The invention belongs to the technical field of
Internet of Things data security, and provides an
Internet of Things data
confidentiality reading method and
system based on a block chain, traced key fragments in a plurality of key fragments on the block chain are analyzed, the overall leakage difficulty degree of the multi-key fragments is evaluated, and for a storage hard disk with a relatively
low leakage difficulty evaluation value, the leakage difficulty of the storage hard disk is evaluated. For a hard disk with high risk,
key management needs to be enhanced, when a multi-key fragment easy-to-divulge
signal is generated, a reference time consumption interval is acquired, and dynamic
delay optimization operation is performed on time consumption for reading the traced key in the whole multi-key fragment according to the reference time consumption interval, so that the time consumption of the traced key in the whole multi-key fragment is reduced, and the time consumption of the traced key in the whole multi-key fragment is reduced. According to the method, different traced key fragments are endowed with different
delay adjustment amounts according to the traced reading
delay adjustment interval, the reading time consumption difference is increased, and the analysis and prediction difficulty of an attacker is increased, so that
attack behaviors are effectively resisted, and the
confidentiality of
Internet of Things data in a block chain environment is guaranteed.