TY  - RPRT
AU  - Brucker, Achim D.
AU  - Rittinger, Frank
AU  - Wolff, Burkhart
PY  - 2002//
TI  - A CVS-Server Security Architecture ? Concepts and Formal Analysis
IS  - 182
PB  - Albert-Ludwigs-Universität Freiburg
KW  - security architecture, Concurrent Versions System (CVS), Z, formal methods, refinement
N2  - We present a secure architecture of a CVS-server, its implementation (i.e. mainly its configuration) and its formal analysis. Our CVS-server is uses cvsauth, that provides protection of passwords and protection of some internal data of the CVS repository. In contrast to other (security oriented) CVS-architectures, our approach allows the CVS-server run on an open filesystem, i.e. a filesystem where users can have direct access both by CVS-commands and by standard UNIX/POSIX commands such as mv. For our secure architecture of the CVS-server, we provide a formal specification and security analysys. The latter is based on a refinement mapping high-level security requirements on the architecture on low-level security mechanisms on the UNIX/POSIX filesystem level. The purpose of the formal analysis of the secure CVS-server architecture is twofold: First, it is the bases for the specification of mutual security properties such as non-repudiation, authentication and access control for this architecture. Second, the mapping of the architecture on standard security implementation technology is described. Thus, our approach can be seen as a method to give a formal underpinning for the usually tricky business of system administrators.
UR  - http://www.brucker.ch/bibliography/abstract/brucker.ea-cvs-server-2002-b
L1  - http://www.brucker.ch/bibliography/download/2002/cvs_arch.pdf
ID  - brucker.ea:cvs-server:2002-b
ER  -