Medeco Original - Revision history

TheCre8r: /* Medeco Original */ - Updated source to archive.org

2024-06-03T00:41:40Z

Medeco Original: - Updated source to archive.org

← Older revision		Revision as of 00:41, 3 June 2024
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	'''Notes'''		'''Notes'''
	* The validity of key bumping attacks against Medeco cylinders has been debated between Medeco and the [[locksport]] community. Research done by Marc Weber Tobias and Tobias Bluzmanis has shown these systems are vulnerable to a wide variety of attacks, including bumping.		* The validity of key bumping attacks against Medeco cylinders has been debated between Medeco and the [[locksport]] community. Research done by Marc Weber Tobias and Tobias Bluzmanis has shown these systems are vulnerable to a wide variety of attacks, including bumping.
	* Lockpicking attacks against this lock were previously thought extremely difficult due to axial rotation. A tool called the "Medecoder", developed by Jon King, made this process much easier and at the same time allowed for decoding of the sidebar code.<ref>King, Jon. [http://~~www.~~theamazingking.com/medecoder.html The Amazing King - Medecoder]</ref>		* Lockpicking attacks against this lock were previously thought extremely difficult due to axial rotation. A tool called the "Medecoder", developed by Jon King, made this process much easier and at the same time allowed for decoding of the sidebar code.<ref>King, Jon. [https://web.archive.org/web/20100820074816/http://theamazingking.com/medecoder.html The Amazing King - Medecoder]</ref>

	== Gallery ==		== Gallery ==

Datagram at 21:36, 3 February 2021

2021-02-03T21:36:59Z

← Older revision		Revision as of 21:36, 3 February 2021
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	\| lock_design = [[Pin-tumbler]], [[Sidebar]]		\| lock_design = [[Pin-tumbler]], [[Sidebar]]
	\| years_produced = 1968-Present		\| years_produced = 1968-Present
	\| patent = [~~http~~://~~www~~.google.com/~~patents?id=dyYMAAAAEBAJ~~ US 3,499,302]		\| patent = [https://patents.google.com/patent/US3499302A/ US 3,499,302]
	\| related = [[Medeco Biaxial]]<br>[[Medeco M3]]<br>[[Medeco Duracam]]		\| related = [[Medeco Biaxial]]<br>[[Medeco M3]]<br>[[Medeco Duracam]]
	}}		}}

TecknicalTom: adding pages to the "Lock models" category

2010-10-01T13:20:04Z

adding pages to the "Lock models" category

← Older revision		Revision as of 13:20, 1 October 2010
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	[[Category:Medeco\|Original]]		[[Category:Medeco\|Original]]
	[[Category:Axial rotation]]		[[Category:Axial rotation]]
			[[Category:Lock models]]

Datagram at 16:09, 16 June 2010

2010-06-16T16:09:29Z

← Older revision		Revision as of 16:09, 16 June 2010
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	[[Category:Sidebar locks]]		[[Category:Sidebar locks]]
	[[Category:Medeco\|Original]]		[[Category:Medeco\|Original]]
			[[Category:Axial rotation]]

Datagram at 18:24, 9 September 2009

2009-09-09T18:24:30Z

← Older revision		Revision as of 18:24, 9 September 2009
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	{{ Lock model		{{ Lock model
	\| name = Medeco Original		\| name = Medeco Original
	\| Img =		\| Img = File:Medeco_Original_cylinder.jpg
	\| maker = [[Medeco]]		\| maker = [[Medeco]]
	\| lock_type = [[Cylinder]]		\| lock_type = [[Cylinder]]
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	<div align="center"><gallery>		<div align="center"><gallery>
			File:Medeco Original keys.jpg\|Five and six pin Original keys.
	</gallery></div>		</gallery></div>

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	<div align="center"><gallery>		<div align="center"><gallery>
			File:Medeco Original pins all.jpg
	</gallery></div>		</gallery></div>

Datagram: Created page with '=Medeco Original= {{ Loc…'

2009-08-12T18:58:49Z

Created page with '=Medeco Original= {{ Loc…'

New page

=Medeco Original=

{{ Lock model
| name = Medeco Original
| Img =
| maker = [[Medeco]]
| lock_type = [[Cylinder]]
| lock_design = [[Pin-tumbler]], [[Sidebar]]
| years_produced = 1968-Present
| patent = [http://www.google.com/patents?id=dyYMAAAAEBAJ US 3,499,302]
| related = [[Medeco Biaxial]]<br>[[Medeco M3]]<br>[[Medeco Duracam]]
}}

The '''Original''' is a [[UL 437]] rated [[pin-tumbler]] lock made by [[Medeco]]. It is well known for the use of rotating bottom (key) pins that interface with a [[sidebar]]. The Original has the distinction of being the first pin-tumbler lock to use [[axial rotation]], and is the basis for most other Medeco mechanical locks since. It was previously thought to be one of the most secure locks available, but continued research from the [[locksport]] community has proven a variety of attacks are possible, including [[key bumping]].

The Original has since been superceded by the [[Medeco Biaxial]] and [[Medeco M3]].

__TOC__

== Principles of Operation ==

The Medeco Original uses five or six pin-tumblers that provide [[axial rotation]] to interface with a sidebar located at 3 o'clock. Pin-tumblers must be properly raised to the shear line as well as rotated so that the sidebar arms can fall into notches on the side of each pin-tumbler. Axial rotation is provided by the design of the bottom (key) pins and angled bitting cuts on the key. There are 6 depths available for pin-tumblers, allowing 7,776 (6<sup>5</sup>) theoretical key [[differs]] in a five pin Original (excluding the sidebar).

The sidebar interfaces with notches on the bottom pins. Bottom pins must be properly rotated so that their true notches interface with the sidebar arms. The Original uses three different rotations:

<div align="center">
{| class="prettytable"
|-
! Type || Left || Center || Right
|-
! Fore (Biaxial)
| K || B || Q
|-
! Original
| L || C || R
|-
! Aft (Biaxial)
| M || D || S
|}</div>

This allows for 243 (3<sup>5</sup>) and 729 (3<sup>6</sup>) sidebar differs in five and six pin Originals, respectively.

The Original uses 2-3 mushroom top pins in each cylinder to provide manipulation resistance to traditional [[lockpicking]]. The sidebar notches on the sides of the bottom pins may also have false notches to resist manipulation by rotation. In addition, "ARX" pins are used to protect against manipulation by rotation. ARX pins close the sidebar notches before they reach the end of the pin, making it so they cannot be readily grabbed by a tool.

Resistance to forced entry is provided in the form of hardened steel rods and discs. In the plug rods are in the 3, 9, and 12 o'clock positions. In the cylinder, two crescent shaped discs are placed at the 12 and 3 o'clock positions to protect the pin-chambers and the sidebar. As a secondary locking mechanism, the sidebar itself also helps to protect against a variety of forced entry techniques. Bottom pins may also have a hardened steel core to resist drilling.

<div align="center"><gallery>
</gallery></div>

'''Notes'''
* Original and Biaxial bottom pins are not interchangeable. They are identified by the position of the flag that limits rotation. The flag is 90° from the true gate in the Original and 180° in the Biaxial.

== Disassembly instructions ==

Disassembly of the Original is simplified compared to other sidebar-based locks because there are no additional finger pins used in the sidebar.

{{Pin-tumbler standard disassembly}}

'''Notes'''
* When reassembled the sidebar must be pointed down, with the ball bearing facing the front of the plug.

== Vulnerabilities ==

* [[Lockpicking]]
* [[Decoding]]
* [[Impressioning]]
* [[Key bumping]]

'''Notes'''
* The validity of key bumping attacks against Medeco cylinders has been debated between Medeco and the [[locksport]] community. Research done by Marc Weber Tobias and Tobias Bluzmanis has shown these systems are vulnerable to a wide variety of attacks, including bumping.
* Lockpicking attacks against this lock were previously thought extremely difficult due to axial rotation. A tool called the "Medecoder", developed by Jon King, made this process much easier and at the same time allowed for decoding of the sidebar code.<ref>King, Jon. [http://www.theamazingking.com/medecoder.html The Amazing King - Medecoder]</ref>

== Gallery ==

<div align="center"><gallery>
</gallery></div>

== References ==
<references />

== See also ==

* [[Medeco]]
* [[Pin-tumbler]]
* [[Sidebar]]

[[Category:UL 437 locks]]
[[Category:Pin-tumbler locks]]
[[Category:Sidebar locks]]
[[Category:Medeco|Original]]