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This was a mechanical type of lock operated by a plastic key card with a pattern of holes. There were 32 positions for possible hole locations, giving approximately 4.3 billion different keys. The key could easily be changed for each new guest by inserting a new key template in the lock that matched the new key. [2]
VingCard Elsafe, whose origin was in Moss, Norway, is an international producer of hotel locking systems, electronic in-room safes and energy management systems.After inventing the first mechanical hole card operated lock in 1976, VingCard was acquired in 1994 by ASSA ABLOY, and merged with the electronic safe producer Elsafe to form VingCard Elsafe in 2006.
Lock and key. A typical modern padlock and its keys. A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID card, security token or coin), by supplying secret information (such as a number or letter permutation or password ), by a combination thereof, or it may only ...
A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.
Symmetric-key algorithms[ a] are algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys may be identical, or there may be a simple transformation to go between the two keys. [ 1] The keys, in practice, represent a shared secret between two or more parties ...
Key pattern is the generic term for an interlocking geometric motif made from straight lines or bars that intersect to form rectilinear spiral shapes. [1] [2] [3] According to Allen and Anderson, the negative space between the lines or bars of a key pattern “resemb [es] the L- or T-shaped slots in an ordinary key to allow it to pass the wards ...
Tor Sørnes was born in Sola, Rogaland county, Norway as a son of inventor, radio technician and clockmaker Rasmus Sørnes. Being the son of an inventor, Tor Sørnes occupied himself with technical matters already as a child. In 1950 he was employed a production planner at steel and ironware factory Christiania Staal & Jernvarefabrikk in Moss ...
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