From 8719b3eb645188ed98dd9c95e5fefef264b91f11 Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Fri, 2 Jun 2017 21:58:20 -0400
Subject: [PATCH] revert back to KeyPairGeneratorSpec

KeyGenParameterSpec crashes
---
 src/Android/Services/KeyStoreBackedStorageService.cs | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/Android/Services/KeyStoreBackedStorageService.cs b/src/Android/Services/KeyStoreBackedStorageService.cs
index 47e816949..d55d731ce 100644
--- a/src/Android/Services/KeyStoreBackedStorageService.cs
+++ b/src/Android/Services/KeyStoreBackedStorageService.cs
@@ -102,11 +102,12 @@ namespace Bit.Android.Services
                 end.Add(CalendarField.Year, 30);
 
                 var gen = KeyPairGenerator.GetInstance(KeyProperties.KeyAlgorithmRsa, AndroidKeyStore);
-                var spec = new KeyGenParameterSpec.Builder(KeyAlias, KeyStorePurpose.Encrypt | KeyStorePurpose.Decrypt)
-                    .SetCertificateSubject(new X500Principal($"CN={KeyAlias}"))
-                    .SetCertificateSerialNumber(BigInteger.Ten)
-                    .SetKeyValidityStart(start.Time)
-                    .SetKeyValidityEnd(end.Time)
+                var spec = new KeyPairGeneratorSpec.Builder(Application.Context)
+                    .SetAlias(KeyAlias)
+                    .SetSubject(new X500Principal($"CN={KeyAlias}"))
+                    .SetSerialNumber(BigInteger.Ten)
+                    .SetStartDate(start.Time)
+                    .SetEndDate(end.Time)
                     .Build();
 
                 gen.Initialize(spec);