CN103067167A - Secret key storage method and telephone card authentication method of wireless fixed telephone - Google Patents

Secret key storage method and telephone card authentication method of wireless fixed telephone Download PDF

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Publication number
CN103067167A
CN103067167A CN2011103189007A CN201110318900A CN103067167A CN 103067167 A CN103067167 A CN 103067167A CN 2011103189007 A CN2011103189007 A CN 2011103189007A CN 201110318900 A CN201110318900 A CN 201110318900A CN 103067167 A CN103067167 A CN 103067167A
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China
Prior art keywords
key
telephone
cryptographic algorithm
cdma wll
authentication
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Pending
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CN2011103189007A
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Chinese (zh)
Inventor
李乐宁
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Shanghai Simcom Ltd
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Shanghai Simcom Ltd
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Publication date
Application filed by Shanghai Simcom Ltd filed Critical Shanghai Simcom Ltd
Priority to CN2011103189007A priority Critical patent/CN103067167A/en
Publication of CN103067167A publication Critical patent/CN103067167A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a secret key storage method of a wireless fixed telephone. The secret key storage method of the wireless fixed telephone includes the following steps: (1) selecting a first secret key which is used for telephone card authentication and a first encryption algorithm which is used for the telephone card authentication, wherein the telephone card authentication is authentication between a telephone of the wireless telephone and a subscriber identity module (SIM) card, (2) encrypting and writing a code of the first encryption algorithm and the first secret key in a flash by adopting a second encryption algorithm and a second secret key. The invention further discloses a telephone card authentication method of the wireless fixed telephone. Due to the fact that the secret key storage method and the telephone card authentication method of the wireless fixed telephone does not need to be provided with a write-only chip, the secret key storage method and the telephone card authentication method of the wireless fixed telephone solves the problem that the existing wireless fixed telephone needs to be provided with the write-only chip, wherein the write-only chip supports a 3 data encryption standard (DES) algorithm and all operations relative to the secret keys are finished in the chip. The secret key storage method and the telephone card authentication method of the wireless fixed telephone has the advantages of being capable of guaranteeing safety of the secret keys and simultaneously reducing cost of the wireless fixed telephone, and beneficial for development and application of the wireless telephone.

Description

The method for storing cipher key of fixed CDMA WLL and machine-card authentication method
Technical field
The present invention relates to a kind of method for storing cipher key and machine-card authentication method of fixed CDMA WLL, particularly relate to a kind of method for storing cipher key and machine-card authentication method that need not only to write the fixed CDMA WLL of chip.
Background technology
Fixed CDMA WLL is commonly called as " channel radio ", and its outward appearance is the ordinary telephone set outward appearance, is based on a kind of telecom terminal product of GSM/CDMA wireless network.Its core technology adopts the GSM/CDMA mobile communication system, and the number of opening also is phone number, and charge is collected by common local telephone network.Because " fixed CDMA WLL " need not rewiring, can be that operator saves very large expense; Main is, it can get up in " movement ", and this has just greatly enlarged the scope of application of " fixed line "; And along with the further of social informatization gos deep into, " fixed CDMA WLL " will have wide development space as a kind of extension and the expansion of former " telecommunications fixed line ".
Current, the mobile fixed CDMA WLL of having released, what this fixed CDMA WLL used is encrypted card, each start needs the authentication of machine card, the 3DES algorithm of authentication encryption algorithm Application standard (is that DES is to the cryptographic algorithm of AES transition, it uses 3 64 key that data are carried out three encryptions, this algorithm is a safer distortion of DES algorithm), this just is designed into the problem of key storage, generally for key safety, key need to store in the chip of only writing, and this chip is supported the 3DES algorithm, and all operations of being correlated with key are all finished in this chip.So just at the cost that has virtually increased fixed CDMA WLL, be unfavorable for that the expansion of fixed CDMA WLL is used.
Summary of the invention
The technical problem to be solved in the present invention is to be encrypted card for what overcome that fixed CDMA WLL of the prior art uses, and only write chip, defective that cost is higher for the safe storage of key must use, a kind of method for storing cipher key and machine-card authentication method that chip can guarantee the fixed CDMA WLL of secret key safety that need not only to write is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of method for storing cipher key of fixed CDMA WLL, its characteristics are that it may further comprise the steps:
S 1, select to be used for the first key of machine card authentication and the first cryptographic algorithm that is used for the authentication of machine card, wherein the authentication of machine card is the authentication between the phone of fixed CDMA WLL and the SIM card;
S 2, adopt in one second cryptographic algorithm and the code and this first secret key encryption programming to a FLASH of one second key with this first cryptographic algorithm.
Preferably, step S 2Further comprising the steps of:
S 21, adopt one second cryptographic algorithm and one second key with code and this first secret key encryption of this first cryptographic algorithm;
S 22, the first cryptographic algorithm after adopting a compilation tool to encrypt code compilation become an executable file and compile a threaded file, this threaded file is used to specify the operation address of this executable file;
S 23, according to threaded file with this executable file programming to this FLASH.
Preferably, the GPIO interface of the application processor by this fixed CDMA WLL is selected this second key.
Preferably, this first cryptographic algorithm is the 3DES algorithm.
The present invention also provides a kind of machine-card authentication method of fixed CDMA WLL, and its characteristics are, its as described above the method for storing cipher key of fixed CDMA WLL store after the first key and the first cryptographic algorithm, further comprising the steps of:
S 4, fixed CDMA WLL phone start, prepare to carry out the authentication of machine card;
S 5, by this second secret key decryption step S 2Middle programming enters the first key and the first cryptographic algorithm among this FLASH;
S 6, adopt this first key and this first cryptographic algorithm that the data that SIM card transfers to phone are encrypted;
S 7, with step S 6The SIM card of middle encryption transfers to the data of phone and sends into SIM card to carry out the authentication of machine card.
Preferably, step S 5In the state of GPIO interface of an application processor by judging this fixed CDMA WLL select this second key.
Wherein, this first key is provided by Network Provider, and this second key is provided by fixed CDMA WLL supplier.
Positive progressive effect of the present invention is: a kind of method for storing cipher key and machine-card authentication method that need not to dispose the fixed CDMA WLL of only writing chip is provided, solve existing fixed CDMA WLL and need to dispose a problem of writing chip, this is only write chip and supports the 3DES algorithm, and all operations of being correlated with key are all finished in this chip.When guaranteeing key safety, also reduced the fixed CDMA WLL cost like this, the expansion that is conducive to fixed CDMA WLL is used.
Description of drawings
Fig. 1 is the flow chart of method for storing cipher key of the fixed CDMA WLL of one embodiment of the invention.
Fig. 2 is the flow chart of machine-card authentication method of the fixed CDMA WLL of one embodiment of the invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
With reference to figure 1, introduce the method for storing cipher key of a fixed CDMA WLL of the present invention.
Step 101 selects to be used for the first key of machine card authentication and the first cryptographic algorithm that is used for the authentication of machine card, and wherein the authentication of machine card is the authentication between the phone of fixed CDMA WLL and the SIM card.Wherein, this first cryptographic algorithm is the 3DES algorithm.
Step 102 adopts one second cryptographic algorithm and one second key with code and this first secret key encryption of this first cryptographic algorithm.Wherein, the GPIO interface of the application processor by this fixed CDMA WLL is selected this second key, totally 4 groups of this second keys, the configuration of 2 GPIO when selecting that group to issue according to mobile fixed-line on the mainboard decides, GPIO is 00 and selects first group, GPIO is 01 and selects second group that GPIO is 10 and selects the 3rd group that GPIO is the 4th group of 11 selection.Phone start at mobile fixed-line is disposed the state that decides GPIO by software, and this second key storage is in flash.。In addition, the second cryptographic algorithm adopts each own high four and low four exchanges in the data, then presses the algorithm of byte negate.
Step 103, the code compilation of the first cryptographic algorithm after adopting a compilation tool to encrypt becomes an executable file and compiles a threaded file, and this threaded file is used to specify the operation address of this executable file.
Step 104, according to threaded file with this executable file programming to this FLASH.
With reference to figure 2, introduce the machine-card authentication method of a fixed CDMA WLL of the present invention.
Step 101 selects to be used for the first key of machine card authentication and the first cryptographic algorithm that is used for the authentication of machine card, and wherein the authentication of machine card is the authentication between the phone of fixed CDMA WLL and the SIM card.Wherein, this first cryptographic algorithm is the 3DES algorithm.
Step 102 adopts one second cryptographic algorithm and one second key with code and this first secret key encryption of this first cryptographic algorithm.Wherein, the GPIO interface of the application processor by this fixed CDMA WLL is selected this second key.
Step 103, the code compilation of the first cryptographic algorithm after adopting a compilation tool to encrypt becomes an executable file and compiles a threaded file, and this threaded file is used to specify the operation address of this executable file.
Step 104, according to threaded file with this executable file programming to this FLASH.
Step 105, the phone start of fixed CDMA WLL prepares to carry out the authentication of machine card.
Step 106 enters the first key and the first cryptographic algorithm among this FLASH by programming in this second secret key decryption step 104.Wherein the state of the GPIO interface of the application processor by judging this fixed CDMA WLL is selected this second key.
Step 107 adopts this first key and this first cryptographic algorithm that the data that SIM card transfers to phone are encrypted.
Step 108, the data that the SIM card of encrypting in the step 107 transferred to phone are sent into SIM card to carry out the authentication of machine card.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.

Claims (6)

1. the method for storing cipher key of a fixed CDMA WLL is characterized in that, it may further comprise the steps:
S 1, select to be used for the first key of machine card authentication and the first cryptographic algorithm that is used for the authentication of machine card, wherein the authentication of machine card is the authentication between the phone of fixed CDMA WLL and the SIM card;
S 2, adopt in one second cryptographic algorithm and the code and this first secret key encryption programming to a FLASH of one second key with this first cryptographic algorithm.
2. the method for storing cipher key of fixed CDMA WLL as claimed in claim 1 is characterized in that, step S 2Further comprising the steps of:
S 21, adopt one second cryptographic algorithm and one second key with code and this first secret key encryption of this first cryptographic algorithm;
S 22, the first cryptographic algorithm after adopting a compilation tool to encrypt code compilation become an executable file and compile a threaded file, this threaded file is used to specify the operation address of this executable file;
S 23, according to threaded file with this executable file programming to this FLASH.
3. the method for storing cipher key of fixed CDMA WLL as claimed in claim 1 or 2 is characterized in that, the GPIO interface of the application processor by this fixed CDMA WLL is selected this second key.
4. the method for storing cipher key of fixed CDMA WLL as claimed in claim 1 or 2 is characterized in that, this first cryptographic algorithm is the 3DES algorithm.
5. the machine-card authentication method of a fixed CDMA WLL is characterized in that, it is further comprising the steps of according to storing such as the method for storing cipher key of the described fixed CDMA WLL of any one among the claim 1-4 after the first key and the first cryptographic algorithm:
S 4, fixed CDMA WLL phone start, prepare to carry out the authentication of machine card;
S 5, by this second secret key decryption step S 2Middle programming enters the first key and the first cryptographic algorithm among this FLASH;
S 6, adopt this first key and this first cryptographic algorithm that the data that SIM card transfers to phone are encrypted;
S 7, with step S 6The SIM card of middle encryption transfers to the data of phone and sends into SIM card to carry out the authentication of machine card.
6. the machine-card authentication method of fixed CDMA WLL as claimed in claim 5 is characterized in that, step S 5In the state of GPIO interface of an application processor by judging this fixed CDMA WLL select this second key.
CN2011103189007A 2011-10-19 2011-10-19 Secret key storage method and telephone card authentication method of wireless fixed telephone Pending CN103067167A (en)

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Application Number Priority Date Filing Date Title
CN2011103189007A CN103067167A (en) 2011-10-19 2011-10-19 Secret key storage method and telephone card authentication method of wireless fixed telephone

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Application Number Priority Date Filing Date Title
CN2011103189007A CN103067167A (en) 2011-10-19 2011-10-19 Secret key storage method and telephone card authentication method of wireless fixed telephone

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507333A (en) * 2015-09-07 2017-03-15 中兴通讯股份有限公司 A kind of interlocking of phone and card method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895885A (en) * 2010-07-21 2010-11-24 中兴通讯股份有限公司 Method and system for protecting key file

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895885A (en) * 2010-07-21 2010-11-24 中兴通讯股份有限公司 Method and system for protecting key file

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507333A (en) * 2015-09-07 2017-03-15 中兴通讯股份有限公司 A kind of interlocking of phone and card method and device

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Application publication date: 20130424