}
}
}
}