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Add Proof of Work #75

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Add Proof of Work #75

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tsunrise
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@tsunrise tsunrise commented Oct 8, 2021 •
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Description

Add Cryptographic hash function trait, and proof of work.

closes: #74

blocking: arkworks-rs/bcs#2 (currently is a private repo)

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

  • Targeted PR against correct branch (main)
  • Linked to Github issue with discussion and accepted design OR have an explanation in the PR that describes this work.
  • Wrote unit tests
  • Updated relevant documentation in the code
  • Added a relevant changelog entry to the Pending section in CHANGELOG.md
  • Re-reviewed Files changed in the Github PR explorer

Pratyush
Pratyush reviewed Oct 12, 2021
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Pratyush
Pratyush reviewed Oct 12, 2021
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src/pow/mod.rs Outdated
Comment on lines 14 to 18
/// - **Preimage Resistance**: For all adversary, given y = H(x) where x is
/// random, the probability to find z such that H(z) = y is negligible.
/// - **Collision Resistant**: It's computationally infeasible to find two
/// distinct inputs to lead to same output. This property is also satisfied by
/// CRH trait implementors.
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We also require one-way-ness.

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Sorry if I remembered incorrectly, but isn't Preimage resistance => one-way-ness?

@tsunrise tsunrise marked this pull request as ready for review October 14, 2021 05:54
@mmaker
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mmaker commented Oct 27, 2024 •
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For the record, in nimue we do have excellent PoW support from Remco and Giacomo.
https://github.com/arkworks-rs/nimue

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@Pratyush Pratyush Pratyush approved these changes

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Add Proof of Work
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@tsunrise @mmaker @Pratyush @ValarDragon