ed255/pod2
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Integrate recursion into MainPod (#243)

Browse source 
* 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)))`

* add time feature and disable timing by default

* apply suggestions from @arnaucube

* link issues in todos
This commit is contained in:
Eduard S. 2025-05-29 17:10:19 +02:00 • committed by GitHub
parent d3fef8392e
commit 88a75986b8
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
23 changed files with 1405 additions and 729 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/backends/plonky2/signedpod.rs
View file

@ -15,7 +15,7 @@ use crate::{
constants::MAX_DEPTH,
middleware::{
containers::Dictionary, AnchoredKey, DynError, Hash, Key, Params, Pod, PodId, PodSigner,
PodType, RawValue, Statement, Value, KEY_SIGNER, KEY_TYPE,
PodType, RawValue, Statement, Value, KEY_SIGNER, KEY_TYPE, SELF,
},
};
@ -120,6 +120,9 @@ impl SignedPod {
}
impl Pod for SignedPod {
fn params(&self) -> &Params {
panic!("SignedPod doesn't have params");
}
fn verify(&self) -> Result<(), Box<DynError>> {
Ok(self._verify().map_err(Box::new)?)
}
@ -128,8 +131,7 @@ impl Pod for SignedPod {
self.id
}
fn pub_statements(&self) -> Vec<Statement> {
let id = self.id();
fn pub_self_statements(&self) -> Vec<Statement> {
// By convention we put the KEY_TYPE first and KEY_SIGNER second
let mut kvs: HashMap<Key, Value> = self.dict.kvs().clone();
let key_type = Key::from(KEY_TYPE);
@ -139,7 +141,7 @@ impl Pod for SignedPod {
[(key_type, value_type), (key_signer, value_signer)]
.into_iter()
.chain(kvs.into_iter().sorted_by_key(|kv| kv.0.hash()))
.map(|(k, v)| Statement::ValueOf(AnchoredKey::from((id, k)), v))
.map(|(k, v)| Statement::ValueOf(AnchoredKey::from((SELF, k)), v))
.collect()
}