CN112464299A - Method and device for realizing safety data storage, computer storage medium and terminal - Google Patents
Method and device for realizing safety data storage, computer storage medium and terminal Download PDFInfo
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- CN112464299A CN112464299A CN202011354790.5A CN202011354790A CN112464299A CN 112464299 A CN112464299 A CN 112464299A CN 202011354790 A CN202011354790 A CN 202011354790A CN 112464299 A CN112464299 A CN 112464299A
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- 238000013500 data storage Methods 0.000 title claims abstract description 19
- 231100000279 safety data Toxicity 0.000 title claims description 96
- 230000006870 function Effects 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 description 8
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- G—PHYSICS
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- 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
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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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Abstract
The embodiment of the invention discloses a method, a device, a computer storage medium and a terminal for realizing safe data storage, wherein after a one-time password (OTP) storage area is full of second safe data, a code file of first safe data generated by the second safe data is stored in a code storage area of a storage chip, so that the first safe data is stored in the storage chip, and the use efficiency of the storage chip is improved; when the first security data is stored through the code file, the second security data of the OTP memory area is applied, and the security of the OTP memory area is continued by storing the first security data based on the security of the second security data.
Description
Technical Field
The present disclosure relates to, but not limited to, data security technologies, and more particularly, to a method, an apparatus, a computer storage medium, and a terminal for implementing secure data storage.
Background
A memory chip based on a one-time password (OTP) storage medium is a one-time programmable memory that can be programmed only once, and thus is generally used to store security data such as a key, a digital signature, and the like. Since the OTP memory area of the memory chip can be edited only once, when the OTP memory area is full, new security data is written to the user, and the new security data is not written to the OTP memory area in the related art, which limits the use of the memory chip.
In summary, how to improve the utilization efficiency of the memory chip becomes a problem to be solved.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides a method and a device for realizing safe data storage, a computer storage medium and a terminal, which can improve the use efficiency of a storage chip.
The embodiment of the invention provides a method for realizing safe data storage, which comprises the following steps:
when newly generated first security data to be stored are received, judging whether a one-time password (OTP) storage area of a storage chip is full of second security data or not;
when judging that the OTP memory area of the memory chip is full of second security data, generating a code file for generating first security data according to more than one second security data operation;
and storing the generated code file in a code storage area of the storage chip.
In an exemplary embodiment, the generating a code file that generates first security data according to one or more second security data operations includes:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first security data by the operation of the more than one second security data according to the more than one determined second security data and the first security data;
and generating the code file according to the determined operation function for generating the first safety data by the more than one second safety data operation.
In one exemplary embodiment, the determining an arithmetic function that generates the first security data from the one or more second security data operations includes:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in the more than one second safety data for each split first safety byte data, and calculating to obtain an operation instruction of the operation required by the first safety byte data;
and combining all the generated operation instructions into the operation function.
In an exemplary embodiment, after storing the generated code file in the code storage area of the memory chip, the method further includes:
and when a reading instruction for reading the first safety data is received, generating the first safety data according to the code file stored in the code storage area.
In an exemplary embodiment, the generating the first security data according to the code file stored in the code storage area includes:
reading the code file according to the received reading instruction;
and loading the code file to read the more than one second safety data from the OTP storage area through the loaded code file, and generating the first safety data according to the operation of the more than one read second safety data.
On the other hand, an embodiment of the present invention further provides a computer storage medium, where a computer program is stored in the computer storage medium, and when the computer program is executed by a processor, the method for implementing the secure data storage is implemented.
In another aspect, an embodiment of the present invention further provides a terminal, including: a memory and a processor, the memory having a computer program stored therein; wherein,
the processor is configured to execute the computer program in the memory;
the computer program, when executed by the processor, implements a method of implementing secure data storage as described above.
In another aspect, an embodiment of the present invention further provides an apparatus for implementing secure data storage, where the apparatus includes: the device comprises a judging unit, a generating unit and a storing unit; wherein,
the judging unit is configured to: when newly generated first security data to be stored are received, judging whether a one-time password (OTP) storage area of a storage chip is full of second security data or not;
the generation unit is configured to: when judging that the OTP memory area of the memory chip is full of second security data, generating a code file for generating first security data according to more than one second security data operation;
the storage unit is configured to: and storing the generated code file in a code storage area of the storage chip.
In an exemplary embodiment, the generating unit is arranged to:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first security data by the operation of the more than one second security data according to the more than one determined second security data and the first security data;
and generating the code file according to the determined operation function for generating the first safety data by the more than one second safety data operation.
In an exemplary embodiment, the generating unit is configured to determine an arithmetic function for generating the first security data by the one or more second security data operations, and includes:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in the more than one second safety data for each split first safety byte data, and calculating to obtain an operation instruction of the operation required by the first safety byte data;
and combining all the generated operation instructions into the operation function.
In an exemplary embodiment, the apparatus further comprises a reading unit configured to:
and when a reading instruction for reading the first safety data is received, generating the first safety data according to the code file stored in the code storage area.
According to the embodiment of the invention, after the one-time password (OTP) storage area is full of the second safety data, the code file of the first safety data generated by the second safety data is stored in the code storage area of the storage chip, so that the first safety data is stored in the storage chip, and the use efficiency of the storage chip is improved; when the first security data is stored through the code file, the second security data of the OTP memory area is applied, and the security of the OTP memory area is continued by storing the first security data based on the security of the second security data.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a flow diagram of a method of implementing secure data storage according to an embodiment of the present invention;
FIG. 2 is a block diagram of an apparatus for implementing secure data storage according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
The inventor of the present application analyzes and finds that the memory chip includes a code storage area in addition to a storage area, when the OTP storage area is full of the security data, the code storage area often has a free storage space, and how to use the storage space of the code storage area to store the security data becomes a direction for improving the use efficiency of the memory chip.
Fig. 1 is a flowchart of a method for implementing secure data storage according to an embodiment of the present invention, as shown in fig. 1, including:
it should be noted that, in the embodiment of the present invention, the first security data and the second security data may include security data such as a key and a digital signature. In one illustrative example, an embodiment of the present invention generates a code file that generates first secure data according to one or more second secure data operations, comprising:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first safety data by the operation of the more than one second safety data according to the more than one determined second safety data and the first safety data;
and generating a code file according to the determined operation function for generating the first safety data by more than one second safety data operation.
It should be noted that, after the operation function is determined, the generation of the code file based on the operation function may be implemented by the existing programming application in the related art.
In an exemplary example, the embodiment of the present invention may determine location information of each byte of data in the first security data in more than one second security data, and generate an operation function for obtaining the first security data according to the location information; in an exemplary embodiment, the embodiment of the present invention may further pre-store more than one operation formula including a preset step number operation, and after determining more than one second security data, select a preset number of operation formulas from the stored more than one operation formulas; substituting the determined more than one second safety data into each selected operation formula, gradually operating, and determining whether the output result of each operation step is equal to the first safety data; before executing the operation of the preset steps, if the output result is equal to the first safety data, determining the operation function according to the operation formula and the operation steps of the output result which is equal to the first safety data. When the first security data is not obtained through the operation of the preset step number in the operation formula, the embodiment of the present invention may obtain the operation function by referring to the method for generating the first security data according to the position information. The following is briefly described by way of example: assuming that only one operation formula is provided, for more than one second safety data, more than one operation including summation, difference calculation, product calculation, quotient calculation, remainder calculation, exclusive or and the like is set in the operation formula, and the preset step number is equal to 100; performing step-by-step operation on the more than one second safety data through an operation formula, determining whether an output result is equal to the first safety data or not every operation step, and determining the first 35-step operation of the operation formula as the operation function if the operation formula with the output result equal to the first safety data is obtained before 100-step operation is performed, for example, the first 35-step operation of the operation formula is performed, and the output result is equal to the first safety data; if the first security data is not obtained through 100 steps of operation, the embodiment of the present invention may obtain the operation function by referring to the method for generating the first security data according to the location information. When a plurality of operation formulas are included, the plurality of operation formulas are independent of each other, and may be processed simultaneously or separately. It should be noted that, after the more than one second security data is determined, the determined more than one second security data may be split into a plurality of parts, and the operation set in the operation formula may perform more than one operation on each split part, including summation, difference calculation, product calculation, quotient calculation, remainder calculation, exclusive or and the like. In order to ensure the security of the first security data, the embodiment of the present invention may set the minimum number of operation steps that need to be executed to generate the first security data through one or more second security data operations, and theoretically, the greater the number of operation steps, the higher the security of the first security data.
In one illustrative example, the preset policy includes: and determining more than one second safety data through the preset starting position and length.
In one illustrative example, an embodiment of the present invention determines an arithmetic function for generating first security data from more than one second security data operation, comprising:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in more than one second safety data for each piece of split first safety byte data, and operating to obtain an operation instruction of operation required by the first safety byte data;
and combining all the generated operation instructions into an operation function.
It should be noted that the method for combining the operation instructions into the operation function can be implemented by referring to the related art, and is not described herein again.
And step 103, storing the generated code file in a code storage area of the storage chip.
According to the embodiment of the invention, after the one-time password (OTP) storage area is full of the second safety data, the code file of the first safety data generated by the second safety data is stored in the code storage area of the storage chip, so that the first safety data is stored in the storage chip, and the use efficiency of the storage chip is improved; when the first security data is stored through the code file, the second security data of the OTP memory area is applied, and the security of the OTP memory area is continued by storing the first security data based on the security of the second security data. In an exemplary embodiment, after storing the generated code file in the code storage area of the memory chip, the method in the embodiment of the present invention further includes:
and when a reading instruction for reading the first security data is received, generating the first security data according to the code file stored in the code storage area.
In one illustrative example, an embodiment of the present invention generates first security data from a code file stored in a code storage area, including:
reading the code file according to the received reading instruction;
and loading the code file to read more than one second safety data from the OTP storage area through the loaded code file, and generating the first safety data according to the operation of the read more than one second safety data.
In an exemplary embodiment, different first security data in the embodiment of the present invention may generate a corresponding code file, and the establishment of the correspondence between the first security data and the code file may be implemented by referring to the related art. The respective first security data may be distinguished by distinguishing information existing in the related art. When a reading instruction is received, the reading instruction should include distinguishing information indicating first security data to be read, and a corresponding code file can be read according to the determined first reading data to be read.
The code file of the embodiment of the invention comprises the operation required by generating the first safety data by more than one second safety data, so the second safety data can be obtained by executing the operation required by generating the first safety data after more than one second safety data is read from the OTP memory area.
The embodiment of the invention also provides a computer storage medium, wherein a computer program is stored in the computer storage medium, and when being executed by a processor, the computer program realizes the method for realizing the safe data storage.
An embodiment of the present invention further provides a terminal, including: a memory and a processor, the memory having stored therein a computer program; wherein,
the processor is configured to execute the computer program in the memory;
the computer program, when executed by a processor, implements a method of implementing secure data storage as described above.
Fig. 2 is a block diagram of an apparatus for implementing secure data storage according to an embodiment of the present invention, as shown in fig. 2, including: the device comprises a judging unit, a generating unit and a storing unit; wherein,
the judging unit is configured to: when newly generated first security data to be stored are received, judging whether a one-time password (OTP) storage area of a storage chip is full of second security data or not;
the generation unit is configured to: when judging that the OTP memory area of the memory chip is full of second security data, generating a code file for generating first security data according to more than one second security data operation;
the storage unit is configured to: and storing the generated code file in a code storage area of the storage chip.
In an exemplary embodiment, the generation unit of the embodiment of the present invention is configured to:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first safety data by the operation of the more than one second safety data according to the more than one determined second safety data and the first safety data;
and generating a code file according to the determined operation function for generating the first safety data by more than one second safety data operation.
In an exemplary embodiment, the generation unit of the present invention is configured to determine an operation function for generating the first security data by one or more second security data operations, and includes:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in more than one second safety data for each piece of split first safety byte data, and operating to obtain an operation instruction of operation required by the first safety byte data;
and combining all the generated operation instructions into an operation function. In an exemplary embodiment, the apparatus of the present invention further includes a reading unit configured to:
and when a reading instruction for reading the first security data is received, generating the first security data according to the code file stored in the code storage area. In an illustrative example, a reading unit according to an embodiment of the present invention is configured to:
reading the code file according to the received reading instruction;
and loading the code file to read more than one second safety data from the OTP storage area through the loaded code file, and generating the first safety data according to the operation of the read more than one second safety data.
According to the embodiment of the invention, after the one-time password (OTP) storage area is full of the second safety data, the code file of the first safety data generated by the second safety data is stored in the code storage area of the storage chip, so that the first safety data is stored in the storage chip, and the use efficiency of the storage chip is improved; when the first security data is stored through the code file, the second security data of the OTP memory area is applied, and the security of the OTP memory area is continued by storing the first security data based on the security of the second security data.
"one of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (11)
1. A method of implementing secure data storage, comprising:
when newly generated first security data to be stored are received, judging whether a one-time password (OTP) storage area of a storage chip is full of second security data or not;
when judging that the OTP memory area of the memory chip is full of second security data, generating a code file for generating first security data according to more than one second security data operation;
and storing the generated code file in a code storage area of the storage chip.
2. The method of claim 1, wherein generating a code file that generates first security data according to one or more second security data operations comprises:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first security data by the operation of the more than one second security data according to the more than one determined second security data and the first security data;
and generating the code file according to the determined operation function for generating the first safety data by the more than one second safety data operation.
3. The method of claim 2, wherein determining an arithmetic function that generates the first security data from the one or more second security data operations comprises:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in the more than one second safety data for each split first safety byte data, and calculating to obtain an operation instruction of the operation required by the first safety byte data;
and combining all the generated operation instructions into the operation function.
4. The method according to any one of claims 1 to 3, wherein the generated code file is stored in a code storage area of the memory chip, and the method further comprises:
and when a reading instruction for reading the first safety data is received, generating the first safety data according to the code file stored in the code storage area.
5. The method of claim 4, wherein generating the first security data from the code file stored in the code storage area comprises:
reading the code file according to the received reading instruction;
and loading the code file to read the more than one second safety data from the OTP storage area through the loaded code file, and generating the first safety data according to the operation of the more than one read second safety data.
6. A computer storage medium having stored thereon a computer program which, when executed by a processor, implements a method of implementing secure data storage as claimed in any of claims 1 to 5.
7. A terminal, comprising: a memory and a processor, the memory having a computer program stored therein; wherein,
the processor is configured to execute the computer program in the memory;
the computer program, when executed by the processor, implementing a method of implementing secure data storage as claimed in any of claims 1 to 5.
8. An apparatus for implementing secure data storage, comprising: the device comprises a judging unit, a generating unit and a storing unit; wherein,
the judging unit is configured to: when newly generated first security data to be stored are received, judging whether a one-time password (OTP) storage area of a storage chip is full of second security data or not;
the generation unit is configured to: when judging that the OTP memory area of the memory chip is full of second security data, generating a code file for generating first security data according to more than one second security data operation;
the storage unit is configured to: and storing the generated code file in a code storage area of the storage chip.
9. The apparatus of claim 8, wherein the generating unit is configured to:
determining more than one second safety data used for generating the first safety data from the stored second safety data according to a preset strategy;
determining an operation function for generating the first security data by the operation of the more than one second security data according to the more than one determined second security data and the first security data;
and generating the code file according to the determined operation function for generating the first safety data by the more than one second safety data operation.
10. The apparatus of claim 9, wherein the generating unit is configured to determine an arithmetic function for generating the first security data from the one or more second security data operations, comprising:
splitting the first security data into more than one first security byte data according to a preset byte length;
respectively generating more than one byte in the more than one second safety data for each split first safety byte data, and calculating to obtain an operation instruction of the operation required by the first safety byte data;
and combining all the generated operation instructions into the operation function.
11. The apparatus according to any one of claims 8 to 10, further comprising a reading unit configured to:
and when a reading instruction for reading the first safety data is received, generating the first safety data according to the code file stored in the code storage area.
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