SSL Certification Import

Are you sure this is a PEM certificate in the first place?

Please, try this:

$ file WC_2019.crt

If it is a PEM certificate, you should see something similar to this:

$ file client.crt client.crt: PEM certificate

In case you confirm this is indeed a PEM encoded certificate, please check for extra space characters as this could be a badly formatted certificate.

This is how my client.crt looks like (just to give you an idea):

$ cat client.crt -----BEGIN CERTIFICATE----- MIID+jCCAeICAQEwDQYJKoZIhvcNAQEFBQAwgYIxCzAJBgNVBAYTAlVLMQ8wDQYD VQQIDAZTdXJyZXkxETAPBgNVBAcMCENoZXJ0c2V5MRQwEgYDVQQKDAtGNSBOZXR3 b3JrczELMAkGA1UECwwCRVMxEDAOBgNVBAMMB2x0bXJvb3QxGjAYBgkqhkiG9w0B CQEWC3Jvb3RAZjUuY29tMB4XDTE2MDgxMTE0NTAxMFoXDTE4MDgxMTE0NTAxMFow gYYxCzAJBgNVBAYTAlVLMQ8wDQYDVQQIDAZTdXJyZXkxGTAXBgNVBAcMEFdhbHRv bi1vbi1UaGFtZXMxDTALBgNVBAoMBFVGUEIxFzAVBgNVBAMMDnJvZHJpZ28tdWJ1 bnR1MSMwIQYJKoZIhvcNAQkBFhRkaWdvZmFyaWFzQGdtYWlsLmNvbTCBnzANBgkq hkiG9w0BAQEFAAOBjQAwgYkCgYEAwET8toIc6pF2m7+8KGTZjMfS8OQjT0QJ8/6F ZN2QKOHxQYF89noy+tczblwdIHlLn5FoDpooptyuqoM/7pFXwiPad/Yknm1AEpzO cggX8M3fx/yA5diwkc1pRmaHP3yt3zGDOpDbLQ87MxR+fOkUK4QVL3YFYXT6W4kY RgTKmc0CAwEAATANBgkqhkiG9w0BAQUFAAOCAgEAnp9If3iUyIRCex0zBzEm2KEc BQJV/7kanyBImwp1KrmYhTvevDPoY6XgybxuCpkfUJnrN5M2X7x/GxS0v2QdLud9 6ckhscpx0ZKrolT5e8Oj8czfyaTEEW9hD9ZdJhK5QTAOynIj4JeibU09sZp8Mm0I bZp4dHfCTlJdN3RqbR1JKZJNqXNtJBy24QdjiNScGsCL6+xkHlbj/CbJlZQnocDd hbYStB8KICjuyPmyQ+mU6mbmq+7QgcNx9uTCTxeV+JhwwwGB9rCZOT4agsViHflG w9PcYue3TOghrH70F2f2RXzlO3L/HDm63T2WN2PA2YENUkajPthWmhITG1upAMWD ahG97yjXdBOVMtCbHudWiEvKVdjidoIpoT/+2XzgkxISUWyqnE9ysPSc5k2K9c7c cSKDN+zR8h9xHe1w83q7fcsRWpAmquMP59dVdVrON9EVMcjiFPLohw6T0roA9doT eio8eeeePi2fIW2I6U54FmnqGrLCud5XFC7zgVGI85uZYjHy4/mJ1R8J/fYjv7Ss TFTRsQBQLfpW45itPWAyfWsAFL6Tx qH5x0pXJZiH4WEzhWRx8DOCRnuXQCBZ7ds/3HXICCi4LhectzI4rJUSCEcuGEv6A K7Jk/nGV7x7ojGX1mHw= -----END CERTIFICATE-----

Guessing the certificate is not a valid x509 file. You may find the format is incorrect i.e. you have a DER encoded certificate and so need to convert to a PEM (none encoded certificate).

If you open the certificate file in a text editor should start with something like

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

You can use

openssl

openssl x509 -in cert.crt -inform der -outform pem -out cert.pem

Taking Rodrigo's suggestion, I noticed that my certificate had blank lines between the text. I removed them, and it is working now.