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fix doc comment about failing

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This commit is contained in:
NikVolf 2017-03-31 17:53:26 +03:00
parent 569d63d0c9
commit d6baadbaf2
1 changed files with 5 additions and 2 deletions
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7
ethcore/src/builtin.rs
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@ -430,11 +430,14 @@ mod bn128_gen {
} }
impl Impl for Bn128ParingImpl { impl Impl for Bn128ParingImpl {
// Can fail if any of the 2 points does not belong the bn128 curve /// Can fail if:
/// - input length is not a multiple of 192
/// - any of odd points does not belong to bn128 curve
/// - any of even points does not belong to the twisted bn128 curve over the field F_p^2 = F_p[i] / (i^2 + 1)
fn execute(&self, input: &[u8], output: &mut BytesRef) -> Result<(), Error> { fn execute(&self, input: &[u8], output: &mut BytesRef) -> Result<(), Error> {
use bn::{AffineG1, AffineG2, Fq, Fq2, pairing, G1, G2}; use bn::{AffineG1, AffineG2, Fq, Fq2, pairing, G1, G2};
let elements = input.len() / 192; // (a, b_a, b_b - each 64-byte affine coordinates) let elements = input.len() / 192; // (a, b_a, b_b - each 64-byte affine coordinate)
if input.len() % 192 != 0 { if input.len() % 192 != 0 {
return Err("Invalid input length, must be multiple of 192 (3 * (32*2))".into()) return Err("Invalid input length, must be multiple of 192 (3 * (32*2))".into())
} }