Alternatively, if you want to generate a PKCS12 from a certificate file (cer/pem), a certificate chain (generally pem or txt), and your private key, you need to use the following command: openssl pkcs12 -export -inkey yourprivatekey.key -in yourcertificate.cer -certfile yourchain.pem -out finalresult.pfx Linked Documentation. Create the PFX somewhere else (e.g. OpenSSL) and import the certificate afterwards as PFX. Create a new request (CSR) on the server and have the certificate reissued. The certificate will be issued again for free and can be imported to the existing private key. You can request the reissue yourself in the administration of your customer account.
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How to install SSL certificate on windows IIS.
Download OpenSSL For Windows Free
Use this SSL Converter to convert SSL certificates to and from different formats such as pem, der, p7b, and pfx. Different platforms and devices require SSL certificates to be converted to different formats. For example, a Windows server exports and imports .pfx files while an Apache server uses individual PEM (.crt, .cer) files. To use the SSL Converter, just select your certificate file and its current type (it will try to detect the type from the file extension) and then select what type you want to convert the certificate to and click Convert Certificate.
OpenSSL Convert PEM
Convert PEM to DER
x509 -outform der -in C:usersusernamedownloadsfoldercertificate.pem -out C:usersusernamedownloadsfoldercertificate.der
Convert PEM to P7B
crl2pkcs7 -nocrl -certfile certificate.cer -out certificate.p7b -certfile CACert.cer
Convert PEM to PFX
![]() pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt
OpenSSL Convert DER
Convert DER to PEM
x509 -inform der -in C:usersusernamedownloadsfoldercertificate.cer -out C:usersusernamedownloadsfoldercertificate.pem
OpenSSL Convert P7B
Convert P7B to PEM
pkcs7 -print_certs -in certificate.p7b -out certificate.cer
Convert P7B to PFX
pkcs7 -print_certs -in certificate.p7b -out certificate.cer
Openssl Generate Cert And Key From Pfx Macpkcs12 -export -in certificate.cer -inkey privateKey.key -out certificate.pfx -certfile CACert.cer
OpenSSL Convert PFX
Convert PFX to PEM
pkcs12 -in C:usersusernamedownloadsfolder certificate.pfx -out C:usersusernamedownloadsfoldercertificate.cer -nodes
A .PFX (Personal Information Exchange) file is used to store a certificate and its private and public keys. For example, if we need to transfer SSL certificate from one windows server to another, You can simply export it as .pfx file using IIS SSL export wizard or MMC console.
Sometimes we need to extract private keys and certificates from .pfx file, but we can’t directly do it. This article can be helpful for you to do the same. This article will also helpful for you to migrate an SSL certificate to AWS ELB because ELB required private keys and certificates separately.
In order to use below commands, you must have OpenSSL installed on your Windows or Linux system
Extract Private Key from PFX
The following command will extract the private key from the .pfx file. A new file private-key.pem will be created in current directory. This command required a password set on the pfx file.
Open the result file (private-key.pem) and copy text between and encluding —–BEGIN PRIVATE KEY—– and —–END CERTIFICATE—– text.
Openssl Generate Cert And Key From Pfx ExcelExtract Certificate from PFX
Then extract the certificate file. The following command will extract the certificate from the .pfx file. You can find the certificate in file named certificate.pem.
Open the result file (certificate.pem) and copy text between and encluding —–BEGIN CERTIFICATE—– and —–END CERTIFICATE—– text. This file may also include the other certificate chain. The first block will be your domain certificate and others will be the chain. You can copy all the certificates in one file and use it.
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