CN2582053Y - External movable computer encryption storage device - Google Patents
External movable computer encryption storage device Download PDFInfo
- Publication number
- CN2582053Y CN2582053Y CN 02276292 CN02276292U CN2582053Y CN 2582053 Y CN2582053 Y CN 2582053Y CN 02276292 CN02276292 CN 02276292 CN 02276292 U CN02276292 U CN 02276292U CN 2582053 Y CN2582053 Y CN 2582053Y
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- chip
- encryption
- memory storage
- computing machine
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Abstract
The utility model provides an external movable computer encryption storage device, which comprises an external storage device, an external computer interface, an encrypting/ decrypting single chip which is connected between the external computer interface and the external storage device and can write all information from a computer into the storage device after being changed into illegible codes by high-speed encryption processing or return all illegible code information from the storage device to original ordered code information to be read out by the computer and an identity and code key verifying chip which is connected with the encrypting/ decrypting single chip and can allow a person with eligible identity to access and destroy information in the storage device. The utility model effectively raises safety and security of storing information. The utility model also has the advantages of complete function, convenient operation, reliable performance, convenient carrying, etc., and is an ideal external movable computer encryption storage device.
Description
The utility model relates to a kind of computing machine external storage device, computer encipher memory storage that can encrypt/decrypt during especially a kind of data in the computing machine read-write memory.
Advantages such as that the general external portable memory device of computing machine has is in light weight, be convenient for carrying.Can be connected to computer standard operating system, as Windows, Mac O.S, Linux, UNIX etc.The external portable memory device of this class computing machine comprises an external connection storage apparatus, a chromacoder and a computing machine circumscribed interface.Described external connection storage apparatus is Winchester disk drive or recordable CD ROM such as VCD, DVD etc., perhaps flash memory internal memory such as Flaxh Memory.Described chromacoder is serially connected with between external connection storage apparatus and the computer interface, is used to change the storage format of external connection storage apparatus, so that change the data of computing machine over to external connection storage apparatus, perhaps the data with external connection storage apparatus change computing machine over to.Yet, because this class external connection storage apparatus is not provided with any safety feature or encryption device, as long as anyone obtains that this memory storage promptly can read or change data on file or data wherein without authorization.For memory storage everyone, when losing or be stolen, memory storage can't destroy the data of having stored on the contrary on the other hand.Therefore, existing this class external connection storage apparatus does not possess reliable security performance and security performance.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of strong security, safe external movable computer to encrypt memory storage.
The utility model is realized by following technical proposal: it comprises the external connection storage apparatus that is used for the access information data, be used for this external connection storage apparatus is connected to the circumscribed interface of computing machine, be serially connected with the encryption/decryption process device between this computing machine circumscribed interface and the external connection storage apparatus, it is characterized in that described encryption/decryption process device comprises that all information materials from computing machine can be carried out high-speed encryption handles and to make it to become write storage device behind the mess code, perhaps all are returned computing from the mess code information of memory storage and return original sign indicating number information in order and the encrypt/decrypt single-chip of reading by computing machine, and link to each other with this single-chip can allow the access of status eligible, destroy the status and the key authentication chip of the information material of this memory storage.Also be connected between described encrypt/decrypt single-chip and the computing machine circumscribed interface one with USB 1394 or the serial signal high-speed transitions of Serial ATA or other serial bus interface for and the conversion of signals chip of column signal.The 99-124 pin of described encrypt/decrypt single-chip links to each other with the 70-89 pin of conversion of signals chip respectively, so that all signals from computing machine are carried out writing external connection storage apparatus after high-speed encryption is handled, and make the information material that is recorded in external connection storage apparatus become nothing mess code in all senses, perhaps all are returned from the mess code information of memory storage and read by computing machine after the original information of sign indicating number is in order returned in computing.13,15 pin of described conversion of signals chip link to each other with 2,3 pin of computing machine circumscribed interface respectively, so that will be converted to the also column signal of standard storage IDE after the serial signal high speed processing, the also column signal transitions that perhaps will store IDE is a serial signal.83,84,86,87 pin of described encrypt/decrypt single-chip link to each other with 5,6,4,3 pin of status and key authentication chip respectively, so that status and key information are authenticated by status voucher and key, eligible the present invention's device normally moves, and the high speed that information is provided is read or is write, otherwise, the present invention's device does not move fully, and the data module or destroy recorded information data that module makes memory storage automatically by auto-destruct or destroyed automatically of erasing automatically by installing additional; When the present invention's complete machine is lost,, make computing machine it can only be used as the brand-new hard disk processing of no any content, thereby effectively prevent information-leakage because of the device content stored is all the mess code that can't be read by any computer operating system.
Described storer is a hard disk, or CD, or floppy disk.
Described status voucher and key are for being recorded in electron key; or smart card, or non-contact type wireless numeral IC-card, or one or more modes of human biological characteristic such as fingerprint recognition card; so that reach multiple identification and authentication, and then the purpose of finishing the protection information security, not divulging a secret.
The utility model compared with prior art has following advantage and effect: owing to add an encryption/decryption process device on computing machine externally connected portable formula memory storage, allow by a status and key confirmation device, make the information material of this memory storage of status eligible access, perhaps destroy the prestored message data of this memory storage where necessary, to improve the security and the confidentiality of information material storage.In addition the utility model also has multiple functional, easy to operate, dependable performance, strong security, safe, characteristics such as be easy to carry, and therefore, is that a kind of comparatively desirable external movable computer is encrypted memory storage.
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the circuit connection diagram of the utility model and computing machine;
Fig. 3 is the transcriber circuit diagram of the utility model;
Fig. 4 is the encryption/decryption device circuit diagram of the utility model.
Below in conjunction with accompanying drawing the utility model is described further, is not limited in this but hold within the utility model.
Among the figure, 1 is computer, 2 is computing machine circumscribed interface, 3 is chromacoder, 4 is high speed signal encryption/decryption process device, 5 is external connection storage apparatus, and 6 is status and key confirmation device, for legal user's status voucher, portable hardware, electron key, intelligent IC-card or other status are confirmed assembly.
Computing machine circumscribed interface J5 is-the USB joint, its 1 pin is the power supply from computing machine, 4 pin ground connection, 2,3 pin link to each other with 15,13 pin of conversion of signals chip IC 1 respectively, between computing machine and device, transmit signal with preferable electric differential mode, soon being converted to the also column signal of standard storage IDE after the USB serial signal high speed processing, is the USB serial signal with standard storage IDE and column signal transitions perhaps.The model of conversion of signals chip IC 1 is DB53250C, wherein the 70-89 pin links to each other with encryption/decryption process chip IC 2 pairing 99-124 pin, the model of encryption/decryption process chip IC 2 is DB3250DJ, the 7-32 pin of this chip links to each other with the D0-D15 pin of memory storage IDE, when computing machine is wanted writing information, all information materials from computing machine carry out depositing memory storage in after high-speed encryption is handled through IC2, and the information that all are recorded in the memory storage is insignificant mess code.When computing machine will be from the memory storage sense information, all returned computing from the mess code information of memory storage through IC2 and return the original information of sign indicating number in order, pass computing machine back again after the IC1 conversion of signals becomes the USB serial signal.83,84,86,87 pin of encryption/decryption process chip IC 2 link to each other with 5,6,3,2 pin of status and key confirmation chip CN2 respectively, after status and key confirmation chip CN2 affirmation, only allow legal person's reading and writing, revise the information material in the memory storage, and for the illegal person of status, perhaps status is confirmed the loser, then by the external data module or destroy the module auto-destruct automatically or destroy the information material that writes down in the memory storage automatically of erasing automatically.97,125,126,127,128,80,75,76 pin of encryption/decryption process chip IC 2 link to each other with host side respectively, 34, the terminals that 5,3,2,37,41,40 pin are corresponding with storer respectively link to each other, realize interrupt request, again activation, wiring selection, signal indication, autodiagnosis, read-write be ready for, operations such as read request, write request.58,59,61 pin of encryption/decryption process chip IC 2 are the ensemble of this chip, as chip activation, choice of equipment, clock pulse selection etc.49 pin of encryption/decryption process chip IC 2 are electron key mistake or authentification failure indicator signal, and its method of operation still is connected with electron key in the serial signal mode.
Claims (7)
1, a kind of external movable computer is encrypted memory storage, it comprises the external connection storage apparatus that is used for the access information data, be used for this external connection storage apparatus is connected to the circumscribed interface of computing machine, be serially connected with the encryption/decryption process device between this computing machine circumscribed interface and the external connection storage apparatus, it is characterized in that described encryption/decryption process device comprises:
All information materials from computing machine can be carried out high-speed encryption and handle and to make it to become write storage device behind the mess code, perhaps all be returned computing from the mess code information of memory storage and return original sign indicating number information in order and the encrypt/decrypt single-chip of reading by computing machine; And
What link to each other with this encrypt/decrypt single-chip can allow the access of status eligible, destroys the status and the key authentication chip of the information material of this reservoir.
2, encryption memory storage according to claim 1, it is characterized in that also being connected between described encrypt/decrypt single-chip and the computing machine circumscribed interface one with USB 1394 or the serial signal high-speed transitions of SerialATA or other serial bus interface for and the conversion of signals chip of column signal.
3, encryption memory storage according to claim 1 is characterized in that (99)-(124) pin of described encrypt/decrypt single-chip links to each other with (70)-(89) pin of conversion of signals chip respectively.
4, encryption memory storage according to claim 1 is characterized in that (13) of described conversion of signals chip, (15) pin link to each other with (2), (3) pin of computing machine circumscribed interface respectively.
5, encryption memory storage according to claim 1 is characterized in that (83), (84), (86), (87) pin of described encrypt/decrypt single-chip links to each other with (5), (6), (4), (3) pin of status and key authentication chip respectively.
6, encryption memory storage according to claim 1 is characterized in that described memory storage is a hard disk, or CD, or floppy disk.
7, encryption memory storage according to claim 1 is characterized in that described status voucher and key for being recorded in electron key, or smart card, or non-contact type wireless numeral IC-card, or one or more modes of human biological characteristic such as fingerprint recognition card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276292 CN2582053Y (en) | 2002-08-28 | 2002-08-28 | External movable computer encryption storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276292 CN2582053Y (en) | 2002-08-28 | 2002-08-28 | External movable computer encryption storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582053Y true CN2582053Y (en) | 2003-10-22 |
Family
ID=33740179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276292 Expired - Fee Related CN2582053Y (en) | 2002-08-28 | 2002-08-28 | External movable computer encryption storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582053Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464313C (en) * | 2005-05-20 | 2009-02-25 | 联想(北京)有限公司 | Mobile memory device and method for accessing encrypted data in mobile memory device |
| CN101281497B (en) * | 2007-04-02 | 2011-01-19 | 北京爱国者存储科技有限责任公司 | Ciphering type mobile storage apparatus |
| CN101282210B (en) * | 2007-04-02 | 2011-03-23 | 北京爱国者存储科技有限责任公司 | System for ciphering small area information |
| CN104810036A (en) * | 2015-04-30 | 2015-07-29 | 王爱华 | Optical disk data encryption and decryption U disk and implementation method |
-
2002
- 2002-08-28 CN CN 02276292 patent/CN2582053Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464313C (en) * | 2005-05-20 | 2009-02-25 | 联想(北京)有限公司 | Mobile memory device and method for accessing encrypted data in mobile memory device |
| CN101281497B (en) * | 2007-04-02 | 2011-01-19 | 北京爱国者存储科技有限责任公司 | Ciphering type mobile storage apparatus |
| CN101282210B (en) * | 2007-04-02 | 2011-03-23 | 北京爱国者存储科技有限责任公司 | System for ciphering small area information |
| CN104810036A (en) * | 2015-04-30 | 2015-07-29 | 王爱华 | Optical disk data encryption and decryption U disk and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |