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add compile-time use_poseidon flag for SSZ hasher selection #522

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add compile-time use_poseidon flag for SSZ hasher selection #522

chetanyb wants to merge 7 commits into from
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@chetanyb chetanyb commented Jan 25, 2026

Summary

  • Add -Duse_poseidon build flag to switch SSZ hasher from SHA256 to Poseidon (default: false)
  • Bump ssz.zig to v0.0.9

Usage

zig build -Doptimize=ReleaseFast -Dgit_version="$(git rev-parse --short HEAD)" # uses SHA256 (default)
zig build -Doptimize=ReleaseFast -Dgit_version="$(git rev-parse --short HEAD)" -Duse_poseidon=true  # uses Poseidon

@chetanyb chetanyb mentioned this pull request Jan 25, 2026
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anshalshukla
anshalshukla approved these changes Jan 27, 2026
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lgtm

@g11tech g11tech changed the title Add compile-time use_poseidon flag for SSZ hasher selection add compile-time use_poseidon flag for SSZ hasher selection Jan 27, 2026
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@anshalshukla anshalshukla anshalshukla approved these changes

@ch4r10t33r ch4r10t33r Awaiting requested review from ch4r10t33r

@g11tech g11tech Awaiting requested review from g11tech

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@chetanyb @anshalshukla