Lock: Difference between revisions
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=Locks= | =Locks= | ||
A lock is a device used to restrict access. It is the duty of the lock to restrict access until the correct key | |||
A lock is a device used to restrict access to an area or enclosure. It is the duty of the lock to restrict access until the correct [[Key|key]] or [[Combination|combination]] is used to operate the lock. Locks are traditionally a combination of a cylinder and a [[Bolt|bolt]]. | |||
Modern locks may incorporate various digital access control features, such as [[Biometrics|biometrics]]. There several major types of locks with many modern high security locks being hybrid designs. | |||
== History == | == History == | ||
Add to me! | Add to me! | ||
== Lock Designs == | == Lock Designs == | ||
;[[Combination]] | ; [[Combination]] | ||
:A keyless lock that uses numbers, letters, or symbols for input. A specific combination of input properly aligns internal components so that the lock can be opened. Most commonly associated with [[Safe| | : A keyless lock that uses numbers, letters, or symbols for input. A specific combination of input properly aligns internal components so that the lock can be opened. Most commonly associated with [[Safe|safes]] or combination padlocks. Combination locks range from low to high security. | ||
;[[Disc_detainer|Disc-detainer]] | ; [[Disc_detainer|Disc-detainer]] | ||
:Uses flat metal tumblers that interface with a [[Sidebar|sidebar]] to prevent rotation of the plug. Separate from wafer designs because discs are usually rotated rather than lifted. | : Uses flat metal tumblers that interface with a [[Sidebar|sidebar]] to prevent rotation of the plug. Separate from wafer designs because discs are usually rotated rather than lifted. | ||
;[[Electronic_lock|Electronic]] | ; [[Electronic_lock|Electronic]] | ||
:A lock that is operated via electronic means. Electronic locks provide advanced auditing and key control capabilities, but generally are not any more secure than traditional locks. | : A lock that is operated via electronic means. Electronic locks provide advanced auditing and key control capabilities, but generally are not any more secure than traditional locks. Many electronic locks are also combination locks. | ||
;[[Hybrid]] | ; [[Hybrid]] | ||
:Hybrid locks encompass combinations of all lock designs. Many modern high security locks are hybrid designs. | : Hybrid locks encompass combinations of all lock designs. Many modern high security locks are hybrid designs. | ||
;[[Lever]] | ; [[Lever]] | ||
: | : Uses flat metal tumblers (levers) with a gate. Lever locks range from low to high security. One of the oldest lock types, next to warded. | ||
;[[Pin_tumbler|Pin-tumbler]] | ; [[Pin_tumbler|Pin-tumbler]] | ||
: | : Uses moving pins to prevent rotation of the [[Plug|plug]]. Pin-tumbler locks range from low to high security. [[Dimple|dimple]] and [[Axial|axial/tubular]] locks are simply pin-tumblers with modified designs. Currently the most popular lock design worldwide. | ||
;[[Wafer]] | ; [[Wafer]] | ||
:Uses flat metal tumblers to prevent rotation of the plug. Wafer locks range from low to high security, with the vast majority of wafer locks being low security. | : Uses flat metal tumblers to prevent rotation of the plug. Wafer locks range from low to high security, with the vast majority of wafer locks being low security. | ||
;[[Warded]] | ; [[Warded]] | ||
: | : Uses internal wards to obstruct the rotation of incorrect keys. One of the oldest lock designs, but provides minimal security by modern standards. | ||
== Locking Bolt Mechanisms == | == Locking Bolt Mechanisms == | ||
:''See [[Bolt]] or [[Latch]].'' | |||
: | |||
== Compromise of Locks == | == Compromise of Locks == | ||
Security of locks can be compromised many ways, depending on the type, manufacturer and model, and the installation and maintenance details of a target lock. The practice of compromising locks | Security of locks can be compromised many ways, depending on the type, manufacturer and model, and the installation and maintenance details of a target lock. The practice of compromising locks as a hobby is known as [[Locksport|locksport]]. | ||
;[[Lockpicking]] | ;[[Lockpicking]] | ||
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== See also == | == See also == | ||
* [[Lockpicking]] | * [[Lockpicking]] | ||
* [[Locksmithing]] | * [[Locksmithing]] | ||
Revision as of 17:59, 9 January 2009
Locks
A lock is a device used to restrict access to an area or enclosure. It is the duty of the lock to restrict access until the correct key or combination is used to operate the lock. Locks are traditionally a combination of a cylinder and a bolt.
Modern locks may incorporate various digital access control features, such as biometrics. There several major types of locks with many modern high security locks being hybrid designs.
History
Add to me!
Lock Designs
- Combination
- A keyless lock that uses numbers, letters, or symbols for input. A specific combination of input properly aligns internal components so that the lock can be opened. Most commonly associated with safes or combination padlocks. Combination locks range from low to high security.
- Disc-detainer
- Uses flat metal tumblers that interface with a sidebar to prevent rotation of the plug. Separate from wafer designs because discs are usually rotated rather than lifted.
- Electronic
- A lock that is operated via electronic means. Electronic locks provide advanced auditing and key control capabilities, but generally are not any more secure than traditional locks. Many electronic locks are also combination locks.
- Hybrid
- Hybrid locks encompass combinations of all lock designs. Many modern high security locks are hybrid designs.
- Lever
- Uses flat metal tumblers (levers) with a gate. Lever locks range from low to high security. One of the oldest lock types, next to warded.
- Pin-tumbler
- Uses moving pins to prevent rotation of the plug. Pin-tumbler locks range from low to high security. dimple and axial/tubular locks are simply pin-tumblers with modified designs. Currently the most popular lock design worldwide.
- Wafer
- Uses flat metal tumblers to prevent rotation of the plug. Wafer locks range from low to high security, with the vast majority of wafer locks being low security.
- Warded
- Uses internal wards to obstruct the rotation of incorrect keys. One of the oldest lock designs, but provides minimal security by modern standards.
Locking Bolt Mechanisms
Compromise of Locks
Security of locks can be compromised many ways, depending on the type, manufacturer and model, and the installation and maintenance details of a target lock. The practice of compromising locks as a hobby is known as locksport.
- Lockpicking
- Internal components are manipulated to allow the lock to be opened.
- Bypass
- The non-cylinder portions of the lock are attacked, such as the locking bolt or the bolt actuator.
- Impressioning
- A working key is duplicated or internal components are manipulated to provide a working key.
- Decoding
- The proper position of internal components is decoded via the key or manipulation of components.
- Destructive Entry
- Destruction of the lock or surrounding materials, such as a door or wall.
