CN106817220A - A kind of method of encryption of communicated data, device and encryption device - Google Patents
A kind of method of encryption of communicated data, device and encryption device Download PDFInfo
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- CN106817220A CN106817220A CN201510857538.9A CN201510857538A CN106817220A CN 106817220 A CN106817220 A CN 106817220A CN 201510857538 A CN201510857538 A CN 201510857538A CN 106817220 A CN106817220 A CN 106817220A
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Classifications
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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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
- H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0846—Network architectures or network communication protocols for network security for authentication of entities using passwords using time-dependent-passwords, e.g. periodically changing passwords
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
Abstract
The present invention provides a kind of method of encryption of communicated data, device and encryption device, is related to field of communication security, to solve the problems, such as that encryption file is easily cracked, the wherein method of encryption of communicated data, including:Construct multiple first random numbers;According to the numerical value of the multiple first random number, the multiple first keys of generation;According to the multiple first key, final encryption key is generated;According to the final encryption key, the original data to carrying out user terminal are encrypted, the data after being encrypted.
Description
Technical field
The present invention relates to field of communication security, more particularly to a kind of method of encryption of communicated data, device and
Encryption device.
Background technology
At present, for PC (personal computer, PC)
Data method and encryption lock between, typically there is following processing mode:
(1) in plain text by data interception after, easy intercepted data content, encryption lock is easy to be cracked;
(2) key of encrypting plaintext is simple, is also easily cracked.
Also, above two mode does not have verifying function, decryption can be caused to malfunction, and after error is decrypted
When data are sent to upper layer application, in fact it could happen that system exception, or even there is production accident.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of method of encryption of communicated data, device and encryption device,
To solve the problems, such as that encryption file is easily cracked.
To achieve these goals, the method for a kind of encryption of communicated data provided in an embodiment of the present invention, including:
Construct multiple first random numbers;
According to the numerical value of the multiple first random number, the multiple first keys of generation;
According to the multiple first key, final encryption key is generated;
According to the final encryption key, the original data to carrying out user terminal are encrypted,
Data after being encrypted.
Further, multiple first random numbers of the construction in predetermined number range, specially:
Multiple first random numbers of the construction in predetermined number range.
Further, it is described according to the final encryption key, the original data to carrying out user terminal
It is encrypted, the data after being encrypted, specially:
According to the final encryption key and the second random number set in advance, the original to carrying out user terminal
File data is encrypted, the data after being encrypted.
Wherein, the method for described encryption of communicated data is right described according to the final encryption key
The original data for carrying out user terminal are encrypted, and after the data after being encrypted, also include:
Preserve the original data of encryption, corresponding final encryption key, the corresponding final encryption
The corresponding first key of key and the second random number;
According to the corresponding final encryption key, the corresponding final encryption key corresponding first
Key and the second random number, the original data to encrypting are decrypted.
Wherein, the method for described encryption of communicated data, according to the final encryption key, to using by oneself
The original data of family terminal are encrypted, and after the data after being encrypted, methods described also includes:
The data form of the original data to encrypting is changed.
Wherein, the method for described encryption of communicated data, the data of the original data after encrypting at described Dui
After form is changed, methods described also includes:
Preset byte value in the original data of the encryption after conversion is verified;
When mistake occurs in the preset byte value, a request for retransmitting the original data is produced, and will
The request is sent to the user terminal.
The embodiment of the present invention also provides a kind of device of encryption of communicated data, including:
Constructing module, for constructing multiple first random numbers;
First generation module, for the numerical value according to the multiple first random number, the multiple first keys of generation;
Second generation module, for according to the multiple first key, generating final encryption key;
Encrypting module, for according to the final encryption key, the original data to carrying out user terminal
It is encrypted, the data after being encrypted.
Further, the constructing module includes:
Structural unit, for constructing multiple first random numbers in predetermined number range.
Further, the encrypting module includes:
Ciphering unit, for according to the final encryption key and the second random number set in advance, to coming
The original data of user terminal are encrypted, the data after being encrypted.
Wherein, the device of described encryption of communicated data also includes:
Preserving module, the original data for preserving encryption are corresponding final encryption key, described right
The final corresponding first key of encryption key and the second random number answered;
Deciphering module, for according to the corresponding final encryption key, the corresponding final encryption
The corresponding first key of key and the second random number, the original data to encrypting are decrypted.
Wherein, the device of described encryption of communicated data also includes:
Modular converter, the data form for the original data to encrypting is changed.
Wherein, the device of described encryption of communicated data also includes:
Correction verification module, verifies for the preset byte value in the original data to the encryption after conversion;
Generation module, for when mistake occurs in the preset byte value, producing one to retransmit the original text number of packages
According to request, and the request is sent to the user terminal.
The embodiment of the present invention also provides a kind of encryption device, wherein, such as the device of above-mentioned encryption of communicated data.
The above-mentioned technical proposal of the embodiment of the present invention has the beneficial effect that:
It is close further according to first by the numerical generation first key of random number in the scheme of the embodiment of the present invention
Key, generates final encryption key, that is, the numerical value of random number is encrypted twice, so can be with profit
The difficulty cracked with the randomness of encryption key, enhancing encryption, it is ensured that the security of the communication information.
Brief description of the drawings
Fig. 1 is one of flow chart of method of encryption of communicated data of the embodiment of the present invention;
Fig. 2 is one of flow chart of method of encryption of communicated data of the embodiment of the present invention;
Fig. 3 is a structural representation of the device of the encryption of communicated data of the embodiment of the present invention;
Fig. 4 is another structural representation of the device of the encryption of communicated data of the embodiment of the present invention.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
As shown in figure 1, the method for the encryption of communicated data of the embodiment of the present invention, including:
Step 101, constructs multiple first random numbers.
Here the first random number is any natural number, and difficulty is cracked with strengthen encryption key, is prevented
Using fixed cipher mode, easily by the problem of repeatedly capture decryption.
Step 102, according to the numerical value of the multiple first random number, the multiple first keys of generation.
Here first key is the numerical value of multiple first random numbers, is calculated by conventional algorithm, is obtained
The key for arriving, need not so add new algorithm, reduce the complexity that new algorithm user uses.Wherein
The conventional algorithm includes DES (Data Encryption Standard, data encryption standards), 3DES
(Triple DES, triple DEAs), IDEA (International Data Encryption
Algorithm, IDEA), DSA (Digital Signature Algorithm, digital signature
Algorithm) and AES (Advanced Encryption Standard, Advanced Encryption Standard) in one kind or many
Plant algorithm.But herein and it is not construed as limiting, therefore is applied to other AESs of the embodiment of the present invention, belongs to
In the protection domain of the embodiment of the present invention.
Step 103, according to the multiple first key, generates final encryption key.
Here multiple first keys, the final encryption key of correspondence generation, after then recycling encryption are encrypted
Key encrypts original data, can improve the security of communication data.
Step 104, according to the final encryption key, the original data to carrying out user terminal are carried out
Encryption, the data after being encrypted.
It is raw further according to first key by the numerical generation first key of random number in the embodiment of the present invention
Into final encryption key, that is, the numerical value of random number is encrypted twice, so can be using encryption
The randomness of key, the difficulty that enhancing encryption is cracked, it is ensured that the security of the communication information.
In the method for embodiment of the present invention encryption of communicated data, step 101 is specially:Construction is located at predetermined
Multiple first random numbers in number range.Wherein described predetermined number range be in 8Bit bytes extremely
In the range of 1024Bit bytes, wherein the predetermined number range refers to the length of random number, it is described with
Machine number includes the first random number and the second random number.So can not only ensure the intensity of key, and ensure
Space shared by key is smaller, and then reduces communication load.
As shown in Fig. 2 in the method for embodiment of the present invention encryption of communicated data, step 104 is specially:Step
Rapid 1041, according to the final encryption key and the second random number set in advance, to from user's end
The original data at end are encrypted, the data after being encrypted.Wherein, described set in advance
Two random numbers are the random number of the predetermined number range, so by adding in the initial data to being input into
Enter multiple second random numbers, to the plaintext crossed through the stronger first key of randomness and final encryption key
(that is, original data) are encrypted, enhance interceptor decryption interference, and then strengthen crack it is close
The difficulty of key, to strengthen the security of communication.
The method of embodiment of the present invention encryption of communicated data, after step 104, methods described also includes:
Step 105, preserves the original data of encryption, corresponding final encryption key, described corresponding final
The corresponding first key of encryption key and the second random number;
Step 106, according to the corresponding final encryption key, the corresponding final encryption key
Corresponding first key and the second random number, the original data to encrypting are decrypted.
By the final encryption key, the corresponding final encryption key corresponding first that preserve encryption
Key and the second random number, can so utilize symmetrical decryption or preserved encryption key, first key,
Second random number carries out the decryption of data, improves the efficiency of decryption.
The method of the encryption of communicated data of the embodiment of the present invention, after step 104, methods described also includes:
Step 107, the data form of the original data to encrypting is changed.So enter by by encrypt two
The data of BIN files processed carry out the conversion of data form, original data can be converted into required number
According to form, the compatibility and versatility of original data are improve.
The method of the encryption of communicated data of the embodiment of the present invention, after step 107, methods described also includes:
Step 108, verifies to the preset byte value in the original data of the encryption after conversion.Wherein, in advance
If byte value can be any byte value verified according to user's request, it is to verify encryption or repeating transmission
No success.The preferred preset byte value of the embodiment of the present invention be first character section value or last byte value, can
With the first numerical value set to first character section value or last byte value, first numerical value is any number;
If the numerical value of verification is different from the first numerical value for setting, illustrate that verification encryption is unsuccessful, conversely, verification
Encrypt successfully, so conveniently check the result of verification, and avoid the occurrence of failed encryption and trigger production accident
Problem.
Step 109, when mistake occurs in the preset byte value, produces one to retransmit the original data
Request, and the request is sent to the user terminal.There is mistake and refers to and set in the preset byte value
The first numerical value put is different or abnormality occurs, wherein, the abnormality is no numerical value, so
Need to require to obtain and encrypt original data again, the encryption that can so improve encryption original data has
Effect property.
As shown in figure 3, the embodiment of the present invention also provides a kind of device of encryption of communicated data, including:
Constructing module 301, for constructing multiple first random numbers.
First generation module 302, for the numerical value according to the multiple first random number, generation multiple first
Key.
Second generation module 303, for according to the multiple first key, generating final encryption key.
Encrypting module 304, for according to the final encryption key, the original to carrying out user terminal
Data are encrypted, the data after being encrypted.
It is raw further according to first key by the numerical generation first key of random number in the embodiment of the present invention
Into final encryption key, that is, the numerical value of random number is encrypted twice, so can be using encryption
The randomness of key, the difficulty that enhancing encryption is cracked, it is ensured that the security of the communication information.
It should be noted that the device that the present invention is provided is the device using the method for above-mentioned encryption of communicated data,
Then all embodiments of the method for above-mentioned encryption of communicated data be applied to the device, and can reach it is identical or
Similar beneficial effect.
As shown in figure 4, in the device of the encryption of communicated data of further embodiment of this invention, the constructing module
301 include:
Structural unit, for constructing multiple first random numbers in predetermined number range.
In the device of the encryption of communicated data of further embodiment of this invention, the encrypting module 304 includes:
Ciphering unit 3041, for according to the final encryption key and the second random number set in advance,
Original data to carrying out user terminal are encrypted, the data after being encrypted.
The device of the encryption of communicated data of further embodiment of this invention also includes:
Preserving module 305, the original data for preserving encryption, corresponding final encryption key, institute
State the corresponding first key of corresponding final encryption key and the second random number.
The device of the encryption of communicated data of further embodiment of this invention also includes:
Deciphering module 306, for according to the final encryption key, the final encryption key correspondence
First key and the second random number, the original data to encrypting are decrypted.
The device of the encryption of communicated data of further embodiment of this invention also includes:
Modular converter, the data form for the original data to encrypting is changed.
The device of the encryption of communicated data of further embodiment of this invention also includes:
Correction verification module, verifies for the preset byte value in the original data to the encryption after conversion.
Generation module, for when mistake occurs in the preset byte value, producing one to retransmit the original text number of packages
According to request, and the request is sent to the user terminal.
The embodiment of the present invention also provides a kind of encryption device, such as the device of above-mentioned encryption of communicated data.
The encryption device can be softdog, i.e. PC (personal computer, personal computer) with plus
Encryption of communicated data between close dog.By the first random number for changing, final encryption key is generated,
And the second random number for changing is added in original data, even if such Content of Communication is trapped, due to
The difference of each encryption key, the difficulty of encryption file is cracked increased.Can also add in original
Enter to confirm field, in communication process, when having contents lost, by confirming field, the number of times can be abandoned
According to, it is desirable to resend data.
The device of the corresponding encryption of communicated data due to the embodiment of the present invention, is applied to encryption device, therefore,
The embodiment of the present invention additionally provides a kind of encryption device, wherein, the device of above-mentioned encryption of communicated data it is described
Realize that embodiment suitable for the embodiment of the encryption device, can also reach identical technique effect.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (13)
1. a kind of method of encryption of communicated data, it is characterised in that including:
Construct multiple first random numbers;
According to the numerical value of the multiple first random number, the multiple first keys of generation;
According to the multiple first key, final encryption key is generated;
According to the final encryption key, the original data to carrying out user terminal are encrypted,
Data after being encrypted.
2. the method for encryption of communicated data as claimed in claim 1, it is characterised in that the construction position
In multiple first random numbers in predetermined number range, specially:
Multiple first random numbers of the construction in predetermined number range.
3. the method for encryption of communicated data as claimed in claim 1, it is characterised in that described according to institute
Final encryption key is stated, the original data to carrying out user terminal are encrypted, after being encrypted
Data, specially:
According to the final encryption key and the second random number set in advance, the original to carrying out user terminal
File data is encrypted, the data after being encrypted.
4. the method for encryption of communicated data as claimed in claim 3, it is characterised in that in the basis
The final encryption key, the original data to carrying out user terminal are encrypted, and are encrypted
After data afterwards, also include:
Preserve the original data of encryption, corresponding final encryption key, the corresponding final encryption
The corresponding first key of key and the second random number;
According to the corresponding final encryption key, the corresponding final encryption key corresponding first
Key and the second random number, the original data to encrypting are decrypted.
5. the method for the encryption of communicated data as described in any one of Claims 1-4, it is characterised in that
According to the final encryption key, the original data to carrying out user terminal are encrypted, obtain
After data after encryption, methods described also includes:
The data form of the original data to encrypting is changed.
6. the method for encryption of communicated data as claimed in claim 5, it is characterised in that at described pair plus
After the data form of the original data after close is changed, methods described also includes:
Preset byte value in the original data of the encryption after conversion is verified;
When mistake occurs in the preset byte value, a request for retransmitting the original data is produced, and will
The request is sent to the user terminal.
7. a kind of device of encryption of communicated data, it is characterised in that including:
Constructing module, for constructing multiple first random numbers;
First generation module, for the numerical value according to the multiple first random number, the multiple first keys of generation;
Second generation module, for according to the multiple first key, generating final encryption key;
Encrypting module, for according to the final encryption key, the original data to carrying out user terminal
It is encrypted, the data after being encrypted.
8. the device of encryption of communicated data as claimed in claim 7, it is characterised in that the construction mould
Block includes:
Structural unit, for constructing multiple first random numbers in predetermined number range.
9. the device of encryption of communicated data as claimed in claim 7, it is characterised in that the encryption mould
Block includes:
Ciphering unit, for according to the final encryption key and the second random number set in advance, to coming
The original data of user terminal are encrypted, the data after being encrypted.
10. the device of encryption of communicated data as claimed in claim 9, it is characterised in that described device is also
Including:
Preserving module, the original data for preserving encryption are corresponding final encryption key, described right
The final corresponding first key of encryption key and the second random number answered;
Deciphering module, for according to the corresponding final encryption key, the corresponding final encryption
The corresponding first key of key and the second random number, the original data to encrypting are decrypted.
The device of 11. encryption of communicated data as described in any one of claim 7 to 10, it is characterised in that
Described device also includes:
Modular converter, the data form for the original data to encrypting is changed.
The device of 12. encryption of communicated data as claimed in claim 11, it is characterised in that described device
Also include:
Correction verification module, verifies for the preset byte value in the original data to the encryption after conversion;
Generation module, for when mistake occurs in the preset byte value, producing one to retransmit the original text number of packages
According to request, and the request is sent to the user terminal.
13. a kind of encryption devices, it is characterised in that communicate number as described in any one of claim 7 to 12
According to the device of encryption.
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CN201510857538.9A CN106817220A (en) | 2015-11-30 | 2015-11-30 | A kind of method of encryption of communicated data, device and encryption device |
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CN201510857538.9A CN106817220A (en) | 2015-11-30 | 2015-11-30 | A kind of method of encryption of communicated data, device and encryption device |
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Cited By (1)
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CN112260833A (en) * | 2020-12-21 | 2021-01-22 | 湖南航天捷诚电子装备有限责任公司 | Server with remote encryption function and encryption method |
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