A security engineer is configuring a system that requires the X.509 certificate information to be pasted into a
form field in Base64 encoded format to import it into the system. Which of the following certificate formats
should the engineer use to obtain the information in the required format?
A.
PFX
B.
PEM
C.
DER
D.
CER
PEM is correct.
Read https://morgansimonsen.com/2013/04/16/understanding-x-509-digital-certificate-thumbprints/
Often the binary data is converted to Base64 ASCII files. This is called Privacy Enhanced Email (PEM), and these files commonly have one of these extensions: .pem, .crt, .cer, and .key.
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Is the answer is DER??
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3
No, it’s PEM
The X.509 and PKCS
standards determine the specific formats for digital certificates, as well as the file types and
formats. Digital certificates come in a variety of file formats, including those with .cer and
.pem file extensions. Additionally, there is a variety of types of certificate files, and each
of these may fulfill a unique function in a PKI, such as a certificate request file. Digital
certificates can be stored on several types of media, such as USB sticks, mobile devices,
internal computer storage, and even centralized repositories on a network or the Internet.
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PEM–> is the most commonly used certificate format and can be used for just about any certificate type.
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