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Added constant_time_select array and entry_from_table #1660

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merged 1 commit into from
Jun 25, 2024

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dkostic
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@dkostic dkostic commented Jun 24, 2024

Issues:

N/A

Description of changes:

Added constant_time_select array and entry_from_table.

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Point out areas that need special attention or support during the review process. Discuss architecture or design changes.

Testing:

How is this change tested (unit tests, fuzz tests, etc.)? Are there any testing steps to be verified by the reviewer?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

@dkostic dkostic requested a review from a team as a code owner June 24, 2024 18:22
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.22%. Comparing base (4368aaa) to head (ce72d0c).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1660      +/-   ##
==========================================
- Coverage   78.22%   78.22%   -0.01%     
==========================================
  Files         566      566              
  Lines       95165    95183      +18     
  Branches    13661    13663       +2     
==========================================
+ Hits        74442    74453      +11     
- Misses      20127    20136       +9     
+ Partials      596      594       -2     

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I'm guessing this is to be used with C code, right?

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dkostic commented Jun 25, 2024

I'm guessing this is to be used with C code, right?

yes, I plan to use the new function in EC scalar multiplication implementation to select points from precomputed table in constant time.

@dkostic dkostic merged commit a6f7dc3 into aws:main Jun 25, 2024
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@dkostic dkostic deleted the ct-select-additions branch June 25, 2024 21:40
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5 participants