CN104766620A - Encrypted USB flash disk - Google Patents

Encrypted USB flash disk Download PDF

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Publication number
CN104766620A
CN104766620A CN201410845858.8A CN201410845858A CN104766620A CN 104766620 A CN104766620 A CN 104766620A CN 201410845858 A CN201410845858 A CN 201410845858A CN 104766620 A CN104766620 A CN 104766620A
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CN
China
Prior art keywords
cpu
encrypted
disk
encryption
passive
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
Application number
CN201410845858.8A
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Chinese (zh)
Inventor
陈茂荣
刘有雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan City Cat Owl Suo Ye Co Ltd
Original Assignee
Dongguan City Cat Owl Suo Ye Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan City Cat Owl Suo Ye Co Ltd filed Critical Dongguan City Cat Owl Suo Ye Co Ltd
Priority to CN201410845858.8A priority Critical patent/CN104766620A/en
Publication of CN104766620A publication Critical patent/CN104766620A/en
Pending legal-status Critical Current

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    • Y02B60/50

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  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides an encrypted USB flash disk. The encrypted USB flash disk comprises a CPU, USB interfaces, a Flash memory, a passive encryption IC and an NFC antenna in wireless connection with an NFC mobile phone. The CPU is connected with the Flash memory; the USB interfaces are respectively connected with the CPU and the Flash memory; the passive encryption IC is connected with the CPU; and the NFC antenna is connected with the passive encryption IC. The encrypted USB flash disk provided by the invention has the following advantages: the NFC mobile phone can be used to send an identifying code to the encrypted USB flash disk so as to realize decryption and unlocking as well as locking of the encrypted USB flash disk no matter in an on-line or off-line state; the encrypted USB flash disk is automatically locked when pulled down after usage; and the encrypted USB flash disk is convenient to use and can effectively guarantee data security.

Description

A kind of encrypted U disk
Technical field
The present invention relates to a kind of encrypted U disk.
Background technology
USB flash disk is a kind of equipment often needing in routine office work to use, general USB flash disk is all directly insert computer just can use, and therefore security is very low, when particularly storing vital document inside USB flash disk, if accidentally missed, just likely stolen by others or divulge a secret.
Through retrieval, Authorization Notice No. is: CN 203415235 U, authorized announcement date is: the Chinese utility model patent of 2014.01.29 discloses a kind of Multifunctional U disk, this USB flash disk not only supports memory function, other various contactless application functions can also be expanded by embedded NFC chip and NFC antenna, but the utility model does not relate to the encryption function of USB flash disk, therefore it cannot realize the encryption to USB flash disk.
And for example application publication number is CN 103532598 A, Shen Qing Publication day is that the Chinese invention patent of 2014.01.22 discloses the integrated system and method for a kind of multifunctional near-field communication, wherein said multifunctional near-field communication integrated system refer to safe U disc, it is by realizing the control to NAND Flash at the built-in USB flash disk controller of USB encryption chip, to realize the encryption of USB flash disk, but this cipher mode can only be encrypted the USB flash disk being configured with USB encryption chip, then cannot realize for common USB flash disk, and this safe U disc cannot realize off-line (namely safe U disc does not insert use) decipher function.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of encrypted U disk, utilize NFC mobile phone to send identifying code to encrypted U disk to realize unlocking the deciphering of encrypted U disk and locking, and no matter online or off-line all can realize deciphering unblock, and can automatically shut after pulling up, therefore not only easy to use, and can effective guarantee data security.
The present invention is achieved in that a kind of encrypted U disk, comprise a CPU, a USB interface, a flash storage, a passive NFC antenna of encrypting IC and one and NFC mobile phone wireless connections, described CPU is connected with described flash storage, described USB interface is connected to described CPU and Flash respectively and stores, described passive encryption IC is connected with described CPU, and described NFC antenna is connected with the described passive IC that encrypts;
Described NFC antenna produces a small voltage and electric current when sensing NFC mobile phone, the voltage and current of this generation supports the work of described passive encryption IC and CPU, described NFC antenna receives the identifying code that NFC mobile phone sends simultaneously, and this identifying code is sent to described passive encryption IC and carries out contrast verification, if identifying code is correct, then described passive encryption IC transmission instruction controls the unblock of described flash storage to described CPU, this CPU and locks; If identifying code is incorrect, then cannot unlock.
Further, between described CPU with described flash storage, between described USB interface with described CPU, between described USB interface with described flash storage, the described passive IC of encryption with between described CPU and described NFC antenna be all connected by bus with described passive encryption between IC.
Further, also comprise a mainboard and an antenna plate, described CPU, flash storage, passive encryption IC and bus are all integrated on described mainboard; Described NFC antenna is arranged in described antenna plate, and the spacing d >=2mm between described antenna plate and described mainboard.
Further, also comprise a hummer, a LED and a battery, described hummer and battery are all arranged on described mainboard, and described LED is arranged on described antenna plate, and described hummer and LED are all connected with described battery.
Beneficial effect of the present invention is as follows: 1, utilize NFC mobile phone to send identifying code to encrypted U disk and unlock to the deciphering realizing encrypted U disk, can automatically shut again after pulling up, this is not only conducive to licensing other user's singles, and can the safety of effective guarantee data.2, no matter encrypted U disk is in electricity or without under the state of electricity, namely no matter whether encrypted U disk is inserted use and all can perform unlocking motion, and user can carry out authenticated encryption USB flash disk by the sound of hummer is be in released state or be in pass lock status, very convenient when therefore using.3, this encrypted U disk is in complete zero power consumption state when not using, and only has just to be responded to by the NFC antenna of NFC mobile phone and encrypted U disk in use and carrys out generation current for CPU and passive encryption IC, therefore have energy-saving effect.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the plan structure figure of a kind of encrypted U disk of the present invention.
Fig. 2 is the front elevation of a kind of encrypted U disk of the present invention.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, a kind of encrypted U disk 100, comprise a CPU1, mainboard 2, USB interface 3, a passive encryption IC4, one and NFC antenna 5, flash storage 6, hummer 7, LED (not shown), battery 8 and an antenna plate 9 of NFC mobile phone (not shown) wireless connections, described CPU1 is connected with described flash storage 6, described USB interface 3 is connected to described CPU1 and flash storage 6 respectively, described passive encryption IC4 is connected with described CPU1, and described NFC antenna 5 is connected with the described passive IC4 that encrypts;
Described NFC antenna 5 produces a small voltage and electric current when sensing NFC mobile phone, the voltage and current of this generation supports the work of described passive encryption IC4 and CPU1, simultaneously described NFC antenna 5 receives NFC mobile phone (this NFC mobile phone is provided with APP, operationally, the APP of installation can be utilized to send identifying code to passive encryption IC4) identifying code that sends, and this identifying code is sent to described passive encryption IC4 and carries out contrast verification, if identifying code is correct, then described passive encryption IC4 sends instruction and controls described flash storage 6 to described CPU1, this CPU1 and unlock; If identifying code mistake, then cannot unlock.
Between described CPU1 with described flash storage 6, between described USB interface 3 with described CPU1, between described USB interface 3 with described flash storage 6, the described passive IC4 of encryption with between described CPU1 and described NFC antenna 5 be all connected by bus 10 with described passive encryption between IC4.Described bus 10 can be RS232 communication certification bus or other self-defined bus.
Described CPU1, flash storage 6, passive encryption IC4 and bus 10 are all integrated on described mainboard 2; Described NFC antenna 5 is arranged in described antenna plate 9, and the spacing d >=2mm between described antenna plate 9 and described mainboard 2.
As shown in Figure 2, described hummer 7 is all arranged on described mainboard 2 with battery 8, and described LED is arranged in described antenna plate 9, and described hummer 7 and LED are all connected with described battery 8.Described battery 8 can be LIR1220 battery.Wherein, described LED is used to indicate the duty of encrypted U disk 100; Described hummer 7 can send different sound according to presetting, and is in encrypted state or decrypted state for user's authenticated encryption USB flash disk 100; Described battery 8 for off line unlock or when shutting for hummer 7 and LED, and encrypted U disk 100 insert use time, battery 8 understand automatic charging.
The present invention operationally, specifically comprises the steps:
Step 10, using NFC mobile phone as the NFC antenna 5 of Reader near encrypted U disk 100, just can produce a small voltage (about 2.5V) and electric current when NFC antenna 5 senses NFC mobile phone, the voltage and current of this generation can support the work of passive encryption IC4 and CPU1.
Step 20, send identifying code by NFC mobile phone to passive encryption IC4, passive encryption IC4 is after contrast verification code, if identifying code is correct, CPU1 just controls flash storage 6 and unlocks; If identifying code is incorrect, then described flash storage 6 is not unlocked.
In addition, no matter above step can perform at off-line or online (namely whether encrypted U disk 100 has insertion to use), and after being detached by the encrypted U disk used 100, encrypted U disk 100 will shut immediately, this can be used for licensing the single of other users.Be exactly that this encrypted U disk 100 can support all types of conventional USB flash drive in addition, only need to add in conventional USB flash drive the encryption that NFC encryption section can realize conventional USB flash drive.
In sum, tool of the present invention has the following advantages: 1, utilize NFC mobile phone to send identifying code to encrypted U disk and unlock to the deciphering realizing encrypted U disk and lock, pull up after using and can automatically shut, this is not only conducive to licensing other user's singles, and can the safety of effective guarantee data.2, no matter encrypted U disk is in electricity or without under the state of electricity, namely no matter whether encrypted U disk is inserted use and all can perform unlocking motion, and user can carry out authenticated encryption USB flash disk by the sound of hummer is be in released state or be in pass lock status, very convenient when therefore using.3, this encrypted U disk is in complete zero power consumption state when not using, and only has just to be responded to by the NFC antenna of NFC mobile phone and encrypted U disk in use and carrys out generation current for CPU and passive encryption IC, therefore have energy-saving effect.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.

Claims (4)

1. an encrypted U disk, comprise a CPU, a USB interface and a flash storage, described CPU is connected with described flash storage, described USB interface is connected to described CPU and flash storage respectively, it is characterized in that: the NFC antenna also comprising a passive encryption IC and one and NFC mobile phone wireless connections, described passive encryption IC is connected with described CPU, and described NFC antenna is connected with the described passive IC that encrypts;
Described NFC antenna produces a small voltage and electric current when sensing NFC mobile phone, the voltage and current of this generation supports the work of described passive encryption IC and CPU, described NFC antenna receives the identifying code that NFC mobile phone sends simultaneously, and this identifying code is sent to described passive encryption IC and carries out contrast verification, if identifying code is correct, then described passive encryption IC transmission instruction controls the unblock of described flash storage to described CPU, this CPU and locks; If identifying code is incorrect, then cannot unlock.
2. a kind of encrypted U disk as claimed in claim 1, is characterized in that: between described CPU with described flash storage, between described USB interface with described CPU, between described USB interface with described flash storage, the described passive IC of encryption with between described CPU and described NFC antenna be all connected by bus with described passive encryption between IC.
3. a kind of encrypted U disk as claimed in claim 1 or 2, is characterized in that: also comprise a mainboard and an antenna plate, and described CPU, flash storage, passive encryption IC and bus are all integrated on described mainboard; Described NFC antenna is arranged in described antenna plate, and the spacing d >=2mm between described antenna plate and described mainboard.
4. a kind of encrypted U disk as claimed in claim 3, it is characterized in that: also comprise a hummer, a LED and a battery, described hummer and battery are all arranged on described mainboard, and described LED is arranged on described antenna plate, and described hummer and LED are all connected with described battery.
CN201410845858.8A 2014-12-31 2014-12-31 Encrypted USB flash disk Pending CN104766620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410845858.8A CN104766620A (en) 2014-12-31 2014-12-31 Encrypted USB flash disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410845858.8A CN104766620A (en) 2014-12-31 2014-12-31 Encrypted USB flash disk

Publications (1)

Publication Number Publication Date
CN104766620A true CN104766620A (en) 2015-07-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106101188A (en) * 2016-05-30 2016-11-09 宁德市众威网络科技有限公司 A kind of data processing method of network cloud USB flash disk
CN106506492A (en) * 2016-10-28 2017-03-15 郑建钦 A kind of safe movable data storage system
CN108710805A (en) * 2018-05-25 2018-10-26 四川斐讯信息技术有限公司 Encryption method, decryption method and the storage device of storage device
WO2020073916A1 (en) * 2018-10-09 2020-04-16 中兴通讯股份有限公司 Encryption method and apparatus for storage device, and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100031349A1 (en) * 2008-07-29 2010-02-04 White Electronic Designs Corporation Method and Apparatus for Secure Data Storage System
CN201417464Y (en) * 2009-05-12 2010-03-03 深圳市江波龙电子有限公司 SD card
CN202841180U (en) * 2012-08-13 2013-03-27 泰克威科技(深圳)有限公司 Data exchange storage device based on WiFi and NFC technology
CN103678982A (en) * 2013-12-17 2014-03-26 无锡方圆环球显示技术股份有限公司 Method for using fingerprints and wireless technique to achieve encryption and decryption and device of method
CN203849998U (en) * 2014-03-05 2014-09-24 苏州智信通电子科技有限公司 U disc with safety and secrecy functions
CN204423918U (en) * 2014-12-31 2015-06-24 东莞市猫头鹰锁业有限公司 A kind of encrypted U disk

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100031349A1 (en) * 2008-07-29 2010-02-04 White Electronic Designs Corporation Method and Apparatus for Secure Data Storage System
CN201417464Y (en) * 2009-05-12 2010-03-03 深圳市江波龙电子有限公司 SD card
CN202841180U (en) * 2012-08-13 2013-03-27 泰克威科技(深圳)有限公司 Data exchange storage device based on WiFi and NFC technology
CN103678982A (en) * 2013-12-17 2014-03-26 无锡方圆环球显示技术股份有限公司 Method for using fingerprints and wireless technique to achieve encryption and decryption and device of method
CN203849998U (en) * 2014-03-05 2014-09-24 苏州智信通电子科技有限公司 U disc with safety and secrecy functions
CN204423918U (en) * 2014-12-31 2015-06-24 东莞市猫头鹰锁业有限公司 A kind of encrypted U disk

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106101188A (en) * 2016-05-30 2016-11-09 宁德市众威网络科技有限公司 A kind of data processing method of network cloud USB flash disk
CN106506492A (en) * 2016-10-28 2017-03-15 郑建钦 A kind of safe movable data storage system
CN108710805A (en) * 2018-05-25 2018-10-26 四川斐讯信息技术有限公司 Encryption method, decryption method and the storage device of storage device
WO2020073916A1 (en) * 2018-10-09 2020-04-16 中兴通讯股份有限公司 Encryption method and apparatus for storage device, and storage medium
CN111027077A (en) * 2018-10-09 2020-04-17 中兴通讯股份有限公司 Encryption method and device of storage equipment and storage medium
CN111027077B (en) * 2018-10-09 2023-09-05 中兴通讯股份有限公司 Encryption method and device for storage equipment and storage medium

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Address after: 523000 Guangdong Province, Dongguan City Village Industrial Zone Dalingshan Town pond lotus peak new road No. 86 two floor

Applicant after: Dongguan owl Intelligent Technology Co., Ltd.

Applicant after: Chen Maorong

Applicant after: Liu Youxiong

Address before: 523000 Guangdong Province, Dongguan City Village Industrial Zone Dalingshan Town pond lotus peak new road No. 86 two floor

Applicant before: Dongguan City cat owl Suo Ye company limited

Applicant before: Chen Maorong

Applicant before: Liu Youxiong

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150708