The structure of the certification is standardized
The format of the actual certificate file can take many different forms. And this will read any file format
File format types:
1) DER - Distinguished Encoding rules.
2) PEM - Privacy Enhanced Mail
3) PKCS #12 - Public key cryptography standards #12
4) In windows CER file format - Certificate
5) PKCS #7 - Public key cryptography standards #7
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