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Xin,Gao 8d4a8eb238 SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
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ADT_AC.thy SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
Access.thy SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
Arch_AC.thy SELFOUR-421: merge and fix up to ArmConfidentiality proof 2016-09-22 19:21:56 +10:00
CNode_AC.thy SELFOUR-421: merge and fix up to ArmConfidentiality proof 2016-09-22 19:21:56 +10:00
Deterministic_AC.thy Fix Access, InfoFlow and DRefine. 2014-08-13 16:45:40 +10:00
DomainSepInv.thy SELFOUR-421: merge and fix up to ArmConfidentiality proof 2016-09-22 19:21:56 +10:00
Dpolicy.thy SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
ExampleSystem.thy arch_split: requalify abstract theories 2016-04-27 18:46:16 +10:00
Finalise_AC.thy SELFOUR-421: merge and fix up to ArmConfidentiality proof 2016-09-22 19:21:56 +10:00
Interrupt_AC.thy arch_split: requalify abstract theories 2016-04-27 18:46:16 +10:00
Ipc_AC.thy SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
README.md misc: Proofing and formatting of README.md files. 2014-07-28 13:15:48 +10:00
Retype_AC.thy SELFOUR-421: fix coding style 2016-09-22 19:23:28 +10:00
Syscall_AC.thy SELFOUR-421: merge and fix up to ArmConfidentiality proof 2016-09-22 19:21:56 +10:00
Tcb_AC.thy arch-split: Tcb_AI.thy done 2016-07-07 13:57:16 +10:00

README.md

Access Control Proof

This proof establishes that seL4 enforces the security properties of authority confinement and integrity. These are essential correctness properties of its capability-based access control system: authority confinement means that authority propagates only in accordance with capabilities, and integrity means that data cannot be modified without possession of an appropriate write capability to the data. These properties and proofs are described in detail in an ITP 2011 paper. These properties are phrased over seL4's abstract specification and this proof builds on top of the Abstract Spec Invariant Proof.

Building

To build from the l4v/ directory, run:

./isabelle/bin/isabelle build -d . -v -b Access

Important Theories

The top-level theory where these two properties are proved for the kernel is Syscall_AC; the bottom-level theory where the properties are defined is Access.