Description of problem:
rhncfg-manager utility installed on a client registered to a FIPS enabled
Satellite does not work. All operations fail at login:

# rhncfg-manager list-channels
Using server name dhcp-37-127.lab.eng.brq.redhat.com
Username: admin
Password: 
Session error: (1, "While running 'config.rhn_login': caught\n<type 'exceptions.ValueError'> : error:060800A3:digital envelope routines:EVP_DigestInit_ex:disabled for fips\n")

Related server-side error:

Exception Handler Information
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/spacewalk/server/apacheRequest.py", line 123, in call_function
    response = apply(func, params)
  File "/usr/lib/python2.6/site-packages/spacewalk/server/configFilesHandler.py", line 108, in login
    return session.get_session()
  File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSession.py", line 75, in get_session
    return "%sx%s" % (self.session_id, self.digest())
  File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSession.py", line 68, in digest
    ctx = hashlib.new('md5')
  File "/usr/lib64/python2.6/hashlib.py", line 83, in __hash_new
    return _hashlib.new(name, string, usedforsecurity)
ValueError: error:060800A3:digital envelope routines:EVP_DigestInit_ex:disabled for fips


Version-Release number of selected component (if applicable):
Satellite 5.6

How reproducible:
Always

Steps to Reproduce:
1. Satellite 5.6 on a FIPS enabled RHEL machine
2. rhncfg-manager ... on a registered client

Actual results:
Above error.

Expected results:
rhncfg-manager works.

Additional info:
N/A