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calculate MainPod id in a dynamic-friendly way (#241)

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* calculate MainPod id in a dynamic-friendly way

The MainPod id is now calculated with front padding and a fixed size
independent of max_public_statements so that introduction gadgets can be
verified by a MainPod while paying only for the number of statements
they use.  This is because with front padding of none-statements we can
precompute the poseidon state corresponding to absorbing all the padding
statements and only pay constraints for the non-padding statements.

The id is calculated as follows:
`id = hash(serialize(reverse(statements || none-statements)))`

* fix test
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Eduard S. 2025-05-23 10:12:28 +02:00 • committed by GitHub
parent 82481e88d7
commit d3fef8392e
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6 changed files with 245 additions and 26 deletions
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src/frontend/mod.rs
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@ -940,7 +940,7 @@ pub mod tests {
#[test]
fn test_front_great_boy() -> Result<()> {
let great_boy = great_boy_pod_full_flow()?;
let (_, great_boy) = great_boy_pod_full_flow()?;
println!("{}", great_boy);
// TODO: prove great_boy with MockProver and print it