A lightweight and fast pure Python ECDSA Overview. We tried other Python libraries such as python-ecdsa, fast-ecdsa and other less famous ones, but we didn't find anything that suited our needs. The first one was pure Python, but it was too slow. The second one mixed Python and C and it was really fast, but we were unable to use it in our current infrastructure, which required pure Python code. Online tool to play around with ECDSA public keys, message signature verification? Ask Question Asked 2 years. Generating public private key pairs and testing signing. How to generate Bitcoin private - public keys with ECDSA module? Feb 24, 2009  ECDSA/Using private and Public keys. I'm extremely new to this so any help would be much appreciated. Ultimately I need to use pre-computed Public and Private EC keys to.

1. Ecdsa Key Generation
2. Openssl Ecdsa With Sha256
3. Public Key Definition
4. Ecdsa Online
5. Symmetric Key

Please delete colons ':' and new lines for the private key and the public key and fill 'EC private key (hex)' and 'EC public key (hex)' in above form and choose proper curve name, then you can use them for signing and verification. This generates the private key in the pem format that openssl uses. Echo 'Generating public key' openssl ec -in $PRIVATEKEY -pubout -out $PUBLICKEY This generates the public key from the provided private key (which we just generated) and writes it to a file in the pem format. How to generate a public key from a private ECDSA key? Ask Question Asked 7 years, 3 months ago. Active 2 months ago. Making ECDSA public keys one bit shorter. PublicKey contains the elliptic curve public key associated with the private key in question. The format of the public key is specified in Section 2.2 of RFC5480. Though the ASN.1 indicates publicKey is OPTIONAL, implementations that conform to this document SHOULD always include the publicKey field.

This is a simple doc on generating certificates with OpenSSL.It focus on three different certificate types, exactly the classic RSA and ECDSA and the relative new RSASSA-PSS.It generates a CA and an end entity (EE) certificate for each type.The content is straightforward and concise: Commands with comments.

Please note that the commands on different certificate types are quite similar.Especially, the private key generation on different algorithms just uses tool genpkey, though some algorithms (e.g. RSA) have their own tool (e.g. genrsa).This is deliberate. In further development, these commands could be abstracted as a single common certificate generation facility.

OpenSSL configurations

RSA certificates

EC certificates

These commands and options are quit similar to those in section RSA certificates.The main difference is the private key generation.

RSASSA-PSS certificates

These commands and options are almost the same as those in section RSA certificates.The only difference is the public key algorithm, of course rsa-pss here.

DSA certificates

These commands and options are quite similar to those in section RSA certificates.The main difference is that it needs to generate key parameters before generating key.

Released:

A lightweight and fast pure python ECDSA library

Project description

A lightweight and fast pure Python ECDSA

Overview

We tried other Python libraries such as python-ecdsa, fast-ecdsa and other less famous ones, but we didn't find anything that suited our needs. The first one was pure Python, but it was too slow. The second one mixed Python and C and it was really fast, but we were unable to use it in our current infrastructure, which required pure Python code.

For this reason, we decided to create something simple, compatible with OpenSSL and fast using elegant math such as Jacobian Coordinates to speed up the ECDSA. Starkbank-ECDSA is fully compatible with Python2 and Python3.

Installation

To install StarkBank`s ECDSA-Python, run:

Curves

We currently support secp256k1, but it's super easy to add more curves to the project. Just add them on curve.py

Speed

We ran a test on a MAC Pro i7 2017. The libraries were run 100 times and the averages displayed bellow were obtained:

Our pure Python code cannot compete with C based libraries, but it's 6x faster to verify and 23x faster to sign than other pure Python libraries.

Sample Code

How to sign a json message for Stark Bank:

Simple use:

OpenSSL

This library is compatible with OpenSSL, so you can use it to generate keys:

Create a message.txt file and sign it:

To verify, do this:

You can also verify it on terminal:

NOTE: If you want to create a Digital Signature to use with Stark Bank, you need to convert the binary signature to base64.

You can do the same with this library:

Run unit tests

Ecdsa Key Generation

Release historyRelease notifications

1.0.0

0.1.9

0.1.8

0.1.7

0.1.6

Openssl Ecdsa With Sha256

0.1.5

0.1.4

0.1.3

0.1.2

0.1.1

0.1

Public Key Definition

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Ecdsa Online

Hashes for starkbank-ecdsa-1.0.0.tar.gz

Symmetric Key