###. JRE证书 cacerts 位于 C:\Program Files\Java\jre1.8.0_211\lib\security `keytool -list -rfc -keystore cacerts` 查看证书需要密码，默认密码是changeit。 ### Applet签名 1. `keytool -genkey -keystore myapplet.store -alias myapplet` 2. `keytool -export -keystore myapplet.store -alias myapplet -file myapplet.cer` 3. `jarsigner -keystore myapplet.store myapplet.jar myapplet` 5. `keytool -import -alias myapplet -file myapplet.cer -keystore cacerts` ### Java权限