!!! Overview[1]
[{$pagename}] is an [HMAC-based One Time Password Algorithm|HMAC-based One-Time Password Algorithm]. It is a cornerstone of Initiative For Open Authentication [Initiative for Open Authentication].

[{$pagename}] was published as an [informational] [RFC 4226] in December [2005|Year 2005], documenting the [algorithm] along with a [Java] implementation. 

Since then, the [{$pagename}] algorithm has been adopted by many companies worldwide. 

The [{$pagename}] algorithm is a freely available open standard.

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [HMAC-based One Time Password algorithm|https://en.wikipedia.org/wiki/HMAC-based_One-time_Password_Algorithm|target='_blank'] - based on 2015-02-12.