CN102833417B - Communication terminal omitting user identification module - Google Patents
Communication terminal omitting user identification module Download PDFInfo
- Publication number
- CN102833417B CN102833417B CN201210315829.1A CN201210315829A CN102833417B CN 102833417 B CN102833417 B CN 102833417B CN 201210315829 A CN201210315829 A CN 201210315829A CN 102833417 B CN102833417 B CN 102833417B
- Authority
- CN
- China
- Prior art keywords
- algorithm
- key
- confidential data
- identification module
- subscriber identification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a communication terminal omitting a user identification module. The communication terminal does not comprise a card slot for installing the user identification module. An encryption and decryption module and a write once type memory are integrated on a baseband chip, and a user identification controller is not integrated on the baseband chip. The encryption and decryption module is also provided with a microprocessor and a nonvolatile memory and is used for calculation of an authentication and key authentication algorithm. The information in the omitted user identification module is saved at three places: the authentication and key authentication algorithm is saved in the nonvolatile memory of the encryption and decryption module; non confidential data is saved in a nonvolatile memory of the communication terminal; and confidential data is saved in the write once type memory, the confidential data is written in the manufacturing stage of the baseband chip, and then the direct physical connection between a baseband processor and the write once type memory is interrupted, so that the baseband processor must be connected with the write once type memory saving the confidential data through the encryption and decryption module. The manufacture cost of the communication terminal is saved.
Description
Technical field
The application relates to moving communicating field, particularly relates to a kind of communication terminal that omits subscriber identification module.
Background technology
In the communication terminal taking mobile phone as representative, in order to realize phone and SMS, on hardware, at least needing has:
---radio frequency chip, is used for communicating with base station sending and receiving signal; Comprise radio-frequency receiving-transmitting, frequency synthesis, power amplification etc.
---baseband chip, is used for processing signals and agreement; Be included in voice call, be baseband signal by audio-frequency signal coding in the time of transmitting, in the time receiving, is audio signal by baseband signal decoding; Also comprise Code And Decode to address information (cell-phone number, station address), Word message (note word, website word), pictorial information etc.
---power management chip is used for reducing the electric quantity consumption of communication terminal as far as possible.
---peripheral hardware, comprises screen, keyboard, casing etc.
---draw-in groove, for subscriber identification module is installed, and contact each with it is electrically connected.
Described subscriber identification module (subscriber identification module) is an IC(integrated circuit with microprocessor and memory) chip is the mark of communication terminal accessing mobile communication network.In the heterogeneous networks such as GSM, CDMA, WCDMA, it is dissimilar that subscriber identification module is also divided into SIM card, UIM card, usim card etc.
No matter be which kind of type, in subscriber identification module, be all solidified with following information:
---for the key of authentication.
For example, the Ki key in SIM card (Key identifier) is exactly for authentication with generate Kc key (Kc key uses for communication encryption) between SIM card and operator.Ki key and IMSI(International Mobile Subscriber Identification Number, international mobile subscriber identity) corresponding one by one, and be stored in the AUC(AUC of SIM card and operator simultaneously) in.
And for example, in UIM card, be A_key key for authentication.
For another example, for authentication in usim card is also Ki key, this Ki key is also for generating CK key, IK key and AK key (CK key is for communication encryption, and IK key is for integrity verification, and AK key is encrypted for sequence number SQN) between usim card and operator.
---ICCID(Integrate circuit card identity, IC-card identification code), for identifying IC-card.The length of ICCID is 10 bytes, comprises economic activity code name, country code, issue number, sequence number, filler code etc.In the fabrication stage of subscriber identification module, by producer, ICCID data are write.
---authentication and key authentication (Authentication and Key Agreement, AKA) algorithm.
For example, SIM card comprises for the A3 algorithm of authentication, for generating the A8 algorithm of Kc key.A3 algorithm and A8 algorithm write in production SIM card, are also stored in the AUC of operator simultaneously.
And for example, UIM card comprises the CAVE algorithm (Cellular Authentication and Voice Encryption, cellular authentication and voice encryption algorithm) for authentication and speech and signaling encryption.
Usim card comprises f1 algorithm (generating messages authentication code MAC), the f2 algorithm (generating Expected Response XRES) for authentication, for f3 algorithm (generating CK key), f4 algorithm (generating IK key), f5 algorithm (the generating AK key) algorithm of key authentication.If the compatible GSM access of usim card, also comprises the c3 algorithm (generating Kc key) for key conversion.F1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm, c3 algorithm write at production usim card, are also stored in the AUC of operator simultaneously.
Refer to Fig. 1, existing communication terminal comprises baseband chip, volatile memory SRAM, nonvolatile memory FLASH, draw-in groove etc.And antenna in communication terminal, radio frequency chip (may be integrated in baseband chip), power management chip (may be integrated in baseband chip), peripheral hardware etc. are little with the application's relation, thereby not shown.In baseband chip, be all integrated with user's identification controller (in Fig. 1 taking SIM card interface as example), it is connected and signal transmission with the draw-in groove (in Fig. 1 taking sim card slot as example) that is placed on baseband chip.Described draw-in groove is used for holding subscriber identification module (Fig. 1 is taking SIM card as example) and is connected with signal transmission with its each contact.Other subscriber identification modules are similar with it, are all on baseband chip, to have corresponding user's identification controller, have respective card slot outside baseband chip, between user's identification controller and draw-in groove, are normally connected and signal transmission with printed circuit.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of communication terminal that omits subscriber identification module, similarly executive communication function, and there is identical fail safe with the existing communication terminal that possesses subscriber identification module.
For solving the problems of the technologies described above, the communication terminal that the application omits subscriber identification module comprises baseband chip and nonvolatile memory, does not comprise the draw-in groove for subscriber identification module is installed;
On baseband chip, be integrated with baseband processor, encryption and decryption module and write-once type memory, not integrated user's identification controller;
Described encryption and decryption module also has microprocessor and nonvolatile memory, for carrying out the calculating of authentication and key authentication algorithm;
Information in the subscriber identification module being omitted is divided into three places and deposits:
---authentication and key authentication algorithm are wherein deposited in the nonvolatile memory in encryption and decryption module;
---non-confidential data is wherein deposited in the nonvolatile memory in communication terminal;
---confidential data is wherein deposited in write-once type memory, and these confidential datas write in the fabrication stage of baseband chip, direct physical between baseband processor and write-once type memory is connected and is interrupted subsequently, to make baseband processor to connect the write-once type memory that store confidential data via encryption and decryption module.
The communication terminal that the application omits subscriber identification module has been simplified subscriber identification module, draw-in groove and user's identification controller of physics card medium, change by the encryption and decryption engine in baseband chip etc. and be achieved, not only save the interior space of machine of manufacturing cost and communication terminal, simplify the design of printed circuit board (PCB), and there is function and the security performance identical with the communication terminal of the subscriber identification module of existing employing physics card medium.
Brief description of the drawings
Fig. 1 is the hardware configuration schematic diagram of an embodiment of the existing communication terminal with subscriber identification module;
Fig. 2 is the hardware configuration schematic diagram of an embodiment of the application's communication terminal of omitting subscriber identification module.
Embodiment
Refer to Fig. 2, the communication terminal that the application omits subscriber identification module comprises baseband chip, volatile memory SRAM, nonvolatile memory FLASH.And antenna in communication terminal, radio frequency chip (may be integrated in baseband chip), power management chip (may be integrated in baseband chip), peripheral hardware etc. are little with the application's relation, thereby not shown.Compared with existing communication terminal, the application's communication terminal is owing to having omitted subscriber identification module, therefore not for the draw-in groove of subscriber identification module is installed.
On baseband chip, be integrated with baseband processor, encryption and decryption module (taking SIM encryption and decryption engine as example) and write-once type memory (taking efuse device as example).Existing communication terminal also has the user's identification controller for connecting draw-in groove in baseband chip, and the application's communication terminal, owing to having omitted draw-in groove, does not therefore just have integrated user's identification controller in baseband chip yet.
Encryption and decryption module in the application is a hardware module, self also has microprocessor, random access memory ram (volatibility), read only memory ROM (non-volatile), for carrying out the evaluation work about authentication and key authentication.And the algorithm of authentication and key authentication only calculates in this encryption and decryption module.This encryption and decryption module is equivalent to microprocessor and the memory etc. of the subscriber identification module being omitted on hardware.
Between baseband processor and encryption and decryption module, be connected by internal bus, being connected by printed circuit board (PCB) between user's identification controller of functional equivalent in existing communication terminal and subscriber identification module.
Encryption and decryption module is connected with the nonvolatile memory FLASH of communication terminal by data-interface, for the phase of depositing non-confidential data wherein.
Information in the subscriber identification module being omitted is divided three classes: authentication and key authentication algorithm, confidential data and non-confidential data.
The subscriber identification module being omitted is if SIM card, authentication wherein and key authentication algorithm are A3 algorithm and A8 algorithm, confidential data is wherein Ki key and ICCID, except A3 algorithm, A8 algorithm, Ki key, ICCID are non-confidential data with the data of storing in external SIM card or usim card.
The subscriber identification module being omitted is if UIM card, authentication wherein and key authentication algorithm are CAVE algorithm, confidential data is wherein A_Key key and ICCID, except CAVE algorithm, A_Key key, ICCID are non-confidential data with the data of storing in external UIM card.
The subscriber identification module being omitted is if usim card, and authentication wherein and key authentication algorithm are that algorithm is f1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm.If compatible GSM network, AKA algorithm also has c3 algorithm so.Confidential data is wherein Ki key and ICCID.The data of storing in external usim card except f1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm, c3 algorithm (only the compatible GSM network of needs in the situation that), Ki key, ICCID are non-confidential data.
The application deposits above-mentioned three category informations respectively:
---authentication and key authentication algorithm are wherein deposited in the read-only memory in encryption and decryption module;
---non-confidential data is wherein deposited in the nonvolatile memory FLASH in communication terminal;
---confidential data is wherein deposited in write-once type memory, and these confidential datas write in the fabrication stage of baseband chip, direct physical between baseband processor and write-once type memory is connected and is interrupted subsequently, to make baseband processor to connect the write-once type memory that store confidential data via encryption and decryption module.
For example, write-once type memory has a controlled position (bit), first confidential data is written in write-once type memory in baseband chip production process, then by this controlled position fusing, makes baseband processor cannot directly read or revise the confidential data in disposable memory.
After baseband chip manufacture completes, baseband processor can not directly be accessed described confidential data, baseband processor is handled is all the confidential data after encryption and decryption module encrypt, and the work such as access to confidential data, encryption, deciphering, authentication realize by encryption and decryption module.
Write-once type memory in Fig. 2 is efuse device, and this is a kind of miniature fuse-wires structure of realizing according to electron transfer (electromigration, the EM) characteristic of metal.Described write-once type memory also can adopt OTP(One Time Programable, One Time Programmable) device etc.
Preferably, described write-once type memory has multiple, while needing to change the confidential data of the subscriber identification module being omitted, the write-once type memory that originally stored confidential data is cancelled, adopt the new amended confidential data of write-once type memory stores, interrupt subsequently baseband processor and be connected with the direct physical storing between the write-once type memory of amended confidential data, to make baseband processor to connect the write-once type memory that store amended confidential data via encryption and decryption module.
Further, described baseband chip can also integrated digital baseband module, the functional module such as Analog Baseband module, radio-frequency module, power management module, audio-frequency module, bluetooth, broadcast receiver.
The communication terminal of the application's omission subscriber identification module replaces the hardware computational resource of original subscriber identification module with encryption and decryption engine integrated in baseband chip, the data of original subscriber identification module are divided three classes and are stored respectively, thereby can dispense the subscriber identification module of existing physics card medium, and integrated corresponding hardware computational resource and data in baseband chip completely.Like this, in communication terminal, can dispense subscriber identification module, for fixing and the draw-in groove of subscriber identification module is installed, thereby can dwindle the volume of communication terminal and reduce manufacturing cost.Adopt the communication terminal of this baseband chip can also omit the circuit between interface and the draw-in groove of subscriber identification module, thereby can simplify the design of printed circuit board (PCB).And the application also can reach function and the fail safe identical with the subscriber identification module of independent setting completely.
These are only the application's preferred embodiment, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.All within the application's spirit and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in the application's protection range.
Claims (6)
1. a communication terminal that omits subscriber identification module, is characterized in that, comprises baseband chip and nonvolatile memory, does not comprise the draw-in groove for subscriber identification module is installed;
On baseband chip, be integrated with baseband processor, encryption and decryption module and write-once type memory, not integrated user's identification controller;
Described encryption and decryption module also has microprocessor and nonvolatile memory, for carrying out the calculating of authentication and key authentication algorithm;
Information in the subscriber identification module being omitted is divided into three places and deposits:
---authentication and key authentication algorithm are wherein deposited in the nonvolatile memory in encryption and decryption module;
---non-confidential data is wherein deposited in the nonvolatile memory in communication terminal;
---confidential data is wherein deposited in write-once type memory, and these confidential datas write in the fabrication stage of baseband chip, direct physical between baseband processor and write-once type memory is connected and is interrupted subsequently, to make baseband processor to connect the write-once type memory that store confidential data via encryption and decryption module.
2. the communication terminal of omission subscriber identification module according to claim 1, it is characterized in that, when the subscriber identification module being omitted is SIM card, authentication wherein and key authentication algorithm are A3 algorithm and A8 algorithm, confidential data is wherein Ki key and ICCID, except A3 algorithm, A8 algorithm, Ki key, ICCID are non-confidential data with the data of storing in external SIM card or usim card;
When the subscriber identification module being omitted is UIM card, authentication wherein and key authentication algorithm are CAVE algorithm, confidential data is wherein A_Key key and ICCID, except CAVE algorithm, A_Key key, ICCID are non-confidential data with the data of storing in external UIM card;
When the subscriber identification module being omitted is usim card, authentication wherein and key authentication algorithm are f1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm, confidential data is wherein Ki key and ICCID, except f1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm, Ki key, ICCID are non-confidential data with the data of storing in external usim card.
3. the communication terminal of omission subscriber identification module according to claim 2, is characterized in that, in the time that the subscriber identification module being omitted is usim card and the compatible GSM network of needs, authentication wherein and key authentication algorithm also have c3 algorithm; Except f1 algorithm, f2 algorithm, f3 algorithm, f4 algorithm, f5 algorithm, c3 algorithm, Ki key, ICCID are non-confidential data with the data of storing in external usim card.
4. the communication terminal of omission subscriber identification module according to claim 1, is characterized in that, described write-once type memory comprises efuse device, OTP parts.
5. the communication terminal of omission subscriber identification module according to claim 1, it is characterized in that, described write-once type memory has multiple, in the time that needs change the confidential data of the subscriber identification module being omitted, the write-once type memory that originally stored confidential data is cancelled, adopt the new amended confidential data of write-once type memory stores, interrupting subsequently baseband processor is connected with the direct physical storing between the write-once type memory of amended confidential data, to make baseband processor to connect the write-once type memory that stores amended confidential data via encryption and decryption module.
6. the communication terminal of omission subscriber identification module according to claim 1, it is characterized in that, described baseband chip is also integrated with one or more in digital baseband block, Analog Baseband module, radio-frequency module, power management module, audio-frequency module, bluetooth module, radio receiver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210315829.1A CN102833417B (en) | 2012-08-30 | 2012-08-30 | Communication terminal omitting user identification module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210315829.1A CN102833417B (en) | 2012-08-30 | 2012-08-30 | Communication terminal omitting user identification module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102833417A CN102833417A (en) | 2012-12-19 |
| CN102833417B true CN102833417B (en) | 2014-07-09 |
Family
ID=47336381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210315829.1A Active CN102833417B (en) | 2012-08-30 | 2012-08-30 | Communication terminal omitting user identification module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102833417B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144418B (en) * | 2013-05-10 | 2019-04-23 | 中国移动通信集团公司 | Baseband chip, mobile terminal and the method for realizing authentication for mobile terminal |
| CN105897410A (en) * | 2014-12-08 | 2016-08-24 | 深圳市创成微电子有限公司 | Audio frequency chip spi communication encryption method |
| CN107995673A (en) * | 2016-10-27 | 2018-05-04 | 中兴通讯股份有限公司 | A kind of voice data processing apparatus, method and terminal |
| CN106850210A (en) * | 2017-02-28 | 2017-06-13 | 努比亚技术有限公司 | Mobile terminal sound call handling method and mobile terminal |
| CN110167017A (en) * | 2019-06-28 | 2019-08-23 | 成都天软信息技术有限公司 | A kind of secure communication mould group and electronic equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007336058A (en) * | 2006-06-13 | 2007-12-27 | Toshiba Corp | Information access management method and apparatus, and write-once media |
| CN201178476Y (en) * | 2007-12-21 | 2009-01-07 | 康佳集团股份有限公司 | Mobile phone without need of inserting customer recognition card |
| CN101222711B (en) * | 2008-02-02 | 2010-11-10 | 代邦（江西）制卡有限公司 | Mobile communication network system supporting virtual SIM card and authentication method thereof |
| CN102111759A (en) * | 2009-12-28 | 2011-06-29 | 中国移动通信集团公司 | Authentication method, system and device |
| CN102264061B (en) * | 2011-04-11 | 2015-07-22 | 宇龙计算机通信科技(深圳)有限公司 | Card-free mobile terminal authentication and communication method, server and card-free mobile terminal |
-
2012
- 2012-08-30 CN CN201210315829.1A patent/CN102833417B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102833417A (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11153746B2 (en) | Method and terminal for keeping subscriber identity module card in standby state | |
| CN102833417B (en) | Communication terminal omitting user identification module | |
| US8453927B2 (en) | Communication method between a handset device and IC cards | |
| EP2649831A1 (en) | Method for transferring subscription information between terminals | |
| CN108430092A (en) | Obtain, provide method, equipment and the medium of wireless access point access information | |
| CN104412633A (en) | Methods and devices for remote smart card personalization | |
| WO2014019978A1 (en) | Method for accessing a service, corresponding first device, second device and system | |
| US11848929B2 (en) | IMEI storage | |
| JP5706404B2 (en) | General-purpose subscriber identification module authentication method and system | |
| CN101080051B (en) | Method for service station indication of terminal | |
| US9198028B2 (en) | Communication system, mobile communication apparatus and switching method of subscriber identification information | |
| CN101841783A (en) | Short message safety communication method, system and device based on STK (SIM Tool Kit) business | |
| CN103702449B (en) | The communication means and equipment of a kind of client identification module card | |
| CN115065965B (en) | Information display method, information storage device, user identification card and user identification equipment | |
| US12028934B2 (en) | Method and terminal for keeping subscriber identity module card in standby state | |
| US20150312750A1 (en) | Method of performing cell broadcast message management | |
| CN107301043B (en) | Self-starting realization method of micro base station and exchange board network chip | |
| EP3694242B1 (en) | Method and user equipement with an integrated subscriber identity module (isim) for sharing a isim file system with a modem | |
| US11019672B2 (en) | Method, chip and system for detecting a failure in a PDP context or an EPS PDN connection | |
| KR101603476B1 (en) | Method for Dual Certification by using Dual Channel | |
| Faraz | Analysis of international numbers of a cell phone | |
| CN114980087A (en) | Data encryption method and device | |
| KR20090020835A (en) | Method and mobile terminal for usim card authorization | |
| CN102752773A (en) | Wireless wide area network card and network accessing method of same | |
| CN110996313A (en) | Information transmission method, system and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |