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feat(devnet2): modexp assume minimal base/mod length of 32 #2613

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Jun 10, 2025
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feat(devnet2): modexp assume minimal base/mod length of 32 #2613

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10 changes: 5 additions & 5 deletions crates/precompile/src/modexp.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -178,12 +178,12 @@ pub fn berlin_gas_calc(base_len: u64, exp_len: u64, mod_len: u64, exp_highp: &U2
/// 3. Increase cost when base or modulus is larger than 32 bytes
pub fn osaka_gas_calc(base_len: u64, exp_len: u64, mod_len: u64, exp_highp: &U256) -> u64 {
gas_calc::<500, 16, 3, _>(base_len, exp_len, mod_len, exp_highp, |max_len| -> U256 {
let words = U256::from(max_len.div_ceil(8));
let words_square = words * words;
if max_len > 32 {
return words_square * U256::from(2);
if max_len <= 32 {
return U256::from(16); // multiplication_complexity = 16
}
words_square

let words = U256::from(max_len.div_ceil(8));
words * words * U256::from(2) // multiplication_complexity = 2 * words**2
})
}

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