What is a digital signature?
Digital signatures, digital signature authentication services in particular and digital Identity in general play an important role and are the deciding factor in realizing the digital transformation of government and business services. Widely implementing digital signatures provides trust and reliability for individuals, businesses, and organizations conducting transactions in the electronic environment. Digital signatures simplify processes for service providers and eliminate barriers to adoption.
Digital signatures also empower individuals and businesses to engage in international trade, international payments and innovate cross-border services. This facilitates cross-border payments, enhances data protection in international commercial transactions, and creates an environment for entrepreneurs to propose innovative business ideas to promote the expansion of the digital economy.
Digital signatures are based on RSA technology - public-key cryptography. Each user has a key pair consisting of a private key and a public key.
- Private Key: This key, part of the key pair, is used to create digital signatures and belongs to the asymmetric cryptography system.
The private key is stored in a secure key storage device, cannot be extracted or copied, and only the owner of the key pair knows it.
- Public Key: This key, also part of the key pair, is used to verify digital signatures. It is created by the corresponding private key in the key pair and belongs to the asymmetric cryptography system. The public key is widely published on the user's digital certificate for convenient lookup of digital signature information. It is challenging to trace back to the private key.