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Description:

requestshttpsignaturejaywink 0.1.0.dev0

requests-http-signature is a Requests authentication plugin (requests.auth.AuthBase subclass) implementing
the IETF HTTP Signatures draft RFC. It has no required
dependencies outside the standard library. If you wish to use algorithms other than HMAC (namely, RSA and ECDSA algorithms
specified in the RFC), there is an optional dependency on cryptography.

Installation
$ pip install requests-http-signature

Usage
import requests
from requests_http_signature import HTTPSignatureAuth

preshared_key_id = 'squirrel'
preshared_secret = 'monorail_cat'
url = 'http://example.com/path'

requests.get(url, auth=HTTPSignatureAuth(key=preshared_secret, key_id=preshared_key_id))
By default, only the Date header is signed (as per the RFC) for body-less requests such as GET. The Date header
is set if it is absent. In addition, for requests with bodies (such as POST), the Digest header is set to the SHA256
of the request body and signed (an example of this appears in the RFC). To add other headers to the signature, pass an
array of header names in the header keyword argument.
In addition to signing messages in the client, the class method HTTPSignatureAuth.verify() can be used to verify
incoming requests:
def key_resolver(key_id, algorithm):
return 'monorail_cat'

HTTPSignatureAuth.verify(request, key_resolver=key_resolver)

Asymmetric key algorithms (RSA and ECDSA)
For asymmetric key algorithms, you should supply the private key as the key parameter to the HTTPSignatureAuth()
constructor as bytes in the PEM format:
with open('key.pem', 'rb') as fh:
requests.get(url, auth=HTTPSignatureAuth(algorithm="rsa-sha256", key=fh.read(), key_id=preshared_key_id))
When verifying, the key_resolver() callback should provide the public key as bytes in the PEM format as well:

Links

IETF HTTP Signatures draft
https://github.com/joyent/node-http-signature
Project home page (GitHub)
Documentation (Read the Docs)
Package distribution (PyPI)
Change log

Bugs
Please report bugs, issues, feature requests, etc. on GitHub.

License
Licensed under the terms of the Apache License, Version 2.0.