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#!/usr/bin/env python
""" This is a util to dump the SCTs contained within a
SignedCertificateTimestampList structure.
This structure is used to represent a collection of SCTs being passed over
a TLS handshake. See RFC6962 section 3.3 for more details. """
import sys
from ct.proto import client_pb2
from ct.serialization import tls_message
def dump_sctlist(sct_list):
"""Prints the proto representation of the SCTs contained in sct_list.
Arguments:
sct_list the packed SignedCertificateTransparencyList structure.
"""
tr = tls_message.TLSReader(sct_list)
sctlist = client_pb2.SignedCertificateTimestampList()
tr.read(sctlist)
for s in sctlist.sct_list:
sct = client_pb2.SignedCertificateTimestamp()
tls_message.decode(s, sct)
print sct
if __name__ == "__main__":
if len(sys.argv) == 1:
print "Usage: dump_sctlist.py <file_containing_sct_list>"
sys.exit(1)
with open(sys.argv[1]) as f:
data = f.read()
dump_sctlist(data)
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