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zkapp.rs
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zkapp.rs
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use std::{cell::RefCell, rc::Rc};
use ark_ff::{BigInteger256, Zero};
use kimchi::proof::PointEvaluations;
use mina_curves::pasta::Fq;
use mina_hasher::Fp;
use mina_p2p_messages::v2;
use crate::{
hash_with_kimchi,
proofs::{
constants::{
make_step_zkapp_data, StepMergeProof, StepZkappOptSignedOptSignedProof,
WrapZkappOptSignedProof, WrapZkappProof,
},
field::{Boolean, CircuitVar, FieldWitness, ToBoolean},
merge::{generate_merge_proof, MergeParams},
public_input::{messages::MessagesForNextWrapProof, prepared_statement::DeferredValues},
step::{
extract_recursion_challenges, step, InductiveRule, OptFlag, PreviousProofStatement,
StepParams, StepProof,
},
transaction::ReducedMessagesForNextStepProof,
unfinalized::{AllEvals, EvalsWithPublicInput},
verification::prev_evals_to_p2p,
verifier_index::make_zkapp_verifier_index,
wrap::{self, WrapParams, WrapProofState, WrapStatement},
zkapp::group::{State, ZkappCommandIntermediateState},
},
scan_state::{
currency::{Amount, Index, Signed, Slot},
fee_excess::FeeExcess,
pending_coinbase::{self, Stack, StackState},
scan_state::transaction_snark::{Registers, SokDigest, SokMessage, Statement},
transaction_logic::{
local_state::{
LocalState, LocalStateEnv, LocalStateSkeleton, StackFrame, StackFrameChecked,
},
protocol_state::{protocol_state_body_view, GlobalState, GlobalStateSkeleton},
zkapp_command::{
AccountUpdate, CallForest, Control, WithHash, ZkAppCommand,
ACCOUNT_UPDATE_CONS_HASH_PARAM,
},
zkapp_statement::{TransactionCommitment, ZkappStatement},
TransactionFailure,
},
},
sparse_ledger::SparseLedger,
zkapps::{
snark::ZkappSnark,
zkapp_logic::{self, ApplyZkappParams},
},
AccountId, ControlTag, ToInputs, TokenId,
};
use self::group::SegmentBasic;
use super::{
constants::{
ForWrapData, ProofConstants, StepZkappOptSignedProof, StepZkappProvedProof,
WrapZkappProvedProof,
},
field::GroupAffine,
numbers::{
currency::{CheckedAmount, CheckedSigned},
nat::{CheckedIndex, CheckedSlot},
},
to_field_elements::ToFieldElements,
transaction::{dummy_constraints, Check, ProofError, Prover},
witness::Witness,
wrap::WrapProof,
};
pub struct ZkappParams<'a> {
pub statement: &'a v2::MinaStateBlockchainStateValueStableV2LedgerProofStatement,
pub tx_witness: &'a v2::TransactionWitnessStableV2,
pub message: &'a SokMessage,
pub step_opt_signed_opt_signed_prover: &'a Prover<Fp>,
pub step_opt_signed_prover: &'a Prover<Fp>,
pub step_proof_prover: &'a Prover<Fp>,
pub merge_step_prover: &'a Prover<Fp>,
pub tx_wrap_prover: &'a Prover<Fq>,
/// For debugging only
pub opt_signed_path: Option<&'a str>,
/// For debugging only
pub proved_path: Option<&'a str>,
}
pub mod group {
use super::*;
use crate::scan_state::transaction_logic::zkapp_command::{AccountUpdate, Control};
#[derive(Debug)]
pub enum SegmentBasic {
OptSignedOptSigned,
OptSigned,
Proved,
}
impl SegmentBasic {
pub fn of_controls(controls: &[&Control]) -> Self {
use Control::{NoneGiven, Proof, Signature};
match controls {
[Proof(_)] => Self::Proved,
[Signature(_) | NoneGiven] => Self::OptSigned,
[Signature(_) | NoneGiven, Signature(_) | NoneGiven] => Self::OptSignedOptSigned,
_ => panic!("Unsupported combination"),
}
}
}
#[derive(Debug)]
pub enum Kind {
New,
Same,
TwoNew,
}
#[derive(Debug)]
pub struct State<GlobalState, LocalState> {
pub global: GlobalState,
pub local: LocalState,
}
#[derive(Debug)]
pub struct ZkappCommandIntermediateState<GlobalState, LocalState, ConnectingLedgerHash> {
pub kind: Kind,
pub spec: SegmentBasic,
pub state_before: State<GlobalState, LocalState>,
pub state_after: State<GlobalState, LocalState>,
pub connecting_ledger: ConnectingLedgerHash,
}
fn intermediate_state<GlobalState, LocalState, ConnectingLedgerHash>(
kind: Kind,
spec: SegmentBasic,
before: &(GlobalState, LocalState, ConnectingLedgerHash),
after: &(GlobalState, LocalState, ConnectingLedgerHash),
) -> ZkappCommandIntermediateState<GlobalState, LocalState, ConnectingLedgerHash>
where
GlobalState: Clone,
LocalState: Clone,
ConnectingLedgerHash: Clone,
{
let (global_before, local_before, _) = before;
let (global_after, local_after, connecting_ledger) = after;
ZkappCommandIntermediateState {
kind,
spec,
state_before: State {
global: global_before.clone(),
local: local_before.clone(),
},
state_after: State {
global: global_after.clone(),
local: local_after.clone(),
},
connecting_ledger: connecting_ledger.clone(),
}
}
// Note: Unlike OCaml, the returned value (the list) is not reversed, but we keep the same method name
pub fn group_by_zkapp_command_rev<GlobalState, LocalState, ConnectingLedgerHash>(
zkapp_command: Vec<&ZkAppCommand>,
stmtss: Vec<Vec<(GlobalState, LocalState, ConnectingLedgerHash)>>,
) -> Vec<ZkappCommandIntermediateState<GlobalState, LocalState, ConnectingLedgerHash>>
where
GlobalState: Clone,
LocalState: Clone,
ConnectingLedgerHash: Clone,
{
let mut zkapp_account_updatess = zkapp_command
.iter()
.map(|zkapp_command| zkapp_command.all_account_updates_list())
.collect::<Vec<_>>();
zkapp_account_updatess.insert(0, vec![]);
let mut acc = Vec::<
ZkappCommandIntermediateState<GlobalState, LocalState, ConnectingLedgerHash>,
>::with_capacity(32);
// Convert to slices, to allow matching below
let zkapp_account_updatess = zkapp_account_updatess
.iter()
.map(|v| v.as_slice())
.collect::<Vec<_>>();
let stmtss = stmtss.iter().map(|v| v.as_slice()).collect::<Vec<_>>();
#[rustfmt::skip]
fn group_by_zkapp_command_rev_impl<G, L, C>(
zkapp_commands: &[&[AccountUpdate]],
stmtss: &[&[(G, L, C)]],
acc: &mut Vec<ZkappCommandIntermediateState<G, L, C>>,
)
where
G: Clone,
L: Clone,
C: Clone,
{
use Kind::{New, Same, TwoNew};
use Control::{Proof, Signature, NoneGiven};
let to_spec = |c: &Control| SegmentBasic::of_controls(&[c]);
let to_specs = |c1: &Control, c2: &Control| SegmentBasic::of_controls(&[c1, c2]);
fn prepend<'a, T: ?Sized>(value: &'a T, list: &[&'a T]) -> Vec<&'a T> {
// `T` here is actually a slice
let mut new_list = Vec::with_capacity(list.len() + 1);
new_list.push(value);
new_list.extend(list);
new_list
}
// I don't take responsability for this code, see OCaml comments
// https://github.com/MinaProtocol/mina/blob/78535ae3a73e0e90c5f66155365a934a15535779/src/lib/mina_base/zkapp_command.ml#L1590
match (zkapp_commands, stmtss) {
([] | [[]], [ _ ]) => {
// eprintln!("GROUP 1");
return;
},
([[ AccountUpdate { authorization: a1, .. } ]], [[ before, after ]]) => {
// eprintln!("GROUP 2");
acc.push(intermediate_state(Same, to_spec(a1), before, after));
}
([[], [AccountUpdate { authorization: a1, .. }]], [[ _ ], [ before, after ]]) => {
// eprintln!("GROUP 3");
acc.push(intermediate_state(New, to_spec(a1), before, after));
}
([[AccountUpdate { authorization: a1 @ Proof(_), .. }, zkapp_command @ ..], zkapp_commands @ ..],
[stmts @ [ before, after, ..], stmtss @ .. ]
) => {
// eprintln!("GROUP 4");
let stmts = &stmts[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(Same, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[], [AccountUpdate { authorization: a1 @ Proof(_), .. }, zkapp_command @ .. ], zkapp_commands @ ..],
[[ _ ], stmts @ [ before, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 5");
let stmts = &stmts[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(New, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([zkapp_command @ [AccountUpdate { authorization: a1, .. }, AccountUpdate { authorization: Proof(_), .. }, ..], zkapp_commands @ ..],
[stmts @ [before, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 6");
let stmts = &stmts[1..];
let zkapp_command = &zkapp_command[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(Same, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
(zkapp_commands @ [[AccountUpdate { authorization: a1, .. }], zkapp_command @ [], [AccountUpdate { authorization: Proof(_), .. }, ..], ..],
[stmts @ [before, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 7");
let stmts = &stmts[1..];
let zkapp_commands = &zkapp_commands[2..];
let zkapp_commands = prepend(*zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(Same, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[AccountUpdate { authorization: a1 @ (Signature(_) | NoneGiven), .. },
AccountUpdate { authorization: a2 @ (Signature(_) | NoneGiven), .. },
zkapp_command @ ..], zkapp_commands @ ..],
[stmts @ [before, _, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 8");
let stmts = &stmts[2..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(Same, to_specs(a1, a2), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[], zkapp_command @ [AccountUpdate { authorization: a1, .. }, AccountUpdate { authorization: Proof(_), .. }, ..], zkapp_commands @ ..],
[[ _ ], stmts @ [before, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 9");
let stmts = &stmts[1..];
let zkapp_command = &zkapp_command[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(New, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[], [AccountUpdate { authorization: a1 @ (Signature(_) | NoneGiven), .. },
AccountUpdate { authorization: a2 @ (Signature(_) | NoneGiven), .. },
zkapp_command @ ..], zkapp_commands @ ..],
[[ _ ], stmts @ [before, _, after, ..], stmtss @ ..] ) => {
// eprintln!("GROUP 10");
let stmts = &stmts[2..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(New, to_specs(a1, a2), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[AccountUpdate { authorization: a1 @ (Signature(_) | NoneGiven), .. }],
[AccountUpdate { authorization: a2 @ (Signature(_) | NoneGiven), .. }, zkapp_command @ ..],
zkapp_commands @ ..],
[[before, _after1], stmts @ [_before2, after, ..], stmtss @ .. ]
) => {
// eprintln!("GROUP 11");
let stmts = &stmts[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(New, to_specs(a1, a2), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
(zkapp_commands @ [[], [AccountUpdate { authorization: a1, .. }, zkapp_command @ ..],
[AccountUpdate { authorization: Proof(_), .. }, ..], ..],
stmtss @ [[ _ ], [before], stmts @ [after], _, ..]
) => {
// eprintln!("GROUP 12");
let stmtss = &stmtss[3..];
let zkapp_commands = &zkapp_commands[2..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(*stmts, stmtss);
acc.push(intermediate_state(New, to_spec(a1), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[], [AccountUpdate { authorization: a1 @ (Signature(_) | NoneGiven), .. }],
[AccountUpdate { authorization: a2 @ (Signature(_) | NoneGiven), .. }, zkapp_command @ ..],
zkapp_commands @ ..],
[[ _ ], [before, _after1], stmts @ [_before2, after, ..], stmtss @ ..]
) => {
// eprintln!("GROUP 13");
let stmts = &stmts[1..];
let zkapp_commands = prepend(zkapp_command, zkapp_commands);
let stmtss = prepend(stmts, stmtss);
acc.push(intermediate_state(TwoNew, to_specs(a1, a2), before, after));
group_by_zkapp_command_rev_impl(zkapp_commands.as_slice(), stmtss.as_slice(), acc);
}
([[AccountUpdate { authorization: a1, .. }]], [[before, after, ..], ..]) => {
// eprintln!("GROUP 14");
acc.push(intermediate_state(Same, to_spec(a1), before, after));
}
([[], [AccountUpdate { authorization: a1, .. }], [], ..], [[ _ ], [before, after, ..], ..]) => {
// eprintln!("GROUP 15");
acc.push(intermediate_state(New, to_spec(a1), before, after));
}
_ => panic!("invalid")
}
}
group_by_zkapp_command_rev_impl(&zkapp_account_updatess, &stmtss, &mut acc);
acc
}
}
pub type StartData = StartDataSkeleton<
ZkAppCommand, // account_updates
bool, // will_succeed
>;
#[derive(Clone, Debug)]
pub struct StartDataSkeleton<AccountUpdates, WillSucceed> {
pub account_updates: AccountUpdates,
pub memo_hash: Fp,
pub will_succeed: WillSucceed,
}
// TODO: De-duplicate with the one in `transaction_logic.rs`
#[derive(Debug, Clone, PartialEq)]
pub struct WithStackHash<T> {
pub elt: T,
pub stack_hash: Fp,
}
fn accumulate_call_stack_hashes(
hash_frame: impl Fn(&WithHash<StackFrame>) -> Fp,
frames: &[WithHash<StackFrame>],
) -> Vec<WithStackHash<WithHash<StackFrame>>> {
match frames {
[] => vec![],
[f, fs @ ..] => {
let h_f = hash_frame(f);
let mut tl = accumulate_call_stack_hashes(hash_frame, fs);
let h_tl = match tl.as_slice() {
[] => Fp::zero(),
[t, ..] => t.stack_hash,
};
tl.insert(
0,
WithStackHash {
elt: f.clone(),
stack_hash: hash_with_kimchi(ACCOUNT_UPDATE_CONS_HASH_PARAM, &[h_f, h_tl]),
},
);
tl
}
}
}
pub type LocalStateForWitness = LocalStateSkeleton<
SparseLedger, // ledger
StackFrame, // stack_frame
WithHash<Vec<WithStackHash<WithHash<StackFrame>>>>, // call_stack
TransactionCommitment, // commitments
Signed<Amount>, // excess & supply_increase
Vec<Vec<TransactionFailure>>, // failure_status_tbl
bool, // success & will_succeed
Index, // account_update_index
>;
#[derive(Debug)]
pub struct ZkappCommandSegmentWitness<'a> {
pub global_first_pass_ledger: SparseLedger,
pub global_second_pass_ledger: SparseLedger,
pub local_state_init: LocalStateForWitness,
pub start_zkapp_command: Vec<StartData>,
pub state_body: &'a v2::MinaStateProtocolStateBodyValueStableV2,
pub init_stack: Stack,
pub block_global_slot: Slot,
}
pub struct ZkappCommandsWithContext<'a> {
pub pending_coinbase_init_stack: pending_coinbase::Stack,
pub pending_coinbase_of_statement: pending_coinbase::StackState,
pub first_pass_ledger: SparseLedger,
pub second_pass_ledger: SparseLedger,
pub connecting_ledger_hash: Fp,
pub zkapp_command: &'a ZkAppCommand,
}
pub struct ZkappCommandWitnessesParams<'a> {
pub global_slot: Slot,
pub state_body: &'a v2::MinaStateProtocolStateBodyValueStableV2,
pub fee_excess: Signed<Amount>,
pub zkapp_commands_with_context: Vec<ZkappCommandsWithContext<'a>>,
}
pub fn zkapp_command_witnesses_exn(
params: ZkappCommandWitnessesParams,
) -> Vec<(
ZkappCommandSegmentWitness<'_>,
group::SegmentBasic,
Statement<SokDigest>,
)> {
let ZkappCommandWitnessesParams {
global_slot,
state_body,
fee_excess,
zkapp_commands_with_context,
} = params;
let supply_increase = Signed::<Amount>::zero();
let state_view = protocol_state_body_view(state_body);
let (_, _, will_succeeds, mut states) = zkapp_commands_with_context.iter().fold(
(fee_excess, supply_increase, vec![], vec![]),
|acc, v| {
let (fee_excess, supply_increase, mut will_succeeds, mut statess) = acc;
let ZkappCommandsWithContext {
pending_coinbase_init_stack: _,
pending_coinbase_of_statement: _,
first_pass_ledger,
second_pass_ledger,
connecting_ledger_hash,
zkapp_command,
} = v;
let (txn_applied, states) = {
let (partial_txn, states) = first_pass_ledger
.clone()
.apply_zkapp_first_pass_unchecked_with_states(
global_slot,
&state_view,
fee_excess,
supply_increase,
&second_pass_ledger,
zkapp_command,
)
.unwrap();
second_pass_ledger
.clone()
.apply_zkapp_second_pass_unchecked_with_states(states, partial_txn)
.unwrap()
};
let will_succeed = txn_applied.command.status.is_applied();
let states_with_connecting_ledger = states
.iter()
.cloned()
.map(|(global, local)| (global, local, *connecting_ledger_hash))
.collect::<Vec<_>>();
let final_state = {
let (global_state, _local_state, _connecting_ledger) =
states_with_connecting_ledger.last().unwrap();
global_state
};
let fee_excess = final_state.fee_excess;
let supply_increase = final_state.supply_increase;
will_succeeds.push(will_succeed);
statess.push(states_with_connecting_ledger);
(fee_excess, supply_increase, will_succeeds, statess)
},
);
states.insert(0, vec![states[0][0].clone()]);
let states = group::group_by_zkapp_command_rev(
zkapp_commands_with_context
.iter()
.map(|v| v.zkapp_command)
.collect(),
states,
);
let (mut commitment, mut full_commitment) = {
let LocalState {
transaction_commitment,
full_transaction_commitment,
..
} = LocalState::dummy();
(
TransactionCommitment(transaction_commitment),
TransactionCommitment(full_transaction_commitment),
)
};
let remaining_zkapp_command = {
let zkapp_commands = zkapp_commands_with_context
.iter()
.zip(will_succeeds)
.map(|(v, will_succeed)| {
let ZkappCommandsWithContext {
pending_coinbase_init_stack,
pending_coinbase_of_statement,
first_pass_ledger: _,
second_pass_ledger: _,
connecting_ledger_hash: _,
zkapp_command,
} = v;
(
pending_coinbase_init_stack,
pending_coinbase_of_statement,
StartData {
account_updates: (*zkapp_command).clone(),
memo_hash: zkapp_command.memo.hash(),
will_succeed,
},
)
})
.collect::<Vec<_>>();
zkapp_commands
};
let mut remaining_zkapp_command = remaining_zkapp_command.as_slice();
let mut pending_coinbase_init_stack = Stack::empty();
let mut pending_coinbase_stack_state = StackState {
source: Stack::empty(),
target: Stack::empty(),
};
let w = Vec::with_capacity(32);
states.into_iter().fold(w, |mut witnesses, s| {
let ZkappCommandIntermediateState {
kind,
spec,
state_before:
State {
global: source_global,
local: mut source_local,
},
state_after:
State {
global: target_global,
local: mut target_local,
},
connecting_ledger,
} = s;
source_local.failure_status_tbl = vec![];
target_local.failure_status_tbl = vec![];
let current_commitment = commitment;
let current_full_commitment = full_commitment;
let (
start_zkapp_command,
next_commitment,
next_full_commitment,
pending_coinbase_init_stack,
pending_coinbase_stack_state,
) = {
type TC = TransactionCommitment;
let empty_if_last = |mk: Box<dyn Fn() -> (TC, TC) + '_>| -> (TC, TC) {
let calls = target_local.stack_frame.calls.0.as_slice();
let call_stack = target_local.call_stack.0.as_slice();
match (calls, call_stack) {
([], []) => (TC::empty(), TC::empty()),
_ => mk(),
}
};
let mk_next_commitment = |zkapp_command: &ZkAppCommand| {
empty_if_last(Box::new(|| {
let next_commitment = zkapp_command.commitment();
let memo_hash = zkapp_command.memo.hash();
let fee_payer_hash =
AccountUpdate::of_fee_payer(zkapp_command.fee_payer.clone()).digest();
let next_full_commitment =
next_commitment.create_complete(memo_hash, fee_payer_hash);
(next_commitment, next_full_commitment)
}))
};
match kind {
group::Kind::Same => {
let (next_commitment, next_full_commitment) =
empty_if_last(Box::new(|| (current_commitment, current_full_commitment)));
(
Vec::new(),
next_commitment,
next_full_commitment,
pending_coinbase_init_stack.clone(),
pending_coinbase_stack_state.clone(),
)
}
group::Kind::New => match remaining_zkapp_command {
[v, rest @ ..] => {
let (
pending_coinbase_init_stack1,
pending_coinbase_stack_state1,
zkapp_command,
) = v;
let (commitment2, full_commitment2) =
mk_next_commitment(&zkapp_command.account_updates);
remaining_zkapp_command = rest;
commitment = commitment2;
full_commitment = full_commitment2;
pending_coinbase_init_stack = (*pending_coinbase_init_stack1).clone();
pending_coinbase_stack_state = (*pending_coinbase_stack_state1).clone();
(
vec![zkapp_command.clone()],
commitment2,
full_commitment2,
pending_coinbase_init_stack.clone(),
pending_coinbase_stack_state.clone(),
)
}
_ => panic!("Not enough remaining zkapp_command"),
},
group::Kind::TwoNew => match remaining_zkapp_command {
[v1, v2, rest @ ..] => {
let (
pending_coinbase_init_stack1,
pending_coinbase_stack_state1,
zkapp_command1,
) = v1;
let (
_pending_coinbase_init_stack2,
pending_coinbase_stack_state2,
zkapp_command2,
) = v2;
let (commitment2, full_commitment2) =
mk_next_commitment(&zkapp_command2.account_updates);
remaining_zkapp_command = rest;
commitment = commitment2;
full_commitment = full_commitment2;
pending_coinbase_init_stack = (*pending_coinbase_init_stack1).clone();
pending_coinbase_stack_state = StackState {
target: pending_coinbase_stack_state2.target.clone(),
..(*pending_coinbase_stack_state1).clone()
};
(
vec![zkapp_command1.clone(), zkapp_command2.clone()],
commitment2,
full_commitment2,
pending_coinbase_init_stack.clone(),
pending_coinbase_stack_state.clone(),
)
}
_ => panic!("Not enough remaining zkapp_command"),
},
}
};
let hash_local_state = |local: &LocalStateEnv<SparseLedger>| {
let call_stack = local
.call_stack
.iter()
.map(|v| WithHash::of_data(v.clone(), |v| v.digest()))
.collect::<Vec<_>>();
let call_stack = accumulate_call_stack_hashes(|x| x.hash, &call_stack);
let LocalStateEnv {
stack_frame,
call_stack: _,
transaction_commitment,
full_transaction_commitment,
excess,
supply_increase,
ledger,
success,
account_update_index,
failure_status_tbl,
will_succeed,
} = local.clone();
LocalStateForWitness {
stack_frame,
call_stack: WithHash {
data: call_stack,
hash: Fp::zero(), // TODO
},
transaction_commitment: TransactionCommitment(transaction_commitment.0),
full_transaction_commitment: TransactionCommitment(full_transaction_commitment.0),
excess,
supply_increase,
ledger,
success,
account_update_index,
failure_status_tbl,
will_succeed,
}
};
let source_local = LocalStateForWitness {
transaction_commitment: current_commitment,
full_transaction_commitment: current_full_commitment,
..hash_local_state(&source_local)
};
let target_local = LocalStateForWitness {
transaction_commitment: next_commitment,
full_transaction_commitment: next_full_commitment,
..hash_local_state(&target_local)
};
let w = ZkappCommandSegmentWitness {
global_first_pass_ledger: source_global.first_pass_ledger.clone(),
global_second_pass_ledger: source_global.second_pass_ledger.clone(),
local_state_init: source_local.clone(),
start_zkapp_command,
state_body,
init_stack: pending_coinbase_init_stack,
block_global_slot: global_slot,
};
let fee_excess = {
let fee_excess = target_global
.fee_excess
.add(&source_global.fee_excess.negate())
.expect("unexpected fee excess");
FeeExcess {
fee_token_l: TokenId::default(),
fee_excess_l: fee_excess.to_fee(),
fee_token_r: TokenId::default(),
fee_excess_r: Signed::zero(),
}
};
let supply_increase = target_global
.supply_increase
.add(&source_global.supply_increase.negate())
.expect("unexpected supply increase");
let call_stack_hash = |s: &Vec<WithStackHash<WithHash<StackFrame>>>| {
s.first().map(|v| v.stack_hash).unwrap_or_else(Fp::zero)
};
let statement = {
let target_first_pass_ledger_root =
target_global.first_pass_ledger.clone().merkle_root();
let (source_local_ledger, target_local_ledger) = (
source_local.ledger.clone().merkle_root(),
target_local.ledger.clone().merkle_root(),
);
Statement::<SokDigest> {
source: Registers {
first_pass_ledger: source_global.first_pass_ledger.clone().merkle_root(),
second_pass_ledger: source_global.second_pass_ledger.clone().merkle_root(),
pending_coinbase_stack: pending_coinbase_stack_state.source.clone(),
local_state: {
let LocalStateForWitness {
stack_frame,
call_stack,
transaction_commitment,
full_transaction_commitment,
excess,
supply_increase,
ledger: _,
success,
account_update_index,
failure_status_tbl,
will_succeed,
} = source_local;
LocalState {
stack_frame: stack_frame.digest(),
call_stack: call_stack_hash(&call_stack),
transaction_commitment: transaction_commitment.0,
full_transaction_commitment: full_transaction_commitment.0,
ledger: source_local_ledger,
excess,
supply_increase,
success,
account_update_index,
failure_status_tbl,
will_succeed,
}
},
},
target: Registers {
first_pass_ledger: target_first_pass_ledger_root,
second_pass_ledger: target_global.second_pass_ledger.clone().merkle_root(),
pending_coinbase_stack: pending_coinbase_stack_state.target.clone(),
local_state: {
let LocalStateForWitness {
stack_frame,
call_stack,
transaction_commitment,
full_transaction_commitment,
excess,
supply_increase,
ledger: _,
success,
account_update_index,
failure_status_tbl,
will_succeed,
} = target_local;
LocalState {
stack_frame: stack_frame.digest(),
call_stack: call_stack_hash(&call_stack),
transaction_commitment: transaction_commitment.0,
full_transaction_commitment: full_transaction_commitment.0,
ledger: target_local_ledger,
excess,
supply_increase,
success,
account_update_index,
failure_status_tbl,
will_succeed,
}
},
},
connecting_ledger_left: connecting_ledger,
connecting_ledger_right: connecting_ledger,
supply_increase,
fee_excess,
sok_digest: SokDigest::default(),
}
};
witnesses.insert(0, (w, spec, statement));
witnesses
})
}
#[derive(Clone, Debug)]
pub enum IsStart {
Yes,
No,
ComputeInCircuit,
}
#[derive(Clone, Debug)]
pub struct Spec {
pub auth_type: ControlTag,
pub is_start: IsStart,
}
fn basic_spec(s: &SegmentBasic) -> Box<[Spec]> {
let opt_signed = || Spec {
auth_type: ControlTag::Signature,
is_start: IsStart::ComputeInCircuit,
};
match s {
SegmentBasic::OptSignedOptSigned => Box::new([opt_signed(), opt_signed()]),
SegmentBasic::OptSigned => Box::new([opt_signed()]),
SegmentBasic::Proved => Box::new([Spec {
auth_type: ControlTag::Proof,
is_start: IsStart::No,
}]),
}
}
fn read_witnesses<F: FieldWitness>(path: &str) -> Vec<F> {
let f = std::fs::read_to_string(
std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
.join("berkeley_rc1")
.join("witnesses")
.join(path),
// .join("zkapp_fps.txt"),
)
.unwrap();
let fps = f
.lines()
.filter(|s| !s.is_empty())
.map(|s| F::from_str(s).unwrap_or_else(|_| panic!()))
.collect::<Vec<_>>();
fps
}
struct CheckProtocolStateParams<'a> {
pending_coinbase_stack_init: Stack,
pending_coinbase_stack_before: Stack,
pending_coinbase_stack_after: Stack,
block_global_slot: CheckedSlot<Fp>,
state_body: &'a v2::MinaStateProtocolStateBodyValueStableV2,
}
fn check_protocol_state(params: CheckProtocolStateParams, w: &mut Witness<Fp>) {
let CheckProtocolStateParams {
pending_coinbase_stack_init,
pending_coinbase_stack_before,
pending_coinbase_stack_after,
block_global_slot,
state_body,
} = params;
let state_body_hash = state_body.checked_hash_with_param("MinaProtoStateBody", w);
let global_slot = block_global_slot;
let computed_pending_coinbase_stack_after =
pending_coinbase_stack_init.checked_push_state(state_body_hash, global_slot, w);
let _correct_coinbase_target_stack =
computed_pending_coinbase_stack_after.equal_var(&pending_coinbase_stack_after, w);
let _valid_init_state = {
let equal_source = pending_coinbase_stack_init.equal_var(&pending_coinbase_stack_before, w);
let equal_source_with_state =
computed_pending_coinbase_stack_after.equal_var(&pending_coinbase_stack_before, w);
equal_source.or(&equal_source_with_state, w)
};
}
/// With root hash
#[derive(Clone)]
pub struct LedgerWithHash {
pub ledger: SparseLedger,
pub hash: Fp,
}
impl ToFieldElements<Fp> for LedgerWithHash {
fn to_field_elements(&self, fields: &mut Vec<Fp>) {
let Self { ledger: _, hash } = self;
hash.to_field_elements(fields);
}
}
impl Check<Fp> for LedgerWithHash {
fn check(&self, _w: &mut Witness<Fp>) {
// Nothing
}
}
pub struct ZkappSingleData {
spec: Spec,
zkapp_input: Rc<RefCell<Option<ZkappStatement>>>,
must_verify: Rc<RefCell<Boolean>>,
}