BIB-VERSION:: CS-TR-v2.0 ID:: ncstrl.dartmouthcs//TR88-136 ENTRY:: January 20, 1995 ORGANIZATION:: Dartmouth College, Computer Science TITLE:: The Sharing of Rights and Information in a Capability-Based Protection System TYPE:: Technical Report (paper) REVISION:: 1 AUTHOR:: Bishop, Matt NOTE:: The 'January' in DATE is an arbitrary placeholder. DATE:: January 1988 RETRIEVAL:: For a paper copy, email RETRIEVAL:: For a paper copy, write to Technical Report Librarian Department of Computer Science Dartmouth College 6211 Sudikoff Laboratory Hanover, NH 03755-3510 USA RETRIEVAL:: PDF at http://www.cs.dartmouth.edu/reports/TR88-136.pdf ABSTRACT:: The paper examines the question of sharing of rights and information in the Take-Grant Protection Model by concentrating on the similarities between the two; in order to do this, we state and prove new theorems for each that specifically show the similarities. The proof for one of the original theorems is also provided. These statements of necessary and sufficient conditions are contrasted to illustrate the proposition that transferring rights and transferring information are fundamentally the same, as one would expect in a capability-based system. We then discuss directions for future research in light of these results. END:: ncstrl.dartmouthcs//TR88-136