December 22, 2021 by Admin
A digital signature using a public key infrastructure (PKI) will:
- not ensure the integrity of a message.
- rely on the extent to which the certificate authority (CA) is trusted.
- require two parties to the message exchange.
- provide a high level of confidentiality.
The certificate authority (CA) is a trusted third party that attests to the identity of the signatory, and reliance will be a function of the level of trust afforded the CA. A digital signature would provide a level of assurance of message integrity, but it is a three-party exchange, including the CA. Digital signatures do not require encryption of the message in order to preserve confidentiality.