OpenSSL commands to convert PEM fileĬonvert PEM to DER openssl x509 -outform der -in certificate.pem -out rĬonvert PEM to P7B openssl crl2pkcs7 -nocrl -certfile certificate.cer -out certificate.p7b -certfile CACert.cerĬonvert PEM to PFX openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt OpenSSL commands to convert DER fileĬonvert DER to PEM openssl x509 -inform der -in certificate.cer -out certificate.pem OpenSSL commands to convert P7B fileĬonvert P7B to PEM openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cerĬonvert 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 commands to convert PFX fileĬonvert PFX to PEM openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer openssl pkcs12 -in certificate.pfx -out certificate. The following series of OpenSSL commands allows you to convert SSL certificate in various formats on your own machine. With the help of OpenSSL commands, you can easily do that. Therefore, one needs to convert it into supported format. Converting PEM encoded Certificate and private key to PKCS 12 / PFX openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt Converting PKCS 7 (P7B) and private key to PKCS 12 / PFX openssl pkcs7 -printcerts -in certificate.p7b -out certificate. You will need to open the file in a text editor and copy each certificate and private key (including the BEGIN/END statments) to its own individual text file and save them as certificate.cer, CACert.cer, and privateKey.key respectively.Sometimes, a certificate authority (CA) provides certificate in an unsupported format. When converting a PFX file to PEM format, OpenSSL will put all the certificates and the private key into a single file. PFX files are typically used on Windows machines to import and export certificates and private keys. PFX files usually have extensions such as. The PKCS#12 or PFX format is a binary format for storing the server certificate, any intermediate certificates, and the private key in one encryptable file. Several platforms support P7B files including Microsoft Windows and Java Tomcat. A P7B file only contains certificates and chain certificates, not the private key. P7B certificates contain "-BEGIN PKCS7-" and "-END PKCS7-" statements. The PKCS#7 or P7B format is usually stored in Base64 ASCII format and has a file extention of. If you need to convert a private key to DER, please use the OpenSSL commands on this page PKCS#7/P7B Format The SSL Converter can only convert certificates to DER format. DER is typically used with Java platforms. All types of certificates and private keys can be encoded in DER format. cer file is to open it in a text editor and look for the BEGIN/END statements. cer so the only way to tell the difference between a DER. der but it often has a file extension of. The DER format is simply a binary form of a certificate instead of the ASCII PEM format. Several PEM certificates, and even the private key, can be included in one file, one below the other, but most platforms, such as Apache, expect the certificates and private key to be in separate files. Server certificates, intermediate certificates, and private keys can all be put into the PEM format.Īpache and other similar servers use PEM format certificates. They are Base64 encoded ASCII files and contain "-BEGIN CERTIFICATE-" and "-END CERTIFICATE-" statements. PEM certificates usually have extentions such as. The PEM format is the most common format that Certificate Authorities issue certificates in. SSL Certificate format details PEM Format
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