summary refs log tree commit diff
path: root/synapse/config/registration.py
diff options
context:
space:
mode:
authorRichard van der Hoff <richard@matrix.org>2018-05-03 14:59:29 +0100
committerRichard van der Hoff <richard@matrix.org>2018-05-03 14:59:29 +0100
commit093d8c415a303fa7c8900e3fe685843b60a85eed (patch)
tree8dd5ceabb4c8ecbae18fa95f10108ba335c6bbbf /synapse/config/registration.py
parentMake 'unexpected logging context' into warnings (diff)
parentMerge pull request #3183 from matrix-org/rav/moar_logcontext_leaks (diff)
downloadsynapse-093d8c415a303fa7c8900e3fe685843b60a85eed.tar.xz
Merge remote-tracking branch 'origin/develop' into rav/warn_on_logcontext_fail
Diffstat (limited to 'synapse/config/registration.py')
-rw-r--r--synapse/config/registration.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/synapse/config/registration.py b/synapse/config/registration.py
index 336959094b..c5384b3ad4 100644
--- a/synapse/config/registration.py
+++ b/synapse/config/registration.py
@@ -77,7 +77,9 @@ class RegistrationConfig(Config):
 
         # Set the number of bcrypt rounds used to generate password hash.
         # Larger numbers increase the work factor needed to generate the hash.
-        # The default number of rounds is 12.
+        # The default number is 12 (which equates to 2^12 rounds).
+        # N.B. that increasing this will exponentially increase the time required
+        # to register or login - e.g. 24 => 2^24 rounds which will take >20 mins.
         bcrypt_rounds: 12
 
         # Allows users to register as guests without a password/email/etc, and