CN110502913A - A kind of method that symmetrical hash obscures content - Google Patents
A kind of method that symmetrical hash obscures content Download PDFInfo
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- CN110502913A CN110502913A CN201910776555.8A CN201910776555A CN110502913A CN 110502913 A CN110502913 A CN 110502913A CN 201910776555 A CN201910776555 A CN 201910776555A CN 110502913 A CN110502913 A CN 110502913A
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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
- G06F21/60—Protecting data
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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
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
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- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
The present invention relates to computer technology technical fields, more particularly to a kind of symmetrical hash obscures the method for content, content is cut into the block or individual of equal sizes according to its feature first, then generate one section according to user password hash and obscure instruction, by after cutting block or individual rearranged according to instruction complete to obscure in original.If input error password can obtain the content of mistake when reduction, otherwise correct, passively obscure to realize, i.e., can all obtain anyway as a result, but only possess original contents ability judging result and whether raw content consistent, result will not be prompted whether correct.This method obscure it is high-efficient, it is easy to use, have and uniqueness and be difficult to crack, compared with other obscure encryption method, this method can keep original contents constant, only reversing of position or sequence, not add new feature and new content to content, and easy to use.
Description
Technical field
The present invention relates to a kind of methods that computer technology technical field more particularly to symmetrical hash obscure content.
Background technique
Have a large amount of encryptions or obfuscation in computer field, a part of technical notes the phase of decryption or reduction
Feature is closed, these technologies are easy to be cracked, and another part, which has lost initial data to improve safety, realizes these technologies,
These complicated technology realizations, principle have professional, radical change original contents, it is difficult to understand.
The prior art can be obscured according to key or encrypt original document, but change the data structure or original contents of file
Cause certain information to lose or can not normally be opened, and new feature can be added to the content after encrypting or obscuring, is easy
It is found or reduction is cracked according to feature.
Therefore, the method for content is obscured we have proposed a kind of symmetrical hash for solving the above problems.
Summary of the invention
The purpose of the present invention is to solve disadvantage existing in the prior art, and in a kind of symmetrical hash proposed obscures
The method of appearance.
To achieve the goals above, present invention employs following technical solutions:
The method that a kind of symmetrical hash proposed by the present invention obscures content, comprising the following steps:
S1: the object obscured is needed according to the feature analysis of object, it is divided into the block of equivalent size；
S2: obtaining a set of distribution method by parameter, and this method generates the number that total length is block total quantity using a certain feature as parameter
Column, and the number in an ordered series of numbers is assigned for each piece after segmentation；
S3: be arranged one or more parameters be can the formula of inverse operator be used to adjust the state of ordered series of numbers and generate new ordered series of numbers, newly to count
The sequence of column rearranges block, and so far process of obfuscation is completed；
S4: when needing to restore, formula reversion is inversely calculated, success can be restored.
Preferably, in the S2, a certain feature refers to one of password, fingerprint or vocal print or a variety of.
Preferably, in the S2, each of ordered series of numbers number is not reproducible and has uniqueness.
Preferably, in the S3, parameter refers to one of password, fingerprint or vocal print or a variety of.
Preferably, in the S3, the state for adjusting ordered series of numbers is one of position or sequence of ordered series of numbers or a variety of.
Compared with prior art, the beneficial effects of the present invention are:
1. information is complete, sequence or the position of the content in file are only adjusted, does not add change data structure.
2. easy to use, by computer programming can simple realization this method, can be according to a set of instruction generation scheme pair
Multimedia messages are handled, and treatment process is fast, are restored high-quality.
3. safe and reliable, this method does not record any feature and data, keeps content itself reliable and obscure to go back old password
Uniquely.
4. can transporting, this method obscure after file still can be taken as normal file open, transmission, keep original text
Part structure.
Detailed description of the invention
Fig. 1 is embodiment schematic diagram proposed by the present invention.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail." quality, concentration, temperature
What degree, time or other values or parameter were limited with range, preferred scope or a series of upper limit preferred values and lower preferable values
When Range Representation, this be should be understood as specifically disclosing by any range limit or preferred value and any range lower limit or preferably
Any pairing of value is formed by all ranges, regardless of whether the range separately discloses.
The embodiment of the present invention proposes a kind of method that symmetrical hash obscures content, comprising the following steps:
Step 1: it, is divided into the block of equivalent size by the object for being needed to obscure according to the feature analysis of object.
Step 2: writing a set of distribution method, this method for parameter, is generated total with a certain feature (password, fingerprint, vocal print)
Length is the ordered series of numbers of block total quantity, assigns the number in an ordered series of numbers for each piece after segmentation, each of ordered series of numbers number is not
It repeats and there is uniqueness.
Step 3: write one or more parameters be can the formula of inverse operator be used to adjust the position of ordered series of numbers or sequence and generate
New ordered series of numbers rearranges block with the sequence of new ordered series of numbers, and so far process of obfuscation is completed.
In addition, formula reversion is inversely calculated, success can be restored when needing to restore.
The realization for a kind of method that symmetrical hash obscures content referring to attached drawing figure one, be characterized by block of pixels, according to
The Internal Code of each of password character be parameter, adjust block of pixels position and sequence, thus realize image obscure with also
The realization process of original, attached drawing one is as follows:
User inputs password: 19970823 pairs of images are obscured, and obfuscator is instructed according to password generated, and it is big that image is cut into 4*4
Small segment (16384 pieces) generates instruction according to the quantity of block and the relationship of user password and resequences to original image, then benefit
It is restored with password 19970823, obtains original image, and another demonstration is then using password 19971225, image is still chaotic
It is shapeless, so going back primary failure.
It is whether correct without any active prompt reduction in reduction process, it needs to compare or know by original image
Dawn original image can judge whether to restore successfully.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of method that symmetrical hash obscures content, which comprises the following steps:
S1: the object obscured is needed according to the feature analysis of object, it is divided into the block of equivalent size；
S2: obtaining a set of distribution method by parameter, and this method generates the number that total length is block total quantity using a certain feature as parameter
Column, and the number in an ordered series of numbers is assigned for each piece after segmentation；
S3: be arranged one or more parameters be can the formula of inverse operator be used to adjust the state of ordered series of numbers and generate new ordered series of numbers, newly to count
The sequence of column rearranges block, and so far process of obfuscation is completed；
S4: when needing to restore, formula reversion is inversely calculated, success can be restored.
2. the method that a kind of symmetrical hash according to claim 1 obscures content, which is characterized in that a certain in the S2
Feature refers to one of password, fingerprint or vocal print or a variety of.
3. the method that a kind of symmetrical hash according to claim 1 obscures content, which is characterized in that in the S2, the number
Each of column number is not reproducible and has uniqueness.
4. the method that a kind of symmetrical hash according to claim 1 obscures content, which is characterized in that in the S3, parameter
Refer to one of password, fingerprint or vocal print or a variety of.
5. the method that a kind of symmetrical hash according to claim 1 obscures content, which is characterized in that in the S3, adjustment
The state of ordered series of numbers is one of position or sequence of ordered series of numbers or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910776555.8A CN110502913A (en) | 2019-08-22 | 2019-08-22 | A kind of method that symmetrical hash obscures content |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776555.8A CN110502913A (en) | 2019-08-22 | 2019-08-22 | A kind of method that symmetrical hash obscures content |
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| CN110502913A true CN110502913A (en) | 2019-11-26 |
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| CN201910776555.8A Pending CN110502913A (en) | 2019-08-22 | 2019-08-22 | A kind of method that symmetrical hash obscures content |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787814A (en) * | 2021-01-20 | 2021-05-11 | 四川湖山电器股份有限公司 | Upper computer communication encryption method and system |
| CN113268769A (en) * | 2021-05-25 | 2021-08-17 | 平安普惠企业管理有限公司 | Method, system and storage medium for processing biological characteristic data based on random confusion |
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| CN113268769A (en) * | 2021-05-25 | 2021-08-17 | 平安普惠企业管理有限公司 | Method, system and storage medium for processing biological characteristic data based on random confusion |
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Application publication date: 20191126 |
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