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
