From a0822a6b7129aca3999a354747f0bf3a0529f8a6 Mon Sep 17 00:00:00 2001
From: zzz <zzz@mail.i2p>
Date: Fri, 23 Oct 2020 16:09:15 +0000
Subject: [PATCH] NTCP2: Reduce min downtime for rekeying if hidden

---
 .../java/src/net/i2p/router/transport/ntcp/NTCPTransport.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/router/java/src/net/i2p/router/transport/ntcp/NTCPTransport.java b/router/java/src/net/i2p/router/transport/ntcp/NTCPTransport.java
index b8bc674fd8..e08bfeb177 100644
--- a/router/java/src/net/i2p/router/transport/ntcp/NTCPTransport.java
+++ b/router/java/src/net/i2p/router/transport/ntcp/NTCPTransport.java
@@ -137,6 +137,7 @@ public class NTCPTransport extends TransportImpl {
     private static final int NTCP2_IV_LEN = OutboundNTCP2State.IV_SIZE;
     private static final int NTCP2_KEY_LEN = OutboundNTCP2State.KEY_SIZE;
     private static final long MIN_DOWNTIME_TO_REKEY = 30*24*60*60*1000L;
+    private static final long MIN_DOWNTIME_TO_REKEY_HIDDEN = 24*60*60*1000L;
     private final boolean _enableNTCP1;
     private final boolean _enableNTCP2;
     private final byte[] _ntcp2StaticPubkey;
@@ -252,7 +253,8 @@ public class NTCPTransport extends TransportImpl {
             String b64IV = null;
             String s = null;
             // try to determine if we've been down for 30 days or more
-            boolean shouldRekey = _context.getEstimatedDowntime() >= MIN_DOWNTIME_TO_REKEY;
+            long minDowntime = _context.router().isHidden() ? MIN_DOWNTIME_TO_REKEY_HIDDEN : MIN_DOWNTIME_TO_REKEY;
+            boolean shouldRekey = _context.getEstimatedDowntime() >= minDowntime;
             if (!shouldRekey) {
                 s = ctx.getProperty(PROP_NTCP2_SP);
                 if (s != null) {