In order to convert a Java key store into a Privacy Enhanced Mail Certificate, you will need to use two tools : keytool.exe - to import the keystore from JKS to PKCS12 (supplied with Java) openssl.exe - to convert the PCKS12 to PEM (supplied with Ope
转自:http://cloudfields.net/blog/ios-push-notifications-encryption/ The serious pains of setting up a Remote Push Notification in an iOS app come not from coding the app itself. They mostly relate in making the intermediate environment to connect with