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Formatting a string to PEM with headers and line breaks

vac

vac

Formatting a string to PEM with headers and line breaks

Hi,

I’m quite new in Elixir and I’m trying to format a string to a PEM format. I have the certificate value like MIIDBTCCAe2...... and I need to convert it to

-----BEGIN CERTIFICATE-----
MIIDBTCCAe2......
....
-----END CERTIFICATE-----

Is there any library function that would do that for me?

Would appreciate if you could help.

Thanks in advance

7 comments
2 14808 7

Marked As Solved

voltone

voltone

If the input string is a base64 encoded certificate, there is no need to add the PEM headers just so the PEM parser can strip them off again. Just use Base.decode64!/1 to get the binary (DER) certificate.

In other words:

[{:Certificate, der, :not_encrypted}] = :public_key.pem_decode("-----BEGIN CERTIFICATE-----\n#{cert}\n-----END CERTIFICATE-----\n")

and

der = Base.decode64!(cert)

are equivalent.

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