The invention relates to a method for implementing a digital-forensics-oriented
digital evidence supervision chain. The method comprises the steps that first,
timestamp information, a data
package and an unique equipment identification number are extracted, then a Hash
algorithm is used for encrypting to form calibration, so that data supervision chain information is formed, and when errors happen to
digital evidence,
backtracking is conducted according to the data supervision chain to find the time and place in which problems happen. According to the method, the
timestamp information is added in the supervision chain information, the time of data changes is recorded, if a
third party tampers or deletes the data and the like, the time can be recorded, meanwhile, the Hash
algorithm is used for conducting signature validation on all the steps in the evidentiary process, and therefore the place where the errors happen to the
digital evidence is effectively positioned. The problem that in the prior art, the time and the place in which the errors happen to the digital evidence can not be uniquely positioned is solved, and the efficiency of
digital forensics work is improved.