Dynamically Typed Assembly Language (D-TAL) is not only a lightweight and effective solution to the gap generated by the drop in security produced by the translation of high-level language instructions to low-level language instructions, but it considerably eases up the burden generated by the level of complexity required to implement typed assembly languages statically. Although there are tradeoffs between the static and dynamic approaches, focusing on a dynamic approach leads to simpler, easier to reason about, and more feasible ways to understand deployment of types over monomorphically-typed or untyped intermediate languages. On this occasion, DISM, a simple but powerful and mature untyped assembly language, is extended by the addition of type annotations (on memory and registers) to produce an instance of D-TAL. Strong-DISM, the resulting language, statically, lends itself to simpler analysis about type access and security as the correlation between datatypes and instructions with their respective memory and registers becomes simpler to observe; while dynamically, it disallows operations and further eliminates conditions that from high level languages could be used to violate/circumvent security.
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|Commitee:||Liu, Yao, Ou, Xinming Simon|
|School:||University of South Florida|
|Department:||Computer Science and Engineering|
|School Location:||United States -- Florida|
|Source:||MAI 57/01M(E), Masters Abstracts International|
|Subjects:||Computer Engineering, Computer science|
|Keywords:||Compilers and interpreters, Computer security, Proof-carrying code, Static and dynamic languages, Typed assembly language, Typing theory|
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