CN104217180B - A kind of encryption storage dish - Google Patents
A kind of encryption storage dish Download PDFInfo
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- CN104217180B CN104217180B CN201410452377.0A CN201410452377A CN104217180B CN 104217180 B CN104217180 B CN 104217180B CN 201410452377 A CN201410452377 A CN 201410452377A CN 104217180 B CN104217180 B CN 104217180B
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- 238000004891 communication Methods 0.000 claims abstract description 38
- 239000000872 buffer Substances 0.000 claims description 60
- 230000006870 function Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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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
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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
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The present invention proposes a kind of encryption storage dish, and the encryption storage dish has data encryption and decryption function, contains communication interface connector, bridges control circuit, common hard disc, encrypting and decrypting circuit.When main frame is to encrypting storage dish storage data, bridge joint control circuit sends the data to encrypting and decrypting circuit and is encrypted, and bridge joint control circuit is stored in encryption data evidence in common hard disc again, so as to realize the function of data encryption；When main frame reads data to encrypting storage dish, bridge joint control circuit reads data from common hard disc, and sends encrypting and decrypting circuit to and be decrypted, bridge control circuit again decryption after data be uploaded to main frame, so as to realize the function of data deciphering.The encryption storage dish that is realized using technical scheme, can be configured flexibly various AESs and communication interface, meet the market demand in different levels, country variant and area.
Description
Technical Field
The invention relates to the field of computer data storage and data security, in particular to an encrypted storage disk with a data encryption and decryption function.
Background
Conventionally, data security of computer storage devices (storage disks) has been concerned, and various storage disks having an encryption function, such as an encrypted memory card, an encrypted usb disk, and an encrypted hard disk, are continuously introduced in the market.
The architecture of a general storage disk is composed of a communication interface, a disk controller chip (or a bridge control chip), a storage medium and the like. The design scheme of a typical encryption storage disk is that an encryption algorithm module is built in a disk controller chip, namely, a single chip is adopted to realize the functions of storing, encrypting and decrypting data. The single chip solution described above has the following problems and drawbacks: the method is difficult to be compatible with various encryption algorithms, particularly new encryption algorithms, so that the requirements of the encryption algorithms of customers of various levels, different countries or regions are difficult to meet; in addition, the interface communication mode of the disk controller chip and the computer is single, the flexibility is poor, the storage disks with different interface types are difficult to realize, and a new generation communication interface with higher transmission rate is difficult to adopt.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an encrypted storage disk which has the function of encrypting and decrypting data stored in a common hard disk and can meet the requirements of different encryption algorithms at various levels.
In order to solve the problems in the prior art, the technical scheme of the invention is as follows:
an encrypted memory disk has data encryption and decryption functions and comprises a communication interface connector, a bridging control circuit, a common hard disk and an encryption and decryption circuit; wherein,
the encryption and decryption circuit is used for encrypting or decrypting data;
the communication interface connector is connected with the host and the bridge control circuit;
the bridge control circuit is connected with the common hard disk and the encryption and decryption circuit and is used for controlling the communication interface connector, the encryption and decryption circuit and the common hard disk to transmit and process data.
Preferably, when data is stored in the encrypted storage disk, under the control of the bridge control circuit, the data is encrypted by the encryption and decryption circuit and then stored in the ordinary hard disk;
when data is read from the encrypted storage disk, under the control of the bridge control circuit, the data in the ordinary hard disk is read first, and then the data is decrypted by the encryption and decryption circuit and then sent to the host.
Preferably, the communication interface connector adopts any one of the following connectors: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC.
Preferably, the bridge control circuit includes a processor, a first interface circuit, a main buffer memory, a first buffer memory, a second interface circuit, and a third interface circuit.
Preferably, the bridge control circuit is a single-chip integrated circuit.
Preferably, the encryption and decryption circuit comprises a processor, an interface circuit, a first buffer memory, a second buffer memory and an encryption and decryption algorithm module;
the encryption and decryption algorithm module is used for executing encryption or decryption operation;
the interface circuit is used for receiving commands and data from the bridge control circuit and storing the data in a first buffer memory;
the first buffer memory and the second buffer memory are used for data caching, wherein the first buffer memory sends data to the encryption and decryption circuit; the second buffer memory is used for buffering the data encrypted or decrypted by the encryption and decryption circuit and returning the data to the bridge control circuit through the interface circuit.
Preferably, the encryption and decryption circuit is a single-chip integrated circuit.
Preferably, the encryption or decryption algorithm of the encryption and decryption circuit adopts any one of the following algorithms: polynomial scrambling code, AES, DES, RSA, ECC, SHA, GOST, or the algorithm established by the commercial cipher bureau of China.
Preferably, the common hard disk is a solid state disk or an HDD hard disk.
Preferably, said interface circuit is adapted to said communication interface connector;
the second interface circuit is adapted to the interface of the common hard disk;
the third interface circuit is adapted to the interface of the encryption and decryption circuit;
the first interface circuit, the second interface circuit and the third interface circuit adopt any one of the following standard interfaces: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC.
Compared with the prior art, the technical scheme of the invention adopts a single encryption algorithm chip to encrypt and decrypt data in the aspect of data encryption, can configure various algorithms, has lower upgrading cost due to the updating of the algorithms, and does not influence the whole technical scheme framework of the encryption storage disk; in addition, in the aspect of communication interfaces and bridging of the computer host, because the computer host is not limited by an encryption function, the bridging control circuit can be selected according to market requirements, and the communication interfaces and the communication rates of various specifications can be flexibly realized. In a word, by adopting the technical scheme of the invention, various encryption algorithms and communication interfaces can be flexibly configured, and the market demands of the encryption storage disks of different levels, different countries and regions are met.
Drawings
FIG. 1 illustrates a system architecture diagram for encrypting a storage disk in accordance with the present invention;
FIG. 2 shows an internal functional block diagram of the bridge control circuit of FIG. 1;
FIG. 3 is an internal schematic block diagram of the encryption/decryption circuit of FIG. 1;
FIG. 4 shows an application example of the encrypted storage disk as the encrypted mobile storage hard disk of the USB interface according to the present invention;
fig. 5 shows another application example of the encrypted storage disk according to the present invention as an encrypted solid-state hard disk of the SAS interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Fig. 1 shows a system architecture diagram of an embodiment of an encrypted storage disk according to the present invention, in this example, an encrypted storage disk (2) includes a communication interface connector (21), a bridge control circuit (22), a normal hard disk (23), and an encryption/decryption circuit (24).
The encryption and decryption circuit (24) is used for carrying out encryption or decryption processing on data;
the communication interface connector (21) is connected with the host (1) and the bridge control circuit (22);
the bridge control circuit (22) is connected with the common hard disk (23) and the encryption and decryption circuit (24) and is used for controlling the communication interface connector (21), the encryption and decryption circuit (24) and the common hard disk (23) to carry out data transmission and processing; the computer host, the encryption and decryption circuit and the common hard disk are responsible for communication and data transmission with the computer host.
The data transmission process is as follows:
when data is stored in the encryption storage disk, under the control of the bridge control circuit (22), the data is encrypted by the encryption and decryption circuit (24) and then stored in the common hard disk (23);
when data is read from the encrypted storage disk, under the control of the bridge control circuit (22), the data in the ordinary hard disk (23) is read first, and then the data is decrypted by the encryption and decryption circuit (24) and then sent to the host (1).
The communication interface connector (21) may be a connector, employing any of the following connectors: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD or MMC.
The normal hard disk (23) stores encrypted data, and can be a hard disk of a nonvolatile storage medium or a hard disk of a magnetic disk storage medium.
The encryption and decryption circuit is a single-chip integrated circuit, is internally provided with an encryption and decryption algorithm module, and can adopt one of the following methods: polynomial scrambling code, AES, DES, RSA, ECC, SHA, GOST, or the algorithm established by the commercial cipher bureau of China.
Fig. 2 shows an internal schematic block diagram of the bridge control circuit in the embodiment shown in fig. 1, and the bridge control circuit (22) may be integrated by a separate circuit system or may be a single-chip integrated circuit. The system comprises a processor (2200), a first interface circuit (2201), a main buffer memory (2202), a first buffer memory (2203), a second buffer memory (2204), a second interface circuit (2205) and a third interface circuit (2206).
The first interface circuit (2201) is connected with an external communication interface connector (21), and can adopt one interface defined as follows: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC; the second interface circuit (2204) is connected with an external common hard disk (23), and can adopt one of the following defined interfaces: USB, SCSI, IDE, SATA, PCI-E, SAS; the third interface circuit (2206) is connected with an external encryption and decryption circuit (24), and can adopt one of the following interfaces: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC; the processor (2200) is responsible for communication and data transmission with the computer host (1), the encryption and decryption circuit (24) and the common hard disk (23), and also controls the operation of each interface circuit and each cache memory area; the main buffer memory (2202) is used for buffering data communicated with the host; the first buffer memory (2203) is used for buffering data communicated with the common hard disk; and the second cache memory (2204) caches data communicated with the encryption and decryption circuit.
Fig. 3 shows an internal schematic block diagram of the encryption and decryption circuit in the embodiment shown in fig. 1, and the encryption and decryption circuit (24) may be integrated by a separate circuit system, or may be a single-chip integrated circuit, and includes a processor (2400), an interface circuit (2401), a first buffer memory (2403), a second buffer memory (2404), and an encryption and decryption algorithm module (2402).
The processor (2400) is responsible for command communication and data transceiving with the bridge control circuit (22), and is responsible for controlling the interface circuit (2401), the first buffer memory (2403), the second buffer memory (2404) and the encryption and decryption algorithm module (2402); the first buffer memory (2403) buffers data from the interface circuit (2401), and sends the data to the encryption and decryption algorithm module (2402) for encryption and decryption under the control of the processor (2400); the second buffer memory (2404) buffers data from the encryption and decryption algorithm module (2402), and sends the data to the bridge control circuit (22) through the interface circuit (2401) under the control of the processor (2400); the interface circuit (2401) may adopt one of the following interfaces: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD or MMC, and matched with interface circuit three (2206) of the bridge control circuit (22); the interface circuit (2401) receives commands and data from the bridge control circuit (22) and stores the data in a first buffer memory (2403); the encryption and decryption algorithm module (2402) reads data of the first buffer memory (2403) under the scheduling and control of the processor (2400), performs encryption operation, transmits the encrypted data back to the second buffer memory (2404), and finally returns the encrypted data to the bridge control circuit (22) through the interface circuit (2401). The encryption and decryption operations of the data built in the encryption and decryption algorithm module (2402) can adopt one of the following algorithms: polynomial scrambling code, AES, DES, RSA, ECC, SHA, GOST, or the algorithm established by the commercial cipher bureau of China.
When the host (1) stores data in the encrypted storage disk (2), the bridge control circuit (22) receives the original data from the host (1) and sends the original data to the encryption and decryption circuit (24) for encryption; the encryption and decryption circuit (24) performs encryption operation on the data and then returns the encrypted data to the bridge control circuit (22); the bridge control circuit (22) stores the encrypted data in a common hard disk (23) so as to realize the function of data encryption;
when a host (1) reads data from an encrypted storage disk (2), a bridge control circuit (22) reads the data (encrypted) from a common hard disk (23) according to a read command of the host (1) and transmits the data to an encryption and decryption circuit (24) for decryption; the encryption and decryption circuit (24) carries out decryption operation on the data and then returns the decrypted data to the bridge control circuit (22); the bridge control circuit (22) uploads the decrypted data to the host (1), so that the data decryption function is realized.
Referring to fig. 1, fig. 2 and fig. 3, the encryption/decryption read/write flow and mechanism of an embodiment of an encrypted storage disk according to the present invention are described as follows:
1. and (3) encryption writing flow:
1) the host (1) sends a write command and transmits plaintext data to be written to the encrypted storage disk (2) through the communication interface connector (21);
2) the first interface circuit (2201) buffers the received plaintext data in a main buffer memory (2202);
3) the processor (2200) sends an encryption command to the encryption and decryption circuit (24) and stores data to be encrypted from the main buffer memory (220) to a second buffer memory (2204);
4) the third interface circuit (2206) sends the data of the second buffer storage area (2204) to the encryption and decryption circuit (24);
5) an interface circuit (2401) of the encryption/decryption circuit (24) stores the received data in a first buffer memory (2403);
6) the processor (2400) sends a command of an encryption operation to the encryption and decryption algorithm module (2402);
7) the encryption and decryption algorithm module (2402) reads the data of the first buffer memory (2403) and carries out encryption operation;
8) the encryption and decryption algorithm module (2402) stores the encrypted data into a second buffer memory (2404)
9) The interface circuit (2401) sends the encrypted data of the second buffer memory (2404) to the bridge control circuit (22) under the control of the processor (2400);
10) the third interface circuit (2206) of the bridge control circuit (22) stores the received encrypted data into the second buffer memory (2204);
11) the processor (2200) transfers the encrypted data of the second buffer memory (2204) into the first buffer memory (2203);
12) and the second interface circuit (2205) writes the encrypted data of the first buffer memory (2203) into the common hard disk (23) under the control of the processor (2200), thereby completing the encryption writing operation of the data and realizing the encryption function of the data of the storage disk.
2. Decryption reading flow:
1) the host (1) sends a data reading command to the encrypted storage disk (2);
2) the bridge control circuit (22) reads data on the common hard disk (23) according to a reading command of a host;
3) the second interface circuit (2205) stores the received data into the first buffer memory (2203);
4) the processor (2200) transfers the encrypted data of the first buffer memory (2203) into a second buffer memory (2204);
5) the processor (2400) issues a command for a decryption operation to the encryption/decryption circuit (24);
6) the third interface circuit (2206) sends the data of the second buffer storage area (2204) to the encryption and decryption circuit (24);
7) an interface circuit (2401) of the encryption/decryption circuit (24) stores the received data in a first buffer memory (2403);
8) the encryption and decryption algorithm module (2402) reads the data of the buffer memory I (2403) and carries out decryption operation;
9) the encryption and decryption algorithm module (2402) stores the decrypted data into a second buffer memory (2404)
10) The interface circuit (2401) sends the decrypted data of the second buffer memory (2404) to the bridge control circuit (22) under the control of the processor (2400);
11) the third interface circuit (2206) of the bridge control circuit (22) stores the received decrypted data into the second buffer memory (2204);
12) the processor (2200) transfers the decrypted data of the second buffer memory (2204) into the main buffer memory (2202);
13) the first interface circuit (2201) transmits the decrypted data of the main buffer memory (2202) to the host (1) through the communication interface connector (21) under the control of the processor (2200), thereby completing the decryption reading operation of the data and realizing the decryption function of the data of the storage disk.
Fig. 4 shows an application example of the encrypted storage disk according to the present invention as an encrypted removable storage hard disk of a USB interface. The encrypted storage disk (2) is an encrypted mobile hard disk, wherein the communication interface connector (21) adopts a USB connector; the bridging control circuit (22) adopts a USB-SATA bridging chip; the encryption and decryption circuit (24) adopts an encryption chip; the hard disk interface of the common hard disk (23) is a SATA interface.
The encryption and decryption circuit (24) adopts an encryption chip with an AES algorithm, and the internal hard disk adopts a SATA interface hard disk (23).
The USB connector (21) is used for connecting a computer host; the USB-SATA bridging chip (22) adopts a USB communication protocol to communicate with a computer host, adopts the SATA communication protocol to read and write with an internal SATA interface solid state disk (23), and also adopts the SATA communication protocol and an encryption chip (24) to communicate and transmit data; an AES algorithm is arranged in the encryption chip (24) and can be used for encrypting and decrypting data; the SATA interface hard disk (23) is a common hard disk which adopts a magnetic disk as a storage medium and is used for storing encrypted data.
The encryption/decryption read/write mechanism and the process of the embodiment of the invention shown in fig. 4 can refer to the description of the embodiment shown in fig. 1, and are not repeated herein.
Fig. 5 shows another application example of the encrypted storage disk as an encrypted solid-state hard disk of the SAS interface according to the present invention. The encryption storage disk (2) is an encryption solid state disk with an SAS interface, wherein the communication interface connector (21) adopts an SAS connector (21); the bridging control circuit (22) adopts an SAS-SATA bridging chip; the encryption and decryption circuit (24) adopts an encryption chip; the hard disk interface of the common hard disk (23) is a SATA interface.
The encryption and decryption circuit adopts an encryption chip (24) with an AES algorithm, and the internal hard disk adopts a SATA interface solid state disk (23).
The SAS connector (21) is a standard SAS interface socket and can be connected with an SAS communication interface of a host;
the SAS-SATA bridging chip (22) adopts an SAS communication protocol to communicate with a computer host, adopts the SATA communication protocol to read and write a SATA interface solid state disk (23), and also adopts a PCI-E communication protocol and an encryption chip (24) to communicate and transmit data;
an AES algorithm is arranged in the encryption chip (24) and can be used for encrypting and decrypting data;
the SATA interface solid state disk (23) adopts a Flash memory (NAND Flash) as a storage medium to store encrypted data.
The encryption/decryption read/write mechanism and the process of the embodiment of the invention shown in fig. 5 can refer to the description of the embodiment shown in fig. 1, and are not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. An encrypted storage disk, characterized in that, the encrypted storage disk has data encryption and decryption functions, and comprises a communication interface connector (21), a bridge control circuit (22), a common hard disk (23) and an encryption and decryption circuit (24); wherein,
the encryption and decryption circuit (24) is used for encrypting or decrypting data;
the communication interface connector (21) is connected with the host (1) and the bridge control circuit (22);
the bridge control circuit (22) is connected with the common hard disk (23) and the encryption and decryption circuit (24) and is used for controlling the communication interface connector (21), the encryption and decryption circuit (24) and the common hard disk (23) to carry out data transmission and processing,
the bridge control circuit (22) comprises a processor (2200), a first interface circuit (2201), a main buffer memory (2202), a first buffer memory (2203), a second buffer memory (2204), a second interface circuit (2205) and a third interface circuit (2206),
the bridge control circuit (22) is a single-chip integrated circuit,
the encryption and decryption circuit (24) is a single-chip integrated circuit,
the first interface circuit (2201) is adapted to the communication interface connector (21);
the second interface circuit (2205) is adapted to the interface of the common hard disk (23);
the third interface circuit (2206) is adaptive to the interface of the encryption and decryption circuit (24);
the first interface circuit (2201), the second interface circuit (2205) and the third interface circuit (2206) adopt any one of the following standard interfaces: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC.
2. An encrypted storage disk according to claim 1,
when data is stored in the encryption storage disk, under the control of the bridge control circuit (22), the data is encrypted by the encryption and decryption circuit (24) and then stored in the common hard disk (23);
when data is read from the encrypted storage disk, under the control of the bridge control circuit (22), the data in the ordinary hard disk (23) is read first, and then the data is decrypted by the encryption and decryption circuit (24) and then sent to the host (1).
3. An encrypted storage disk according to claim 1 or 2, wherein said communication interface connector (21) is any one of the following connectors: USB, SCSI, IDE, SATA, PCI-E, SAS, RS232, UART, SD, or MMC.
4. A storage disk according to claim 1 or 2, wherein the encryption/decryption circuit (24) comprises a processor (2400), an interface circuit (2401), a first buffer memory (2403), a second buffer memory (2404) and an encryption/decryption algorithm module (2402);
the encryption and decryption algorithm module (2402) is used for executing encryption or decryption operation;
the interface circuit (2401) is used for receiving commands and data from the bridge control circuit (22) and storing the data in a first buffer memory (2403);
the first buffer memory (2403) and the second buffer memory (2404) are used for data caching, wherein the first buffer memory (2403) sends data to the encryption and decryption algorithm module (2402); the second buffer memory (2404) is used for buffering data encrypted or decrypted by the encryption and decryption algorithm module (2402), and returning the data to the bridge control circuit (22) through the interface circuit (2401).
5. An encrypted memory disc according to claim 4, wherein the encryption or decryption algorithm of the encryption/decryption circuit (24) is any one of the following algorithms: polynomial scrambling code, AES, DES, RSA, ECC, SHA, GOST, or the algorithm established by the commercial cipher bureau of China.
6. An encrypted memory disc according to claim 1 or 2, wherein the ordinary hard disc (23) is a solid state hard disc or an HDD hard disc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410452377.0A CN104217180B (en) | 2014-09-07 | 2014-09-07 | A kind of encryption storage dish |
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| CN201410452377.0A CN104217180B (en) | 2014-09-07 | 2014-09-07 | A kind of encryption storage dish |
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| CN104217180A CN104217180A (en) | 2014-12-17 |
| CN104217180B true CN104217180B (en) | 2017-03-15 |
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| CN104580181A (en) * | 2014-12-29 | 2015-04-29 | 华为技术有限公司 | Device and method for data encryption and encryption accelerator engine |
| CN104866784B (en) * | 2015-06-03 | 2018-03-23 | 杭州华澜微电子股份有限公司 | A kind of safe hard disk, data encryption and decryption method based on BIOS encryptions |
| CN105468983B (en) * | 2015-11-17 | 2020-01-03 | 北京华大智宝电子***有限公司 | Data transmission method and device based on SATA interface |
| CN105740733B (en) * | 2016-01-28 | 2019-01-08 | 山东超越数控电子有限公司 | A kind of encryption mobile hard disk and its implementation |
| CN106649156B (en) * | 2016-12-07 | 2019-09-17 | 英业达科技有限公司 | Server |
| CN106845254A (en) * | 2017-01-20 | 2017-06-13 | 杭州华澜微电子股份有限公司 | A kind of encrypted data transmission line for computer |
| CN106970889B (en) * | 2017-05-10 | 2023-12-12 | 鸿秦（北京）科技有限公司 | SATA bridge chip and working method thereof |
| CN113449317A (en) * | 2020-03-27 | 2021-09-28 | 华为技术有限公司 | Method for encrypting data and control equipment |
| CN112152802B (en) * | 2020-09-09 | 2023-06-20 | 深圳市欢太科技有限公司 | Data encryption method, electronic device and computer storage medium |
| CN112364323A (en) * | 2020-11-16 | 2021-02-12 | 深圳安捷丽新技术有限公司 | High-security storage access method and device based on user iris recognition |
| CN112685352B (en) * | 2020-12-31 | 2022-06-24 | 深圳安捷丽新技术有限公司 | Bridging chip for PCIE-SATA protocol and operation method thereof |
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| CN104217180A (en) | 2014-12-17 |
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