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feat: remove note hash nullifier counter. (#7294)
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42 changes: 42 additions & 0 deletions
42
.../noir-protocol-circuits/crates/private-kernel-lib/src/components/reset_output_composer.nr
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| mod squash_transient_data; | ||
|
|
||
| use crate::components::reset_output_composer::squash_transient_data::squash_transient_data; | ||
| use dep::types::{ | ||
| abis::{ | ||
| kernel_circuit_public_inputs::PrivateKernelCircuitPublicInputs, log_hash::NoteLogHash, | ||
| note_hash::ScopedNoteHash, nullifier::ScopedNullifier | ||
| }, | ||
| constants::{MAX_NOTE_ENCRYPTED_LOGS_PER_TX, MAX_NOTE_HASHES_PER_TX, MAX_NULLIFIERS_PER_TX} | ||
| }; | ||
|
|
||
| struct PrivateKernelResetOutputs { | ||
| note_hashes: [ScopedNoteHash; MAX_NOTE_HASHES_PER_TX], | ||
| nullifiers: [ScopedNullifier; MAX_NULLIFIERS_PER_TX], | ||
| note_encrypted_log_hashes: [NoteLogHash; MAX_NOTE_ENCRYPTED_LOGS_PER_TX], | ||
| } | ||
|
|
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| struct ResetOutputComposer { | ||
| output: PrivateKernelResetOutputs, | ||
| } | ||
|
|
||
| impl ResetOutputComposer { | ||
| pub fn new( | ||
| previous_kernel: PrivateKernelCircuitPublicInputs, | ||
| transient_nullifier_indexes_for_note_hashes: [u32; MAX_NOTE_HASHES_PER_TX], | ||
| transient_note_hash_indexes_for_nullifiers: [u32; MAX_NULLIFIERS_PER_TX] | ||
| ) -> Self { | ||
| let (note_hashes, nullifiers, note_encrypted_log_hashes) = squash_transient_data( | ||
| previous_kernel.end.note_hashes, | ||
| previous_kernel.end.nullifiers, | ||
| previous_kernel.end.note_encrypted_logs_hashes, | ||
| transient_nullifier_indexes_for_note_hashes, | ||
| transient_note_hash_indexes_for_nullifiers | ||
| ); | ||
| let output = PrivateKernelResetOutputs { note_hashes, nullifiers, note_encrypted_log_hashes }; | ||
| ResetOutputComposer { output } | ||
| } | ||
|
|
||
| pub fn finish(self) -> PrivateKernelResetOutputs { | ||
| self.output | ||
| } | ||
| } |
34 changes: 34 additions & 0 deletions
34
...s/crates/private-kernel-lib/src/components/reset_output_composer/squash_transient_data.nr
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| use dep::types::abis::{note_hash::ScopedNoteHash, nullifier::ScopedNullifier, log_hash::NoteLogHash}; | ||
|
|
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| unconstrained pub fn squash_transient_data<M, N, P>( | ||
| note_hashes: [ScopedNoteHash; M], | ||
| nullifiers: [ScopedNullifier; N], | ||
| logs: [NoteLogHash; P], | ||
| transient_nullifier_indexes_for_note_hashes: [u32; M], | ||
| transient_note_hash_indexes_for_nullifiers: [u32; N] | ||
| ) -> ([ScopedNoteHash; M], [ScopedNullifier; N], [NoteLogHash; P]) { | ||
| let mut propagated_note_hashes = BoundedVec::new(); | ||
| for i in 0..note_hashes.len() { | ||
| if transient_nullifier_indexes_for_note_hashes[i] == N { | ||
| propagated_note_hashes.push(note_hashes[i]); | ||
| } | ||
| } | ||
|
|
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| let mut propagated_nullifiers = BoundedVec::new(); | ||
| for i in 0..N { | ||
| if transient_note_hash_indexes_for_nullifiers[i] == M { | ||
| propagated_nullifiers.push(nullifiers[i]); | ||
| } | ||
| } | ||
|
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| let mut propagated_logs = BoundedVec::new(); | ||
| for i in 0..logs.len() { | ||
| let log = logs[i]; | ||
| let linked_note_hash_propagated = propagated_note_hashes.storage.any(|n: ScopedNoteHash| (n.counter() == log.note_hash_counter)); | ||
| if linked_note_hash_propagated { | ||
| propagated_logs.push(log); | ||
| } | ||
| } | ||
|
|
||
| (propagated_note_hashes.storage, propagated_nullifiers.storage, propagated_logs.storage) | ||
| } |
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