def verify_data_payload(data_payload, data_pubkey, sigb64):
"""
Given a payload, verify that the signature covers
its netstring representation (i.e. 'len(data_payload):data_payload,')
"""
data_txt = serialize_data_payload(data_payload)
res = verify_raw_data(data_txt, data_pubkey, sigb64)
return res
def verify_data_tombstone(signed_tombstone, data_pubkey):
"""
Verify the authenticity of a data tombstone
"""
parts = signed_tombstone.rsplit(":", 1)
if len(parts) != 2:
return False
tombstone_data, sigb64 = parts[0], parts[1]
return verify_raw_data(tombstone_data, data_pubkey, sigb64)