Team Gallium

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Software
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Section: Application Domains

Software safety and security

A large part of our work on programming languages and tools focuses on improving the reliability of software. Functional programming and static type-checking contribute significantly to this goal. Because of its proximity with mathematical specifications, pure functional programming is well suited to program proof. Static typing detects programming errors early and prevents a number of popular security attacks: buffer overflows, executing network data as if it were code, etc. On the safety side, judicious uses of type abstraction and other encapsulation mechanisms allow static type checking to enforce program invariants. On the security side, the methods used in designing type systems and establishing their soundness are also applicable to the specification and automatic verification of some security policies such as non-interference for data confidentiality.


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