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Prevent panicking each time the computed sum is zero #65

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Prevent panicking each time the computed sum is zero #65

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11 changes: 8 additions & 3 deletions protocol/src/pjc/partner.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ use common::timer;

use num_bigint::BigUint;
use num_traits::One;
use num_traits::Zero;

use std::path::Path;
use std::sync::Arc;
Expand Down Expand Up @@ -173,9 +174,13 @@ impl PartnerPJCProtocol for PartnerPjc {
assert_eq!(encrypted_sum.len(), 1);
let z = ((self.he_cipher.decrypt_vec(encrypted_sum))[0]).clone();
let sum = {
let v = (z % &max_val).to_u64_digits();
assert_eq!(v.len(), 1);
v[0]
if z.is_zero() {
0
} else {
let v = (z % &max_val).to_u64_digits();
assert_eq!(v.len(), 1);
v[0]
}
};
info!("Feature: {}, Sum {}", feature_index, sum);

Expand Down