From 83677670067f9a8cc06fa15b1149fdfcafc52d72 Mon Sep 17 00:00:00 2001
From: Tom Hacohen <tom@stosb.com>
Date: Sat, 30 Dec 2017 15:34:26 +0000
Subject: [PATCH] SyncGate: only get asymmetricKey from UserInfo if needed.

---
 src/SyncGate.tsx | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/SyncGate.tsx b/src/SyncGate.tsx
index 03e0962..99ba966 100644
--- a/src/SyncGate.tsx
+++ b/src/SyncGate.tsx
@@ -43,8 +43,7 @@ const syncInfoSelector = createSelector(
   (props: PropsTypeInner) => props.userInfo,
   (etesync, journals, entries, userInfo) => {
     const derived = etesync.encryptionKey;
-    const keyPair = userInfo.getKeyPair(new EteSync.CryptoManager(derived, 'userInfo', userInfo.version));
-    const asymmetricCryptoManager = new EteSync.AsymmetricCryptoManager(keyPair);
+    let asymmetricCryptoManager: EteSync.AsymmetricCryptoManager;
     return journals.reduce(
       (ret, journal) => {
         const journalEntries = entries.get(journal.uid);
@@ -56,6 +55,10 @@ const syncInfoSelector = createSelector(
 
         let cryptoManager: EteSync.CryptoManager;
         if (journal.key) {
+          if (!asymmetricCryptoManager) {
+            const keyPair = userInfo.getKeyPair(new EteSync.CryptoManager(derived, 'userInfo', userInfo.version));
+            asymmetricCryptoManager = new EteSync.AsymmetricCryptoManager(keyPair);
+          }
           const derivedJournalKey = asymmetricCryptoManager.decryptBytes(journal.key);
           cryptoManager = EteSync.CryptoManager.fromDerivedKey(derivedJournalKey, journal.version);
         } else {