diff --git a/Crypto/src/pkcs/EncryptedPrivateKeyInfoFactory.cs b/Crypto/src/pkcs/EncryptedPrivateKeyInfoFactory.cs
new file mode 100644
index 000000000..b69693490
--- /dev/null
+++ b/Crypto/src/pkcs/EncryptedPrivateKeyInfoFactory.cs
@@ -0,0 +1,75 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Security;
+
+namespace Org.BouncyCastle.Pkcs
+{
+ public sealed class EncryptedPrivateKeyInfoFactory
+ {
+ private EncryptedPrivateKeyInfoFactory()
+ {
+ }
+
+ public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(
+ DerObjectIdentifier algorithm,
+ char[] passPhrase,
+ byte[] salt,
+ int iterationCount,
+ AsymmetricKeyParameter key)
+ {
+ return CreateEncryptedPrivateKeyInfo(
+ algorithm.Id, passPhrase, salt, iterationCount,
+ PrivateKeyInfoFactory.CreatePrivateKeyInfo(key));
+ }
+
+ public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(
+ string algorithm,
+ char[] passPhrase,
+ byte[] salt,
+ int iterationCount,
+ AsymmetricKeyParameter key)
+ {
+ return CreateEncryptedPrivateKeyInfo(
+ algorithm, passPhrase, salt, iterationCount,
+ PrivateKeyInfoFactory.CreatePrivateKeyInfo(key));
+ }
+
+ public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(
+ string algorithm,
+ char[] passPhrase,
+ byte[] salt,
+ int iterationCount,
+ PrivateKeyInfo keyInfo)
+ {
+ if (!PbeUtilities.IsPbeAlgorithm(algorithm))
+ throw new ArgumentException("attempt to use non-PBE algorithm with PBE EncryptedPrivateKeyInfo generation");
+
+ IBufferedCipher cipher = PbeUtilities.CreateEngine(algorithm) as IBufferedCipher;
+
+ if (cipher == null)
+ {
+ // TODO Throw exception?
+ }
+
+ Asn1Encodable parameters = PbeUtilities.GenerateAlgorithmParameters(
+ algorithm, salt, iterationCount);
+
+ ICipherParameters keyParameters = PbeUtilities.GenerateCipherParameters(
+ algorithm, passPhrase, parameters);
+
+ cipher.Init(true, keyParameters);
+
+ byte[] keyBytes = keyInfo.GetEncoded();
+ byte[] encoding = cipher.DoFinal(keyBytes);
+
+ DerObjectIdentifier oid = PbeUtilities.GetObjectIdentifier(algorithm);
+ AlgorithmIdentifier algID = new AlgorithmIdentifier(oid, parameters);
+
+ return new EncryptedPrivateKeyInfo(algID, encoding);
+ }
+ }
+}
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