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ark-zkey

Crates.io

Library to read zkey faster by serializing to arkworks friendly format.

See zkmopro/mopro#25 for context.

How to use

Run the following to convert a zkey to an arkzkey. This should be done as a pre-processing step.

cargo run --bin arkzkey-util --release -- ./test-vectors/keccak256_256_test_final.zkey

This will generate and place an arkzkey file in the same directory as the original zkey.

You can also install it locally:

cargo install --bin arkzkey-util --path .

Tests

cargo test multiplier2 --release -- --nocapture
cargo test keccak256 --release -- --nocapture
cargo test rsa --release -- --nocapture

Benchmark (Keccak)

cargo test keccak256 --release -- --nocapture

running 1 test
Reading zkey from: ./test-vectors/keccak256_256_test_final.zkey
Time to read zkey: 101.761584ms
Serializing proving key and constraint matrices
Time to serialize proving key and constraint matrices: 42ns
[build] Writing arkzkey to: ./test-vectors/keccak256_256_test_final.arkzkey
[build] Time to write arkzkey: 9.048011125s
Reading arkzkey from: ./test-vectors/keccak256_256_test_final.arkzkey
Time to open arkzkey file: 40.875µs
Time to mmap arkzkey: 14.541µs
Time to deserialize proving key: 9.050112917s
Time to deserialize matrices: 26.763958ms
Time to read arkzkey: 9.077114958s
test tests::test_keccak256_serialization_deserialization ... ok
circuits zkey ark-zkey
multiplier 3 KB 1KB
keccak256 81.1 MB 49.5 MB
rsa 134.9 MB 97.8 MB

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Apache-2.0, MIT licenses found

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