1, digital signature technology. Digital signature technology can digitally sign electronic contracts, documents and other documents through asymmetric encryption algorithm, which can ensure the authenticity and integrity of documents and prevent forgery and tampering.
2. Blockchain technology. Blockchain technology ensures the reliability and non-tampering of data through decentralization and distributed storage, and can prevent information from being tampered with and impersonated.
3. Biometric technology. Biometric technology can authenticate personal identity through fingerprint recognition, face recognition and iris recognition, and prevent impersonation and forgery.
4. Other technologies. Such as watermark technology, time stamp technology, etc. , is not a powerful technology to prevent tampering, denying forgery and impersonation, but it can provide some protection in specific application scenarios.