keytool -exportcert -alias ef2-02 -keystore ./EF2_android_keystore | openssl sha1 -binary | openssl base64
keytool -exportcert -alias (키네임) -keystore ./(키파일네임) | openssl sha1 -binary | openssl base64
keytool -exportcert -alias ef2-02 -keystore ./EF2_android_keystore | openssl sha1 -binary | openssl base64
keytool -exportcert -alias (키네임) -keystore ./(키파일네임) | openssl sha1 -binary | openssl base64