feat: initial implementation (#42)

Author: roks0n

.coveragerc

@@ -0,0 +1,2 @@
+[run]
+branch = True

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,71 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance, race,
+religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at info@ark.io. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][https://www.contributor-covenant.org], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html

.github/CONTRIBUTING.md

@@ -0,0 +1 @@
+Please see [CONTRIBUTING](https://docs.ark.io/developers/guidelines/contributing.html) for details before opening your pull request.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,32 @@
+‼️ **Contributions are closed**
+
+## Proposed changes
+
+Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue.
+
+## Types of changes
+
+What types of changes does your code introduce?
+_Put an `x` in the boxes that apply_
+
+- [ ] Bugfix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Refactoring (improve a current implementation without adding a new feature or fixing a bug)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Build (changes that affect the build system)
+- [ ] Docs (documentation only changes)
+- [ ] Test (adding missing tests or fixing existing tests)
+- [ ] Other... Please describe:
+
+## Checklist
+
+_Put an `x` in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code._
+
+- [ ] I have read the [CONTRIBUTING](https://docs.ark.io/developers/guidelines/contributing.html) documentation
+- [ ] Lint and unit tests pass locally with my changes
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] I have added necessary documentation (if appropriate)
+
+## Further comments
+
+If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

.gitignore

@@ -0,0 +1,12 @@
+__pycache__/
+*.egg-info/
+*.DS_Store
+*.sublime-*
+*.py[co]
+*.python-version
+*.eggs
+*.pytest_cache/
+.cache/
+build/
+dist/
+*.egg-info

.travis.yml

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+language: python
+python:
+  - 3.4
+  - 3.5
+  - 3.6
+cache: pip
+install:
+  - pip install .[test]
+before_script:
+  - flake8 .
+script:
+  - py.test -v -s --cov=crypto --cov-config=.coveragerc --cov-report xml
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+branches:
+  only:
+    - master
+    - develop

MANIFEST.in

@@ -0,0 +1 @@
+include config.ini

Makefile

@@ -0,0 +1,5 @@
+test:
+	py.test -v -s $(ARGS)
+
+lint:
+	flake8 .

README.md

@@ -6,24 +6,38 @@
 
 > A simple Cryptography Implementation in Python for the ARK Blockchain.
 
-[![Build Status](https://img.shields.io/travis/ArkEcosystem/python-crypto/master.svg?style=flat-square)](https://travis-ci.org/ArkEcosystem/python-crypto)
-[![Latest Version](https://img.shields.io/github/release/ArkEcosystem/python-crypto.svg?style=flat-square)](https://github.com/ArkEcosystem/python-crypto/releases)
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+[![Build Status](https://badgen.now.sh/travis/ArkEcosystem/python-crypto/master)](https://travis-ci.org/ArkEcosystem/python-crypto)
+[![Codecov](https://badgen.now.sh/codecov/c/github/arkecosystem/python-crypto)](https://codecov.io/gh/arkecosystem/python-crypto)
+[![Latest Version](https://badgen.now.sh/github/release/ArkEcosystem/python-crypto)](https://github.com/ArkEcosystem/python-crypto/releases/latest)
+[![License: MIT](https://badgen.now.sh/badge/license/MIT/green)](https://opensource.org/licenses/MIT)
 
-## Installation
+## Guide for contributing
 
-```bash
-...
-```
+Before you start contributing please take some time and check our official [Python Development Guidelines](https://github.com/ArkEcosystem/development-guidelines/blob/master/Python/README.md) which follow the widely accepted PEP8 Python Style Guide. 🖋
+
+1. Fork the repository on GitHub.
+2. Run the tests to confirm they all pass on your system. If they don’t, you’ll need to investigate why they fail. If you’re unable to diagnose this yourself raise it as a bug report.
+3. Make your change.
+4. Write tests that demonstrate your bug or feature.
+5. Run the entire test suite again, confirming that all tests pass including the ones you just added.
+6. Send a GitHub Pull Request. GitHub Pull Requests are the expected method of code collaboration on this project.
+
+If you have any questions, requests or ideas open an issue or ask us in #python on [ARK's Slack](https://ark.io/slack).
+
+## Documentation
+
+You can find installation instructions and detailed instructions on how to use this package at the [dedicated documentation site](https://docs.ark.io/developers/sdk/cryptography/python.html).
 
 ## Security
 
 If you discover a security vulnerability within this package, please send an e-mail to security@ark.io. All security vulnerabilities will be promptly addressed.
 
 ## Credits
 
+- [Rok Halužan](https://github.com/roks0n)
+- [Tomaž Šifrer](https://github.com/tsifrer)
 - [Brian Faust](https://github.com/faustbrian)
-- [All Contributors](../../../../contributors)
+- [All Contributors](../../contributors)
 
 ## License
 

config.ini

@@ -0,0 +1,14 @@
+[mainnet]
+epoch = 2017-03-21 13:00:00
+version = 23
+wif = 170
+
+[devnet]
+epoch = 2017-03-21 13:00:00
+version = 30
+wif = 170
+
+[testnet]
+epoch = 2017-03-21 13:00:00
+version = 23
+wif = 186