Create PKCS12 file from private key and new certificate
If you want to assemble a new PKCS12 file (extension .p12 or .pfx) from an existing key and a new certificate, you can use the open source tool XCA.
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- Download XCA
- Run the setup and install the tool.
- From the File menu, choose New Database and enter any filename.
- Select the “Private Keys” tab and click on “Import”. Specify the private key file.
- Select the “Certificates” tab and click on “Import”. Specify file with the new certificate.
- Select the imported certificate and click “Export”.
- Select “PKCS#12 with certificate chain” as the export format and specify a target path.
- Enter an export password
- The database file created in point 3 is deleted again.
Create certificate without private key in PKCS12 format
Generation using openssl:
(The prompted password must remain blank, as the private key is not used)
openssl pkcs12 -nokeys -in [certificate-file-old].pem -export -out [certificate-file-new].p12
openssl pkcs12 -info -in [certificate-file-new].p12
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