Algorithm Luna (born. Luhn algorithm) for PHP

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Uploaded: 10.11.2011
Content: mc.1.6.0-alpha5.zip (702,36 kB)

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The script is written in PHP. Implemented in a single file in Whom we also contains an example from reliance
Algorithm Luna (born. Luhn algorithm) - algorithm for calculating the check digit number of plastic cards in accordance with ISO / IEC 7812. It is not a cryptographic tool designed algorithm in the first place - the identification of errors caused by unintentional corruption of data (for example, when manually entering numbers card when receiving data on the social security number over the phone). It allows only with a certain degree of credibility to judge the absence of errors in a block of numbers, but does not allow the localization and correction of inaccuracies.
The algorithm developed by an employee of IBM Hans Peter Loong, is described in the US in 1954, he obtained a patent in 1960.
The most common use for calculating the check digit:
Numbers of all bank cards
Non some discount cards
Social Security Codes
IMEI-codes.
At present, the content of the algorithm is public domain.

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