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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

Convert PFX to PEM as Individual Files

Extract the Private key (Will still be encrypted):

openssl pkcs12 -in [yourfile.pfx] -nocerts -out [keyfile-encrypted.key]

Extract the certificates:

Server Certificate:

openssl pkcs12 -in [yourfile.pfx] -clcerts -nokeys -out [certificate.crt]

Intermediate Certificate

openssl pkcs12 -in -cacerts -nokeys -chain -out

Decrypt Private Key file:

openssl rsa -in [keyfile-encrypted.key] -out [keyfile-decrypted.key]

Common Keytool Commands

Create JKS and CSR

keytool -genkey -alias server -keyalg RSA -keysize 2048 -keystore Certificate.jks -dname "CN=Common-Name, O=Organization, L=City, ST=State, C=US" && keytool -certreq -alias server -file Certificate.csr -keystore Certificate.jks && echo Your certificate signing request is in Certificate.csr. Your keystore file is Certificate.jks. Thanks for using the DigiCert keytool CSR helper.

Import P7B to JKS

keytool -import -alias server -file your_site_name.p7b -keystore your_site_name.jks

Check what's in the JKS

keytool -keystore: keytool -list -v -keystore keystore.jks