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International Workshop on Numerical Software Verification

Working Conference on Verified Software: Theories, Tools, and Experiments

NSV 2020, VSTTE 2020: Software Verification pp 106–123Cite as

Verified Transformations and Hoare Logic: Beautiful Proofs for Ugly Assembly Language

Part of the Lecture Notes in Computer Science book series (LNPSE,volume 12549)

Abstract

Hand-optimized assembly language code is often difficult to formally verify. This paper combines Hoare logic with verified code transformations to make it easier to verify such code. This approach greatly simplifies existing proofs of highly optimized OpenSSL-based AES-GCM cryptographic code. Furthermore, applying various verified transformations to the AES-GCM code enables additional platform-specific performance improvements.

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Notes

  1. 1.

    https://github.com/project-everest/hacl-star/tree/_vale_unstructured/vale.

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Acknowledgements

We thank the anonymous reviewers for valuable feedback. Work at Carnegie Mellon University was supported in part by the Department of the Navy, Office of Naval Research under Grant No. N00014-18-1-2892, and grants from the Intel Corporation and the Alfred P. Sloan Foundation.

Author information

Authors and Affiliations

  1. Carnegie Mellon University, Pittsburgh, USA

    Jay Bosamiya & Bryan Parno

  2. Massachusetts Institute of Technology, Cambridge, USA

    Sydney Gibson

  3. University of Pennsylvania, Philadelphia, USA

    Yao Li

  4. Microsoft Research, Redmond, USA

    Chris Hawblitzel

Authors
  1. Jay Bosamiya
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  2. Sydney Gibson
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  3. Yao Li
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  4. Bryan Parno
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  5. Chris Hawblitzel
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Corresponding author

Correspondence to Jay Bosamiya .

Editor information

Editors and Affiliations

  1. MPI-SWS Kaiserslautern, Kaiserslautern, Germany

    Maria Christakis

  2. University of California, San Diego, La Jolla, CA, USA

    Nadia Polikarpova

  3. Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

    Parasara Sridhar Duggirala

  4. Engineering and Informatics, University of Sussex, Brighton, UK

    Dr. Peter Schrammel

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Bosamiya, J., Gibson, S., Li, Y., Parno, B., Hawblitzel, C. (2020). Verified Transformations and Hoare Logic: Beautiful Proofs for Ugly Assembly Language. In: Christakis, M., Polikarpova, N., Duggirala, P.S., Schrammel, P. (eds) Software Verification. NSV VSTTE 2020 2020. Lecture Notes in Computer Science(), vol 12549. Springer, Cham. https://doi.org/10.1007/978-3-030-63618-0_7

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  • DOI: https://doi.org/10.1007/978-3-030-63618-0_7

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-63617-3

  • Online ISBN: 978-3-030-63618-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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