Content for TS 22.112 Word version: 8.0.0

1 Scope p. 5

The present document specifies a system to make Mobile Operator services, based on USAT functionality and USIM based security functionality, available to an internet environment. This is achieved by specifying the necessary components and protocols for a secure narrow band channel between the internet application and an USAT Interpreter on the USIM. The actual application could be developed using the application language of choice. Two types of applications interfaces are used as examples, i.e., mark-up language based on WML and Remote Procedure Call (RPC).

The interpreter and the secure narrow band channel form a core platform to enable services like:

Advanced security functionality, e.g., digital signatures in m-commerce applications
Value added services based on position and roaming
Controlled activation and management of other applications, e.g. multimedia and payment type of applications.

The secure narrow band channel is achieved by specifying the following:

specific application and content related functionalities of the interface between the application system and the USAT Gateway;
specific functionalities and protocols of the interface between the USAT Gateway and the USAT Interpreter associated with a USIM, achieved by defining a low level command set for interpretation by the USAT Interpreter;
defined level of functionality available to the application server for the implementation of USIM based services such as PKI, location services, push and broadcast services, event based services, etc..

The present document does not specify any elements of the protocol stack between the application server and the USAT Gateway, the mark-up language definition, and the transport protocols between the USAT Gateway and the USAT Interpreter.

2 References p. 5

The following documents contain provisions, which, through reference in this text, constitute provisions of the present document.

References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1]

TS 23.048: "Security Mechanisms for the SIM application toolkit; Stage 2".

[2]

TS 22.048: " Security Mechanisms for the SIM application toolkit; Stage 1".

[3]

TS 31.111: "USIM Application Toolkit (USAT); Physical and logical characteristics".

3 Definitions and abbreviations p. 6

3.1 Definitions p. 6

For the purposes of the present document, the following definitions apply:

application protocol:

Protocol to convey data between the application system and the USAT Gateway.

end-to-end security:

Secure content transfer between the Content System and the USAT Interpreter based on symmetric algorithms and/or asymmetric algorithms.

low level command set:

A transport bandwidth and USAT Interpreter implementation efficient coding of the content.

Plug-in:

Any other application or functionality resident on the USIM and accessible for the USAT Interpreter (regardless of the language used to implement the plug-in)

USIM:

A 3G application on an IC card.

USIM session:

link between the USIM and the external world starting with the ATR and ending with a subsequent reset or a deactivation of the USIM

3.2 Abbreviations p. 6

For the purposes of the present document, the following abbreviations apply:

FFS

For Further Study

GPRS

General Packet Radio Service

HTTP

Hypertext Transfer Protocol

Mandatory

Mobile Equipment

Optional

PKI

Public Key Infrastructure

SMS

Short Message Service

SSL

Secure Sockets Layer

tbd.

To Be Defined

UCS2

Universal two byte coded Character Set

User Equipment

URL

Uniform Resource Location

USAT

USIM Application Toolkit

USIM

Universal Subscriber Identity Module

WML

Wireless Mark-up Language