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Add sancus_untag functions and fix sancus_unwrap_with_key #37

Merged
merged 5 commits into from
Oct 20, 2021
Merged

Add sancus_untag functions and fix sancus_unwrap_with_key #37

merged 5 commits into from
Oct 20, 2021

Commits on Oct 15, 2021

  1. add constant time comparison function

    @gianlu33
    gianlu33 committed Oct 15, 2021
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  2. move sancus_tag functions up, add sancus_untag functions 

    I changed the order of these functions so that we could call 
`sancus_untag_with_key` inside sancus_`unwrap_with_key`. To do so, the 
former needs to be declared before the latter
    @gianlu33
    gianlu33 committed Oct 15, 2021
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  3. add check on cipher_len inside sancus_unwrap_with_key 

    Normally, `sancus_unwrap_with_key` always fails if cipher_len is zero. 
This commit solves this issue by leveraging `sancus_untag_with_key`
    @gianlu33
    gianlu33 committed Oct 15, 2021
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Commits on Oct 20, 2021

  1. Apply suggestions from code review

    @jovanbulck
    jovanbulck authored Oct 20, 2021
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  2. Update src/sancus_support/sm_support.h

    @jovanbulck
    jovanbulck authored Oct 20, 2021
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