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Fix constraint

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This commit is contained in:
wborgeaud 2022-06-09 23:36:43 +02:00
parent 10ac355d06
commit 51f66d4dac
2 changed files with 10 additions and 4 deletions
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5
evm/src/all_stark.rs
View File

@ -87,15 +87,16 @@ mod tests {
let keccak_stark = KeccakStark::<F, D> {
f: Default::default(),
};
let keccak_rows = (NUM_ROUNDS + 1).next_power_of_two();
let keccak_rows = (2 * NUM_ROUNDS + 1).next_power_of_two();
let keccak_looked_col = 3;
let mut rng = ChaCha8Rng::seed_from_u64(0x6feb51b7ec230f25);
let num_inputs = 1;
let num_inputs = 2;
let keccak_inputs = (0..num_inputs)
.map(|_| [0u64; INPUT_LIMBS].map(|_| rng.gen()))
.collect_vec();
let keccak_trace = keccak_stark.generate_trace(keccak_inputs);
dbg!(keccak_trace[0].len(), keccak_rows);
let column_to_copy: Vec<_> = keccak_trace[keccak_looked_col].values[..].into();
let default = vec![F::ONE; 1];

9
evm/src/keccak/keccak_stark.rs
View File

@ -345,8 +345,13 @@ impl<F: RichField + Extendable<D>, const D: usize> Stark<F, D> for KeccakStark<F
let input_bits_combined_hi = (32..64)
.rev()
.fold(P::ZEROS, |acc, z| acc.doubles() + input_bits[z]);
yield_constr.constraint_transition(output_lo - input_bits_combined_lo);
yield_constr.constraint_transition(output_hi - input_bits_combined_hi);
let is_last_round = vars.local_values[reg_step(NUM_ROUNDS - 1)];
yield_constr.constraint_transition(
(P::ONES - is_last_round) * (output_lo - input_bits_combined_lo),
);
yield_constr.constraint_transition(
(P::ONES - is_last_round) * (output_hi - input_bits_combined_hi),
);
}
}
}