Medical biochemical detection report critical data tamper-proofing method

The invention discloses a medical biochemical detection report critical data tamper-proofing method. The method includes the following steps: step one, obtaining original data source C output by a medical biochemical detection device; step 2, extracting critical data S including identity information of people who are detected and critical parts of detection results from the obtained data source C; step 3, carrying out preprocessing over the critical data S and generating S'; step 4, embedding S into the original detection data C and guaranteeing integrality of generated data C' and visual imperceptibility of watermark; step 5, carrying out data conversion over S and then calculating a hash value H of the data; step 6, converting an H to a two-dimension code and displaying on the C' and printing so as to obtain a tamper-proofing detection report. The medical biochemical detection report critical data tamper-proofing method can effectively prevent manipulation over medical biochemical detection report critical data and data recovery after manipulation.