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How Emily Tamed the Caml

Stiegler, Marc; Miller, Mark


Keyword(s): security; programming; performance

Abstract: How does one make a program breach resistant? One promising approach is to apply the Principle of Least Authority at object granularity. The E language has previously demonstrated that object-capability languages turn many of the security requirements for software into emergent properties of traditional object-oriented design and modularity enforcement. Emily is a subset of OCaml that uses a design rule verifier to enforce object-capability principles. It demonstrates how memory-safe languages can be transformed into breach-resistant object-capability systems with little loss of either expressivity or performance.

16 Pages

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