Security is counted, not hidden: the lock is the key and the keyspace is its number, who you are and what you may do are two separate printed checks, and a chain is exactly as strong as its weakest counted link.
0 events · chain 00000000
The lock, the gate, and the chain
A cipher's method hangs on the wall while the key does the guarding. A badge door runs two separate checks. A chain meter reads the minimum of its links. Commit a prediction before every bench run.