Digital self-written system, digital self-written verification apparatus, method and program

摘要

[PROBLEMS] To easily complete a procedure that requires a user's signature on a document and to verify that a user has signed and confirmed the document. A document generation server generates an original document PDF file in which input information is formed with a predetermined layout template, displays the original document PDF file, and accepts an input of the own document and an original document PDF A web page including the file location information is generated and transmitted to the information terminal device 200. The information terminal device 200 displays a web page, accepts input of the self-written document, calculates a hash value from the source document PDF file, generates self-written information based on the self-written document, and generates self-written information including the hash value as a document. Send to server 100. The document generation server 100 generates a self-written PDF file in which self-written information including a hash value is added to the original document PDF file, and assigns an electronic signature and a time stamp to the generated self-written PDF file. [Selection] Figure 2