Faceted execution of policy-agnostic programs
Faceted execution of policy-agnostic programs
复制标题
与政策无关的程序的分面执行
DOI:
10.1145/2465106.2465121
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Armando Solar
中科院分区:
文献类型:
--
作者:
Thomas H. Austin;Jean Yang;C. Flanagan;Armando Solar
It is important for applications to protect sensitive data. Even for simple confidentiality and integrity policies, it is often difficult for programmers to reason about how the policies should interact and how to enforce policies across the program. A promising approach is policy-agnostic programming, a model that allows the programmer to implement policies separately from core functionality. Yang et al. describe Jeeves, a programming language that supports information flow policies describing how to reveal sensitive values in different output channels. Jeeves uses symbolic evaluation and constraint-solving to produce outputs adhering to the policies. This strategy provides strong confidentiality guarantees but limits expressiveness and implementation feasibility.
We extend Jeeves with faceted values, which exploit the structure of sensitive values to yield both greater expressiveness and to facilitate reasoning about runtime behavior. We present a faceted semantics for Jeeves and describe a model for propagating multiple views of sensitive information through a program. We provide a proof of termination-insensitive non-interference and describe how the semantics facilitate reasoning about program behavior.
DOI:
10.1145/1111037.1111045
发表时间:
2006-01
期刊:
--
影响因子:
--
作者:
Sebastian Hunt;David Sands
通讯作者:
Sebastian Hunt;David Sands