CN1782312A - Method for setting anti-theft device predefined state of apparatus, encrypting device and recognizing device - Google Patents
Method for setting anti-theft device predefined state of apparatus, encrypting device and recognizing device Download PDFInfo
- Publication number
- CN1782312A CN1782312A CN 200510128929 CN200510128929A CN1782312A CN 1782312 A CN1782312 A CN 1782312A CN 200510128929 CN200510128929 CN 200510128929 CN 200510128929 A CN200510128929 A CN 200510128929A CN 1782312 A CN1782312 A CN 1782312A
- Authority
- CN
- China
- Prior art keywords
- theft device
- sign
- key
- predetermined state
- theft
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008901 benefit Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention provides a method used to set a predetermined state of an anti-theft device of equipment, an encoding device used to set the predetermined state of the anti-theft device of the equipment and a recognizing device used to set the predetermined state of the anti-theft device of the equipment, which can realize the engendering and the recognition of the security of the predetermined state, wherein, a first mark (1) of the anti-theft device uses a first key (10), especially a private key to carry out the encryption, thereby producing an encrypted mark (20) which indicates the predetermined state of the anti-theft device. A third mark (20) of the anti-theft device uses a second key (15), especially a public key to carry out the encryption to produce a second mark (5). The second mark (5) is compared with the first mark (1), and the predetermined state of the anti-theft device is recognized in the condition that the first mark (1) and the second mark (2) are identical.
Description
Technical field
The present invention relates to method, be provided for the encryption device of the predetermined state of anti-theft device of an equipment and the recognition device that identification is used for the predetermined state of anti-theft device of an equipment according to the predetermined state of anti-theft device that is provided for an equipment of the preamble of independent claims.
Background technology
Following mode is known, that is, and and by for example: write the predetermined state that a so-called original state of simple tagged word is set to anti-theft device among the EEPROM to the nonvolatile memory of the controller of an anti-theft device.But this method is not false proof.
Summary of the invention
Method with predetermined state of anti-theft device that is provided for an equipment of independent claims 1 and 9 features of the present invention has following advantage with the encryption device that is provided for the predetermined state of anti-theft device of an equipment with respect to aforesaid way: first sign, first key of anti-theft device, particularly one private key encrypted, thereby produced an encryption identification, the predetermined state of this encryption identification sign anti-theft device.Because encryption can realize the predetermined state of anti-theft device more false proofly, especially carry out with undocumented private key in this way when encrypting.
The recognition device of the predetermined state of anti-theft device that is used to discern an equipment with independent claims 10 features of the present invention has following advantage: be provided with a decoding unit, this decoding unit second key, particularly a disclosed key comes the 3rd sign of anti-theft device is decoded to produce second sign; And be provided with a comparing unit and come first of second sign and anti-theft device identified and compare; And being provided with a detecting unit, this detecting unit identifies the predetermined state that identifies anti-theft device under the consistent situation in first sign with second.Also can with the predetermined state of the 3rd mark and label anti-theft device the time, detect anti-theft device simply and whether be in predetermined state in this way.When using a public-key cryptography decoding, this identification simple possible to the predetermined state of anti-theft device is because this disclosed key can obtain very simply especially.
By in the cited measure of dependent claims, can carry out favourable improvement and improvement to method given in the independent claims.
Particularly advantageously be, the 3rd sign second key of anti-theft device, particularly one disclosed key decode with produce second the sign, and first sign of second sign with anti-theft device compared, identify the predetermined state that identifies anti-theft device under the corresponding to situation in first sign and second.Make in this way, identify under the situation consistent the 3rd with encryption identification, can detect predetermined state especially simply by the particularly false proof anti-theft device that encryption produced that carries out with first key, particularly, when a disclosed key was used as second key, the key of the disclosure and a private key obtained by comparison particularly easily.
Another advantage results from second key and first key and selects differently, and wherein encryption of carrying out with first key and the decoding carried out with second key are asymmetric.Make in this way,,,, can not set out by first sign and obtain the predetermined state of encryption identification and anti-theft device with general expense because by means of second key at the predetermined state of not knowing to produce under the first key situation anti-theft device.Thus in this case, when second key is a disclosed key, and first sign is also no problem when equally also being open.Encryption identification and thus the predetermined state of anti-theft device also only when knowing first key, can produce.
In addition advantageously the specific identity of equipment is chosen as first sign.In this way with regard to guaranteed to encrypt be device-specific and can not be by other equipment and anti-theft device copy thereof.So just avoided encryption identification to be repeated repeatedly to use.
In addition advantageously encryption identification is stored in the control device of anti-theft device.In this way, the control device of anti-theft device can separately be produced with this equipment, thereby, in the process of this equipment of production, first key that is used for first mark encryption with anti-theft device and is encryption identification needs not to be known, can guarantee that thus first key only discloses among the less comparatively speaking crowd when the manufacture control device.The setting that is not allowed to of the predetermined state of anti-theft device also can greatly be limited by this mode.
Another advantage results from ought be only under the situation of the predetermined state that identifies anti-theft device, and the miscellaneous part of the control device of anti-theft device ability and anti-theft device is complementary.So just can avoid abuse, particularly prevent from the objectionable of anti-theft device avoided anti-theft device.
Another advantage results from first sign and is confirmed to be inconsistently with second sign, thus under the situation that the predetermined state of anti-theft device can not be discerned, the use (Zugang) of anti-theft device is closed.By this way, one be not hoped to the control of anti-theft device or avoid and will be avoided safely.
This function can be realized particularly simply by the use of closing the control device of anti-theft device.
Description of drawings
Accompanying drawing has shown one embodiment of the present of invention, and in following explanation it has been done detailed explanation, and it has shown:
An example flow diagram of Fig. 1 the method for the invention,
The functional interpretation figure of the operating principle of Fig. 2 code device of the present invention,
The functional interpretation figure of the operating principle of Fig. 3 recognition device of the present invention.
The specific embodiment
Fig. 1 has shown the mixed form of a flow chart and functional diagram, and the process of method of the predetermined state of the anti-theft device that is provided for an equipment of the present invention has been described to its example.Wherein, this equipment can for example be an automobile, but in general this equipment can be equipment arbitrarily, for example also can be a notebook computer or a mobile phone.Suppose that hereinafter this equipment is that automobile is as example.The definition of anti-theft device originates from automotive field, and the meaning here is the not use to arbitrary equipment of mandate that prevents of a broad sense.Like this, this equipment will be nugatory for a user who does not have to authorize, thereby to the theft of this equipment null(NUL) particularly concerning the user who not have mandate, also just can avoid the generation of stealing.
Be meant the original state of anti-theft device in this example for predetermined state.Other free positions that also can refer in the ordinary course of things, anti-theft device.The original state of anti-theft device is meant, this anti-theft device is at controller 25, is also referred to as the state of control device after just having completed below.Control device 25 will be transported to car manufactures 75 in this original state from the manufacturer 70 of control device 25 according to Fig. 1, and be complementary with the miscellaneous part of this anti-theft device in the further manufacturing process of automobile or adaptive.This is adaptive only to be only under original state and to be allowed to.
If can be re-set as original state to anti-theft device in the future technically, thereby the control device 25 of anti-theft device and the possibility of the miscellaneous part continuation coupling of anti-theft device are just provided.Can there be control that anti-theft device do not authorized or the risk of avoiding thus.
This situation can be avoided by the content of the method for the invention.In this embodiment, the original state of the anti-theft device used of automobile is with method setting of the present invention.Semiconductor supplier 65 has made a memory assembly 60, and this memory assembly for example is designed to a nonvolatile memory.This nonvolatile memory can be an EEPROM or a flash memory.In the example of Fig. 1, semiconductor supplier 65 is supplied to control device 25 manufacturers to EEPROM60.Control device 25 has comprised one first sign 1 at a corresponding storage area of control device 25.The special use that this first sign 1 for example can be equipment or controller indicates, and wherein it for example can be a sequence number of control device 25.This sign need not be maintained secrecy.The sequence number 1 of the control device 25 that is read by a coding unit 40 is encrypted by first key 10, thereby has produced an encryption identification 20, and this encryption identification is stored in that semiconductor supplier 65 provides and in controller 25 on the integrated EEPROM60.Encryption identification 20 is ciphering sequence number in this example.Sequence number is encrypted among the EEPROM60 that is write memory 25 in the back by coding unit 40.First key 10 can for example be a private key, and the manufacturer 70 of its controlled device 25 preserves.Advantageously, the ingredient of control device 25 can not be handled and be to the sequence number 1 of control device 25.Control device 25 together with 20 anti-theft devices of ciphering sequence number in EEPROM60 is under the described original state.In this state, control device 25 is handed to car manufactures 75 by the manufacturer 70 of control device 25.
In car manufactures 75 theres, the ciphering sequence number of reading from EEPROM60 20 is decoded by decoding unit 45 usefulness second key 15, thereby has produced one second sign 5.Wherein, this second key can be the PKI that freely uses.Advantageously, when the selection difference of second key 15 with first keys 10, wherein, with the encryption of first key and asymmetric with the decoding of second key.So just guaranteed, on the basis of known sequences of control device No. 25 1 and known disclosed key 15, can not release ciphering sequence number 20, just can not cause the original state of control device 25 with general expenses.Second sign 5 is that sequence number 1 compares by the comparing unit 50 and first sign here.Comparative result is sent to detecting unit 55.If detecting unit 55 determines that the comparative result of comparing unit 50 is sure, just sequence number 1 is consistent with second sign 5, thereby detecting unit 55 just detects, and control device 25 is in its original state and is caught control device 25 suitable with the miscellaneous part of anti-theft device in the automobile assembling process.Other parts are, for example an independent anti-theft device controller, for example an ignition switch controller, the perhaps parts of the control oil spout in the controller 25.Under other all situations, be that ciphering sequence number 20 is can not be by decoding unit 45 decoded or sequence number 1 is inconsistent with second sign 5, detecting unit 55 just detects, control device 25 is not in original state, but is in an error condition, in this case, detecting unit 55 is just closed anti-theft device, the application apparatus 25 of closing control particularly, this be for fear of do not authorize for the anti-theft device or the control of control device 25, or avoid avoiding to anti-theft device.
Thus, have only when the detected unit of the original state of anti-theft device or control device 25 55 is detected, just can be by car manufactures the miscellaneous part of the control device 25 of anti-theft device and anti-theft device coupling and adaptive.
The functional diagram that has shown code device 30 in Fig. 2, the manufacturer of this device controlled device 25 is used for being provided with the original state of anti-theft device or control device 25.Wherein, code device has comprised coding unit 40, and in order to generate ciphering sequence number 20, it here is that sequence number 1 usefulness first key 10 is encrypted in the manner described first sign.Wherein, code device 30 can also comprise a memory that is used for first key 10 except coding unit 40, as shown in Fig. 2.Perhaps also can for example be connected to the memory of first key 10 on the coding unit 40, thereby the memory of first key 10 is located in outside the code device 30 by an interface.
First sign here is the memory of sequence number 1 and be positioned in as shown in Figure 1 in the control device 25 for the EEPROM60 of storage encryption sequence number 20.
Figure 3 shows that the functional diagram of recognition device 35 of the present invention, this device for example is used for discerning the original state of anti-theft device or control device 25 by car manufactures.Wherein, recognition device 35 comprises decoding unit 45, this decoding unit second key 15 auxiliary down to the EEPROM60 of control device 25 in institute transmit the ciphering sequence number 20 that comes, general is that content among the EEPROM60 is decoded in fact.Wherein, second key 15 can be stored in certain storage area of recognition device 35 for example, perhaps externally is transferred on recognition device 35 or the decoding unit 45 by an interface.In addition, recognition device 35 also comprises comparing unit 50, and this comparing unit is that the sequence number 1 of control device 25 compares to second sign, 5 and first sign 1 that the back of decoding generates here.Sequence number 1 also with described method for example by interface from the external transmission to the recognition device 35 or comparing unit 50 on.Wherein, sequence number 1 and ciphering sequence number 20 are stored in controller 25 as described.Comparative result is transported in the detecting unit 55 of recognition device 35 by comparing unit 50, whether this detecting unit detects second sign, 5 and first sign, 1 (being sequence number) here with described method corresponding, and just whether anti-theft device or control device 25 are in original state.If detecting unit 55 confirms that control device 25 or anti-theft device are in original state,, it makes that the miscellaneous part of anti-theft device is adaptive with control device 25 so just starting first activation unit 80.Wherein, the first activation unit 80 can be an ingredient of recognition device 35 or be positioned at as shown in Figure 3 outside the recognition device 35.When detecting unit 55 is confirmed, second sign 5 does not match with first sign, 1 (being the sequence number of control device 25 here), it just starts second and activates unit 85 and close to the use of anti-theft device or to the use of control device 25, prevent the not control to control device 25 or anti-theft device of mandate, perhaps prevent it is avoiding anti-theft device.Second activates unit 85 also can be an ingredient of recognition device 35 or be positioned at as shown in Figure 3 outside the recognition device 35.
Only under the original state of control device 25 or anti-theft device, store the sequence number that controller 25 is encrypted as described among the EEPROM60.So in general, the prerequisite for the decode procedure by decoding unit 45 should be that interior sign that perhaps wherein contains or the encryption identification of EEPROM60 are decoded as one the 3rd sign 20 usefulness second key 15.This 3rd sign 20 only is only ciphering sequence number under the original state of anti-theft device or control device 25, and is the sign different with the sequence number of this encryption in other cases.
Content among the EEPROM60 needn't be encrypted in the ordinary course of things.Particularly when it and when not meeting ciphering sequence number 1, thereby the content among the EEPROM60 also just resembles usually and is called as the 3rd sign 20, the three signs described and only just is consistent with the sequence number of encrypting 1 under control device 25 or anti-theft device are the particular case of original state.Thus in order to generate second sign 5, the 3rd sign 20 is just by 15 decodings of decoding unit 45 usefulness second key, and last definite in the manner described the 3rd sign 20 sequence numbers 1 whether correspondence is encrypted, just second sign 5 corresponding sequence number 1 whether determines just whether control device 25 or anti-theft device are in original state.
Thus, have only first of encryption to identify 1 (being ciphering sequence number) indicates the control device 25 of anti-theft device or anti-theft device as the content of EEPROM60 original state here.
Just as previously described, the present invention not only is confined to use the original state of anti-theft device or control device 25 to be used as the predetermined state of anti-theft device, and the present invention also can be similarly be implemented predetermined state arbitrarily.So predetermined arbitrarily state can indicate by the sign of a respective encrypted, this sign needn't with the ciphering sequence number correspondence, only depend on selected first sign 1 of anti-theft device.Also can on the basis of first unification or the different signs 1, use different keys 10 according to predetermined state.
By method of the present invention and code device of the present invention, described just as top embodiment, first sign 1 of controller special use is encrypted and be stored among the EEPROM60 of control device 25 in manufacturer 70 there of controller 25.Can confirm the state of control device 25 simply by means of the decoding of recognition device 35, particularly can determine whether be in predetermined state, whether be in the original state of anti-theft device or controller 25 in the above in the example.By using described asymmetric encryption, under the situation of not knowing first key 10, can not outside control device 25 manufacturers 70, reach predetermined state.So promptly can produce the predetermined state of control device 25 or anti-theft device safely, also can discern predetermined state safely.
Make the ciphering process that is carried out only be directed to this controller by the sequence number 1 that uses the controller special use, just, clone or copies data all can not be successful for wanting to use on another automobile.Make and outside the manufacturer 70 of control device 25, to encrypt by asymmetric encryption.
Claims (10)
1. the method for the predetermined state of an anti-theft device that is provided for equipment, it is characterized in that: first sign (1) that is used for this anti-theft device is by first key (10), especially, a private key is encrypted, thereby produce an encryption identification (20), the predetermined state of this this anti-theft device of encryption identification sign.
2. the method for claim 1, it is characterized in that, the 3rd sign (20) of this anti-theft device is with second key (15), especially a disclosed key is decoded, to produce second sign (5), and this second sign (5) quilt and first sign (1) are relatively, and under first sign (1) and second sign (5) corresponding to situation, the predetermined state of anti-theft device is identified.
3. method as claimed in claim 2 is characterized in that, second key (15) is different with first key (10), wherein uses the encryption of first key (10) and asymmetric with the decoding of second key (15).
4. according to one of aforesaid right requirement described method, it is characterized in that the sign of device-specific is selected as first sign (1).
5. according to the described method of one of aforesaid right requirement, it is characterized in that this encryption identification (20) is stored in the control device (25) of this anti-theft device.
6. method according to claim 5, when this claim 5 is quoted one of claim 2 to 4, it is characterized in that only under the situation of the predetermined state that identifies this anti-theft device, the control device of anti-theft device (25) just mates with the miscellaneous part of anti-theft device.
7. according to the described method of claim 2 to 6, it is characterized in that, determine first sign (1) and second identify (5) inconsistent, and under the situation that the predetermined state of this anti-theft device is not identified thus, the use of anti-theft device is closed.
8. method according to claim 7 when right requires 7 to quote claim 5 or 6, is characterized in that, the use of the control device (25) of this anti-theft device is closed.
9. the code device (30) of the predetermined state of an anti-theft device that is provided for equipment, it is characterized in that: be provided with a coding unit (40), this coding unit is with first key (10), especially private key, come first sign (1) of anti-theft device is encrypted, thereby produced encryption identification (20), the predetermined state of this encryption identification sign anti-theft device.
10. an identification is used for the recognition device (35) of predetermined state of the anti-theft device of equipment, it is characterized in that, be provided with a decoding unit (45), this decoding unit is with second key (15), especially disclosed key, come the 3rd sign (20) of anti-theft device is decoded, to produce second sign (5); And being provided with a comparing unit (50), this comparing unit compares first sign (1) of second sign (5) and anti-theft device; And being provided with a detecting unit (55), this detecting unit identifies the predetermined state of anti-theft device under first sign (1) and second sign (5) corresponding to situation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004057982.2 | 2004-12-01 | ||
| DE200410057982 DE102004057982A1 (en) | 2004-12-01 | 2004-12-01 | A method for establishing a predetermined state of an immobilizer for a device, encryption device and recognition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782312A true CN1782312A (en) | 2006-06-07 |
Family
ID=36390127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510128929 Pending CN1782312A (en) | 2004-12-01 | 2005-12-01 | Method for setting anti-theft device predefined state of apparatus, encrypting device and recognizing device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1782312A (en) |
| DE (1) | DE102004057982A1 (en) |
| FR (1) | FR2878669A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746465A (en) * | 2019-03-27 | 2020-10-09 | 广州汽车集团股份有限公司 | Automatic vehicle locking system and automatic vehicle locking method and unlocking method thereof |
-
2004
- 2004-12-01 DE DE200410057982 patent/DE102004057982A1/en not_active Withdrawn
-
2005
- 2005-11-30 FR FR0553638A patent/FR2878669A1/en not_active Withdrawn
- 2005-12-01 CN CN 200510128929 patent/CN1782312A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746465A (en) * | 2019-03-27 | 2020-10-09 | 广州汽车集团股份有限公司 | Automatic vehicle locking system and automatic vehicle locking method and unlocking method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004057982A1 (en) | 2006-06-08 |
| FR2878669A1 (en) | 2006-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110065470B (en) | Automobile control method and device based on NFC automobile key, automobile and storage medium | |
| JP5065387B2 (en) | Control method for mass-market vehicles using a common transmitter | |
| EP2672655B1 (en) | Electronic key registration system | |
| US20060208069A1 (en) | Mutual authentication security system with recovery from partial programming | |
| CN110136306B (en) | Vehicle key control method and system | |
| JPS6245875A (en) | Apparatus for closure-closure release of safety apparatus | |
| KR20140142993A (en) | Apparatus and method for assisting remote parking, and system thereof | |
| WO2014177904A1 (en) | Memory controller | |
| US10444792B2 (en) | Unlocking control system, method and wearable device using the same | |
| CN113645590B (en) | Method, device, equipment and medium for remotely controlling vehicle based on encryption algorithm | |
| CN111508110B (en) | Method and device for realizing remote locking of vehicle | |
| US20140266583A1 (en) | Capturing Code Sequences | |
| US10249181B2 (en) | Wireless relay device and wireless relay control system having the same | |
| CN1782312A (en) | Method for setting anti-theft device predefined state of apparatus, encrypting device and recognizing device | |
| CN1276394C (en) | Initialization of a chip card | |
| CN110443326B (en) | Method for improving safety of RFID (radio frequency identification) tag system | |
| KR100654556B1 (en) | Method and apparatus for starting engine of car using immobilizer system | |
| JP2006009333A (en) | Keyless entry system using cellular phone | |
| CN112241633A (en) | Bidirectional authentication implementation method and system for non-contact smart card | |
| US11599335B2 (en) | Vehicle and method of controlling the same | |
| EP1785339B1 (en) | System for controlling the tilting function of a cab of a motor vehicle preventing unauthorized cab-tilt operations, a motor vehicle comprising such system, a corresponding method of controlling a cab tilting function and a computer program and a computer readable medium therefore | |
| US20060211407A1 (en) | Method for improving security of mobile communication device | |
| US20070284942A1 (en) | Method for Data Security in Vehicle Components and Corresponding Vehicle Component | |
| CN113035249B (en) | Information tamper-proof system and method | |
| Wang et al. | A security module for car appliances |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20060607 |