pycoin | Python-based Bitcoin and alt-coin utility library | Cryptocurrency library

by richardkiss Python Version: 0.92.20230326 License: MIT

X-Ray Key Features Code Snippets(4)Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | pycoin Summary

pycoin is a Python library typically used in Financial Services, Fintech, Blockchain, Cryptocurrency, Bitcoin applications. pycoin has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can install using 'pip install pycoin' or download it from GitHub, PyPI.

The pycoin library implements many utilities useful when dealing with bitcoin and some bitcoin-like alt-coins. It has been tested with Python 2.7, 3.6 and 3.7. See also [pycoinnet] for a library that speaks the bitcoin protocol.

Support

Quality

Security

License

Reuse

Support

pycoin has a medium active ecosystem.

It has 1335 star(s) with 548 fork(s). There are 79 watchers for this library.

It had no major release in the last 12 months.

There are 40 open issues and 165 have been closed. On average issues are closed in 582 days. There are 6 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of pycoin is 0.92.20230326

Quality

pycoin has 0 bugs and 0 code smells.

Security

pycoin has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

pycoin code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

pycoin is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

pycoin releases are not available. You will need to build from source code and install.

Deployable package is available in PyPI.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

It has 14238 lines of code, 1340 functions and 265 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed pycoin and discovered the below as its top functions. This is intended to give you an instant insight into pycoin implemented functionality, and help decide if they suit your requirements.

Create a Bitcoinish network
Return the script for the given info
Make an AddressAPI for the given script
Compile a binary expression
Create argument parser
Arguments for read messages
Iterate over all available networks
Return the current netcode
KU
Parse a signed message
Post - unpack a merkleblock
Return an iterator that yields blocks from a blockfile
Create OpenSSL optimizations
Return public key pair
Performs OP_CHECKSEQUENCE verification
Sign a message
Multiply a point by p
Creates an unsigned tx for the given address
Yield the ku output for a given address
Get the best ripemd160 hash
Return a dict with extra opcodes
Multiply a given value by p
Signs the contents of the transaction
Load the library
Create a function that returns a signature for the given script
Generate a single transaction

Get all kandi verified functions for this library.

pycoin Key Features

No Key Features are available at this moment for pycoin.

pycoin Examples and Code Snippets

ECDSA Sign / Verify using the secp256k1 Curve and SHA3-256

Python

Lines of Code : 46

License : No License

Copy

from pycoin.ecdsa import generator_secp256k1, sign, verify
import hashlib, secrets

def sha3_256Hash(msg):
    hashBytes = hashlib.sha3_256(msg.encode("utf8")).digest()
    return int.from_bytes(hashBytes, byteorder="big")

def signECDSAsecp256k1(msg

ECDSA: Sign / Verify - Examples

Python

Lines of Code : 1

License : No License

Copy

pip install pycoin

Python 2.7, Too many values to unpack

Python

Lines of Code : 110

License : Strong Copyleft (CC BY-SA 4.0)

Copy

repo_name, path, pkey = line.split(",")

sobakasu/vanitygen,README,5JLUmjZiirgziDmWmNprPsNx8DYwfecUNk1FQXmDPaoKB36fX1o
lekanovic/pycoin,tests/build_tx_test.py,5JMys7YfK72cRVTrbwkq5paxU7vgkMypB55KyXEtN5uSnjV7K8Y
wkit

how to create the address of litecoin using pycoin library?

Python

Lines of Code : 6

License : Strong Copyleft (CC BY-SA 4.0)

Copy

def secret_exponent_to_wif(se, compressed):
    blob = to_bytes_32(se)
    if compressed:
        blob += b'\01'
    return BitcoinMainnet.ui.wif_for_blob(blob)

Community Discussions

Trending Discussions on pycoin

Bouncy Castle C#: How do I define a curve and points in order to test/play with EC point arithmetic?

QUESTION

Bouncy Castle C#: How do I define a curve and points in order to test/play with EC point arithmetic?

Asked 2020-Aug-14 at 03:27

I had a simple EC library for C#, but it is gone and I can't find it on the web. It was previously published on MSDN, but the link is now dead.

I am trying to use the Bouncy Castle Library to accomplish similar tasks. I want to Create a curve (secp256k1), and I want to be able to do point arithmetic and view the raw point data.

i.e.:

G + 3 * G = 4 * G

p + q

4 * G - G = 3 * G

etc.

What namespaces do I need to include, how do I define / declare the curve, and how do I define my points? I have successfully (I believe...) included the Bouncy Castle .dll in my C# project.

I am NOT interested in creating keys or anything of that sort. Just EC point arithmetic. A different (simple) library that would allow me to do the these same operations would be just as good or better.

Thanks for the help.

EDIT: I have continued to work on this, and my code looks like this:

...

ANSWER

Answered 2020-Aug-14 at 03:27

Short answer: Use ECPoint.Normalize to return an ECPoint whose (X, Y) coordinates can be compared to PyCoin.

Details: By default (BouncyCastle's) ECPoint operations are performed in projective coordinates; specifically what are usually called "Jacobian modified coordinates". This is for performance when performing a series of operations, especially a scalar multiplication. If you print out the value of e.g. twoG using the provided ECPoint.ToString method, you will see the extra coordinates present.

When you want to compare an ECPoint to some (X, Y) value, you can call ECPoint.Normalize, which returns a new ECPoint where the Z coordinate is 1 and the X and Y coordinates are the affine values. It is a relatively expensive operation that is usually avoided until the final step of a larger calculation.

Source https://stackoverflow.com/questions/63400700

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install pycoin

You can install using 'pip install pycoin' or download it from GitHub, PyPI.
You can use pycoin like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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