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  2. Skeleton key - Wikipedia

    en.wikipedia.org/wiki/Skeleton_key

    A master key system of lever locks has the same lever heights in all locks. Each door will have different wards and can only be opened by the correctly warded key or the master key. A skeleton key has the warded section of the key removed so that it opens all the doors of a system.

  3. Master keying - Wikipedia

    en.wikipedia.org/wiki/Master_keying

    The differences are in the locks the key will operate. These master-keyed locks are configured to operate with two, or more, different keys: one specific to each lock (the change key), which cannot operate any of the others in the set, and the master key, which operates all the locks in the set. [1] Locks that have master keys have a second set ...

  4. Key relevance - Wikipedia

    en.wikipedia.org/wiki/Key_relevance

    Key relevance is the measure of similarity between the key and the optimal size needed to fit the lock, or it is the similarity between a duplicate key and the original it is seeking to replicate. Key relevance cannot be deduced from a key code, since the key code merely refers to a central authoritative source for designed shapes and sizes of ...

  5. TSA's master keys photos leaked and now everyone can 3-D ...

    www.aol.com/news/2015-09-10-tsas-master-keys...

    Now everyone can 3-D print Transportation Security Administration's master keys that open any approved lock, after a photo leaked. TSA's master keys photos leaked and now everyone can 3-D print ...

  6. Travel Sentry - Wikipedia

    en.wikipedia.org/wiki/Travel_Sentry

    In a 2014 article in the Washington Post, [6] a picture of the special tools was included, and while this picture was later removed, it quickly spread. [7] Security researchers have pointed out that anyone can now make new master keys and open the locks without any sign of entry, and the locks can be considered compromised.

  7. Glossary of cryptographic keys - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_cryptographic_keys

    master key - key from which all other keys (or a large group of keys) can be derived. Analogous to a physical key that can open all the doors in a building. master encryption key (MEK) - Used to encrypt the DEK/TEK key. master key encryption key (MKEK) - Used to encrypt multiple KEK keys. For example, an HSM can generate several KEK and wrap ...