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| =LIPS Octro=
| | #REDIRECT [[LIPS Octro]] |
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| {{Lock model
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| |name=LIPS Octro
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| |Img=File:LIPS_Octro_cylinder.jpg
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| |maker=[[LIPS]]
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| |years_produced=
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| |lock_type=[[Cylinder]]
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| |lock_design=[[Pin-tumbler]], [[Dimple]]
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| |patent=
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| |related=[[KABA Gemini]]<br>[[KESO 2002]]
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| }}
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| The '''Octro''' is a [[dimple]] lock made by [[LIPS]]. It uses fifteen [[pin-tumbler]]s separated into rows of five at 9, 12, and 3 o'clock in the lock. The Octro is similar in function to the [[KABA Gemini]] and [[KESO 2002]] locks. Unlike the Gemini, the Octro is vulnerable to [[Bumping|key bumping]].
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| __TOC__
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| ==Principles of operation==
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| The Octro is a triple-bitted dimple lock with a total of fifteen pin-tumblers. There are three rows of five pins at 9, 12, and 3 o'clock in the lock. The rows at 3 and 9 o'clock are the "side" pins, and the 12 o'clock pins are the "top" pins. The top pins interface with the bitting on the thin side of the key, while side pins interface with the bitting on the flat sides of the key (like normal dimple locks).
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| Each row of pins uses a loading tray to hold driver pins and springs. Each loading tray can have offset chamber bores that associate with offset bores in the [[plug]]. This allows the Octro to provide complex master keying by having physically offset pin positions on a per-lock basis. Though bore positions may differ between locks, keys can have cuts in ''all'' bore positions. This lets the key to be used in locks with different bore patterns as part of a complex [[master keying]] system.
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| There are a total of ten bore positions for top pins, allowing for two different bore patterns (1 3 5 7 9, 2 4 6 8 10). Side pins offer eleven bore positions, with any given lock using 5 positions on one side and 6 on the other (for example: 1 3 5 7 9, 1 3 5 7 9 11). Keys are bitted for both patterns on ''both'' sides of the key to allow the key to function in either orientation.
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| The top pins offer three bitting depths in a normal system, four for master keyed systems. Side pins offer four bitting depths. The high number of pins gives this lock 254,803,968 (4<sup>10</sup> * 3<sup>5</sup>) theoretical key [[differ]]s. Master keying for Octro locks is done by replacing bottom pins with "blind" pins that do not need to be lifted to the shear line.<ref>{{Ref pulford}}</ref>
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| <div align="center"><gallery>
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| File:LIPS_Octro_key_close.jpg|The Octro key with several bitting surfaces.
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| File:LIPS Octro disassembled.jpg|Plug removed from cylinder.
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| File:LIPS Octro pin track.jpg|Loading tray inserted into cylinder.
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| File:LIPS Octro pin bars.jpg|Driver pin loading trays with varied bore patterns.
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| </gallery></div>
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| '''Notes'''
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| * Octro keys are not warded.
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| == Disassembly instructions ==
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| Disassembling the Octro is similar a traditional pin-tumbler lock, though care must be taken because of the high number of components. Distribution of pins along three sets of chambers must be considered when removing the plug from the cylinder.
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| {{Pin-tumbler standard disassembly}}
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| == Vulnerabilities ==
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| The Octro may be vulnerable to one or more of the following:
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| * [[Lockpicking]]
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| * [[Key bumping]]
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| * [[Impressioning]]
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| * [[Decoding]]
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| '''Notes'''
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| * The Octro can be bumped because of the 90° spacing between pins. The [[KABA Gemini]], a similar lock, does not have this problem because of the 15° tilt to the side pins.
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| == Gallery ==
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| <div align="center"><gallery>
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| File:LIPS Octro pins all.jpg|Pins used in the Octro.
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| File:LIPS Octro plug.jpg|[[Plug]] used in the Octro.
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| </gallery></div>
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| == References ==
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| <references />
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| == See also ==
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| * [[LIPS]]
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| * [[KABA Gemini]]
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| * [[Dimple]]
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| [[Category:LIPS|Octro]]
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| [[Category:Dimple locks]
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