adb shell

cat /system/etc/security/cacerts/* | grep -E "After|Issuer"

系统证书

/system/etc/security/cacerts/

wifi 证书

/system/etc/security/cacerts_wfa

Issuer: C=US, O=WFA Hotspot 2.0, CN=Hotspot 2.0 Trust Root CA - 01

Google 证书

/system/etc/security/cacerts_google