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What is the purpose of the public key part of the certificate?
A public key certificate is a digitally signed document that serves to validate the sender’s authorization and name.
How does PKI certificate work?
It works by using two different cryptographic keys: a public key and a private key. By using a two-key encryption system, PKI secures sensitive electronic information as it is passed back and forth between two parties, and provides each party with a key to encrypt and decrypt the digital data.
Does a public key stay the same when a certificate?
The CA copies the public key from the CSR to the Certificate. When you create the CSR it is up to you what key you put in it. You can choose to use the same key as last time, you can chooose to use a freshly generated key, you can choose to use a key you just pulled out of your cold storage vault, it’s all up to you.
Which is the unique identifier for a certificate?
Subject Unique ID: A unique identifier for the certificate subject as defined by the issuing CA; Version 3 certificates added the following extensions: Authority Key Identifier: This can be one of two values: The subject of the CA and serial number of the CA certificate that issued this certificate
What is the role of certificate services in PKI?
Microsoft Certificate Services Role Certificate Services is one foundation for the Public Key Infrastructure (PKI) that provides the means for safeguarding and authenticating information. The relationship between a certificate holder, the certificate holder’s identity, and the certificate holder’s public key is a critical portion of PKI.
How is identity information used in a certificate request?
Details of your identity are included in the certificate request. After the request is generated, it is submitted to a certification authority (CA). The CA then uses your identity information to determine whether the request meets the CA’s criteria for issuing a certificate.