An electronic contract is a contract method that uses an electronic contract created in a data format such as PDF instead of a paper contract. Since electronic data is easy to edit, integrity is ensured by two technical mechanisms: "time stamps" and "electronic signatures." Related article: What is an electronic contract? | Advantages and disadvantages, commentary on recommended services | jinjerBlog 1-1. Timestamp A time stamp is a mechanism to prove the date and time when the creation of the electronic contract was completed and that no edits have been made since then.
Even if a document is suspected of being falsified after the contract is concluded, it is possible to confirm whether or not the data has been edited by comparing it with the information recorded in the time stamp. The hash value of the document data recorded in the time stamp is used to prove that the electronic contract has not been falsified. A hash value is a numn Cambodia phone number list aerical value unique to electronic data given by a function, and the value will change if the data is tampered with even slightly. 1-2. Electronic signature An electronic signature is, as the name suggests, an electronic signature attached to an electronic contract.
Broadly speaking, there are two types: “participant type” and “witness type”. The party type is an electronic signature that gives a signature based on an electronic certificate by the contractor's operation. On the other hand, in the witness type, after the electronic signature business confirms the identity using e-mail authentication, etc., the electronic signature is attached on behalf of the party. Check out this article for more detailed comparisons. Related article: What are witness type and party type of electronic contract? Advantages and disadvantages, explanation of how to choose | jinjerBlog 2.Evidence strength in litigation of electronic data and electronic contracts.