def get_context(self):
context = SSL.Context(SSL.TLSv1_2_METHOD)
context.set_options(SSL.OP_NO_TLSv1_2)
context.set_verify(SSL.VERIFY_PEER|SSL.VERIFY_FAIL_IF_NO_PEER_CERT, self.ssl_verify_cb)
context.set_ocsp_server_callback(self.ocsp_server_callback)
try:
context.use_privatekey_file(CertificateManager.get_cert_path(self.private_key))
context.use_certificate_file(CertificateManager.get_cert_path(self.certificate))
context.load_verify_locations(CertificateManager.get_cert_path(self.ca_certificate))
except SSL.Error:
print("Error: Could not load key and certificate files. Please make sure that you have run the setup.py"
"script before starting Server_old.py.")
return context
def __init__(self):
self.revoked_file_path = os.path.join(CertificateManager.get_cert_path(), "revoked.txt")
# Create the file if it does not exist
try:
if not os.path.exists(self.revoked_file_path):
revoked_file = open(self.revoked_file_path, "w")
revoked_file.close()
except IOError:
self.revoked_file_path = None
print("Error: OCSP responder could not be initiated.")
def setup(self, peer=None, epg=None):
# Load config
self.name = CONFIG["endpoints"]["server-name"]
self.address = CONFIG["endpoints"]["server-addr"]
self.port = CONFIG["endpoints"]["server-port"]
self.verbose = CONFIG["verbose"]
self.epg = epg
self.peer = peer
# Create Client peer
self.peer = EP(name=CONFIG["endpoints"]["client-name"],
address=CONFIG["endpoints"]["client-addr"],
port=CONFIG["endpoints"]["client-port"],
epg=CONFIG["endpoints"]["client-epg"])
# Load key material to create or request connection-specific certificate
server_pkey_name = CONFIG["pki"]["server-pkey-name"]
server_cert_name = CONFIG["pki"]["server-cert-name"]
if not CM.cert_file_exists(
server_pkey_name) or not CM.cert_file_exists(server_cert_name):
# Request certificate from RA
keys = CM.create_key_pair()
csr = CM.create_csr(keys)
request = CertificateRequest(self, self.peer, csr)
cert = self.ra.request_certificate(request)
if cert is None:
raise ConnectionError(
"Could not retrieve certificate needed to establish TLS connection."
)
# Save keys and certificate
CM.save_pkey(keys, server_pkey_name)
CM.save_cert(cert, server_cert_name)
self.cert = cert
self.keys = keys
else:
self.keys = CM.load_pkey(server_pkey_name)
self.cert = CM.load_cert(server_cert_name)
# Create context
self.context = SSL.Context(SSL.TLSv1_2_METHOD)
self.context.set_options(SSL.OP_NO_TLSv1_2)
self.context.set_verify(
SSL.VERIFY_PEER | SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
self.ssl_verify_cb)
self.context.set_ocsp_server_callback(self.ocsp_server_cb,
data=self.name)
self.context.use_privatekey(self.keys)
self.context.use_certificate(self.cert)
self.context.load_verify_locations(
CM.get_cert_path(CONFIG["pki"]["ca-cert-name"]))
def __init__(self, ca, psa):
# Arguments
self.ca = ca
self.ocsp_responder = ca.ocsp_responder
self.psa = psa(self)
self.cert = None
self.verbose = CONFIG["verbose"]
# Config
self.cert_dir = CertificateManager.get_cert_path()
self.default_key_type = crypto.TYPE_RSA
self.default_key_size = 2048
self.organisation = "Corporation Ltd"
self.setup()
def setup(self, peer, epg=None):
# Load config
self.name = CONFIG["endpoints"]["client-name"]
self.address = CONFIG["endpoints"]["client-addr"]
self.port = CONFIG["endpoints"]["client-port"]
self.verbose = CONFIG["verbose"]
self.epg = epg
self.peer = peer
# Load or request keys and certificate
client_pkey_name = CONFIG["pki"]["client-pkey-name"]
client_cert_name = CONFIG["pki"]["client-cert-name"]
self.ca_cert_name = CONFIG["pki"]["ca-cert-name"]
if not CM.cert_file_exists(
client_pkey_name) or not CM.cert_file_exists(client_cert_name):
# Request certificate from RA
keys = CM.create_key_pair()
csr = CM.create_csr(keys)
request = CertificateRequest(self, self.peer, csr)
cert = self.ra.request_certificate(request)
if cert is None:
raise ConnectionError(
"Could not retrieve certificate needed to establish TLS connection. "
"RA returned None.")
# Save keys and certificate
CM.save_pkey(keys, client_pkey_name)
CM.save_cert(cert, client_cert_name)
self.keys = keys
self.cert = cert
else:
self.keys = CM.load_pkey(client_pkey_name)
self.cert = CM.load_cert(client_cert_name)
# Define context
ctx = SSL.Context(SSL.TLSv1_2_METHOD)
ctx.set_verify(SSL.VERIFY_PEER | SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
self.ssl_verify_cb)
ctx.set_verify_depth(2)
ctx.use_privatekey(self.keys)
ctx.use_certificate(self.cert)
ctx.load_verify_locations(
CM.get_cert_path(CONFIG["pki"]["ca-cert-name"]))
ctx.set_ocsp_client_callback(self.ocsp_client_callback, data=self.name)
self.context = ctx
from OpenSSL import crypto
from acpki.pki import CertificateManager
import os
"""
This file creates the basic certificates needed to use the AC-PKI system. The program should be called from the general
config script. If files already exist, this script WILL NOT replace them by default. Note that certificate files ARE NOT
shared via Git and will therefore need to be created on each individual system.
"""
print("Setting up certificates...")
# Create certs directory if it does not already exist
if not os.path.exists(CertificateManager.get_cert_path()):
os.makedirs(CertificateManager.get_cert_path())
print("Created certs directory")
# Create CA certificate
if CertificateManager.cert_file_exists(
"ca.cert") and CertificateManager.cert_file_exists("ca.pkey"):
# Load existing
print("Loading existing CA certificate from file")
ca_cert = CertificateManager.load_cert("ca.cert")
ca_key_pair = CertificateManager.load_pkey("ca.pkey")
else:
# Generate new
print("Generating CA certificate")
ca_key_pair = CertificateManager.create_key_pair(crypto.TYPE_RSA, 2048)
csr = CertificateManager.create_csr(ca_key_pair,
C="NO",
ST="Oslo",
O="Corp",