A Note on the Confinement Problem

This note explores the problem of confining
a program during its execution so that it cannot 
transmit information to any other program except its
caller.  A set of examples attempts to stake out 
the boundaries of the problem.  Necessary conditions
for a solution are stated and informally justified.

CACM October, 1973

Lampson, B. W.

protection, confinement, proprietary program,
privacy, security, leakage of data

2.11 4.30

CA731004 JB January 20, 1978  11:41 AM

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