Public Key Infrastructure, or PKI, for short is the standard used for digital signatures today. This standard incorporates the usage of a private key and a public key. Without these two keys, the digital signature cannot be authenticated as being original. The private key is stored on the computer of the person, who signed the electronic document. They will need to issue a digital certificate with a public key and provide this certificate to anyone, who will need to authenticate their electronic documents.
PKI Helps Authenticate a Digital Signature
How does PKI help to authenticate a digital signature? It starts by comparing the encrypted private key using the public key to decrypt the data. While the two keys are completely different and never the same, they both will arrive at the same mathematical results. The algorithms used to reach the result should also be different, but the numbered pairing will be in the same sequence and must match.