openssl pkcs12 -in client.p12 -out client.pem -nodes Extract CA cert from a .p12 :
openssl pkcs12 -in client.p12 -cacerts -nokeys -out ca.crt This guide should work for . Enterprise environments using EAP-TLS require both a user certificate ( .p12 ) and the root CA certificate installed separately. download wifi certificate for android
adb push ca.crt /sdcard/ adb shell cmd certificate install /sdcard/ca.crt Use DPC (Device Policy Controller) or managed configurations ā end users cannot install certs themselves. Troubleshooting | Problem | Likely fix | |---------|-------------| | Certificate not visible in WiāFi config | You installed as āCA certificateā ā use CA field; if āUser certificateā missing, reinstall as WiāFi certificate ( .p12 ) | | āCertificate not trustedā | Install the full chain (root + intermediate) as CA | | Canāt install .p12 | Convert to .pem + .key then use external tools like OpenSSL or install via āVPN & app user certā | | Android 14+ blocks old certs | Need SHA-256, RSA 2048+, validity < 825 days | Sample OpenSSL commands (for devs) Convert .p12 to .pem (cert + key): openssl pkcs12 -in client