WO2014044137A1 - 通信的加密和解密的方法、装置及系统 - Google Patents
通信的加密和解密的方法、装置及系统 Download PDFInfo
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- WO2014044137A1 WO2014044137A1 PCT/CN2013/083291 CN2013083291W WO2014044137A1 WO 2014044137 A1 WO2014044137 A1 WO 2014044137A1 CN 2013083291 W CN2013083291 W CN 2013083291W WO 2014044137 A1 WO2014044137 A1 WO 2014044137A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
Definitions
- the present invention relates to the field of information processing, and in particular, to a method, device and system for encrypting and decrypting communications. Background of the invention
- the communication information between the client and the server used by the user must be fully encrypted to prevent user information from leaking.
- Currently commonly used encryption algorithms are
- a method of encrypting communications including:
- a method for decrypting communications characterized in that it comprises:
- a communication encryption device comprising:
- An extracting unit configured to: extract a first character string to be encrypted from the information to be sent; and a converting unit, configured to convert the first character string obtained by the extracting unit into a first plurality of binary numbers for storage;
- An encryption unit configured to encrypt the stored first plurality of binary numbers according to a preset encryption algorithm to generate a second plurality of binary numbers
- the converting unit is further configured to convert the second plurality of binary numbers into a string to be sent;
- a coding unit configured to transmit and encode a to-be-sent character string generated by the conversion unit
- a sending unit configured to send the coding result generated by the coding unit
- a device for decrypting communication characterized in that it comprises:
- a receiving unit configured to receive to-be-processed information sent by the sending end
- a decoding unit configured to perform transmission decoding on the to-be-processed information received by the receiving unit, to obtain a first character string
- a converting unit configured to convert the first string into a first plurality of binary numbers for storage
- a decrypting unit configured to decrypt the stored first plurality of binary numbers according to a preset decryption algorithm to generate a second plurality of binary numbers
- the converting unit is further configured to convert the second plurality of binary numbers into a second character string.
- a system for encrypting and decrypting communications including the encrypted device of the above communication and the decrypted device of the above communication.
- Embodiments of the present invention provide a method, device, and system for encrypting and decrypting communications, by converting information to be transmitted into binary numbers for storage, and then encrypting or decrypting the stored information, and then deriving the encrypted result or the decrypted result. And converted to a string to use The process of implementing encryption and decryption.
- FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention
- FIG. 2 is a structural diagram of a computing device according to an embodiment of the present invention.
- FIG. 3 is a flowchart of a method for encrypting communications according to an embodiment of the present invention
- FIG. 4 is a flowchart of another method for encrypting communications according to an embodiment of the present invention
- FIG. FIG. 6 is a flowchart of a method for decrypting communication according to an embodiment of the present invention
- FIG. 7 is a flowchart of another method for decrypting communication according to an embodiment of the present invention
- 8 is a flowchart of a method for decrypting another communication according to an embodiment of the present invention
- FIG. 9 is a block diagram of a device for encrypting communication according to an embodiment of the present invention
- FIG. 10 is another schematic diagram of an embodiment of the present invention.
- FIG. 11 is a block diagram of a device for encrypting another communication according to an embodiment of the present invention
- FIG. 12 is a block diagram of a device for decrypting a communication according to an embodiment of the present invention
- FIG. 13 is a block diagram of a device for decrypting another communication according to an embodiment of the present invention
- FIG. 14 is a block diagram of another device for decrypting communication according to an embodiment of the present invention
- Figure 15 is a block diagram of a system for encrypting and decrypting communications according to an embodiment of the present invention. Mode for carrying out the invention
- the communication system includes a server device 10, a communication network 20, and a user terminal device.
- the user terminal device may be a personal computer 30, a mobile phone 40, a tablet computer 50, or other various mobile internet terminals (MIDs), such as an e-reader, a palm game terminal, or the like that can connect to the Internet using various wireless communication technologies.
- MIDs mobile internet terminals
- Both the server device and the user terminal device can apply the encryption and decryption methods of the embodiment of the present invention.
- the devices that implement the encryption and decryption methods are collectively referred to as computing devices or computers.
- the computing device to which the encryption method is applied is a server
- the computing device that decrypts the encrypted information of the server using the decryption method may be a user terminal, and vice versa.
- FIG. 2 is a block diagram showing the structure of a computing device of an embodiment.
- computer 200 may be a computing device capable of implementing the methods and software systems provided by embodiments of the present invention.
- the computer 200 can be a personal computer or a portable device such as a laptop, tablet, cell phone or smartphone, and the like.
- the computer 200 can also be a server connected to the above device via a network.
- Computer 200 can have different capabilities and features. Various possible implementations are within the scope of this article.
- computer 200 can include a keypad/keyboard 256, and can also include a display 254, such as a liquid crystal display (LCD), or a display with advanced features, such as a touch sensitive 2D or 3D display.
- a web-enabled computer 200 can include one or more physical or virtual keyboards, as well as mass storage device 230.
- the computer 200 may also include or allow various operating systems 241, such as a WindowsTM or LinuxTM operating system, or a mobile operating system, such as iOSTM, AndroidTM, or Windows MobileTM, etc.
- Computer 200 can include or run various applications 242, such as communication encryption/decryption application 245.
- Application 242 is capable of communicating encryptedly with other devices over a network.
- computer 200 can include one or more processor readable non-volatile storage media 230 and one or more processors 222 in communication with storage medium 230.
- the processor readable non-volatile storage medium 230 can be a RAM, a flash memory, a ROM, an EPROM, an EEPROM, a register, a hard disk, a removable hard disk, a CD-ROM, or other various forms of non-volatile storage media.
- Storage medium 230 may store a series of instructions or units and/or modules containing instructions for performing the operations of various embodiments of the present invention.
- the processor can execute the above instructions to perform the operations in the various embodiments.
- the embodiment of the invention provides a method for encrypting communication, which can be applied to a computing device based on WEB communication, for example, a client device such as a mobile phone or a tablet computer, and a server device such as a server of an operator or a service provider.
- a computing device based on WEB communication for example, a client device such as a mobile phone or a tablet computer, and a server device such as a server of an operator or a service provider.
- the computing devices of the two communication parties need to respectively set at least one encryption module and at least one decryption module or communication encryption/decryption application.
- the communication encryption/decryption application can be implemented using Javascript.
- FIG. 3 is a schematic diagram of an encryption method for communication according to an embodiment of the present invention.
- the method is a method of encrypting a module side, and may include the following steps.
- the information to be sent is information that is sent by the client device to the server device, and may include user information for logging in services, such as a user name and a password, and may also include data information of a certain WEB service, and the information may be
- the encrypted information may also be unencrypted information, which is not limited in this embodiment of the present invention.
- the information to be sent can be stored in the form of JSON (JavaScript Object Notation), for example, [object Object] : ⁇ "nick”: "Preference Share” ⁇ . Therefore The first string ⁇ "nick”: "self-selected stock” ⁇ can be directly extracted from the information to be sent.
- JSON JavaScript Object Notation
- a specific implementation method for converting the first character string into a first plurality of binary numbers for storage may be as shown in FIG. 4.
- the method can include the following steps.
- each character in the second string corresponds to one byte.
- information is stored as a string, which may contain information such as English letters, English symbols, Chinese characters, Chinese characters, etc., and single Chinese characters are mostly multi-byte characters.
- the encoded value corresponding to a single Chinese character requires more than one byte of storage space.
- step 3021 The purpose of the conversion of step 3021 is to convert the characters whose corresponding encoded values need to occupy more than one byte of storage space into a plurality of characters whose corresponding encoded values occupy only one byte of storage space for subsequent encryption processing.
- the first string can be stored in Unicode encoding, and the first string can be converted to a second string using UTF-8 encoding.
- the first string is "nick”: "Preference Share”
- the corresponding second string is ' ' ⁇ ": “ :]: €%. , ⁇ ".
- the above coding method is only an example, and other embodiments may adopt other feasible coding methods, which are not limited herein.
- the one element in the first character array corresponds to a single-byte encoded value of one character in the second character string.
- step 302 since step 302 is performed before step 303, in step 303, the code value corresponding to each character is directly determined.
- converting the second string into the first character array may follow an ACSII code table, for example, the second string is " ⁇ ": " :1: €%. , ⁇ " , the corresponding first character array For [123, 34, 110, 105, 99, 107, 34, 58, 34, 232, 135, 170, 233, 128, 137, 232, 130, 161, 34, 125].
- each array block includes a preset number of elements.
- the preset value is a natural number, which can be set according to actual needs. All the elements in the character array can be divided into blocks according to a preset number, and each array block has a preset number of elements.
- the dividing the elements in the character array into a plurality of array blocks may include: dividing the adjacent four elements in turn according to the order of the elements in the first character array. As an array block.
- converting the elements in each array block into 8-bit binary numbers, and storing multiple 8-bit binary numbers corresponding to each array block may include: The four elements are converted into 8-bit binary numbers, and the four 8-bit binary numbers corresponding to each array block are combined into one 32-bit binary number. A 32-bit binary number corresponding to each of the array blocks is stored.
- the preset encryption algorithm may include an encryption algorithm commonly used in current WEB services such as TEA and MD5.
- the encryption algorithms for the use of different service types to be transmitted may also differ.
- FIG. 5 is a diagram of the method of converting the second plurality of binary numbers into a string to be sent. The method can include the following steps.
- the corresponding second character array is obtained by step 3041 as [234, 109, 33, 119, 105, 146, 35, 0, 147, 240, 52, 189, 187 , 172, 109, 20, 182, 48, 131, 71, 255, 98, 83, 140, 113, 228, 59, 246, 232, 150, 55, 180 ].
- the one element in the second character array corresponds to a single-byte encoded value of one character in the string to be sent.
- the one element in the second character array corresponds to a single-byte encoded value of one character in the string to be sent.
- the converting the second character array into a string to be sent may follow the ACSII code table.
- the second character array is [234, 109, 33, 119, 105, 146, 35, 0, 147, 240, 52, 189, 187, 172, 109, 20, 182, 48, 131, 71, 255, 98, 83, 140, 113, 228, 59, 246, 232, 150, 55, 180].
- the character string to be transmitted is transmitted and encoded in step 305 in this embodiment.
- FIG. 6 is a schematic diagram of a method for decrypting communications according to an embodiment of the present invention.
- the method is a decryption module
- the side method can include the following steps.
- the information to be processed is the encrypted information sent by the encryption module.
- the information to be processed is transmitted and decoded, and the first character string needs to follow the transmission coding mode used by the encryption module.
- the encryption and decryption algorithms and the codec mode used between the two sides of the encryption module and the decryption module may be matched originally, and may also be communicated in time. This embodiment of the present invention does not limit this.
- the corresponding first string is " ⁇ m!wi, #".
- FIG. 7 is a schematic diagram of the method for converting the first character string into a first plurality of binary numbers for storage.
- the method can include the following steps.
- the one element in the first character array corresponds to a single-byte encoded value of one character in the third character string.
- converting the first character string into the first character array may follow the ACSII code table. If the first character string is " ⁇ m!wi, # ", the corresponding second character array is [234, 109, 33 , 119. 105, 146, 35, 0, 147, 240, 52, 189, 187, 172, 109, 20, 182, 48, 131, 71, 255, 98, 83, 140, 113, 228, 59, 246 , 232, 150, 55, 180].
- each array block includes a predetermined number of elements.
- the preset number can be the same as the setting of the encryption module.
- the elements in the character array are divided into several numbers.
- the chunking may include: dividing the adjacent four elements into one array block in turn according to the order of the elements in the first character array.
- each element in the array block into an 8-bit binary number, and store multiple 8-bit binary numbers corresponding to each array block.
- the elements in each array block are respectively converted into 8-bit binary numbers, and storing the corresponding 8-bit binary numbers of each array block may include: The four elements are converted into 8-bit binary numbers, and the four 8-bit binary numbers corresponding to each array block are combined into one 32-bit binary number. A 32-bit binary number corresponding to each of the array blocks is stored.
- the preset decryption algorithm should correspond to the encryption algorithm set on the encryption module side.
- Figure 8 is a method of converting the second plurality of binary numbers into a second character string. The method can include the following steps.
- the first character array in step 3031 is [234, 109, 33, 119, 105, 146 35, 0, 147, 240, 52, 189, 187, 172, 109, 20, 182, 48, 131 , 71, 255, 98, 83, 140, 113, 228, 59, 246, 232, 150, 55, 180 ], then after step 6051, the corresponding second character array is [123, 34, 110, 105, 99, 107, 34, 58, 34, 232, 135, 170, 233. 128, 137, 232, 130, 161, 34, 125].
- the one element in the second character array corresponds to a single-byte encoded value of one character in the second character string.
- converting the second character array into a second string can follow
- ACSII code table for example, if the second character array is [123, 34, 110, 105, 99, 107, 34, 58, 34, 232, 135, 170, 233, 128, 137, 232, 130, 161, 34, 125], then the second string is ''nick'':'' :j: €%. , .
- a second string of one character per character can be converted to a Unicode encoding for storage.
- the conversion method of step 606 can follow UTF-8 encoding. For example, if the second string is ' ' ⁇ ':" :]: €%. , ⁇ " , the corresponding source information corresponding to the to-be-processed information is "nick": "self-selected stock", and "nick”: "self-selected stock” can be stored in JSON form.
- the character encoding method used in the above encryption and decryption methods may be any suitable encoding method, and the encoding method used in the above example is merely an example, and may be replaced with other encoding methods.
- Embodiments of the present invention provide a method for encrypting and decrypting communications, by converting information to be transmitted into a binary number for storage, and then encrypting or decrypting the stored information, and then exporting and converting the encrypted result or the decrypted result into characters.
- the string is used to implement the process of encryption and decryption.
- the embodiment of the present invention stores the information to be transmitted into a binary number, and provides information in a binary format for the encryption algorithm, so that various encryption algorithms can also be used in the Javascript language environment. According to the specific needs of the WEB service, different encryption algorithms are used to ensure the security of user information in the javascript environment.
- FIG. 9 is a device 90 for encrypting communications according to an embodiment of the present invention.
- the apparatus may include: an extracting unit 91, a converting unit 92, an encrypting unit 93, an encoding unit 94, and a transmitting unit 95.
- the extracting unit 91 is configured to extract, from the information to be sent, the first character string to be encrypted.
- the converting unit 92 is configured to convert the first string obtained by the extracting unit 91 into a first A plurality of binary numbers are stored.
- the encryption unit 93 is configured to encrypt the stored first plurality of binary numbers according to a preset encryption algorithm to generate a second plurality of binary numbers.
- the converting unit 92 is further configured to convert the second plurality of binary numbers into a word to be sent.
- the encoding unit 94 is configured to transmit and encode the character string to be sent generated by the converting unit 92.
- the sending unit 95 is configured to send the encoding result generated by the encoding unit.
- the converting unit 92 may include: a first converting module 921, a second converting module 922, a dividing module 923, a third converting module 924, and a storage module 925.
- the first conversion module 921 is configured to convert the first character string to be encrypted into a second character string; wherein each character in the second character string corresponds to one byte.
- a second conversion module 922 configured to convert the second character string obtained by the first conversion module 921 into a first character array; wherein, one element in the first character array corresponds to one character in the second character string Single-byte encoded value.
- the segmentation module 923 is configured to divide the elements in the character array obtained by the second conversion module 922 into a plurality of array blocks; wherein each array block includes a preset number of elements.
- the third conversion module 924 is configured to convert the elements in the array block 923 into each of the array blocks into 8-bit binary numbers.
- the storage module 925 is configured to store a plurality of 8-bit binary numbers corresponding to each array block obtained by the third conversion module 923.
- the dividing module 92 may sequentially divide the adjacent 4 elements into one array block according to the order of the elements in the first character array.
- the third conversion module 794 is configured to separately convert 4 elements in each array block It is an 8-bit binary number and combines the four 8-bit binary numbers corresponding to each array block into one 32-bit binary number.
- the storage module 925 is configured to store a 32-bit binary number corresponding to each of the array blocks.
- the conversion unit 92 includes: a fourth conversion module 926 and a fifth conversion module 927.
- the fourth conversion module 926 is configured to convert every 8 adjacent binary numbers of the second plurality of binary numbers into a single-byte encoded value to generate a second character array.
- a fifth conversion module 927 configured to convert the second character array obtained by the fourth conversion module 926 into a character string to be sent; wherein, one element in the second character array corresponds to one character in the string to be sent Single-byte encoded value.
- FIG. 12 is a schematic diagram of a device 120 for decrypting communications according to an embodiment of the present invention.
- the device 120 can include:
- the receiving unit 1201 is configured to receive the to-be-processed information sent by the sending end.
- the decoding unit 1202 is configured to perform transmission decoding on the to-be-processed information received by the receiving unit 1201 to obtain a first character string.
- the converting unit 1203 is configured to convert the first string into a first plurality of binary numbers for storage
- the decrypting unit 1204 is configured to decrypt the stored first plurality of binary numbers according to a preset decryption algorithm to generate a second plurality of binary numbers;
- the converting unit 1203 is further configured to convert the second plurality of binary numbers into a second word payment.
- the converting unit 1203 may include: a first conversion module 1231, configured to convert the first character string to be decrypted into a first character array; wherein, the first An element in the character array corresponds to one of the third strings The single-byte encoded value of the characters.
- the segmentation module 1232 is configured to divide the elements in the character array obtained by the first conversion module into a plurality of array blocks according to a preset value; wherein each array block includes a predetermined number of elements.
- the second conversion module 1233 is configured to convert the elements in each array block into 8-bit binary numbers.
- the storage module 1234 is configured to store a plurality of 8-bit binary numbers corresponding to each array block.
- the segmentation module 1232 is configured to sequentially divide the adjacent four elements into one array block according to the arrangement of the elements in the first character array.
- the second conversion module 1233 is configured to convert 4 elements in each array block into 8-bit binary numbers, and combine 4 8-bit binary numbers corresponding to each array block into one 32-bit binary number. .
- the storage module 1234 is configured to store a 32-bit binary number corresponding to each array block.
- the converting unit 1203 includes: a third converting module 1235 and a fourth converting module 1236.
- the third conversion module 1235 is configured to convert every 8 adjacent binary numbers of the second plurality of binary numbers into a single-byte encoded value to generate a second character array.
- a fourth conversion module 1236 configured to convert the second character array obtained by the third conversion module 1235 into a second character string; wherein, one element in the second character array corresponds to the second character string A single-byte encoded value of one character.
- FIG. 14 is a system for encrypting and decrypting communications according to an embodiment of the present invention.
- the system may include an encrypted device 90 for communication as described above and a decrypted device 120 for communication.
- Embodiments of the present invention provide a device and system for encrypting and decrypting communications,
- the information to be sent is converted into a binary number for storage, and then the stored information is encrypted or decrypted, and the encrypted result or the decrypted result is exported and converted into a string for use, thereby implementing a process of encryption and decryption.
- the embodiment of the present invention stores the information to be transmitted into a binary number, and provides information in a binary format for the encryption algorithm, so that various encryption algorithms can be used in the Javascript language environment to ensure the security of the user information in the javascript environment. .
- the hardware modules in the various embodiments may be implemented mechanically or electronically.
- a device such as an FPGA or an ASIC, is used to perform a specific operation.
- the hardware modules may also include programmable logic devices or circuits (e.g., including general purpose processors or other programmable processors) that are temporarily configured by software for performing particular operations.
- Hardware-specific implementations either with dedicated permanent circuits or with temporarily configured circuits (as configured by software), can be implemented based on cost and time considerations.
- the present invention also provides a machine readable storage medium storing instructions for causing a machine (which may be a personal computer, server, or network device, etc.) to perform a method as described herein.
- a machine which may be a personal computer, server, or network device, etc.
- a system or apparatus equipped with a storage medium on which software program code for realizing the functions of any of the above-described embodiments is stored may be provided, and the system is The computer (or CPU or MPU) of the device or device reads and executes the program code stored in the storage medium.
- some or all of the actual operations may be performed by an operating system or the like operating on a computer based on instructions of the program code.
- Storage medium embodiments for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), Tape, non-volatile memory card and ROM.
- the program code can be downloaded from the server computer by the communication network.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/430,837 US20150244521A1 (en) | 2012-09-24 | 2013-09-11 | Communication encryption and decryption method, device and system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210358087.0A CN103684760B (zh) | 2012-09-24 | 2012-09-24 | 通信的加密和解密的方法、装置及系统 |
| CN201210358087.0 | 2012-09-24 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103684760A (zh) | 2014-03-26 |
| US20150244521A1 (en) | 2015-08-27 |
| CN103684760B (zh) | 2018-12-07 |
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