CN105930737A - U-port mobile hard disk used for data encryption and decryption of network and external storage and realizing method thereof - Google Patents
U-port mobile hard disk used for data encryption and decryption of network and external storage and realizing method thereof Download PDFInfo
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- CN105930737A CN105930737A CN201610327669.0A CN201610327669A CN105930737A CN 105930737 A CN105930737 A CN 105930737A CN 201610327669 A CN201610327669 A CN 201610327669A CN 105930737 A CN105930737 A CN 105930737A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
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Abstract
The invention relates to a U-port mobile hard disk used for data encryption and decryption of a network and an external storage and realizing method thereof. The realizing method comprises the steps of uploading a code by a mobile hard disk firmware storage module and entering a waiting mode after code uploading is successful; inputting a network transmission and external storage reading-writing mode by an external keyboard; if the network transmission and external storage writing-writing mode is an external storage encrypted uploading/writing mode, writing data into the mobile hard disk, encrypting the data by a mobile hard disk firmware encryption unit, reading the encrypted data from the mobile hard disk by a computer, uploading the encrypted data in the internet or writing the encrypted data into the external storage; and if the network transmission and external storage reading-writing mode is an external storage decrypted downloading/reading module, downloading the encrypted data from the internet or reading the encrypted data from the external storage by the computer and writing the data into the mobile hard disk, then reading the encrypted data from the mobile hard disk, decrypting the encrypted data by a mobile hard disk firmware decryption unit and transmitting the decrypted data to the computer. According to the method and the device provided by the invention, encryption and decryption of computer data information when being transmitted in the network or written or read by an external storage medium is realized, and safety of important sensitive data information is protected efficiently.
Description
Technical field
The present invention relates to field of computer information security, particularly relate to a kind of for network and external memory data encryption solution
Close U mouth portable hard drive and implementation method.
Background technology
Information as a kind of resource, its universality, sharing, appreciation, handlability and multi-purpose,
It is made to have the meaning of particular importance for the mankind.The essence of information security seeks to protect information resources from respectively
The threat of type, disturb and destroy, i.e. the safety of guarantee information.According to the definition of International Organization for Standardization,
The implication of Information Security is primarily referred to as the integrity of information, availability, confidentiality and reliability.Information security
It is the problem that all must attach great importance to of any country, government, department, industry, is a country that can not be ignored
Security strategy.
Currently, vast computer user will carry out the Internet transmission or storage backup often to data message
In exterior storage medium (such as equipment such as Fixed disk, portable hard drive, CD, USB flash disks), these data are believed
Breath contains government offices and army, enterprises and institutions and the mass data of numerous personal users, many of which
Data message is height confidential data, how to guarantee the safety of these data messages, prevents information leakage with stolen
Become main bugbear.
In data message carries out the Internet transmission and stores the application backuping to exterior storage medium, user one side
Face needs the data of encryption to be uploaded by the Internet or backuped to exterior storage medium to protect, on the other hand
The data from the Internet download or from exterior storage medium reading encryption are needed again to be decrypted.In prior art
In, with the solution of software cryptography manner of decryption, it is by various AESs, data message shell adding to be protected,
The computer operating system that places one's entire reliance upon and application software, intensity and the safe coefficient of its encryption are the highest, hold very much
Easily cause the leakage in data information network transmission and storage backup with stolen.Such as publication number CN104426973A
Patent disclose a kind of cloud database encryption method, system and device；Publication No. CN104378386A
Patent documentation discloses the protection of a kind of cloud data confidentiality and accesses the method controlled.Both clouds data encryption side
Case all uses software enciphering method.The patent of publication number CN102592634A discloses one and prevents DVD video
The pure software level encryption method that CD is copied illegally；The patent of Publication No. CN101499304 discloses one
Preventing CD and the DVD encryption method of CD bootlegging, this scheme uses software enciphering method.
In the prior art, with the solution of hardware cipher mode, it it is the enciphering/deciphering by hardware chip level
And do not rely on computer operating system and application software, thus Cipher Strength and safety are high, it is therefore prevented that sensitive
The leakage of data message, protects the safety of user's significant data.Prior art uses hardware cipher mode
Encryption hard disk/portable hard drive/CD/USB flash disk etc., it is common that computer is encrypted state after writing data into, but
Reading these data again and then become decrypted state, the mode of this encrypting and decrypting and process only achieve locally stored
The encrypting and decrypting of medium, not disclosure satisfy that data message backups to outside other in the Internet transmission and unloading
The application of encrypting and decrypting during storage medium needs.In the prior art, Publication No. CN104834873A
Patent discloses a kind of USB flash disk for cloud data message encrypting and decrypting and implementation method, it is achieved that to internet cloud
The encryption of data and deciphering, effectively prevent the leakage of sensitive information in cloud data, protect the peace of cloud data
Entirely；The patent of Publication No. CN104810036A discloses a kind of U for data of optical disk information encrypting and decrypting
Dish and implementation method, it is achieved that to encryption during computer writable disc media data and deciphering, be effectively prevented
The sensitive data information leakage being burnt on CD is gone out, and protects the safety of significant data.But this utilization
USB flash disk hardware logic and software algorithm realize data encryption and decryption, because of the performance deficiency of USB flash disk self, also exist
The deficiency such as speed responsing during encrypting and decrypting is slow, data capacity is little, poor stability, service life are short, brings
Many during user uses is inconvenient.
Summary of the invention
For the problem appeared in background technology, the invention provides a kind of for network and external memory data encryption
The U mouth portable hard drive of deciphering, utilizes the hardware logic of portable hard drive and software algorithm to realize data information network and pass
Defeated and external memory medium read and write during encryption and deciphering, safe coefficient is high, it is therefore prevented that the leakage of data message with
Stolen, and the speed of data ciphering and deciphering is fast, capacity big, good stability, easy to use.Described movement is hard
Dish includes:
Portable hard drive firmware encrypting/deciphering module, has been used for the transmission of computer data information network or external memory
Encrypting and decrypting during medium read-write；
Password memory module, for preserving the password of user setup, and verifies comparison user and carries from portable hard drive
Keyboard or the password of computer Chinese input with keyboard；
Mode selection logic module, carries keyboard or computer Chinese input with keyboard for receiving user from portable hard drive
Data network transmission or the pattern of external memory medium read-write.
Preferably, described portable hard drive has instructed data information network transmission with outer according to computer platform
Deposit encrypting and decrypting during medium read-write.
In any of the above-described scheme preferably, described user carries from portable hard drive or computer Chinese input with keyboard
Data network transmission and external memory medium read-write mode, including data network upload/write external memory media encryption pattern and
External memory medium decryption mode is downloaded/read to data network.
In any of the above-described scheme preferably, described portable hard drive firmware encrypting/deciphering module includes that firmware adds
Close unit and firmware decryption unit.
In any of the above-described scheme preferably, described ciphering unit for by be uploaded in computer/write external memory
Data be encrypted, computer reads described encryption data from portable hard drive and carries out outside network uploads/write
Deposit medium.
In any of the above-described scheme preferably, described decryption unit in computer from the Internet download/
External memory medium reads and is saved in the encryption data of portable hard drive and is decrypted.
In any of the above-described scheme preferably, in described password memory module, the password of storage is passed through to move by user
Dynamic hard disk carries keyboard or computer Chinese input with keyboard, must input password, password the most then portable hard drive during use
Enter standby mode.
In any of the above-described scheme preferably, described portable hard drive firmware encrypting/deciphering module will be by encrypting
In algorithm and described password memory module, the password of storage bundlees, it is achieved the encrypting and decrypting to data.
Present invention also offers a kind of U mouth portable hard drive realization side for network and external memory data ciphering and deciphering
Method, utilizes the hardware logic of portable hard drive and software algorithm to realize computer data information at network transmission and external memory
Encryption during medium read-write and deciphering, said method comprising the steps of:
Portable hard drive device inserts computer USB port, after power-on self-test initializes, detects password memory module
In whether have user and carried the password of keyboard or computer Chinese input with keyboard by portable hard drive；
If described password memory module has password and correct judgment, then portable hard drive firmware encrypting/deciphering module
Completing password to load, otherwise circular wait user inputs password again；
Password loads successfully, then portable hard drive device enters standby mode, waits that user is carried by portable hard drive
The pattern that keyboard or computer Chinese input with keyboard data network transmission or external memory medium are read and write.
Preferably, described portable hard drive has instructed the transmission of paired data network according to computer platform and external memory is situated between
Encrypting and decrypting during matter read-write.
In any of the above-described scheme preferably, described user carries from portable hard drive or computer Chinese input with keyboard
Data network transmission and external memory medium read-write mode, including data network upload/write external memory media encryption pattern and
External memory medium decryption mode is downloaded/read to data network.
In any of the above-described scheme preferably, described portable hard drive firmware encrypting/deciphering module includes that firmware adds
Close unit and firmware decryption unit.
In any of the above-described scheme preferably, holding of external memory media encryption pattern is uploaded/write to described data network
Row step includes:
External memory media encryption pattern is uploaded/write to user-selected number according to network；
Computer by be uploaded/write external memory data write portable hard drive；
These data are encrypted by portable hard drive firmware encrypting unit；
Computer reads this encryption data from portable hard drive to carry out the Internet and uploads/write external memory medium.
In any of the above-described scheme preferably, holding of external memory medium decryption mode is downloaded/read to described data network
Row step includes:
External memory medium decryption mode is downloaded/read to user-selected number according to network；
Computer reads encryption data from the Internet download/external memory medium；
This encryption data write portable hard drive is preserved by computer；
When computer reads this encryption data from portable hard drive, portable hard drive firmware decryption unit is by this encryption number
According to decrypted transport to computer.
In any of the above-described scheme preferably, in described password memory module, the password of storage is passed through to move by user
Dynamic hard disk carries keyboard or computer Chinese input with keyboard, must input password, password the most then portable hard drive during use
Enter standby mode.
In any of the above-described scheme preferably, described portable hard drive firmware encrypting/deciphering module will be by encrypting
In algorithm and described password memory module, the password of storage bundlees, it is achieved the encrypting and decrypting to data.
Portable hard drive and implementation method that the present invention provides achieve computer data information in the Internet transmission
Backup to the encrypting and decrypting during exterior storage medium with storage, effectively prevent sensitive information in data
Reveal, protect the safety of significant data.This programme can be widely applied to the computer interconnection of privacy requirements
In the unloading backup of network data transmission and significant data, it is particularly suitable for protecting Enterprise business confidential information and individual
Privacy.
Accompanying drawing explanation
Fig. 1 is the U mouth for network and external memory data ciphering and deciphering shown in the present invention one exemplary embodiment
Mobile hard disk system structural representation.
Fig. 2 is real according to the U mouth portable hard drive for network and external memory data ciphering and deciphering shown in the present invention
Existing method flow diagram.
Detailed description of the invention
Combine exemplary embodiment with reference to the accompanying drawings the application is described.
Embodiment 1:
Present embodiment discloses a kind of U mouth portable hard drive for network and external memory data ciphering and deciphering, utilize
The hardware logic of portable hard drive and software algorithm realize encryption and the deciphering of data, and described portable hard drive includes:
Portable hard drive firmware encrypting/deciphering module, has been used for the transmission of computer data information network and external memory
Encrypting and decrypting during medium read-write；
Password memory module, for preserving the password of user setup, and verifies comparison user and carries from portable hard drive
Keyboard or the password of computer Chinese input with keyboard；
Mode selection logic module, carries keyboard or computer Chinese input with keyboard for receiving user from portable hard drive
Data network transmission and the pattern of external memory medium read-write.
Wherein, described portable hard drive has instructed according to computer platform and has been situated between data information network transmission or external memory
Encrypting and decrypting during matter read-write.Described user carries from portable hard drive or the data network of computer Chinese input with keyboard passes
Defeated and external memory medium read-write mode, uploads/writes including data network under external memory media encryption pattern and data network
Carry/read external memory medium decryption mode.Described portable hard drive firmware encrypting/deciphering module include firmware encrypting unit and
Firmware decryption unit.Described ciphering unit for be uploaded in computer/data of writing external memory are encrypted,
Computer reads described encryption data from portable hard drive to carry out network and uploads/write external memory medium.Described deciphering
Unit is for the encryption data reading and being saved in portable hard drive in computer from the Internet download/external memory medium
It is decrypted.In described password memory module, the password of storage is carried keyboard or calculating by user by portable hard drive
Machine input through keyboard, must input password during use, password the most then portable hard drive enters standby mode.Described shifting
Dynamic hard disk firmware encrypting-decrypting module is by entering the password of storage in AES and described password memory module
Row binding, it is achieved the encrypting and decrypting to data.
Beneficial effect: the special encrypting and decrypting portable hard drive that the present embodiment provides achieves computer data information
Encrypting and decrypting when the Internet transmission and storage backup to exterior storage medium, effectively prevent in data quick
The leakage of sense information, protects the safety of significant data.This programme can be widely applied to the meter of privacy requirements
In the unloading backup of calculation machine Internet data transmission and significant data, it is particularly suitable for protecting Enterprise business confidential information
And individual privacy.
Embodiment 2:
As it is shown in figure 1, for shown in the present invention one exemplary embodiment for network and external memory data ciphering and deciphering
U mouth Mobile hard disk system structural representation.This system mainly includes four major parts: computer platform,
The Internet, external memory medium (Fixed disk, portable hard drive, CD, USB flash disk etc.) and network or outer deposit data add
The U mouth portable hard drive of close deciphering.The encryption/decryption unit of the Internet and external memory media data is divided by the shifting of special U mouth
Dynamic hard disk realizes, and computer is only born as the transmission medium of the Internet/between external memory media data and portable hard drive
The transmission of duty information and transmission simple instruction, computer is connected with internet data by network interface, passes through
External memory Media Interface Connector is connected with external memory medium, and U mouth portable hard drive connects computer by USB interface.Data exist
Network is in encrypted state during uploading and downloading or read and write external memory medium, in the most whole transmission link
The external world is the data of this encryption of None-identified, downloads or reads the outer data being stored in computer if not by mobile hard
Dish completes to decipher and cannot be carried out checking of information equally, such as, in company's routine work, employee all can be from interconnection
Load off the net or from external memory medium replicate corresponding data, but if do not deciphered by portable hard drive for adding confidential information
The information that then cannot complete reads.
When user has secure content data to need by network and uploads/write backup in external memory medium, computer
First by be uploaded/write external memory data write portable hard drive, portable hard drive firmware encrypting unit is by said write
Data are encrypted, and computer reads described encryption data from portable hard drive again and uploads/write external memory by network
In medium.
When secure content required during external memory medium is downloaded/read to users from networks, the number that computer obtains
According to for encrypted state, then by USB interface by described secure content information write portable hard drive, mobile hard
Firmware decryption unit in dish completes the deciphering of this secure content information and is sent to computer.
Described portable hard drive device includes that USB interface controls logic: according to usb bus standard, adaptive mobile
Hardware logic between hard disk and USB interface of computer；Data transmission or external memory mode selection logic: be used for connecing
Receive user and carry keyboard or the data network transmission of computer Chinese input with keyboard or the pattern of external memory from portable hard drive；Close
Code reads in logic: receive and preserve the password from external keyboard input；MCU: be responsible for portable hard drive soft,
Hardware controls；ROM firmware: the software program of portable hard drive, it includes again usb communication module, encryption
Arrange and correction verification module, hard disk media module for reading and writing with decipherment algorithm module, password；RAM: software program
The temporary storage location of operational data；Password memory module: for preserving the password of user setup, and verify comparison use
Family carries the password of keyboard or computer Chinese input with keyboard from portable hard drive；Hard disk media interface logic: for adaptation
Hardware logic between MCU bus and the parallel/serial interface of hard disk；Hard disk media: machinery/solid-state/hybrid hard disk, uses
In preserving the enciphering/deciphering data that computer-readable is write.
Beneficial effect: the special encrypting and decrypting portable hard drive that the present embodiment provides achieves computer data information
Encrypting and decrypting when the Internet transmission and storage backup to exterior storage medium, effectively prevent in data quick
The leakage of sense information, protects the safety of significant data.This programme can be widely applied to the meter of privacy requirements
In the unloading backup of calculation machine Internet data transmission and significant data, it is particularly suitable for protecting Enterprise business confidential information
And individual privacy.
Embodiment 3:
Present embodiments provide a kind of U mouth portable hard drive realization side for network and external memory data ciphering and deciphering
Method, utilizes the hardware logic of portable hard drive and software algorithm to realize encryption and the deciphering of data, and described method includes:
Portable hard drive device inserts computer USB port, after power-on self-test initializes, in detection password memory module is
The no user of having carries the password of keyboard or computer Chinese input with keyboard by portable hard drive；If described password storage mould
Block has password and correct judgment, then portable hard drive firmware encrypting/deciphering module completes password loading, otherwise follows
Ring waits that user inputs password again；Password loads successfully, then portable hard drive device enters standby mode, waits
User by portable hard drive carry keyboard or computer Chinese input with keyboard data network transmission and external memory medium read-write
Pattern.
Wherein, described portable hard drive has instructed the transmission of paired data network according to computer platform and external memory medium is read
Encrypting and decrypting when writing.Described user carry from portable hard drive or computer Chinese input with keyboard data network transmission and
The pattern that external memory medium is read, including data network upload/write external memory media encryption pattern and data network download/
Read external memory medium decryption mode.Described portable hard drive firmware encrypting/deciphering module includes that firmware encrypting unit is with solid
Part decryption unit.
Described data network is uploaded/is write the execution step of external memory media encryption pattern and includes: user-selected number is according to net
External memory media encryption pattern is uploaded/write to network；Computer by be uploaded/write external memory data write portable hard drive；Move
These data are encrypted by dynamic hard disk firmware ciphering unit；Computer reads this encryption data from portable hard drive to be carried out
External memory medium is uploaded/write in the Internet.
Described data network is downloaded/is read the execution step of external memory medium decryption mode and includes: user-selected number is according to net
External memory medium decryption mode is downloaded/read to network；Computer reads encryption data from the Internet download/external memory medium；Meter
This encryption data write portable hard drive is preserved by calculation machine；When computer reads this encryption data from portable hard drive,
Portable hard drive firmware decryption unit by this encryption data decrypted transport to computer.
Wherein, in described password memory module, the password of storage is carried keyboard or calculating by user by portable hard drive
Machine input through keyboard, must input password during use, password the most then portable hard drive enters standby mode.Described shifting
Dynamic hard disk firmware encrypting-decrypting module is by entering the password of storage in AES and described password memory module
Row binding, it is achieved the encrypting and decrypting to data.
Beneficial effect: the method that the present embodiment provides achieves and deposits in the Internet transmission computer data information
Storage backups to encrypting and decrypting during exterior storage medium, effectively prevent the leakage of sensitive information in data, protects
Protect the safety of significant data.Meanwhile, this programme can be widely applied to industry-by-industry the calculating of privacy requirements
Machine Internet data transmission and significant data unloading backup in, be particularly suitable for protect Enterprise business confidential information with
And individual privacy.
Embodiment 4:
As in figure 2 it is shown, for shown in the present invention one exemplary embodiment for network and external memory data ciphering and deciphering
U mouth portable hard drive implementation method flow chart.
As it can be seen, portable hard drive device inserts computer USB port, after power-on self-test initializes, detect close
Whether code memory module there is user and is carried the password of keyboard or computer Chinese input with keyboard by portable hard drive；If
Described password memory module has password and correct judgment, then portable hard drive firmware encrypting/deciphering module completes close
Code loads, and otherwise circular wait user inputs password again；Password loads successfully, then portable hard drive device just enters
The mode of operation of encrypting and decrypting when entering data information network transmission and external memory, waits that user is carried by portable hard drive
The pattern that keyboard or computer Chinese input with keyboard data network transmission or external memory medium are read and write.
If selecting data network to upload/write external memory media encryption pattern, computer by be uploaded/write the data of external memory
These data are encrypted by write portable hard drive by portable hard drive firmware encrypting unit, and computer is again from mobile hard
Dish reads this encryption data to carry out the Internet and uploads/write external memory medium；If selecting data network to download/read external memory
Medium decryption mode, then computer reads encryption data and by this encryption data from the Internet download/external memory medium
Write portable hard drive preserves, when computer reads this encryption data from portable hard drive, and portable hard drive firmware solution
Close unit by this encryption data decrypted transport to computer；After network transmits/read and write external memory medium, continue
Continuous entrance data network transmission or external memory model selection stage.
Beneficial effect: the method that the present embodiment provides achieves and deposits in the Internet transmission computer data information
Storage backups to encrypting and decrypting during exterior storage medium, effectively prevent the leakage of sensitive information in data, protects
Protect the safety of significant data.Meanwhile, this programme can be widely applied to industry-by-industry the calculating of privacy requirements
Machine Internet data transmission and significant data unloading backup in, be particularly suitable for protect Enterprise business confidential information with
And individual privacy.
In order to be more fully understood that the present invention, above in association with specific embodiment, the present invention is explained in detail.But,
Obviously the present invention can be carried out different modification and remodeling and broader without departing from the present invention that claim limits
Spirit and scope.Therefore, above example has exemplary and does not has conditional implication.
Claims (16)
1., for network and the U mouth portable hard drive of external memory data ciphering and deciphering, utilize the hardware of portable hard drive to patrol
Collect and software algorithm realize the computer data information encryption when network transmission and external memory medium are read and write and deciphering,
The data that computer network is i.e. uploaded/write external memory medium are encrypted, to computer from network download/external memory
The encryption data that medium reads is decrypted, it is characterised in that described portable hard drive includes:
Portable hard drive firmware encrypting/deciphering module, has been used for the transmission of computer data information network and external memory
Encrypting and decrypting during medium read-write；
Password memory module, for preserving the password of user setup, and verifies comparison user and carries from portable hard drive
Keyboard or the password of computer Chinese input with keyboard；
Mode selection logic module, carries keyboard or computer Chinese input with keyboard for receiving user from portable hard drive
Data network transmission and the pattern of external memory medium read-write.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 1,
It is characterized in that, described portable hard drive has instructed data information network transmission or external memory according to computer platform
Encrypting and decrypting during medium read-write.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 1,
It is characterized in that, described user carries from portable hard drive or the data network transmission of computer Chinese input with keyboard and external memory
The pattern of medium read-write, uploads/writes including data network outside external memory media encryption pattern and data network download/reading
Deposit medium decryption mode.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 3,
It is characterized in that, described portable hard drive firmware encrypting/deciphering module includes that firmware encrypting unit and firmware deciphering are single
Unit.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 4,
It is characterized in that, described ciphering unit for be uploaded in computer/data of writing external memory are encrypted, meter
Calculation machine reads described encryption data from portable hard drive to carry out network and uploads/write external memory medium.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 4,
It is characterized in that, described decryption unit is for reading in computer from the Internet download/external memory medium and preserve
Encryption data to portable hard drive is decrypted.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 1,
It is characterized in that, in described password memory module, the password of storage is carried keyboard or meter by user by portable hard drive
Calculation machine input through keyboard, must input password during use, password the most then portable hard drive enters standby mode.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 1,
It is characterized in that, described portable hard drive firmware encrypting/deciphering module is by storing AES and described password
In module, the password of storage bundlees, it is achieved the encrypting and decrypting to data.
9., for network and the U mouth portable hard drive implementation method of external memory data ciphering and deciphering, utilize portable hard drive
Hardware logic and software algorithm realize encryption and the deciphering of data, it is characterised in that described method includes following
Step:
Portable hard drive device inserts the USB port of computer, after power-on self-test initializes, and detection password storage mould
Whether block has user and is carried the password of keyboard or computer Chinese input with keyboard by portable hard drive；
If described password memory module has password and correct judgment, then portable hard drive firmware encrypting/deciphering module
Completing password to load, otherwise circular wait user inputs password again；
Password loads successfully, then portable hard drive device enters standby mode, waits that user is carried by portable hard drive
The pattern that keyboard or computer Chinese input with keyboard data network transmission and external memory medium are read and write.
U mouth portable hard drive for network and external memory data ciphering and deciphering the most according to claim 9 is real
Existing method, it is characterised in that described portable hard drive according to computer platform instruct paired data network transmit or
The encrypting and decrypting during read-write of external memory medium.
The 11. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 9 are real
Existing method, it is characterised in that described user carries from portable hard drive or the data network of computer Chinese input with keyboard passes
Defeated and external memory pattern, uploads/writes external memory media encryption pattern including data network and external memory is downloaded/read to data network
Medium decryption mode.
The 12. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 11
Implementation method, it is characterised in that described portable hard drive firmware encrypting/deciphering module include firmware encrypting unit and
Firmware decryption unit.
The 13. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 12
Implementation method, it is characterised in that the execution step bag of external memory media encryption pattern is uploaded/write to described data network
Include:
External memory media encryption pattern is uploaded/write to user-selected number according to network；
Computer by be uploaded/write external memory data write portable hard drive；
These data are encrypted by portable hard drive firmware encrypting unit；
Computer reads this encryption data from portable hard drive to carry out the Internet and uploads/write external memory medium.
The 14. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 12
Implementation method, it is characterised in that the execution step bag of external memory medium decryption mode is downloaded/read to described data network
Include:
External memory medium decryption mode is downloaded/read to user-selected number according to network；
Computer reads encryption data from the Internet download/external memory medium；
This encryption data write portable hard drive is preserved by computer；
When computer reads this encryption data from portable hard drive, portable hard drive firmware decryption unit is by this encryption number
According to decrypted transport to computer.
The 15. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 9 are real
Existing method, it is characterised in that in described password memory module, the password of storage is carried by portable hard drive by user
Keyboard or computer Chinese input with keyboard, must input password during use, password the most then portable hard drive enters and waits mould
Formula.
The 16. U mouth portable hard drives for network and external memory data ciphering and deciphering according to claim 9 are real
Existing method, it is characterised in that described portable hard drive firmware encrypting/deciphering module is by by AES and described
In password memory module, the password of storage bundlees, it is achieved the encrypting and decrypting to data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327669.0A CN105930737A (en) | 2016-05-18 | 2016-05-18 | U-port mobile hard disk used for data encryption and decryption of network and external storage and realizing method thereof |
Applications Claiming Priority (1)
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Cited By (1)
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| CN115859396A (en) * | 2023-03-02 | 2023-03-28 | 绿晶半导体科技(北京)有限公司 | Encryption read-write system of solid state disk |
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