Messaging centre for forwarding e-mail
A method for forwarding an e-mail message from an e-mail server to a mobile terminal is provided. An e-mail address of the mobile terminal is associated with an identifier and encryption information, receiving the e-mail message associated with the e-mail address and sent by the e-mail server. The method includes encrypting the e-mail message using the encryption information associated with the e-mail address and transmitting the encrypted e-mail message to the mobile terminal.
1. A method for forwarding an e-mail message from an e-mail server to a mobile terminal, the method comprising:
at a messaging center acting as an intermediary between the e-mail server and the mobile terminal:
determining and storing a permanent identifier of the mobile terminal;
receiving the e-mail message from the e-mail server,
wherein the e-mail message includes an indication of the permanent identifier,
wherein the e-mail message is unencrypted;
determining and storing a temporary identifier associated with the permanent identifier;
encrypting the e-mail message using encryption information associated with the temporary identifier;
transmitting the encrypted e-mail message to the mobile terminal based on the temporary identifier;
receiving a reply message from the mobile terminal,
wherein the reply message is a reply to the encrypted e-mail message, and
wherein the reply message is encrypted;
retrieving the encryption information and the permanent identifier based on the temporary identifier,
wherein the permanent identifier is not included in the reply message;
decrypting the reply message using the encryption information;
inserting the permanent identifier in the reply message; and
transmitting the reply message to the e-mail server.
2. The method of claim 1 , wherein the permanent identifier is an e-mail address associated with the user and an account serviced by the e-mail server.
3. The method of claim 1 , wherein the temporary identifier is based on an identifier of the tunnel to the mobile terminal.
4. The method of claim 1 , wherein transmitting the encrypted e-mail message incudes transmitting the encrypted e-mail message, via an access network, to a mobile terminal for decryption, where the access network establishes a tunnel between the messaging center and the mobile terminal.
5. The method of claim 1 , wherein transmitting the encrypted e-mail message incudes signaling the e-mail server to send a conventional reply message.
6. The method of claim 1 , wherein the messaging center maintains an association for the mobile terminal.
7. The method of claim 6 , wherein the association joins:
an e-mail address assigned to the mobile terminal or its user;
the encryption information; and
the temporary identifier of the mobile terminal in the access network.
8. The method of claim 1 , wherein the permanent identifier is the mobile terminal's equipment identifier.
9. The method of claim 1 , wherein the encryption information is generated by the mobile terminal.
10. The method of claim 1 , wherein the temporary identifier includes one of a temporary logical link identifier (TLLI) or a temporary mobile subscriber identity (TMSI).
11. A messaging center acting as an intermediary between an e-mail server and a mobile terminal, the messaging center configured for:
determining and storing a permanent identifier of the mobile terminal;
receiving the e-mail message from the e-mail server,
wherein the e-mail message includes an indication of the permanent identifier,
wherein the e-mail message is unencrypted;
determining and storing a temporary identifier associated with the permanent identifier;
encrypting the e-mail message using encryption information associated with the temporary identifier;
transmitting the encrypted e-mail message to the mobile terminal based on the temporary identifier;
receiving a reply message from the mobile terminal,
wherein the reply message is a reply to the encrypted e-mail message, and
wherein the reply message is encrypted;
retrieving the encryption information and the permanent identifier based on the temporary identifier,
wherein the permanent identifier is not included in the reply message;
decrypting the reply message using the encryption information;
inserting the permanent identifier in the reply message; and
transmitting the reply message to the e-mail server.
12. The messaging center of claim 11 , wherein the permanent identifier is an e-mail address associated with the user and an account serviced by the e-mail server.
13. The messaging center of claim 11 , wherein the temporary identifier is based on an identifier of the tunnel to the mobile terminal.
14. The messaging center of claim 11 , wherein transmitting the encrypted e-mail message incudes transmitting the encrypted e-mail message, via an access network, to a mobile terminal for decryption, where the access network establishes a tunnel between the messaging center and the mobile terminal.
15. The messaging center of claim 11 , wherein transmitting the encrypted e-mail message incudes signaling the e-mail server to send a conventional reply message.
16. The messaging center of claim 11 , wherein the messaging center maintains an association for the mobile terminal.
17. The messaging center of claim 16 , wherein the association joins:
an e-mail address assigned to the mobile terminal or its user;
the encryption information; and
the temporary identifier of the mobile terminal in the access network.
18. The messaging center of claim 11 , wherein the permanent identifier is the mobile terminal's equipment identifier.
19. The messaging center of claim 11 , wherein the encryption information is generated by the mobile terminal.
20. The messaging center of claim 11 , wherein the temporary identifier includes one of a temporary logical link identifier (TLLI) or a temporary mobile subscriber identity (TMSI).