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Revision Date Username Comment
1305 Oct 2015 - 12:56NicLewis 
1222 Jul 2014 - 15:46ThomasMisa 
1122 Jul 2014 - 15:41ThomasMisa 
1003 Oct 2013 - 15:39norqu036? 
916 Apr 2013 - 08:45NicLewis 
815 Apr 2013 - 11:25NicLewis 
728 Mar 2013 - 09:18ThomasMisa 
612 Mar 2013 - 08:59NicLewis 
508 Mar 2013 - 07:58NicLewis 
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Access Control Facility (ACF)


ACF was a software security system developed at the University of Illinois by Barry Schrager and Eberhard Klemens. Designed to provide discretionary access control for IBM mainframe operating systems, such as OS/390 and z/OS), ACF was a competitor of IBM's RACF product, and provided the unique concepts of "Protection by Default" and resource pattern masking. After undergoing further development at SKK, Inc. at London Life Insurance in London, Ontario, ACF was renamed ACF2 in 1978 to distinguish it from the ACF prototype.(1)

In 1986, UCCEL Corporation bought SKK and ACF2, which Computer Associates International (CA Technologies) purchased in 1987. ACF2 continues to be sold as CA Technologies' CA ACF2.(2) ACF2 uses rule sets, which are algorithms that determine if a user is allowed to access data, or some other resource. An authorized user compiles these rule sets, which are translated into object records stored in a database. Logged-in users may then access data only if granted access through the stored rule sets.(3)


1 , 2 : http://en.wikipedia.org/wiki/ACF2

3 : lock ACF2 Mainframe Security PDF pp. 1-2. - Document discusses the security features of ACF2. (Login required)

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Topic revision: r6 - 12 Mar 2013 - 08:59:30 - NicLewis
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