chaum_pedersen_auth 0.1.4

An implementation of ZKP(Zero Knowledge Proof) using chaum pedersen algorithm
Documentation 
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# Zero Knowledge Proof Algorithm Implemetaion  [![Awesome](https://cdn.jsdelivr.net/gh/sindresorhus/awesome@d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome#readme)
## How to use this library?
*TL;DR*

- ```cargo build```  (should generate the compiled protobuf in exampls/protos.  Note the build.rs file is only for compiling the proto files in example folder.)
- Start the server: ```cargo run --package chaum_pedersen_auth --example server```
- Start the client:```cargo run --package chaum_pedersen_auth --example client```
- Take a look at Example folder which implemeted a client and a server that use gRPC as protocol.
## The theory
### Assets:
  - Bob's Asset: Private key: $x, k$
  - Alice's Asset: Random key $c$
  - Shared Asset: generator $\alpha , \beta$.
### Registrition: 
$\alpha^x \mod q$ , $\beta^x \mod q$ 
### Authentication: 
Bob send  $\alpha^k \mod q$ , $\beta^k \mod q$ 
- Bob calculation: $s = k - cx$
- Alice Verification: $\alpha^s (\alpha^x)^c \mod q$ , $\beta^s (\beta^x)^c\mod q$ 

## Usage
- Put the following crates to Cargo workspace:
    - [zkp_grpc_client](https://crates.io/crates/zkp_grpc_client)
    - [zkp_protobuf](https://crates.io/crates/zkp_protobuf)
    - [zkp_grpc_server](https://crates.io/crates/zkp_grpc_server)