Python EC wallet client sdk

A python micro-library of ECDSA functions for generation of keypairs, signing and verification.

Installation

Python 3 is required to install this sdk. Note: It is recommended to use a virtualenv

(venv) $ git clone https://github.com/vaultbank/python-ec-client-sdk
(venv) $ python setup.py install

or

(venv) $  pip install git+https://github.com/vaultbank/python-ec-client-sdk.git

Usage

Import the library

FROM ec_wallet import EcWalletClient
wallet_client = EcWalletClient()

Following functions are available in the library:

1. generate_keypair: Generates a keypair and returns the public key while storing the private key in the wallet for signing (This public key is to be used as "user_id" of users during tests)

wallet_client.generate_keypair()

2. import_keypair: Imports a private key in the wallet that can be used for signing

wallet_client.import_keypair(priv_key)

3. sign: Takes a JSON payload and signs it using the private key corresponding to the supplied user_id. (Returns r, s of Signature)

wallet_client.sign(payload, user_id)

4. verify: Verifies that a JSON payload was signed using the private key corresponding to the supplied user_id. (Takes r, s of signature and returns a boolean)

wallet_client.verify(payload, user_id, r, s)