Editing RC6 (section)

==Licensing==
As RC6 was not selected for the [[Advanced Encryption Standard|AES]], it was not guaranteed that RC6 is royalty-free. {{As of|2017|1}}, a web page on the official web site of the designers of RC6, RSA Laboratories, states the following:<ref>{{cite web
| url=https://www.emc.com/emc-plus/rsa-labs/standards-initiatives/rc5-and-rc6.htm
| title=3.6.4 What are RC5 and RC6?
| publisher=[[RSA Laboratories]]
| archive-url=https://web.archive.org/web/20170706114310/https://www.emc.com/emc-plus/rsa-labs/standards-initiatives/rc5-and-rc6.htm
| archive-date=2017-07-06
| access-date=2015-08-02}}</ref>

:"We emphasize that ''if'' RC6 is selected for the AES, RSA Security will ''not'' require any licensing or royalty payments for products using the algorithm".

The emphasis on the word "if" suggests that RSA Security Inc. may have required licensing and royalty payments for any products using the RC6 algorithm. RC6 was a patented encryption algorithm ({{US patent|5724428}} and {{US patent|5835600}}); however, the patents expired between 2015 and 2017.