CN109858241B - Single-equipment code safe execution and interaction method and interaction system thereof - Google Patents
Single-equipment code safe execution and interaction method and interaction system thereof Download PDFInfo
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Abstract
The invention relates to a single equipment code safe execution and interaction method and an interaction system thereof, which comprise a display and an operating system, wherein the operating system is provided with an encrypted file system, an encryption module and a function call interception plug-in module; the file system sends a ciphertext code conversion request to the encryption module; the encryption module performs ciphertext coding conversion and returns the ciphertext to the operating system; the encryption module performs ciphertext coding conversion on the ciphertext of the code operation result and returns the ciphertext to the operating system; the operating system fuses the ciphertext of the unconverted code operation result with the ciphertext of the code operation result which can be displayed or processed by the interface, the fusion result is sent to a display or a processing interface, and the display displays or the processing interface processes the operation result corresponding to the code request. The invention effectively protects the security of the code in the operating system.
Description
Technical Field
The invention belongs to the technical field of single equipment code safety protection, and particularly relates to a single equipment code safety execution and interaction method and an interaction system thereof.
Background
In the interaction between people and computers, code security is a problem to be solved urgently. In the prior art, various technical schemes are adopted to ensure the safety of codes stored in various links such as a computer hard disk, a memory, a screen cache and the like. The prior art has the problems that the safety interaction behavior is too complicated and easy to attack. The invention solves the problems of code safety execution, interface and interaction of single equipment from a brand-new angle.
Disclosure of Invention
The invention aims to solve the technical problems that a single-device code safety execution and interaction method and an interaction system thereof are provided, and aims to solve the technical problems that code safety execution and interaction behaviors are too complicated and are easy to attack.
The invention is realized in this way, and provides a single device code safe execution and interaction method, which comprises the following specific steps:
a user sends a code dynamic secret culture secure execution request to a file system of the user by using an operating system of a single device, wherein the code comprises a code plaintext and/or a code ciphertext, and the secure execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext to dynamically generate the code ciphertext;
the file system puts forward a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module arranged in a single-device memory, and simultaneously sends the code plaintext or the ciphertext to the encryption module;
thirdly, the encryption module carries out coding encryption on the code plaintext or carries out ciphertext coding conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system;
fourthly, the operating system performs execution operation processing on the executable code ciphertext to obtain the ciphertext of the code execution result;
before the ciphertext of the code execution result is pushed to a user or a related processing interface, the operating system firstly puts forward a ciphertext coding conversion request for the ciphertext of the code execution result to an encryption module and sends the ciphertext of the code execution result to the encryption module; the operating system simultaneously intercepts images and/or character codes to be displayed or processed by other relevant processing interfaces;
the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the converted ciphertext of the code execution result to the operating system;
and (seventhly), fusing the ciphertext of the code execution result which is not converted by the operating system and the ciphertext of the converted code execution result to generate a code execution result which corresponds to the user code safety execution request and can be displayed or processed by other related interfaces, and displaying the code execution result or/and the code execution result processed by the related interfaces on a display screen of the single device.
The embodiment of the invention is realized in such a way that the single equipment code safe execution and interaction system comprises a display screen, a processing interface, a man-machine interaction and operation system, wherein the operation system is provided with an encryption file system, a function call interception plug-in module and an encryption module,
a user uses an operating system of a single device to send a code dynamic secret culture security execution request to a file system of the user, wherein the code comprises a code plaintext and/or a code ciphertext, and the security execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext to dynamically generate the code ciphertext;
the file system sends a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module of the operating system, and simultaneously sends the code plaintext or the ciphertext to the encryption module;
the encryption module carries out coding encryption on the code plaintext or carries out ciphertext coding conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system;
the operating system processes and executes the executable code ciphertext to obtain a ciphertext of a code execution result;
before the cipher text of the code execution result is pushed to a user or a related processing interface, the operating system firstly puts forward a cipher text code conversion request for the cipher text of the code execution result to an encryption module and sends the cipher text of the code execution result to the encryption module; the operating system simultaneously intercepts images and/or character codes to be displayed or processed by other relevant processing interfaces;
the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the ciphertext of the converted code execution result to the operating system;
the operating system fuses the ciphertext of the unconverted code execution result with the ciphertext of the converted code execution result to generate a code execution result which corresponds to the user code safe execution request and can be displayed or processed by other related processing interfaces, and a display screen of the single device displays the code execution result or/and the related interface processing code execution result.
Compared with the prior art, the single-device code safe execution and interaction method and the single-device code safe execution and interaction system have the following characteristics:
1. the codes are in one-time secret culture in the memory, CPU and network of the terminal most of time, no complete plaintext codes exist, at most, only partial plaintext codes exist, the integrality and the effectiveness of the encrypted or encrypted and converted computer execution codes obtained from the encryption module each time are different and unique, the execution result of the ciphertext codes is also non-plaintext, the binary system result of the computer operation of the ciphertext codes with the same appearance is also different, and the basic difference is achieved compared with the existing code confusion.
2. The encrypted state of the ciphertext code in the hard disk and the encrypted state of the ciphertext code in other components (such as a memory, a CPU, a network and the like) only have a mathematical one-time random transformation relation, and the corresponding code and the corresponding attribute of the hard disk cannot be found from the ciphertext code and the attribute (API call, variable name, function name, pointer, execution flow and the like) of the components.
3. Even if the codes need to be decrypted into plaintext codes in application, the corresponding ciphertext codes and the attributes (API call, variable name, function name, pointer, execution flow and the like) thereof on the hard disk cannot be found, and the safety of the ciphertext codes in the hard disk is not damaged.
4. The man-machine interaction is also completed by the one-time ciphertext codes, and the usability, the safety and the experience consistency of the user are not influenced.
5. The processing interface is also completed by the one-time cipher text code, and the usability, the safety, the consistency and the integrity of the interface are not influenced.
6. The ciphertext code and the original plaintext code have the same performability, and the usability and the execution consistency of the codes are not influenced.
7. The operation result of the same ciphertext code is secret and transparent for an executor (computer CPU), and the result of each execution is different, but the effect of the whole execution is equivalent to the served person (such as a person, a processing interface, an encryption module and the like), and the 'correctness' of the ciphertext code is judged by the served person or the computer.
8. The one-time safe conversion can be carried out between the ciphertext codes, and the safety of the ciphertext codes is not damaged.
Drawings
FIG. 1 is a schematic diagram of a single device code security method according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in 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.
Referring to fig. 1, a preferred embodiment of a single device code secure execution and interaction method according to the present invention includes the following specific steps:
and (I) a user sends a code dynamic secret culture secure execution request to a file system of the user by using an operating system of the single device, wherein the code comprises a code plaintext and/or a code ciphertext, the code comprises at least one of an executable source code, a compiled byte stream code, a compiled CPU instruction code and the like, and the secure execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext and dynamically generate the code ciphertext and the like.
And secondly, the file system sends a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module arranged in the single-device memory, and simultaneously sends the code plaintext or the code ciphertext to the encryption module. The code ciphertext comprises a code function and variable parameters corresponding to the code function, such as a soft keyboard, a Cookie, a token request and the like. The code function and the variable parameters corresponding to the code function are safe, even if the CPU of the computer is not contacted with the plaintext codes, the memory does not have the plaintext codes, and the code safety execution result can be only seen by a person and can be authenticated by the encryption module.
And thirdly, the encryption module encodes and encrypts the code plaintext or performs ciphertext code conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system.
And fourthly, the operating system performs execution operation processing on the executable code ciphertext to obtain the ciphertext of the code execution result. The code operation result which can be displayed or processed by the processing interface is also a ciphertext, and the ciphertext comprises an encrypted and/or randomly obfuscated code function, a variable parameter corresponding to the code function and the like.
Before the ciphertext of the code execution result is pushed to a user or a related processing interface, the operating system firstly puts forward a ciphertext coding conversion request for the ciphertext of the code execution result to an encryption module and sends the ciphertext of the code execution result to the encryption module; the operating system simultaneously intercepts images and/or text codes to be displayed or otherwise processed by the associated processing interface.
And (VI), the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the converted ciphertext of the code execution result to the operating system. The ciphertext of the interface code operation result that can be displayed or processed is not limited to include: at least one of subcode, ciphertext, font, CSS, HTML, js code, and the like.
And (seventhly), fusing the ciphertext of the unconverted code execution result and the ciphertext of the converted code execution result by the operating system to generate a code execution result which corresponds to the user code safe execution request and can be displayed or processed by other related processing interfaces, and displaying the code execution result on a display screen of the single device or/and processing the code execution result by the related interfaces. The fusion result sent to the display screen or the interface in the step is disposable, the binary codes of the fusion, interaction and execution results after refreshing are different every time, but the semantics of the content seen by the user or received by the interface are understandable and unchangeable. The codes in the display screen or the interface are processed safely, and safety measures such as complete real codes, clear code-free man-machine interaction, execution result tokenization and the like are included. The effect of the whole execution of the operating system is equivalent to the correctness of the original plaintext code: the computer executes the code 'right', the man-machine interaction 'right', and the 'right' is equal to 'the encryption module can confirm' or 'the human can understand'. In the invention, the step (two) and the step (three) can be repeated for a plurality of times until the code ciphertext is completely subjected to ciphertext code conversion.
The invention discloses a single-equipment code safe execution and interaction system which comprises a display screen, a processing interface, a man-machine interaction and operation system, wherein an encryption file system, a function call interception plug-in module and an encryption module are arranged in the operation system, a user uses the operation system of single equipment to send a code dynamic secret culture safe execution request to the file system of the user, the code comprises a code plaintext and/or a code ciphertext, and the safe execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext to dynamically generate the code ciphertext. The file system provides a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module of the operating system, and simultaneously sends the code plaintext or the code ciphertext to the encryption module. And the encryption module performs coding encryption on the code plaintext or performs ciphertext coding conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system. And the operating system processes and executes the executable code ciphertext to obtain a ciphertext of a code execution result. Before the cipher text of the code execution result is pushed to a user or other processing interfaces, the operating system firstly puts forward a cipher text coding conversion request for the cipher text of the code execution result to the encryption module, and sends the cipher text of the code execution result to the encryption module. The operating system simultaneously intercepts images and/or text codes to be displayed or otherwise processed by the associated processing interface. And the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the converted ciphertext of the code execution result to the operating system. And the operating system fuses the ciphertext of the unconverted code execution result and the ciphertext of the converted code execution result to generate a code execution result which corresponds to the user code safe execution request and can be displayed or processed by other related interfaces, and a display screen of the single device displays or processes the code execution result by the related interfaces.
The code is a ciphertext, the ciphertext comprises but is not limited to a code function, variable parameters and the like corresponding to the code function, the ciphertext can be safely executed, and even if the CPU of the computer is not contacted with the plaintext code, the plaintext code does not exist in the memory. The code operation result which can be processed by the display or the interface is ciphertext and comprises an encrypted and/or randomly obfuscated code function, a variable parameter corresponding to the code function and the like. The fusion result sent to the display screen or the processing interface is disposable, the binary codes of the fusion, interaction and execution results after refreshing are different each time, and the semantics of the content seen by the user or received by the processing interface are understandable and invariable. The file system provides a request for carrying out cipher text coding conversion on the code cipher text to an encryption module arranged in a single-device memory, and the encryption module carries out cipher text coding conversion on the code cipher text and then returns the executable code cipher text after conversion to the file system for multiple times until the code cipher text is completely subjected to cipher text coding conversion.
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 (8)
1. A single device code safe execution and interaction method comprises the following specific steps:
a user sends a code dynamic secret culture secure execution request to a file system of the user by using an operating system of a single device, wherein the code comprises a code plaintext and/or a code ciphertext, and the secure execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext to dynamically generate the code ciphertext;
the file system puts forward a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module arranged in a single-device memory, and simultaneously sends the code plaintext or the code ciphertext to the encryption module;
thirdly, the encryption module carries out coding encryption on the code plaintext or carries out ciphertext coding conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system;
fourthly, the operating system performs execution operation processing on the executable code ciphertext to obtain the ciphertext of the code execution result;
before the ciphertext of the code execution result is pushed to a user or a related processing interface, the operating system firstly puts forward a ciphertext coding conversion request for the ciphertext of the code execution result to an encryption module and sends the ciphertext of the code execution result to the encryption module; the operating system simultaneously intercepts images and/or character codes to be displayed or processed by other relevant processing interfaces;
the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the converted ciphertext of the code execution result to the operating system;
the operating system fuses the ciphertext of the unconverted code execution result and the ciphertext of the converted code execution result to generate a code execution result which corresponds to the user code safe execution request and can be displayed or processed by other related interfaces, and a display screen of the single device displays the code execution result or/and the code execution result processed by the related interfaces;
in the step (VII), the fusion result sent to the display screen or the processing interface is one-time, the binary codes of the fusion, interaction and execution results are different each time after refreshing, and the semantics of the content received by the user or the processing interface can be understood and unchanged; the code in the display screen or the interface is processed safely, including no complete real code, no clear code man-machine interaction, execution result token safety measure, the whole execution effect of the operating system is equivalent to the correctness of the original clear code: the computer executes the code 'right', the man-machine interaction 'right', and the 'right' is equal to 'the encryption module can confirm' or 'the human can understand'.
2. The single device code secure execution and interaction method of claim 1, wherein the code is a ciphertext, the ciphertext including the code function and a variable parameter corresponding to the code function is securely executable, and even if no plaintext code is exposed to the computer CPU, the memory has no plaintext code.
3. The single device code secure execution and interaction method of claim 1, wherein the code execution result displayable or processable by the processing interface is a ciphertext, and the ciphertext comprises an encrypted and/or randomly obfuscated code function and a variable parameter corresponding to the code function.
4. The single device code secure execution and interaction method of claim 1, wherein steps (two) and (three) are repeated a plurality of times until the associated code ciphertext is completely ciphertext transcoding.
5. A single-device code security execution and interaction system is characterized by comprising a display screen, a processing interface, a man-machine interaction and operation system, wherein the operation system is provided with an encryption file system, a function call interception plug-in module and an encryption module,
a user uses an operating system of a single device to send a code dynamic secret culture security execution request to a file system of the user, wherein the code comprises a code plaintext and/or a code ciphertext, and the security execution request comprises a request for the file system to encode and encrypt the code plaintext or/and convert the code ciphertext into the code ciphertext to dynamically generate the code ciphertext;
the file system sends a request for carrying out coding encryption on the code plaintext or carrying out ciphertext coding conversion on the code ciphertext to an encryption module of the operating system, and simultaneously sends the code plaintext or the ciphertext to the encryption module;
the encryption module carries out coding encryption on the code plaintext or carries out ciphertext coding conversion on the code ciphertext and then returns the converted executable code ciphertext to the operating system;
the operating system processes and executes the executable code ciphertext to obtain a ciphertext of a code execution result;
before the cipher text of the code execution result is pushed to a user or a related processing interface, the operating system firstly puts forward a cipher text code conversion request for the cipher text of the code execution result to an encryption module and sends the cipher text of the code execution result to the encryption module; the operating system simultaneously intercepts images and/or character codes to be displayed or processed by other relevant processing interfaces;
the encryption module performs ciphertext coding conversion on the ciphertext of the code execution result and then returns the ciphertext of the converted code execution result to the operating system;
the operating system fuses the ciphertext of the unconverted code execution result and the ciphertext of the converted code execution result to generate a code execution result which corresponds to the user code safe execution request and can be displayed or processed by other related interfaces, and a display screen of the single device displays the code execution result or/and the code execution result processed by the related interfaces;
the fusion result sent to the display screen or the processing interface is disposable, the binary codes of the fusion, interaction and execution results after refreshing are different every time, and the semantics of the content seen by the user or received by the processing interface are understandable and unchangeable; the code in the display screen or the interface is processed safely, including no complete real code, no clear code man-machine interaction, execution result token safety measure, the whole execution effect of the operating system is equivalent to the correctness of the original clear code: the computer executes the code 'right', the man-machine interaction 'right', and the 'right' is equal to 'the encryption module can confirm' or 'the human can understand'.
6. The single device code secure execution and interaction system of claim 5, wherein the code is a ciphertext, the ciphertext including the code function and a variable parameter corresponding to the code function is securely executable, and the memory has no plaintext code even if the computer CPU does not have access to the plaintext code.
7. The single device code secure execution and interaction system of claim 5, wherein the code execution result displayable or processable by the processing interface is a ciphertext comprising an encrypted and/or randomly obfuscated code function and a variable parameter corresponding to the code function.
8. The single device code secure execution and interaction system of claim 5, wherein the file system proposes, to an encryption module disposed in the single device memory, an executable code ciphertext after a request to encrypt the code plaintext or to transform the code ciphertext into a ciphertext code, and returns the executable code ciphertext to the operating system and repeats the operations for a plurality of times until the code ciphertext is completely transformed into the ciphertext code.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1961525A (en) * | 2003-05-02 | 2007-05-09 | 吉瑞泰克有限公司 | Pervasive, user-centric network security enabled by dynamic datagram switch and an on-demand authentication and encryption scheme through mobile intelligent data carriers |
CN103761456A (en) * | 2013-10-12 | 2014-04-30 | 利尔达科技集团股份有限公司 | Anti-cracking method for core code of singlechip |
CN104166822A (en) * | 2013-05-20 | 2014-11-26 | 阿里巴巴集团控股有限公司 | Data protecting method and device |
CN104885093A (en) * | 2012-12-12 | 2015-09-02 | 思杰系统有限公司 | Encryption-based data access management |
CN105704149A (en) * | 2016-03-24 | 2016-06-22 | 国网江苏省电力公司电力科学研究院 | Safety protection method for power mobile application |
-
2017
- 2017-11-22 CN CN201711169338.XA patent/CN109858241B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1961525A (en) * | 2003-05-02 | 2007-05-09 | 吉瑞泰克有限公司 | Pervasive, user-centric network security enabled by dynamic datagram switch and an on-demand authentication and encryption scheme through mobile intelligent data carriers |
CN104885093A (en) * | 2012-12-12 | 2015-09-02 | 思杰系统有限公司 | Encryption-based data access management |
CN104166822A (en) * | 2013-05-20 | 2014-11-26 | 阿里巴巴集团控股有限公司 | Data protecting method and device |
CN103761456A (en) * | 2013-10-12 | 2014-04-30 | 利尔达科技集团股份有限公司 | Anti-cracking method for core code of singlechip |
CN105704149A (en) * | 2016-03-24 | 2016-06-22 | 国网江苏省电力公司电力科学研究院 | Safety protection method for power mobile application |
Non-Patent Citations (3)
Title |
---|
云计算中数据存储安全的研究;吕琴;《贵州大学学报( 自然科学版)》;20141231;全文 * |
分布式控制系统在线升级技术的研究与实现;金浩;《中国优秀硕士学位论文全文数据库 信息科技辑》;20060815;全文 * |
基于代理重加密的云存储密文访问控制方案;郎讯;《计算机应用》;20140310;全文 * |
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