openstack/python-keystoneclient
Code Issues Proposed changes

Adds bandit nosec flag to hashlib.sha1

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A bandit patch to block sha1 hash is failing CI [1], due to a false
positive on hashlib.sha1 (which actually uses HMAC-SHA1 in keystone
that is considered more secure then standard SHA1)

This change marks a # nosec comment against the line which is
triggering the false positive in Bandit.

[1] https://review.openstack.org/#/c/437563/6

Change-Id: Ib9618119c77f41fba0e612e37c7511676bed47e8
This commit is contained in:
lhinds
2017-08-31 14:16:46 +01:00
committed by Gage Hugo
parent 3593e7d977
commit b29f478f28
1 changed files with 3 additions and 1 deletions
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4
keystoneclient/session.py
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@@ -169,7 +169,9 @@ class Session(object):
secure_headers = ('authorization', 'x-auth-token', secure_headers = ('authorization', 'x-auth-token',
'x-subject-token', 'x-service-token') 'x-subject-token', 'x-service-token')
if header[0].lower() in secure_headers: if header[0].lower() in secure_headers:
token_hasher = hashlib.sha1() # hashlib.sha1() bandit nosec, as it is HMAC-SHA1 in
# keystone, which is considered secure (unlike just sha1)
token_hasher = hashlib.sha1() # nosec(lhinds)
token_hasher.update(header[1].encode('utf-8')) token_hasher.update(header[1].encode('utf-8'))
token_hash = token_hasher.hexdigest() token_hash = token_hasher.hexdigest()
return (header[0], '{SHA1}%s' % token_hash) return (header[0], '{SHA1}%s' % token_hash)