"ASN1_CHECK_TLEN:wrong tag" when importing a PEM certificate

Hi all

 

i'm having an issue on importing a certificate into the F5.

 

When i import the certificate, i'm having this error message: "Import Failed: Open SSL error: error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag

 

 

The certificate file began by:

 

 

---BEGIN CERTIFICATE---------------------

 

Proc-Type: 4, ENCRYPTED

 

DEK-Info: DES-EDE3-CBC,F488....

 

 

(And here the certificate code)

 

 

-----------END CERTFICATE------

 

 

Do i need to do somethink with open ssl befor importing the file?

 

How can i do to import it?

 

 

Thanks in advance for your help.