IMP1A / CA signed certificate

My company wants to register with, and one of the requirement is to get two certificate (see attached)
about CA signed certificate (RSA 2048 bits). Do you know where i can buy it?
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Ganesh Kumar ASr Infrastructure SpecialistCommented:
You can by from digicert, godaddy for the X.509 certificates which costs some $.

For internal certificate if you have windows server you can configure self-signed certificate by installing root CA roles. Here is the step by step document :
ITsolutionWizardAuthor Commented:
from digicert and, can you specific which one I should get? I am very new about this.
Ganesh Kumar ASr Infrastructure SpecialistCommented:
There are many service provider offer the certificate. The digicert and godaddy are examples. Verisign and Digicert is bit expensive but godaddy is little cheaper. You need to search in google to find the certificate providers and choose the best. Since it is SSL certificate you can use this website to find which one suits for you :

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