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README.rst

Python http-signature

Sign http requests with secure signatures.

Requirements

  • PyCrypto

Optional:

  • ssh or paramiko >= 1.8.0 (for ssh-agent integration)
  • requests

Usage

for simple raw signing:

import http_signature

sig_maker = http_signature.Signer(secret='test.pem', algorithm='rsa-sha256')
sig_maker.sign('hello world!')

for use with requests:

import json
import requests
from http_signature.requests_auth import HTTPSignatureAuth

auth = HTTPSignatureAuth(key_id='Test', secret='test.pem')
z = requests.get('https://api.joyentcloud.com/my/packages/Small+1GB',
                         auth=auth, headers={'X-Api-Version': '~6.5'})

Class initialization parameters

http_signature.Signer(secret='', algorithm='rsa-sha256', allow_agent=False)

secret, in the case of an rsa signature, is a path to a private RSA pem file. In the case of an hmac, it is a secret password. algorithm is one of the six allowed signatures: rsa-sha1, rsa-sha256, rsa-sha512, hmac-sha1, hmac-sha256, hmac-sha512. allow_agent uses the ssh package to find an ssh-agent instance running, and uses that to sign all requests. Note that if so, this overrides manual selection of the signing algorithm to rsa-sha1.

http_signature.requests_auth.HTTPSignatureAuth(key_id='', secret='', algorithm='rsa-sha256', headers=None, allow_agent=False)

key_id is the label by which the server system knows your RSA signature or password. headers is the list of HTTP headers that are concatenated and used as signing objects. By default it is the specification's minimum, the Date HTTP header. secret, algorithm, and allow_agent are as above.

License

MIT

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