If you've only got an SIO and you wonder what the length of the credential is, this information, experimentally derived and provided on Discord, may help.
SIO Payload Length | PACS Minimum Size | PACS Maximum Size |
---|---|---|
21 Bytes | 25 bits | 32 bits |
22 Bytes | 33 bits | 40 bits |
23 Bytes | 41 bits | 48 bits |