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Week 12 Update 12.1

This week I got prelimanry results on the benchmarks of the Poseidon hash function. These results can be accessed here:

These benchmarks can be reproduced by forking and running cargo bench on this repository.

The following steps for Week 13 are the following.

  1. The comparisons executed in the preliminary results shown above are unfair. For example, Poseidon with the babybear field only requires 32 bits for each field element while for the scalar field of BLS12-381 each element requires 256 bits. I will be preparing new figures that account for that disparity.
  2. Prepare benchmarks for different widths of the sponge function.
  3. Add memory requirements using the crate dhat.

After finishing these steps, all benchmark results will be included in the repository of the project. After that, and up until the end of the program, I will start documenting everything in the form of an academic paper.

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Marcos Villagra
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Final Dev Update

Precompile contracts

Nov 6, 2023
Week 14 Update 14.1

This is the first week since the start of the program that I slowed down a bit. I spent the week rereading the yellow paper to make a proposal of the gas cost of a potential Poseidon precompile.

Oct 23, 2023
Week 13 Update 13.1

During this week I completed all the benchmarks I was planning to do. I found some errors in the previous benchmark I coded using criterion and I spent time this week correcting those errors and running the new benchmarks.

Oct 16, 2023
Week 11 Update 11.1

During this week I spend most of my time trying to make the Cryptoexperts Poseidon permutation work. Let us recall that the Cryptoexperts instantiation of Poseidon is written in C language. Hence, this required to make a C interface from Rust.

Oct 2, 2023
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