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SSL Certificate format conversion-HTTPS SSL tutorial

Convert CER/CRT to PEM

These two formats of certificates can be converted by directly modifying the certificate file extension, such as renaming "server.crt" to "server.pem" directly.

Convert PFX to PEM

The PFX format generally appears in windows server and can be converted by the openssl command.

Extract the private key: openssl pkcs12-in certname.pfx-nocerts-out key.pem-nodes

Extraction certificate: openssl pkcs12-in certname.pfx-nokeys-out cert.pem

Convert P7B to PEM

The P7B format generally appears in windows server and tomcat and can be converted by the openssl command.

Certificate conversion: openssl pkcs7-print_certs-in incertificat.p7b-out outcertificate.cer

Obtain the content of [--BEGIN CERTIFICATE--,-- END CERTIFICATE--] in outcertificat.cer, save it in pem format and upload it as a certificate.

Private key conversion: no private key

Convert DER to PEM

The DER format generally appears on the java platform.

Certificate conversion: openssl x509-inform der-in certificate.cer-out certificate.pem

Private key conversion: openssl rsa-inform DER-outform PEM-in privatekey.der-out privatekey.pem

The converted certificate file (* .pem) should be in a format similar to the following (can be opened using a text editor such as notepad++):

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