Identica
OfficialCredential

Settings

Every setting of providers/Credential/settings.yml.

providers/Credential/settings.yml holds Credential's settings. Passwords and Brute-force protection explain how they work together.

scenario

registration

enabled

Takestrue or false

Defaulttrue

Affectswhether new players can register with Credential, and accounts can move to it

When false, a registration is refused with the provider's registration-disabled message.

requireRepeat

Takestrue or false

Defaulttrue

Affectswhether a new player confirms their password by typing it a second time

credential

The rules every new password follows, at registration and with /changepassword. A rule set to 0 is not enforced. Spaces are never allowed.

minLength

Takesa non-negative integer

Default6

Affectsthe minimum length of a password

maxLength

Takesa non-negative integer

Default32

Affectsthe maximum length of a password

minUpper

Takesa non-negative integer

Default1

Affectshow many upper case letters a password needs

minLower

Takesa non-negative integer

Default1

Affectshow many lower case letters a password needs

minNumber

Takesa non-negative integer

Default1

Affectshow many digits a password needs

minSpecial

Takesa non-negative integer

Default1

Affectshow many characters other than letters and digits a password needs

scenario:
  registration:
    enabled: true
    requireRepeat: true
    credential:
      minLength: 8
      maxLength: 64
      minUpper: 1
      minLower: 1
      minNumber: 1
      minSpecial: 1

authentication.bruteforce

Advanced

Counts wrong passwords and locks the player out after too many. It follows the sentinel switch of Credential's entry in providers/providers.yml.

maxAttempts

Takesa non-negative integer

Default5

Affectshow many wrong passwords are allowed within lockout.duration

0 turns the protection off.

lockout.enabled

Takestrue or false

Defaulttrue

Affectswhether reaching maxAttempts locks the player out

When false, wrong passwords are still counted and warned about, but nobody is locked out.

lockout.duration

Advanced

Takesa positive duration

Default"5m"

Affectshow long a wrong password is counted, and how long a lockout lasts

A zero or negative duration stops counting wrong passwords.

warning.enabled

Takestrue or false

Defaulttrue

Affectswhether a wrong password is answered with the number of attempts left

Takesan integer from 0 to 100

Default50

Affectsfrom which share of maxAttempts the warning is shown

With maxAttempts: 5 and 50, the warning starts at the third wrong password, which leaves two. Values outside 0 to 100 are treated as the nearest end.

Takestrue or false

Defaulttrue

Affectswhether /changepassword <current> <new> [repeat] requires the repeat argument

With true, a missing repeat counts as a mismatch. With false, repeat is optional, but a given one must match. The command's syntax does not change with this setting: remove [repeat] from the change-password usage in providers/Credential/commands.yml to stop offering it, as described for usage.

cryptography

How Credential hashes passwords. See Hashing.

algorithm

Advanced

Takes"bcrypt" or "argon2", in any case

Default"bcrypt"

Affectshow new password hashes are made

Existing hashes keep working with the algorithm that made them. A blank or unknown value makes registrations and password changes fail.

bcrypt reads only the first 72 bytes of a password; anything after that is ignored. A character outside ASCII takes two to four bytes, so this can apply below maxLength. argon2 has no such limit.

autoupgrade

Takestrue or false

Defaulttrue

Affectswhether a hash made with another algorithm is remade with algorithm when its player logs in successfully

algorithms.bcrypt.cost

Advanced

Takesa positive integer

Default12

Affectsthe work factor of new bcrypt hashes

Each step up doubles the time a hash takes, for logins and for guessing alike.

Advanced

Takesa positive integer

Default3

Affectsthe iterations of new Argon2id hashes

Advanced

Takesa positive integer

Default1

Affectsthe parallelism of new Argon2id hashes

Advanced

Takesa positive integer

Default65536

Affectsthe memory, in kilobytes, each new Argon2id hash uses

A value of 0 or lower in a cost setting makes hashing fail, and with it registrations and password changes.

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