Files
nym/clients/credential/src/state.rs
T
Bogdan-Ștefan Neacşu 9e8f550e6d Feature/signature on deposit (#1151)
* Add placeholder client for implementing coconut interactions

* Add db for persistance

* Add nymd client

* Add new coconut-bandwidth contract

* Call deposit function

* Introduce error handling

* Call the old flow of getting a signature

* List available tx hashes

* Add signed req in body

* Save signature received

* Add event generation

* Checks in validator-api

* Fail with error instead of panic in validator-api route

* Fix contract address and small bug

* Add file db for storing previous signatures

* Encrypt and store data in validator-api

* Decrypt the received signature

* Remove tx hashes after getting credentials

* Small listing changes in client

* Change response so that it easier to serialize

* Error message is sent to client for display

* Remove already signed error and return the previous sig

* Merge signature with deposit data in client

* Entrypoint for getting the encrypted signature

* Refactor blinding stuff so that it can be backed up

* Backed up the blind sign request

* Client can re-request the encrypted signature shares

* Update crypto features

* Fix clippy

* Activate instantiate test and remove unused code

* Add tx tests

* Add verification key endpoint test

* Voucher consistency test

* Test for some errors and a race condition on blind signing

* Refactor and add client trait for enabling better testing env

* Test some more of blind sign

* Finished testing all extract_encryption_key paths

* Split into function test and endpoint test

* Test for correct signature

* Test for state functions

* Remove print

* Test blind_sign endpoint

* Test for cached signature endpoint

* Stricter types in voucher

* Rename signature with partial_bandwidth_credential

* Extra route levels

* Length check and remove some unused code from coconut interface

* Renamed coconut-bandwidth common crate

* Renamed verification_key to identity_key

* Use const instead of hardcoded values

* Use type aliases for crypto algorithms

* Remove unused mods, until needed

* Remove unneeded unwrap

* Fix some coconut issues that were blocking the wasm client build

* Move from sled to existing sql database

* Update tests for new db type

* Fix wasm for coconut too

* Remove sled from dependencies
2022-03-29 15:03:38 +03:00

73 lines
2.2 KiB
Rust

// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use coconut_interface::{Attribute, BlindSignRequest, Bytable, PrivateAttribute};
use serde::{Deserialize, Serialize};
use crypto::asymmetric::{encryption, identity};
use crate::error::{CredentialClientError, Result};
#[derive(Clone, Debug, Deserialize, Serialize)]
pub(crate) struct KeyPair {
pub public_key: String,
pub private_key: String,
}
impl From<identity::KeyPair> for KeyPair {
fn from(kp: identity::KeyPair) -> Self {
Self {
public_key: kp.public_key().to_base58_string(),
private_key: kp.private_key().to_base58_string(),
}
}
}
impl From<encryption::KeyPair> for KeyPair {
fn from(kp: encryption::KeyPair) -> Self {
Self {
public_key: kp.public_key().to_base58_string(),
private_key: kp.private_key().to_base58_string(),
}
}
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub(crate) struct State {
pub amount: u64,
pub tx_hash: String,
pub signing_keypair: KeyPair,
pub encryption_keypair: KeyPair,
pub blind_request_data: Option<RequestData>,
pub signature: Option<String>,
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub(crate) struct RequestData {
pub serial_number: Vec<u8>,
pub binding_number: Vec<u8>,
pub first_attribute: Vec<u8>,
pub second_attribute: Vec<u8>,
pub blind_sign_req: Vec<u8>,
}
impl RequestData {
pub fn new(
private_attributes: Vec<PrivateAttribute>,
attributes: &[Attribute],
blind_sign_request: &BlindSignRequest,
) -> Result<Self> {
if private_attributes.len() != 2 || attributes.len() != 2 {
Err(CredentialClientError::WrongAttributeNumber)
} else {
Ok(RequestData {
serial_number: private_attributes[0].to_byte_vec(),
binding_number: private_attributes[1].to_byte_vec(),
first_attribute: attributes[0].to_byte_vec(),
second_attribute: attributes[1].to_byte_vec(),
blind_sign_req: blind_sign_request.to_bytes(),
})
}
}
}