2. Analysis: Digital signature technology is a typical application of asymmetric encryption algorithm.
3. Digital signature is to use public key cryptography and other cryptographic algorithms to generate a series of symbols and codes to form an electronic password for signature, rather than writing signatures and seals; This kind of electronic signature is also technically verifiable, and its verification accuracy is incomparable with manual signature and stamp verification in the physical world.
4. Digital signature is the most widely used, most mature and most operable electronic signature method in e-commerce and e-government. It uses standardized procedures and scientific methods to identify signers and approve electronic data content.
5. Digital signature is an encryption mechanism, which is used to verify the authenticity and integrity of numbers and data. We can regard it as a digital version of the traditional handwritten signature, which is more complex and secure than the signature. In short, we can understand a digital signature as a code attached to a message or document.