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X1 new bounds in q/3...2q/3 #31

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X1 new bounds in q/3...2q/3 #31

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683952d
init
leontiadZen Aug 15, 2023
67ae47f
debug
leontiadZen Aug 15, 2023
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2 changes: 1 addition & 1 deletion Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -11,4 +11,4 @@ edition = "2021"
[dependencies]
rand = "0.8"
serde = { version = "1", features = ["derive"] }
two-party-ecdsa = { git = "https://github.com/ZenGo-X/two-party-ecdsa.git" }
two-party-ecdsa = { git = "https://github.com/ZenGo-X/two-party-ecdsa.git" ,branch = "party1-msg1-rand-range"}
2 changes: 2 additions & 0 deletions src/ecdsa/two_party/party1.rs
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Expand Up @@ -32,6 +32,7 @@ pub struct KeyGenParty1Message2 {
pub ecdh_second_message: party_one::KeyGenSecondMsg,
pub ek: EncryptionKey,
pub c_key: BigInt,
pub encrypted_share_minus_q_thirds: BigInt,
pub correct_key_proof: NICorrectKeyProof,
pub range_proof: RangeProofNi,
}
Expand Down Expand Up @@ -131,6 +132,7 @@ impl MasterKey1 {
ecdh_second_message: key_gen_second_message,
ek: paillier_key_pair.ek.clone(),
c_key: paillier_key_pair.encrypted_share.clone(),
encrypted_share_minus_q_thirds:paillier_key_pair.encrypted_share_minus_q_thirds.clone(),
correct_key_proof,
range_proof,
},
Expand Down
6 changes: 3 additions & 3 deletions src/ecdsa/two_party/party2.rs
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Expand Up @@ -115,15 +115,15 @@ impl MasterKey2 {
(),
> {
let paillier_encryption_key = party_one_second_message.ek.clone();
let paillier_encrypted_share = party_one_second_message.c_key.clone();
let paillier_encrypted_share = party_one_second_message.encrypted_share_minus_q_thirds.clone();

let party_two_second_message =
party_two::KeyGenSecondMsg::verify_commitments_and_dlog_proof(
&party_one_first_message,
&party_one_second_message.ecdh_second_message,
);

let party_two_paillier = party_two::PaillierPublic {
let mut party_two_paillier = party_two::PaillierPublic {
ek: paillier_encryption_key.clone(),
encrypted_secret_share: paillier_encrypted_share.clone(),
};
Expand All @@ -132,7 +132,7 @@ impl MasterKey2 {
&party_two_paillier,
&party_one_second_message.range_proof,
);

party_two_paillier.encrypted_secret_share = party_one_second_message.c_key.clone();
let (pdl_first_message, pdl_chal) = party_two_paillier.pdl_challenge(
&party_one_second_message
.ecdh_second_message
Expand Down