feat: implement subarray equality check using RLC #189
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jtguibas
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Sep 22, 2023
plonky2x/src/frontend/builder/mod.rs
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| @@ -268,6 +268,15 @@ impl<L: PlonkParameters<D>, const D: usize> CircuitBuilder<L, D> { | |||
| pub fn to_be_bits<V: EvmVariable>(&mut self, variable: V) -> Vec<BoolVariable> { | |||
| variable.to_be_bits(self) | |||
| } | |||
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| /// Takes a slice of bits and returns the number with little-endian bit representation as a Variable | |||
jtguibas
reviewed
Sep 22, 2023
plonky2x/src/frontend/builder/mod.rs
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| /// Takes a slice of bits and returns the number with little-endian bit representation as a Variable | ||
| pub fn le_sum(&mut self, bits: &[BoolVariable]) -> Variable { | ||
| let bits_in_booltarget = bits |
jtguibas
reviewed
Sep 22, 2023
plonky2x/src/frontend/eth/mpt/rlc.rs
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| if a[a_offset + i] != b[b_offset + i] { | ||
| return 0; | ||
| impl<L: PlonkParameters<D>, const D: usize> CircuitBuilder<L, D> { | ||
| /// Generates a commitment for a subarray using RLC |
jtguibas
reviewed
Sep 22, 2023
plonky2x/src/frontend/eth/mpt/rlc.rs
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| let mut is_within_subarray: Variable = self.zero(); | ||
| let mut commitment = self.zero(); | ||
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| let _one: Variable = self.one(); |
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let one, instead of let _one
jtguibas
reviewed
Sep 22, 2023
| builder.assert_subarray_equal(&a, a_offset, &b, b_offset, len); | ||
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| let pw = PartialWitness::new(); | ||
| let circuit = builder.build(); |
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can you make this use circuit.inputs() and circuit.prove()?
jtguibas
reviewed
Sep 22, 2023
plonky2x/src/frontend/eth/mpt/rlc.rs
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| let pw = PartialWitness::new(); | ||
| let circuit = builder.build(); | ||
| let proof = circuit.data.prove(pw).unwrap(); |
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@NikolayKostadinov21 Overall, looks like a solid implementation of the subarray equality check. I'll take a closer look at the actual RLC implementation and make sure the logic looks correct in a bit. In the meantime, it would be great if you could address the comments I left on the PR! |
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