CN110765498A - Encryption computer - Google Patents
Encryption computer Download PDFInfo
- Publication number
- CN110765498A CN110765498A CN201810850447.6A CN201810850447A CN110765498A CN 110765498 A CN110765498 A CN 110765498A CN 201810850447 A CN201810850447 A CN 201810850447A CN 110765498 A CN110765498 A CN 110765498A
- Authority
- CN
- China
- Prior art keywords
- encryption
- data
- decryption
- storage
- unit
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- G06F21/79—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 semiconductor storage media, e.g. directly-addressable memories
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses an encryption computer, which comprises a host and an encryption solid state disk arranged in the host, wherein the host at least comprises a CPU and a mainboard; the encryption solid state disk at least comprises a hard disk interface, an SSD controller, a random number generator, an algorithm storage unit, a data encryption and decryption unit and a storage module, wherein the storage module comprises a data storage area and an encryption card storage area, and the data storage area is used for normal data storage of the solid state disk; the encryption card storage area is further provided with an encryption storage unit and a decryption storage unit, and the encryption storage unit and the decryption storage unit are respectively provided with a plurality of storage units which are respectively used for storing data after encryption operation or decryption operation. By adopting the technical scheme of the invention, an encryption card storage area is opened up in a storage module of the encryption solid state disk, the encryption and decryption functions of an external common storage disk accessed into a computer are realized by adopting a standard storage interface and a standard protocol, and the external encryption and decryption operation functions are completely encapsulated in the storage protocol.
Description
Technical Field
The invention relates to the technical field of data security, in particular to an encryption computer.
Background
Data security of computers has been concerned, and encryption computers, which use a storage disk with an encryption function, such as an encryption solid state disk, are also continuously introduced in the market. However, the encryption computer in the prior art only encrypts and decrypts data in the encrypted solid state disk, and cannot provide encryption storage or data decryption functions for other portable common storage devices connected to the computer, so that it is very inconvenient to use the common storage devices in the encryption computer.
Therefore, it is necessary to provide a technical solution to solve the technical problems of the prior art.
Disclosure of Invention
In view of the above, it is necessary to provide an encryption computer, which creates an encryption card storage area in a storage module of an encryption solid state disk therein, and implements an encryption and decryption function of an external common storage device accessing the computer by using a standard storage interface and protocol, and at the same time, fully encapsulates the encryption and decryption function of the external common storage device in the storage protocol, and implements allocation and acquisition of encryption and decryption tasks by storing instructions, thereby meeting the requirement of a user for mixed use of an encrypted storage disk and a non-encrypted storage disk.
In order to overcome the defects of the prior art, the technical scheme of the invention is as follows:
an encrypted solid state disk comprises a host and an encrypted solid state disk arranged in the host, wherein the host at least comprises a CPU and a mainboard;
the encryption solid state disk at least comprises a hard disk interface, an SSD controller, a random number generator, an algorithm storage unit, a data encryption and decryption unit and a storage module, wherein the hard disk interface adopts any one of a PCI interface, an SAS interface or an SATA interface and is used for being connected with a host;
the random number generator is used for generating a random number under the control of the SSD controller to serve as a key for data encryption and decryption;
the algorithm storage unit is connected with the SSD controller and the data encryption and decryption unit and is used for storing the algorithm of data encryption and decryption;
the data encryption and decryption unit at least comprises an encryption processing unit, a decryption processing unit and a key storage unit, and the encryption processing unit is used for executing data encryption operation; the decryption processing unit is used for executing data decryption operation; the key storage unit is used for storing a key;
the storage module comprises a data storage area and an encryption card storage area, and the data storage area is used for storing normal data of the solid state disk;
the encryption card storage area is further provided with an encryption storage unit and a decryption storage unit, and the encryption storage unit and the decryption storage unit are respectively provided with a plurality of storage units which are respectively used for storing data after encryption operation or decryption operation is executed;
the SSD controller is connected with the data encryption and decryption unit and the hard disk interface and is used for acquiring and analyzing the command sent by the host and then executing corresponding processing;
when the obtained command is a write command and the write address is a data storage area, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is stored in the data storage area after being encrypted by the encryption processing unit;
when the obtained command is a write command and the write address is an encryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being encrypted by the encryption processing unit; when the obtained command is a write command and the write address is a decryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being decrypted by the decryption processing unit; meanwhile, the SSD controller feeds back a task completion message to the host, wherein the feedback task completion message at least comprises address information of a storage unit corresponding to the task;
when the acquired instruction is a read instruction and the address is a data storage area, the SSD controller reads data information corresponding to the address and sends the data information to the data encryption and decryption unit, and the data information is decrypted by the decryption processing unit and then sent to the host;
and when the acquired instruction is a read instruction and the address is the encrypted card storage area, the SSD controller directly reads the data information of the storage unit corresponding to the address and sends the data information to the host.
As a preferred technical solution, the algorithm storage unit stores a plurality of data encryption and decryption algorithms, and the data encryption and decryption unit selects a corresponding encryption algorithm according to a control instruction of the SSD controller.
Preferably, the algorithm for encrypting and decrypting the data in the algorithm storage unit is at least any one of AES-128/256, SM2, SM3, SM4, RSA, 3DES or SHA.
As a preferred technical solution, the system further comprises a data buffer, and the data buffer is connected with the SSD controller, the hard disk interface, the data encryption and decryption unit, and the storage module, and is configured to cache data.
As a preferred technical scheme, the encryption card storage area adopts a plurality of eMMC chips, and the plurality of eMMC chips are cascaded through a bus.
As a preferred technical scheme, when the SSD controller executes a write operation and an address is an encryption card storage area, selecting an idle storage unit and sending address information thereof and a task to be processed to the data encryption/decryption unit; and the data encryption and decryption unit directly stores the processed tasks into the storage unit after executing encryption and decryption operations.
As a preferred technical solution, the SSD controller sets a data storage mapping table, where the data storage mapping table is used to record stored information, an algorithm used by the stored information, and an address corresponding to the algorithm.
As a preferred technical solution, the SSD controller sets an encryption card memory mapping table, where the encryption card memory mapping table is used to record addresses of each task and its corresponding memory unit.
As a preferred technical solution, the encryption card memory mapping table further sets a memory flag bit, where the memory flag bit is used to identify a read-write state of data in a memory unit, and the data in the memory unit is read out and then the memory space is released for subsequent write-in operation.
As a preferred technical solution, the solid state disk is provided with a plurality of data encryption and decryption units, and each data encryption and decryption unit has an ID of a unique identifier.
Compared with the prior art, the encryption card storage area is opened up in the storage module of the encryption solid state disk, the standard storage interface and the protocol are adopted to realize the encryption and decryption functions of the external common storage disk accessed into the computer, meanwhile, the external encryption and decryption operation functions are completely encapsulated in the storage protocol, the encryption and decryption tasks are distributed and obtained through the storage instruction, and the requirement that users use the encryption storage disk and the non-encryption storage disk in a mixed mode in practice is greatly met.
Drawings
FIG. 1 is a schematic block diagram of an encryption computer of the present invention.
Fig. 2 is a schematic block diagram of an encrypted solid-state disk according to the present invention.
FIG. 3 is a schematic diagram of an encrypted card storage area in the present invention.
Fig. 4 is a schematic block diagram of a solid state disk according to another embodiment of the present invention.
FIG. 5 is a block diagram of a method for encrypting and decrypting data in a computer according to the present invention.
Flow diagram of a data processing method.
The following specific embodiments will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solution provided by the present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, a schematic block diagram of an encryption computer according to the present invention is shown, which includes a host and an encryption solid state disk disposed in the host, where the host includes at least a CPU and a motherboard.
Referring to fig. 2, a schematic block diagram of an encrypted solid state disk according to the present invention is shown, where the encrypted solid state disk is embedded in a host and at least includes a hard disk interface, an SSD controller, a random number generator, an algorithm storage unit, a data encryption/decryption unit, and a storage module, where the hard disk interface is connected to the host through any one of a PCI interface, an SAS interface, or an SATA interface.
The random number generator is used for generating a random number under the control of the SSD controller as a key for data encryption and decryption operation;
the data encryption and decryption unit at least comprises an encryption processing unit, a decryption processing unit and a key storage unit, wherein the encryption processing unit is used for executing data encryption operation; the decryption processing unit is used for executing data decryption operation; the key storage unit is used for storing a key;
the storage module comprises a data storage area and an encryption card storage area, and the data storage area is used for storing normal data of the solid state disk;
referring to fig. 3, which is a schematic diagram illustrating the principle of an encryption card storage area according to the present invention, the encryption card storage area is provided with an encryption storage unit and a decryption storage unit, and the encryption storage unit and the decryption storage unit are both provided with a plurality of storage units for storing data after performing an encryption operation or a decryption operation, respectively;
the SSD controller is connected with the data encryption and decryption unit and the encryption card storage area and is used for acquiring and analyzing the command sent by the host and then executing corresponding processing;
when the obtained command is a write command and the write address is a data storage area, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is stored in the data storage area after being encrypted by the encryption processing unit;
when the obtained command is a write command and the write address is an encryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being encrypted by the encryption processing unit; when the obtained command is a write command and the write address is a decryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being decrypted by the decryption processing unit; meanwhile, the SSD controller feeds back a task completion message to the host, wherein the feedback task completion message at least comprises address information of a storage unit corresponding to the task;
when the acquired instruction is a read instruction and the address is a data storage area, the SSD controller reads data information corresponding to the address and sends the data information to the data encryption and decryption unit, and the data information is decrypted by the decryption processing unit and then sent to the host;
and when the acquired instruction is a read instruction and the address is the encrypted card storage area, the SSD controller directly reads the data information of the storage unit corresponding to the address and sends the data information to the host.
By adopting the technical scheme, the encryption card storage area is arranged in the storage module, the encryption and decryption functions of an external common storage disc are realized by adopting a standard storage interface and a standard protocol, the encryption and decryption functions are packaged in the storage protocol, and the encryption and decryption operations can be realized by adopting a read-write instruction. For a computer, the solid state disk is the same as the common storage hard disk in the prior art. Compared with the prior art, the encryption solid state disk has a normal data storage function and also has a data encryption and decryption function of an external common storage disk accessed to a host. Under the framework of the invention, the data encryption operation is equivalent to writing the data to be encrypted into the storage area of the encryption card, and the host can process other operations after sending a write command without waiting; and after the encryption/decryption operation is completed, the solid state disk sends a notification instruction to inform the host that the encryption operation of the corresponding task is completed, the host acquires data information stored in the corresponding address through a reading instruction, stores the data in an external common storage disk, and completes one external encryption/decryption operation flow.
In the technical scheme, the data storage, the encryption/decryption operation and the address space are bound, the data storage or the external decryption operation can be analyzed by identifying the address space, and meanwhile, the specific encryption/decryption operation type can be obtained by analyzing the address, so that the complexity of the protocol is greatly simplified.
In addition, a plurality of storage units are arranged in the encryption card storage area; each storage unit is used for storing one task, and each data encryption and decryption unit is correspondingly distributed with a plurality of storage units, so that the data encryption and decryption unit can cache a plurality of tasks; meanwhile, the data encryption and decryption unit directly stores the tasks in the corresponding storage units after completing encryption/decryption operation; the SSD controller is connected with the encryption card storage area and can directly read data information in the encryption card storage area. By adopting the framework, the writing-in and reading-out of the storage area of the encryption card are completed through two independent channels, and the data encryption and decryption unit can be absorbed in the data encryption and decryption, so that the data encryption and decryption efficiency is greatly improved.
In a preferred embodiment of the present invention, when the SSD controller executes the write operation and the address is the encrypted card storage area, it selects an idle storage unit and sends the address information and the task to be processed to the data encryption/decryption unit; and the data encryption and decryption unit directly stores the processed tasks into the storage unit after executing encryption and decryption operations. That is, the SSD controller allocates the idle storage module to store the task while allocating the task, thereby conveniently establishing the mapping relationship. By adopting the technical scheme, the data encryption and decryption unit can be directly stored to the corresponding storage unit after the encryption and decryption operation is completed, meanwhile, the SSD controller directly reads and writes the storage unit, and the data are fed back to the host and the data encryption and decryption process are completely independent, so that the processing efficiency is greatly improved.
Further, the SSD controller sets a data storage mapping table for recording the stored information, the algorithm used thereby, and the address corresponding thereto.
Further, the SSD controller sets an encryption card storage mapping table, and the encryption card storage mapping table is used for recording the addresses of each task and the corresponding storage unit. And simultaneously, a storage flag bit is also set in the storage mapping table of the encryption card, the storage flag bit is used for identifying the read-write state of the data in the storage unit, and the data in the storage unit is read out and then the storage space is released for subsequent write-in operation. By adopting the technical scheme, the states of data reading and writing in the storage unit are identified by setting the storage flag bit, at least including ready and done states, and when the state is set as ready, the tasks are stored in the corresponding storage units after encryption/decryption; the state is done, which indicates that corresponding data has been read from the storage unit, and the storage space can be released, so that the storage unit can store circularly, and the utilization rate of the storage space is greatly improved.
Furthermore, the solid state disk is provided with a plurality of data encryption and decryption units, and each data encryption and decryption unit has an ID with a unique identifier. The SSD controller sets an engine ID state table, and is used for recording the state of each data encryption and decryption unit and dynamically updating the state so that the SSD controller can distribute tasks to be processed. The SSD controller reasonably regulates and controls the work of the encryption and decryption engine according to the engine state table, and after the task is stored, the data encryption and decryption unit can process the next encryption and decryption task.
The encryption card storage mapping table at least comprises a task number, an engine number, engine state information and storage address information, wherein the task number is a unique identification number set by each received task; the engine number is the identification number of the data encryption and decryption unit which carries out encryption/decryption operation on the task; the engine state information is the working state of the data encryption and decryption process; the storage address information is address information of a storage unit stored after the task performs encryption/decryption operation. Specifically, in the data encryption and decryption operation process, after receiving a task sent by a host, the SSD controller establishes an IO task and determines a corresponding task number, and performs corresponding feedback on the host only after the IO task completes a specified operation; after an IO task is established, the SSD controller allocates an idle encryption and decryption engine to process the task, wherein the state information at least comprises busy and idle, and the state setting busy represents that the data encryption and decryption unit is performing data processing; the status is set to idle, which indicates that the data encryption and decryption unit completes the processing task, so that the data encryption and decryption unit can undertake a new task. By adopting the technical scheme, the process state of any task, the working state of the encryption and decryption engine and the address space state of the encryption card storage area can be clearly known through the storage mapping table, so that the encryption and decryption processing of the task is facilitated.
In a preferred embodiment, the data encryption and decryption unit selects a corresponding encryption algorithm according to a control instruction of the SSD controller. Further, the SSD controller receives a configuration command of the host, wherein the configuration command is used for configuring the encryption and decryption encryption algorithm type of the data encryption and decryption unit, and the encryption algorithm is at least one of AES-128/256, SM2, SM3, SM4, RSA, 3DES or SHA. Meanwhile, the configuration instruction further comprises the data length of the task to be processed, and the SSD controller reallocates the address space of the storage unit for the data encryption and decryption unit according to the configuration instruction. For example, if the current encryption task size is 2K, and the length after processing by the SM2 encryption algorithm is 4K, the storage space is reallocated by using the 4K space as the basic storage unit. By adopting the technical scheme, the dynamic allocation of the storage units is realized, so that an encryption algorithm can be set according to the requirements of users, and an optimal storage unit can be set according to actual requirements.
In the technical scheme, the control instruction is adopted to select the corresponding encryption algorithm, so that the complexity of the algorithm is increased to a certain extent. In a preferred embodiment, a plurality of encryption and decryption encryption algorithms are arranged in the encryption card, and the algorithm types are directly bound with a specific storage address space. That is, a plurality of encryption storage units and decryption storage units are arranged in a memory, each encryption storage unit or decryption storage unit is bound with the type of a specific encryption algorithm, data write operation is performed on the encryption storage unit at a specified address, a controller analyzes an encryption command of a corresponding encryption and decryption algorithm, similarly, the data write operation controller analyzes a decryption command of the decryption storage unit at the specified address into a decryption command of the corresponding encryption and decryption algorithm, the data encryption and decryption unit selects the corresponding encryption and decryption algorithm to perform encryption and decryption operation, after the encryption and decryption processing is finished, the data after the encryption and decryption processing is stored in the encryption/decryption storage unit, the controller informs a host of read operation performed on the address, and the read data is the data after the encryption and decryption processing is finished. By adopting the technical scheme, the algorithm type is directly bound with the specific storage address space, so that the data communication protocol is greatly simplified.
In a preferred embodiment, referring to fig. 4, a schematic diagram of another preferred embodiment of the present invention is shown, further including a data buffer, where the data buffer is connected to the SSD controller, the hard disk interface, the data encryption/decryption unit, and the storage module, and is used to cache data.
In a preferred embodiment, the encryption card storage area adopts a plurality of eMMC chips, and the plurality of eMMC chips are cascaded through a bus.
Referring to fig. 5, there is shown a flow chart diagram of a data processing method of an encryption computer according to the present invention, including the steps of:
step S1: the host sends an instruction to the encrypted solid state disk;
step S2: the encryption solid state disk analyzes and executes corresponding operation after acquiring the instruction sent by the host;
step S3: after the operation is finished, the encrypted solid state disk feeds back a message to the host;
the solid state disk is built in a host and at least comprises a hard disk interface, an SSD controller, a data encryption and decryption unit and a storage module, wherein the data encryption and decryption unit at least comprises an encryption processing unit, a decryption processing unit and a key storage unit, and the encryption processing unit is used for executing data encryption operation; the decryption processing unit is used for executing data decryption operation; the key storage unit is used for storing a key;
the storage module comprises a data storage area and an encryption card storage area, and the data storage area is used for storing normal data of the solid state disk;
the encryption card storage area is further provided with an encryption storage unit and a decryption storage unit, and the encryption storage unit and the decryption storage unit are respectively provided with a plurality of storage units which are respectively used for storing data after encryption operation or decryption operation is executed;
the SSD controller is connected with the data encryption and decryption unit and the hard disk interface and is used for acquiring and analyzing the command sent by the host and then executing corresponding processing;
in step S2, when the obtained instruction is a write instruction and the write address is a data storage area, the SSD controller sends the to-be-processed task to the data encryption and decryption unit, and stores the to-be-processed task in the data storage area after the encryption operation of the encryption processing unit;
when the obtained command is a write command and the write address is an encryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being encrypted by the encryption processing unit; when the obtained command is a write command and the write address is a decryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being decrypted by the decryption processing unit;
in step S3, after the write command is executed and the address is the encrypted card storage area, the SSD controller feeds back a task completion message to the host, where the task completion message at least includes address information of a storage unit corresponding to the task;
when the acquired instruction is a read instruction and the address is a data storage area, the SSD controller reads data information corresponding to the address and sends the data information to the data encryption and decryption unit, and the data information is decrypted by the decryption processing unit and then sent to the host;
and when the acquired instruction is a read instruction and the address is the encrypted card storage area, the SSD controller directly reads the data information of the storage unit corresponding to the address and sends the data information to the host.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An encryption computer is characterized by comprising a host and an encryption solid state disk arranged in the host, wherein the host at least comprises a CPU and a mainboard;
the encryption solid state disk at least comprises a hard disk interface, an SSD controller, a random number generator, an algorithm storage unit, a data encryption and decryption unit and a storage module, wherein the hard disk interface adopts any one of a PCI interface, an SAS interface or an SATA interface and is used for being connected with a host;
the random number generator is used for generating a random number under the control of the SSD controller to serve as a key for data encryption and decryption;
the algorithm storage unit is connected with the SSD controller and the data encryption and decryption unit and is used for storing the algorithm of data encryption and decryption;
the data encryption and decryption unit at least comprises an encryption processing unit, a decryption processing unit and a key storage unit, and the encryption processing unit is used for executing data encryption operation; the decryption processing unit is used for executing data decryption operation; the key storage unit is used for storing a key;
the storage module comprises a data storage area and an encryption card storage area, and the data storage area is used for storing normal data of the solid state disk;
the encryption card storage area is further provided with an encryption storage unit and a decryption storage unit, and the encryption storage unit and the decryption storage unit are respectively provided with a plurality of storage units which are respectively used for storing data after encryption operation or decryption operation is executed;
the SSD controller is connected with the data encryption and decryption unit and the hard disk interface and is used for acquiring and analyzing the command sent by the host and then executing corresponding processing;
when the obtained command is a write command and the write address is a data storage area, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is stored in the data storage area after being encrypted by the encryption processing unit;
when the obtained command is a write command and the write address is an encryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being encrypted by the encryption processing unit; when the obtained command is a write command and the write address is a decryption storage unit, the SSD controller sends the task to be processed to the data encryption and decryption unit, and the task to be processed is directly stored in the corresponding storage unit after being decrypted by the decryption processing unit; meanwhile, the SSD controller feeds back a task completion message to the host, wherein the feedback task completion message at least comprises address information of a storage unit corresponding to the task;
when the acquired instruction is a read instruction and the address is a data storage area, the SSD controller reads data information corresponding to the address and sends the data information to the data encryption and decryption unit, and the data information is decrypted by the decryption processing unit and then sent to the host;
and when the acquired instruction is a read instruction and the address is the encrypted card storage area, the SSD controller directly reads the data information of the storage unit corresponding to the address and sends the data information to the host.
2. The encryption computer of claim 1, wherein the algorithm storage unit stores a plurality of data encryption and decryption algorithms, and the data encryption and decryption unit selects a corresponding encryption algorithm according to a control instruction of the SSD controller.
3. The encryption computer of claim 1 or 2, wherein the algorithm for encrypting and decrypting the data in the algorithm storage unit is at least any one of AES-128/256, SM2, SM3, SM4, RSA, 3DES or SHA.
4. The encryption computer of claim 1 or 2, wherein the encryption solid state disk further comprises a data buffer, and the data buffer is connected to the SSD controller, the hard disk interface, the data encryption/decryption unit, and the storage module, and is configured to cache data.
5. The encryption computer of claim 1 or 2, wherein the encryption card storage area employs a plurality of eMMC chips, and the plurality of eMMC chips are cascaded through a bus.
6. The encryption computer of claim 1 or 2, wherein the SSD controller performs a write operation and addresses an encryption card storage area, selects a free storage unit and sends address information thereof to the data encryption/decryption unit together with the task to be processed; and the data encryption and decryption unit directly stores the processed tasks into the storage unit after executing encryption and decryption operations.
7. The encryption computer of claim 1 or 2, wherein the SSD controller sets a data storage mapping table for recording the stored information, the algorithm it employs and its corresponding address.
8. The encryption computer of claim 1 or 2, wherein the SSD controller sets an encryption card memory map table for recording addresses of each task and its corresponding memory location.
9. The encryption computer of claim 8, wherein the encryption card memory map table further sets a storage flag bit, the storage flag bit is used to identify the read/write status of the data in the storage unit, and the data in the storage unit is read out to release the storage space for subsequent write operation.
10. The encryption computer of claim 1 or 2, wherein the encryption solid state disk is provided with a plurality of data encryption and decryption units, and each data encryption and decryption unit has an ID with a unique identification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810850447.6A CN110765498A (en) | 2018-07-28 | 2018-07-28 | Encryption computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810850447.6A CN110765498A (en) | 2018-07-28 | 2018-07-28 | Encryption computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110765498A true CN110765498A (en) | 2020-02-07 |
Family
ID=69328961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810850447.6A Withdrawn CN110765498A (en) | 2018-07-28 | 2018-07-28 | Encryption computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110765498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115994106A (en) * | 2023-02-17 | 2023-04-21 | 广州万协通信息技术有限公司 | Mass data encryption and decryption method, data security device and electronic equipment |
-
2018
- 2018-07-28 CN CN201810850447.6A patent/CN110765498A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115994106A (en) * | 2023-02-17 | 2023-04-21 | 广州万协通信息技术有限公司 | Mass data encryption and decryption method, data security device and electronic equipment |
| CN115994106B (en) * | 2023-02-17 | 2023-09-05 | 广州万协通信息技术有限公司 | Mass data encryption and decryption method, data security device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107256363B (en) | High-speed encryption and decryption device composed of encryption and decryption module array | |
| KR102139179B1 (en) | Security subsystem | |
| CN107092835B (en) | Computer data encryption device and method for virtual storage disk | |
| CN109067523A (en) | A kind of data ciphering method of encrypted card | |
| CN111131130B (en) | Key management method and system | |
| US20220200968A1 (en) | Storage system with encrypted data storage device telemetry data | |
| CN110765501A (en) | Encrypted USB flash disk | |
| CN110163011B (en) | High-speed safe hard disk design method | |
| CN109104275A (en) | A kind of HSM equipment | |
| CN109325356A (en) | A kind of encryption card architecture | |
| WO2024094137A1 (en) | Data transmission method, apparatus and system, electronic device, and storage medium | |
| CN112035900B (en) | High-performance password card and communication method thereof | |
| WO2022055684A1 (en) | Flash memory local purge | |
| CN110765467A (en) | Encrypted solid state disk | |
| US11644983B2 (en) | Storage device having encryption | |
| CN103365605A (en) | Information storage device and method | |
| US20180364946A1 (en) | Data storage device | |
| CN110765498A (en) | Encryption computer | |
| CN110765497A (en) | Data processing method of encryption computer | |
| CN110765500A (en) | Data processing method of encrypted solid state disk | |
| US10929030B2 (en) | Computer and control method | |
| CN106100829A (en) | The method and device of encryption storage | |
| CN110765499A (en) | Data processing method of encrypted USB flash disk | |
| CN110765468A (en) | Encryption card | |
| CN110659472A (en) | Password card and data storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200207 |
|
| WW01 | Invention patent application withdrawn after publication |