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Diffstat (limited to 'synapse/config/registration.py')
| -rw-r--r-- | synapse/config/registration.py | 4 |
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 |