I had trouble finding any notes on converting an Oracle auto login only wallet (cwallet.sso) into a PKCS12 format that can be used by other webservers such as Apache (e.g. ewallet.p12).
This may not be the most efficient method but it worked for me – first use orapki utility to convert to a Java Keystore e.g.
orapki wallet pkcs12_to_jks -wallet cwallet.sso -jksKeyStoreLoc ewallet.jks
Obviously choose a secure password when prompted.
Then use the Java keytool utility to convert the keystore into an ewallet.p12 e.g.
keytool -importkeystore -srckeystore ewallet.jks -srcstoretype JKS -deststoretype PKCS12 -destkeystore ewallet.p12
You’ll need the password you chose for your Java Keystore and to provide a new one for you PKCS12 wallet.