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توضیحات

Implementation of ClaimChain, a cryptographic data structure

ویژگی	مقدار
سیستم عامل	-
نام فایل	claimchain-0.3.1
نام	claimchain
نسخه کتابخانه	0.3.1
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Bogdan Kulynych (EPFL SPRING Lab), Marios Isaakidis, George Danezis (UCL)
ایمیل نویسنده	bogdan.kulynych@epfl.ch, m.isaakidis@cs.ucl.ac.uk, g.danezis@ucl.ac.uk
آدرس صفحه اصلی	-
آدرس اینترنتی	https://pypi.org/project/claimchain/
مجوز	MIT

.. image:: https://claimchain.github.io/claimchain.svg :width: 50px :alt: ClaimChain ############### claimchain-core ############### .. image:: https://travis-ci.org/claimchain/claimchain-core.svg?branch=master :target: https://travis-ci.org/claimchain/claimchain-core :alt: Build Status .. image:: https://readthedocs.org/projects/claimchain-core/badge/?version=latest :target: http://claimchain-core.readthedocs.io/en/latest/?badge=latest :alt: Documentation Status .. image:: https://zenodo.org/badge/92275408.svg :target: https://zenodo.org/badge/latestdoi/92275408 :alt: Zenodo Citation Installing ========== You can install ``claimchain`` via pip:: pip install claimchain To run tests, checkout the git repository and run tox:: git clone https://github.com/claimchain/claimchain-core cd claimchain-core tox Usage warning ============= This code is made for research purposes. It is not to be used in real-world systems. Not all security features are implemented, and some of the cryptographic instantiations need to be changed to more secure alternatives. Usage ===== High-level interface for ClaimChain consists of two classes, ``State`` for building claimchains, and ``View`` for parsing and interpreting claimchains. Building chains --------------- The core abstraction for the a ClaimChain user is a `state`. The `state` contains information about the user, and claims they make about other users or objects. Currently, this package only supports private claims, which means the owner of a chain needs to explicitly make every claim readable by intended readers. Once the `state` is constructed it can be committed to the chain. Here is how user `Alice` would prepare her `state`:: from claimchain import State state = State() # Alice adds information about herself state.identity_info = "Hi, I'm Alice" # Alice adds private claims state['bob'] = 'Bob is a good lad' Making claims accessible requires knowing the DH public key of each authorized reader. The way to obtain the DH keys of other users is described later. Assuming Alice has Carol's DH public key, ``carol_dh_pk``, she can allow Carol to access her claim about Bob:: state.grant_access(carol_dh_pk, ['bob']) Note that the second argument must be an iterable of claim labels, not a single label. To commit the state, first, a chain needs to be built, and second, the cryptographic keys have to be generated:: from hippiehug import Chain from claimchain import LocalParams, State state = State() # Generate cryptographic keys params = LocalParams.generate() store = {} chain = Chain(store) with params.as_default(): head = state.commit(chain) The chain can then be published or transmitted to other users by publishing the ``store`` and communicating the chain's ``head``. Other users will be able to interpret the chain using the ``View`` interface, described below. Interpreting chains ------------------- Having access to the store (dictionary) containing other user's chain, and a head of this user's chain, one can use the ``View`` interface. Here is how Carol can interpret Alice's claimchain, assuming Alice's store is ``alice_store``, the head of her chain is ``alice_head``, and ``params`` is Carol's ``LocalParams`` object:: from hippiehug import Chain from claimchain import View alice_chain = Chain(alice_store, root_hash=alice_head) with params.as_default(): alice_view = View(alice_chain) # Try to get claim with label 'bob' claim = alice_view['bob'] assert claim == b'Bob is a good lad' Finally, this is how Carol can retrieve Alice's DH public key:: alice_dh_pk = alice_view.params.dh.pk This DH public key can be later used to grant Alice rights to read claims on Carol's chain. This package ============ ======================= ======================================================= claimchain/state.py High-level ClaimChain interface claimchain/core.py Core operations of encoding claims and capabilities claimchain/crypto Cryptographic utilities, and algorithm implementations ======================= ======================================================= Simulations =========== A core and experimental implementation of ClaimChain, a cryptographic data structure. See the `web page <https://claimchain.github.io>`_ to learn about ClaimChain. Check out the `documentation <https://claimchain-core.readthedocs.io/en/latest>`_. Acknowledgements ================ This work is funded by the `NEXTLEAP project <https://nextleap.eu>`_ within the European Union’s Horizon 2020 Framework Programme for Research and Innovation (H2020-ICT-2015, ICT-10-2015) under grant agreement 688722.

نیازمندی

مقدار	نام
-	six
-	petlib
-	pyyaml
-	attrs
-	base58
-	statistics
-	defaultcontext
>=0.1.3	hippiehug
-	profiled

نحوه نصب

نصب پکیج whl claimchain-0.3.1:

pip install claimchain-0.3.1.whl

نصب پکیج tar.gz claimchain-0.3.1:

pip install claimchain-0.3.1.tar.gz