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# Copyright (C) 2016 The OpenTimestamps developers
#
# This file is part of python-opentimestamps.
#
# It is subject to the license terms in the LICENSE file found in the top-level
# directory of this distribution.
#
# No part of python-opentimestamps including this file, may be copied,
# modified, propagated, or distributed except according to the terms contained
# in the LICENSE file.
"""Convenience functions for creating timestamps"""
import os
from opentimestamps.core.op import OpAppend, OpSHA256
def nonce_timestamp(private_timestamp, crypt_op=OpSHA256(), length=16):
"""Create a nonced version of a timestamp for privacy"""
stamp2 = private_timestamp.ops.add(OpAppend(os.urandom(length)))
return stamp2.ops.add(crypt_op)
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