Why electronic signatures and electronic seals have gradually replaced traditional signatures and seals?

With the advent of the digital era, why can electronic signatures replace handwritten signatures and seals? Why the electronic signature of the document can replace the paper documents? Let's analyze it from the technical point of view.

Handwritten signature can prove what? The first is to prove who signed, even if you do not recognize, that can go to forensics. Secondly, if the document is tampered with after signing, it may be discovered. Third, the signing of the time point can be roughly confirmed, through the handwritten time and the identification of ink to deduce the approximate time of signing. In fact, from the evidence point of view, paper documents can play the role of these three.

So if the electronic signature document also has these three functions, is it possible to replace the handwritten signature of the document? In fact that's exactly what it is. Nowadays, digital signatures are the most reliable form of electronic signatures, and electronically signed documents can fulfill the three requirements just mentioned.

The first is to identify the identity of the signature, through key elements or technologies including but not limited to name, ID card, cell phone number, fingerprints and face recognition, can ensure the authenticity of the subject of the electronic contract signing.

The second is tamper-proof, through the hash algorithm, the international hash algorithm is an algorithm is used to a specific document will be calculated, will get the string code, the string code is altered means that the document is not altered.

The third is the determination of time, electronic contracts can be confirmed by a third party time taking technology to confirm the time of signing the document, and do not need experts to determine, directly access to relevant information.

In short, electronic signatures instead of handwritten signatures is the inevitable trend of the digital paperless era.