initial revision

1 files changed, 24 insertions, 0 deletions

diff --git a/tools/crmfdump.py b/tools/crmfdump.py
new file mode 100644
index 0000000..b23edf4
--- /dev/null
+++ b/tools/crmfdump.py
@@ -0,0 +1,24 @@
+# Read ASN.1/PEM X.509 CRMF request on stdin, parse into
+# plain text, then build substrate from it
+from pyasn1.codec.der import decoder, encoder
+from pyasn1_modules import rfc2511, pem
+import sys
+
+if len(sys.argv) != 1:
+    print("""Usage:
+$ cat crmf.pem | %s""" % (sys.argv[0],))
+    sys.exit(-1)
+    
+certReq = rfc2511.CertReqMessages()
+
+substrate = pem.readBase64FromFile(sys.stdin)
+if not substrate:
+    sys.exit(0)
+        
+cr, rest = decoder.decode(substrate, asn1Spec=certReq)
+
+print(cr.prettyPrint())
+
+assert encoder.encode(cr, defMode=False) == substrate or \
+       encoder.encode(cr, defMode=True) == substrate, \
+       'crmf recode fails'