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    Converting CRT and PEM files to RSA

    IT Discussion
    ssl trend micro imsva openssl rsa godaddy certs
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    • scottalanmiller
      scottalanmiller last edited by

      Trying to load some certs into a Trend Micro IMSVA. IMSVA requires a very specific RSA format that we do not have. Trend's documentation is kinda useless as they don't give generic information, just one very specific example that is very different.

      https://success.trendmicro.com/solution/1122406-unable-to-import-https-certificate-in-interscan-messaging-security-virtual-appliance-imsva-9-1

      We've done this before using OpenSSL to convert LetsEncrypt files to IMSVA format no problem. But that's LetsEncrypt that we know. This one is, in theory, from GoDaddy. So probably not anything weird. Just not one that I know.

      1 Reply Last reply Reply Quote 0
      • scottalanmiller
        scottalanmiller last edited by

        I would mention that the GoDaddy bundle includes one CRT, one PEM, one KEY, and one Intermediary P7B

        JaredBusch 1 Reply Last reply Reply Quote 0
        • JaredBusch
          JaredBusch @scottalanmiller last edited by

          @scottalanmiller said in Converting CRT and PEM files to RSA:

          I would mention that the GoDaddy bundle includes one CRT, one PEM, one KEY, and one Intermediary P7B

          With those and openssl you can make whatever you need.

          scottalanmiller 1 Reply Last reply Reply Quote 0
          • scottalanmiller
            scottalanmiller @JaredBusch last edited by

            @JaredBusch said in Converting CRT and PEM files to RSA:

            @scottalanmiller said in Converting CRT and PEM files to RSA:

            I would mention that the GoDaddy bundle includes one CRT, one PEM, one KEY, and one Intermediary P7B

            With those and openssl you can make whatever you need.

            I would expect so. Any good guess on the syntax for this combination?

            JaredBusch 1 Reply Last reply Reply Quote 0
            • JaredBusch
              JaredBusch @scottalanmiller last edited by

              @scottalanmiller said in Converting CRT and PEM files to RSA:

              @JaredBusch said in Converting CRT and PEM files to RSA:

              @scottalanmiller said in Converting CRT and PEM files to RSA:

              I would mention that the GoDaddy bundle includes one CRT, one PEM, one KEY, and one Intermediary P7B

              With those and openssl you can make whatever you need.

              I would expect so. Any good guess on the syntax for this combination?

              Not anymore. I haven't done this stuff since I switch to using LE almsot everywhere. The memories are gone.

              scottalanmiller 1 Reply Last reply Reply Quote 0
              • scottalanmiller
                scottalanmiller @JaredBusch last edited by

                @JaredBusch said in Converting CRT and PEM files to RSA:

                @scottalanmiller said in Converting CRT and PEM files to RSA:

                @JaredBusch said in Converting CRT and PEM files to RSA:

                @scottalanmiller said in Converting CRT and PEM files to RSA:

                I would mention that the GoDaddy bundle includes one CRT, one PEM, one KEY, and one Intermediary P7B

                With those and openssl you can make whatever you need.

                I would expect so. Any good guess on the syntax for this combination?

                Not anymore. I haven't done this stuff since I switch to using LE almsot everywhere. The memories are gone.

                😞 Pretty hard to find any info on it online. Probably really simple, but you have to know the syntax.

                1 Reply Last reply Reply Quote 0
                • scottalanmiller
                  scottalanmiller last edited by

                  Found this which didn't help, but could be a useful reference in the future...

                  OpenSSL Convert PEM
                  Convert PEM to DER

                  openssl x509 -outform der -in certificate.pem -out certificate.der

                  Convert PEM to P7B

                  openssl crl2pkcs7 -nocrl -certfile certificate.cer -out certificate.p7b -certfile CACert.cer

                  Convert PEM to PFX

                  openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt

                  OpenSSL Convert DER
                  Convert DER to PEM

                  openssl x509 -inform der -in certificate.cer -out certificate.pem

                  OpenSSL Convert P7B
                  Convert P7B to PEM

                  openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer

                  Convert P7B to PFX

                  openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer

                  openssl pkcs12 -export -in certificate.cer -inkey privateKey.key -out certificate.pfx -certfile CACert.cer

                  OpenSSL Convert PFX
                  Convert PFX to PEM

                  openssl pkcs12 -in certificate.pfx -out certificate.cer -nodes

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