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Friday, March 27, 2020

What is a Certificate Signing Request (CSR) and What information it contains?

March 27, 2020 Posted by jaacostan , ,
 A CSR or Certificate Signing request is a block of encoded text that is submitted to a Certificate Authority (CA) for a Signed Digital Certificate. The certificate authority will use a CSR to sign and create the Digital certificate. The CSR doesn't contain the Private Key. Remember that the Private Key is always secret and remains private to you. The certificate created with a particular CSR will only work with the private key that was generated with it. So if you lose the private key, the certificate will no longer work.

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So what are the information contains in a CSR?
  1. Common Name : The Fully Qualified Domain Name (FQDN) of the Server.   
  2. Organization  : Name of your company or organization.
  3. Organizational Unit : Department name
  4. City/Locality : City information
  5. State/County/Region : State or Region Information
  6. Country : Country information in ISO naming format. (For example USA is US, United Kingdom is UK, India is IN)
  7. Email address : Email contact information of the organization.
  8. Public Key : The public key of the server. 

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