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chore: wrap up ETHDoS example #121

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Merged
ax0 merged 1 commit into from
Mar 10, 2025
Merged

chore: wrap up ETHDoS example #121

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115 changes: 94 additions & 21 deletions src/examples.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -82,8 +82,11 @@ pub fn eth_dos_pod_builder(
bob_pubkey: &Value,
) -> Result<MainPodBuilder> {
// Will need ETH friend and ETH DoS custom predicate batches.
let eth_friend_batch = eth_friend_batch(params)?;
let eth_friend = CustomPredicateRef(eth_friend_batch(params)?, 0);
let eth_dos_batch = eth_dos_batch(params)?;
let eth_dos_base = CustomPredicateRef(eth_dos_batch.clone(), 0);
let eth_dos_ind = CustomPredicateRef(eth_dos_batch.clone(), 1);
let eth_dos = CustomPredicateRef(eth_dos_batch.clone(), 2);

// ETHDoS POD builder
let mut alice_bob_ethdos = MainPodBuilder::new(params);
Expand All @@ -100,15 +103,16 @@ pub fn eth_dos_pod_builder(
.get(&KEY_SIGNER.into())
.ok_or(anyhow!("Could not find Charlie's public key!"))?;

// Include Alice and Bob's keys as public statements.
// Include Alice and Bob's keys as public statements. We don't
// want to reveal the middleman.
let alice_pubkey_copy = alice_bob_ethdos.pub_op(Operation(
OperationType::Native(NativeOperation::NewEntry),
vec![OperationArg::Entry(
"Alice".to_string(),
alice_pubkey.into(),
)],
))?;
let _bob_pubkey_copy = alice_bob_ethdos.pub_op(Operation(
let bob_pubkey_copy = alice_bob_ethdos.pub_op(Operation(
OperationType::Native(NativeOperation::NewEntry),
vec![OperationArg::Entry("Bob".to_string(), bob_pubkey.clone())],
))?;
Expand All @@ -132,13 +136,17 @@ pub fn eth_dos_pod_builder(
OperationArg::Statement(alice_pubkey_copy.clone()),
],
))?;
let _ethdos_alice_alice_is_zero = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(CustomPredicateRef(eth_dos_batch, 0)),
let ethdos_alice_alice_is_zero_base = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_dos_base.clone()),
vec![
OperationArg::Statement(alice_equals_alice),
OperationArg::Statement(zero.clone()),
],
))?;
let ethdos_alice_alice_is_zero = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_dos.clone()),
vec![OperationArg::Statement(ethdos_alice_alice_is_zero_base)],
))?;

// Alice and Charlie are ETH friends.
let attestation_is_signed_pod = Statement::from((alice_attestation, KEY_TYPE));
Expand All @@ -153,35 +161,100 @@ pub fn eth_dos_pod_builder(
OperationType::Native(NativeOperation::EqualFromEntries),
vec![
OperationArg::from((alice_attestation, "attestation")),
OperationArg::Statement(charlie_pubkey),
OperationArg::Statement(charlie_pubkey.clone()),
],
))?;
let _ethfriends_alice_charlie = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(CustomPredicateRef(eth_friend_batch, 0)),
let ethfriends_alice_charlie = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_friend.clone()),
vec![
OperationArg::Statement(attestation_is_signed_pod),
OperationArg::Statement(attestation_signed_by_alice),
OperationArg::Statement(alice_attests_to_charlie),
],
))?;

// ...and so are Chuck and Bob.
let attestation_is_signed_pod = Statement::from((charlie_attestation, KEY_TYPE));
let attestation_signed_by_charlie = alice_bob_ethdos.priv_op(Operation(
OperationType::Native(NativeOperation::EqualFromEntries),
vec![
OperationArg::from((charlie_attestation, KEY_SIGNER)),
OperationArg::Statement(charlie_pubkey),
],
))?;
let charlie_attests_to_bob = alice_bob_ethdos.priv_op(Operation(
OperationType::Native(NativeOperation::EqualFromEntries),
vec![
OperationArg::from((charlie_attestation, "attestation")),
OperationArg::Statement(bob_pubkey_copy),
],
))?;
let ethfriends_charlie_bob = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_friend.clone()),
vec![
OperationArg::Statement(attestation_is_signed_pod),
OperationArg::Statement(attestation_signed_by_charlie),
OperationArg::Statement(charlie_attests_to_bob),
],
))?;

// The ETHDoS distance from Alice to Charlie is 1.
let _one = alice_bob_ethdos.priv_op(Operation(
let one = alice_bob_ethdos.priv_op(Operation(
OperationType::Native(NativeOperation::NewEntry),
vec![OperationArg::Entry("ZERO".to_string(), Value::from(0i64))],
vec![OperationArg::Entry("ONE".to_string(), Value::from(1i64))],
))?;
// 1 = 0 + 1
// let ethdos_sum = alice_bob_ethdos.priv_op(
// Operation(
// OperationType::Native(NativeOperation::SumOf
// ),
// vec![
// OperationArg::Statement(_one.clone()),
// OperationArg::Statement(zero.clone()),
// OperationArg::Statement(zero.clone())
// ]
// )
// );
let ethdos_sum = alice_bob_ethdos.priv_op(Operation(
OperationType::Native(NativeOperation::SumOf),
vec![
OperationArg::Statement(one.clone()),
OperationArg::Statement(zero.clone()),
OperationArg::Statement(one.clone()),
],
))?;
let ethdos_alice_charlie_is_one_ind = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_dos_ind.clone()),
vec![
OperationArg::Statement(ethdos_alice_alice_is_zero),
OperationArg::Statement(one.clone()),
OperationArg::Statement(ethdos_sum),
OperationArg::Statement(ethfriends_alice_charlie),
],
))?;
let ethdos_alice_charlie_is_one = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_dos.clone()),
vec![OperationArg::Statement(ethdos_alice_charlie_is_one_ind)],
))?;

// The ETHDoS distance from Alice to Bob is 2.
// The constant "TWO" and the final statement are both to be
// public.
let two = alice_bob_ethdos.pub_op(Operation(
OperationType::Native(NativeOperation::NewEntry),
vec![OperationArg::Entry("TWO".to_string(), Value::from(2i64))],
))?;
// 2 = 1 + 1
let ethdos_sum = alice_bob_ethdos.priv_op(Operation(
OperationType::Native(NativeOperation::SumOf),
vec![
OperationArg::Statement(two.clone()),
OperationArg::Statement(one.clone()),
OperationArg::Statement(one.clone()),
],
))?;
let ethdos_alice_bob_is_two_ind = alice_bob_ethdos.priv_op(Operation(
OperationType::Custom(eth_dos_ind.clone()),
vec![
OperationArg::Statement(ethdos_alice_charlie_is_one),
OperationArg::Statement(one.clone()),
OperationArg::Statement(ethdos_sum),
OperationArg::Statement(ethfriends_charlie_bob),
],
))?;
let _ethdos_alice_bob_is_two = alice_bob_ethdos.pub_op(Operation(
OperationType::Custom(eth_dos.clone()),
vec![OperationArg::Statement(ethdos_alice_bob_is_two_ind)],
))?;

Ok(alice_bob_ethdos)
}
Expand Down
44 changes: 30 additions & 14 deletions src/frontend/mod.rs
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -384,7 +384,7 @@ impl MainPodBuilder {
CopyStatement => match &args[0] {
OperationArg::Statement(s) => s.1.clone(),
_ => {
return Err(anyhow!("Invalid arguments to operation: {}", op));
return Err(anyhow!("Invalid arguments to copy operation: {}", op));
}
},
EqualFromEntries => self.op_args_entries(public, args)?,
Expand All @@ -409,11 +409,15 @@ impl MainPodBuilder {
if st0_args[1] == st1_args[0] {
vec![st0_args[0].clone(), st1_args[1].clone()]
} else {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!(
"Invalid arguments to transitive equality operation"
));
}
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!(
"Invalid arguments to transitive equality operation"
));
}
}
}
Expand All @@ -425,7 +429,7 @@ impl MainPodBuilder {
vec![st_args[0].clone()]
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to gt-to-neq operation"));
}
},
LtToNotEqual => match args[0].clone() {
Expand All @@ -436,7 +440,7 @@ impl MainPodBuilder {
vec![st_args[0].clone()]
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to lt-to-neq operation"));
}
},
ContainsFromEntries => self.op_args_entries(public, args)?,
Expand Down Expand Up @@ -476,17 +480,17 @@ impl MainPodBuilder {
st2_args[0].clone(),
]
} else {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to sum-of operation"));
}
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to sum-of operation"));
}
};
st_args
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to sum-of operation"));
}
},
ProductOf => match (args[0].clone(), args[1].clone(), args[2].clone()) {
Expand Down Expand Up @@ -524,17 +528,19 @@ impl MainPodBuilder {
st2_args[0].clone(),
]
} else {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!(
"Invalid arguments to product-of operation"
));
}
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to product-of operation"));
}
};
st_args
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to product-of operation"));
}
},
MaxOf => match (args[0].clone(), args[1].clone(), args[2].clone()) {
Expand Down Expand Up @@ -572,11 +578,11 @@ impl MainPodBuilder {
st2_args[0].clone(),
]
} else {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to max-of operation"));
}
}
_ => {
return Err(anyhow!("Invalid arguments to operation"));
return Err(anyhow!("Invalid arguments to max-of operation"));
}
};
st_args
Expand Down Expand Up @@ -977,7 +983,17 @@ pub mod tests {

#[test]
fn test_ethdos() -> Result<()> {
let params = Params::default();
let params = Params {
max_input_signed_pods: 3,
max_input_main_pods: 3,
max_statements: 31,
max_signed_pod_values: 8,
max_public_statements: 10,
max_statement_args: 5,
max_operation_args: 5,
max_custom_predicate_arity: 5,
max_custom_batch_size: 5,
};

let mut alice = MockSigner { pk: "Alice".into() };
let bob = MockSigner { pk: "Bob".into() };
Expand Down
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