Script to generate root certificates on machines without useful OpenSSL. See #768.

svn path=/trunk/; revision=6090

1 files changed, 62 insertions, 0 deletions

diff --git a/potpourri/generate-root-certificate b/potpourri/generate-root-certificate
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+#!/usr/bin/env python
+
+"""
+Generate an RPKI root certificate for rootd.  In most cases you should
+not need to do this; see caveats in the manual about running rootd if
+you think you need this.  This script does nothing that can't also be
+done with the OpenSSL command line tool, but on some platforms the
+installed copy of openssl doesn't understand the RFC 3779 extensions.
+"""
+
+import os
+import sys
+import time
+import argparse
+import rpki.x509
+import rpki.config
+import rpki.sundial
+import rpki.resource_set
+
+os.environ["TZ"] = "UTC"
+time.tzset()
+
+parser = argparse.ArgumentParser(description = __doc__)
+parser.add_argument("-c", "--config",                          help = "configuration file")
+parser.add_argument("-a", "--asns",  default = "0-4294967295", help = "ASN resources")
+parser.add_argument("-4", "--ipv4",  default = "0.0.0.0/0",    help = "IPv4 resources")
+parser.add_argument("-6", "--ipv6",  default = "::/0",         help = "IPv6 resources")
+parser.add_argument("--certificate", default = "root.cer",     help = "certificate file")
+parser.add_argument("--key",         default = "root.key",     help = "key file")
+parser.add_argument("--tal",         default = "root.tal",     help = "TAL file")
+args = parser.parse_args()
+
+cfg = rpki.config.parser(args.config, "rootd")
+
+resources = rpki.resource_set.resource_bag(
+  asn = rpki.resource_set.resource_set_as(args.asns),
+  v4  = rpki.resource_set.resource_set_ipv4(args.ipv4),
+  v6  = rpki.resource_set.resource_set_ipv6(args.ipv6))
+
+keypair = rpki.x509.RSA.generate(quiet = True)
+
+sia = cfg.get("rpki-base-uri")
+sia = (sia, sia + "root.mft", None)
+
+uri = cfg.get("rpki-root-cert-uri")
+
+cert = rpki.x509.X509.self_certify(
+  keypair     = keypair,
+  subject_key = keypair.get_public(),
+  serial      = 1,
+  sia         = sia,
+  notAfter    = rpki.sundial.now() + rpki.sundial.timedelta(days = 365),
+  resources   = resources)
+
+with open(args.certificate, "wb") as f:
+  f.write(cert.get_DER())
+
+with open(args.key, "wb") as f:
+  f.write(keypair.get_DER())
+
+with open(args.tal, "w") as f:
+  f.write(uri + "\n\n" + keypair.get_public().get_Base64())