CN104244235A - Method and system for encryption and decryption of sensitive information of telecommunication call bill - Google Patents
Method and system for encryption and decryption of sensitive information of telecommunication call bill Download PDFInfo
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- CN104244235A CN104244235A CN201310246840.1A CN201310246840A CN104244235A CN 104244235 A CN104244235 A CN 104244235A CN 201310246840 A CN201310246840 A CN 201310246840A CN 104244235 A CN104244235 A CN 104244235A
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Abstract
The invention discloses a method and system for encryption and decryption of the sensitive information of a telecommunication call bill. The encryption method comprises the steps of scanning the sensitive information of the telecommunication call bill, carrying out coding on important fields of the sensitive information of the telecommunication call bill, and generating a coding dictionary; replacing the important fields of the sensitive information of the telecommunication call bill with the coding dictionary to obtain coded sensitive information of the telecommunication call bill; generating encryption keys corresponding to the sensitive information of the telecommunication call bill, and randomly selecting an encryption algorithm from configured encryption algorithm pool; carrying out encryption on the coded sensitive information of the telecommunication call bill with the keys and the encryption algorithm corresponding to the sensitive information of the telecommunication call bill to generate the ciphertext information of the telecommunication call bill. According to the method and system for encryption and decryption of the sensitive information of the telecommunication call bill, the sensitive information of the telecommunication call bill is coded and encrypted, and stored in a ciphertext mode, management staff can only see the ciphertext of the sensitive information of the telecommunication call bill in a management process and cannot know the actual content of the sensitive information of the telecommunication call bill, and the safety of the sensitive information of the telecommunication call bill is improved.
Description
Technical field
The present invention relates to field of information security technology, particularly relate to the encryption of a kind of telecommunications ticket sensitive information, decryption method and system.
Background technology
Along with the high speed development of the communications industry, user's ticket sensitive data information that telecommunications enterprise produces also gets more and more, it is also increasing that data store the cost pressure caused, so also just do not preserve online for the CDR file data exceeding certain hour, to reduce management cost and production cost, but for needs such as public safety and process customer complaint disputes, still need the off-line off-line mode adopting low cost to preserve for these data rolled off the production line, can use be inquired about when needed.Therefore, these sensitive datas existing adopt the mode of " expressly+text " to be preserved by prefectures and cities.
There is following defect in existing ticket sensitive information off line storage means: file adopts expressly to be preserved, poor stability, and administrative staff can facilitate tactiosensible information, and the operation note registration and the security audit work system that lack necessity support.
Summary of the invention
In order to solve the technical problem of ticket sensitive information storage security difference in prior art, the present invention proposes the encryption of a kind of telecommunications ticket sensitive information, decryption method and system.
One aspect of the present invention, provides a kind of telecommunications ticket sensitive information encryption method, comprising: scanning telecommunications ticket sensitive information, encodes, generate encoder dictionary to the emphasis field of telecommunications ticket sensitive information; Use the emphasis field of encoder dictionary to telecommunications ticket sensitive information to replace, obtain the telecommunications ticket sensitive information after encoding; Generate the encryption key that telecommunications ticket sensitive information is corresponding, random selecting cryptographic algorithm from the cryptographic algorithm pond configured; Use key corresponding to telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generate telecommunications ticket cipher-text information.
Another aspect of the present invention, provides a kind of telecommunications ticket sensitive information decryption method, comprising: inquiry telecommunications ticket cipher-text information; Download the encryption key of its correspondence according to telecommunications ticket cipher-text information and comprise the encryption configuration information of cryptographic algorithm, decruption key corresponding to telecommunications ticket cipher-text information and decipherment algorithm is searched according to encryption key and encryption configuration information, use decruption key and decipherment algorithm to be decrypted telecommunications ticket cipher-text information, obtain telecommunications ticket decryption information; The encoder dictionary generated in inquiry ciphering process, uses encoder dictionary to decode to the respective field in telecommunications ticket decryption information, obtains original telecommunications ticket sensitive information.
One aspect of the present invention, providing a kind of telecommunications ticket sensitive information encryption system, comprising: code device, for scanning telecommunications ticket sensitive information, encoding to the emphasis field of telecommunications ticket sensitive information, generates encoder dictionary; Use the emphasis field of encoder dictionary to telecommunications ticket sensitive information to replace, obtain the telecommunications ticket sensitive information after encoding; Encryption device, for generating encryption key corresponding to telecommunications ticket sensitive information, random selecting cryptographic algorithm from the cryptographic algorithm pond configured; Use key corresponding to telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generate telecommunications ticket cipher-text information.
Another aspect of the present invention, provides a kind of telecommunications ticket sensitive information decryption system, comprising: inquiry unit, for inquiring about telecommunications ticket cipher-text information; Decryption device, for downloading the encryption key of its correspondence according to telecommunications ticket cipher-text information and comprising the encryption configuration information of cryptographic algorithm, decruption key corresponding to telecommunications ticket cipher-text information and decipherment algorithm is searched according to encryption key and encryption configuration information, use decruption key and decipherment algorithm to be decrypted telecommunications ticket cipher-text information, obtain telecommunications ticket decryption information; Decoding device, for inquiring about the encoder dictionary generated in ciphering process, using encoder dictionary to decode to the respective field in telecommunications ticket decryption information, obtaining original telecommunications ticket sensitive information.
Telecommunications ticket sensitive information encryption of the present invention, decryption method and system, by encoding to telecommunications ticket sensitive information, encrypt, store in the mode of glyphed, administrative staff can only see the ciphertext of ticket sensitive information in data management processes, and the actual content of ticket sensitive information can not be known, improve the fail safe of ticket sensitive information.In addition, carry out dynamic coding by the frequency of occurrence of counterweight point field, further increase Information Security, the compression ratio that information stores can be improved simultaneously.By setting up cryptographic algorithm pond, random selecting cryptographic algorithm, strengthens the anti-of information and cracks intensity, improve fail safe further.
Accompanying drawing explanation
Fig. 1 is the flow chart of telecommunications ticket sensitive information encryption method embodiment of the present invention;
Fig. 2 is the schematic diagram that encoder dictionary of the present invention generated car;
Fig. 3 is the flow chart of telecommunications ticket sensitive information decryption method embodiment of the present invention;
Fig. 4 is that the present invention uses encoder dictionary decode procedure schematic diagram;
Fig. 5 is the structure chart of telecommunications ticket sensitive information encryption system embodiment of the present invention;
Fig. 6 is the structure chart of telecommunications ticket sensitive information decryption system embodiment of the present invention.
Embodiment
The invention provides a kind of encryption for the storage of user's ticket off line, decryption method and system, the ticket that original plaintext is preserved can encrypting storing, and the generation of DEA, key and encoder dictionary is completely transparent to user, make full use of the affair mechanism of existing database system to ensure the consistency of whole database, ensure correctness, the integrality of enciphered data, and the invertibity of code and decode and encryption and decryption.Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, the flow process of telecommunications ticket sensitive information encryption method embodiment of the present invention is as follows:
Step 102, scanning telecommunications ticket sensitive information, encodes to the emphasis field of telecommunications ticket sensitive information, generates encoder dictionary;
Concrete operations are as follows:
(1) the whole month user ticket is scanned, by frequency of occurrence, separately frequency of occurrence counting is carried out to the other side's conversation number, cell base station;
(2) dynamically result set is generated according to count results;
(3) alphabetical a-z is adopted to encode successively to frequency of occurrence emphasis field from high to low;
(4) encoder dictionary was uploaded by ticket month be saved in key server.
Step 104, uses the emphasis field of encoder dictionary to telecommunications ticket sensitive information to replace, and obtains the telecommunications ticket sensitive information after encoding.
Step 106, generates the encryption key that telecommunications ticket sensitive information is corresponding, random selecting cryptographic algorithm from the cryptographic algorithm pond configured.
Can according to algorithm stochastic generation encryption key, such as, the temporal information according to telecommunications ticket sensitive information generates encryption key (monthly generating Crypted password), does not repeat between key, and there is certain length, after generation, key is encrypted and uploads key server and preserve.
Set up the cryptographic algorithm pond comprising multiple encryption algorithms, random selecting cryptographic algorithm from cryptographic algorithm pond, and corresponding relation between setting up according to storage object, cryptographic algorithm, decipherment algorithm, be uploaded to key server and preserve.
Step 108, uses key corresponding to telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generates telecommunications ticket cipher-text information.
Step 110, is saved in embedded database by generated telecommunications ticket cipher-text information, carries out the preservation of lasting data method.
The process that encoder dictionary generates is illustrated: when emphasis field is the conversation number of telecommunications ticket sensitive information, distribute corresponding section character and tail number character according to number section of conversation number and the frequency of occurrence number of the being respectively section of tail number and tail number below in conjunction with figure.Use corresponding section character and tail number character to replace number section and the tail number of conversation number respectively, and number between section character and tail number character, add separator.As shown in Figure 2, suppose that partner number is 13705511234, first the number of pressing section+mantissa's mode carries out separately counting, namely by 1370551 and 1234 countings, if it is all the highest that both go out time frequency, just all encode with alphabetical a: 1370551->a, 1234->a, decollator $ is inserted again, the result 13705511234->a $ a after coding in the middle of former data during actual replacement.
Suppose there are 10000 numbers sections, owing to using alphabetical a ~ z to encode to it, at most only need 3 dictionary encodings that can complete check mark section,
When the worst, only needs 3 letters can complete the coding to 10000 check mark sections (7), can reach the compression ratio surpassing 50% after coding, effectively improve ticket memory space utilance.
Based on above-mentioned encryption method, the present invention also provides a kind of telecommunications ticket sensitive information decryption method embodiment, as shown in Figure 3, comprises the following steps:
Step 302, inquiry telecommunications ticket cipher-text information;
Step 304, downloads the encryption key of its correspondence according to telecommunications ticket cipher-text information and comprises the encryption configuration information of cryptographic algorithm;
Step 306, searches decruption key corresponding to telecommunications ticket cipher-text information and decipherment algorithm according to encryption key and encryption configuration information;
Step 308, uses decruption key and decipherment algorithm to be decrypted telecommunications ticket cipher-text information, obtains telecommunications ticket decryption information;
Step 310, the encoder dictionary generated in inquiry ciphering process;
Step 312, uses encoder dictionary to decode to the respective field in telecommunications ticket decryption information, obtains original telecommunications ticket sensitive information;
Step 314, by the data exhibiting that decrypts to user, and audit server is uploaded in generating run daily record, so that the later stage initiates audit work.
The process using encoder dictionary decoding is illustrated: as shown in Figure 4 below in conjunction with figure, data as deciphering are a & a, first by the character number of splitting into section a and mantissa a, the corresponding dictionary of inquiry relevant month must the section of being extra-large a correspondence 1370551, mantissa a correspondence 1234, can show that initial data is 13705511234.
Based on foregoing invention design, the present invention also provides a kind of telecommunications ticket sensitive information encryption system, and as shown in Figure 5, this encryption system comprises: code device 51 and encryption device 52.
Code device scanning telecommunications ticket sensitive information, encodes to the emphasis field of telecommunications ticket sensitive information, generates encoder dictionary; Use the emphasis field of encoder dictionary to telecommunications ticket sensitive information to replace, obtain the telecommunications ticket sensitive information after encoding.Encryption device generates encryption key corresponding to telecommunications ticket sensitive information, random selecting cryptographic algorithm from the cryptographic algorithm pond configured; Use key corresponding to telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generate telecommunications ticket cipher-text information.
Code device comprises: dictionary generation module 511 and field replacement module 512.Dictionary generation module scanning telecommunications ticket sensitive information, encodes to the emphasis field of telecommunications ticket sensitive information, generates encoder dictionary.Field replacement module uses the emphasis field of encoder dictionary to telecommunications ticket sensitive information to replace, and obtains the telecommunications ticket sensitive information after encoding.
Wherein, dictionary generation module can be encoded according to the frequency of occurrence counterweight point field of the emphasis field of telecommunications ticket sensitive information.
Particularly, when emphasis field is the conversation number of telecommunications ticket sensitive information, dictionary generation module distributes corresponding section character and tail number character according to number section of conversation number and the frequency of occurrence number of the being respectively section of tail number and tail number; Field replacement module uses corresponding section character and tail number character to replace number section and the tail number of conversation number respectively, and number is adding separator between section character and tail number character.
Such as, dictionary generation module adopts alphabetical a-z to encode to frequency of occurrence emphasis field from high to low successively.
Encryption device generates encryption key corresponding to telecommunications ticket sensitive information according to the temporal information of telecommunications ticket sensitive information.
Based on foregoing invention design, the present invention also provides a kind of telecommunications ticket sensitive information decryption system, and as shown in Figure 6, this decryption system comprises: inquiry unit 61, decryption device 62 and decoding device 63.
Inquiry unit inquiry telecommunications ticket cipher-text information.
Decryption device is downloaded the encryption key of its correspondence according to telecommunications ticket cipher-text information and is comprised the encryption configuration information of cryptographic algorithm, decruption key corresponding to telecommunications ticket cipher-text information and decipherment algorithm is searched according to encryption key and encryption configuration information, use decruption key and decipherment algorithm to be decrypted telecommunications ticket cipher-text information, obtain telecommunications ticket decryption information.
The encoder dictionary generated in decoding device inquiry ciphering process, uses encoder dictionary to decode to the respective field in telecommunications ticket decryption information, obtains original telecommunications ticket sensitive information.
Telecommunications ticket sensitive information encryption of the present invention, decryption method and system, by encoding to telecommunications ticket sensitive information, encrypt, store in the mode of glyphed, administrative staff can only see the ciphertext of ticket sensitive information in data management processes, and the actual content of ticket sensitive information can not be known, improve the fail safe of ticket sensitive information.In addition, carry out dynamic coding by the frequency of occurrence of counterweight point field, further increase Information Security, the compression ratio that information stores can be improved simultaneously.By setting up cryptographic algorithm pond, random selecting cryptographic algorithm, strengthens the anti-of information and cracks intensity, improve fail safe further.
It is noted that above embodiment is only in order to illustrate the present invention and unrestricted, the present invention is also not limited in above-mentioned citing, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in right of the present invention.
Claims (13)
1. a telecommunications ticket sensitive information encryption method, is characterized in that, comprising:
Scanning telecommunications ticket sensitive information, encodes to the emphasis field of described telecommunications ticket sensitive information, generates encoder dictionary;
Use the emphasis field of described encoder dictionary to described telecommunications ticket sensitive information to replace, obtain the telecommunications ticket sensitive information after encoding;
Generate the encryption key that described telecommunications ticket sensitive information is corresponding, random selecting cryptographic algorithm from the cryptographic algorithm pond configured;
Use key corresponding to described telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generate telecommunications ticket cipher-text information.
2. encryption method according to claim 1, is characterized in that, the described emphasis field to described telecommunications ticket sensitive information is carried out coding and comprised:
Frequency of occurrence according to the emphasis field of described telecommunications ticket sensitive information is encoded to described emphasis field.
3. encryption method according to claim 2, is characterized in that, carries out coding comprise according to the frequency of occurrence of the emphasis field of described telecommunications ticket sensitive information to described emphasis field:
When described emphasis field is the conversation number of described telecommunications ticket sensitive information, described in being respectively according to number section of described conversation number and the frequency of occurrence of tail number, number section and tail number distribute corresponding section character and tail number character;
Use the emphasis field of described encoder dictionary to described telecommunications ticket sensitive information to carry out replacement to comprise:
Use corresponding section character and tail number character to replace number section and the tail number of described conversation number respectively, and add separator between described section character and tail number character.
4. the encryption method according to Claims 2 or 3, is characterized in that, adopts alphabetical a-z to encode successively to frequency of occurrence emphasis field from high to low.
5. encryption method according to claim 1, is characterized in that, generates encryption key corresponding to described telecommunications ticket sensitive information according to the temporal information of described telecommunications ticket sensitive information.
6. a telecommunications ticket sensitive information decryption method, is characterized in that, comprising:
Inquiry telecommunications ticket cipher-text information;
Download the encryption key of its correspondence according to described telecommunications ticket cipher-text information and comprise the encryption configuration information of cryptographic algorithm, decruption key corresponding to described telecommunications ticket cipher-text information and decipherment algorithm is searched according to described encryption key and encryption configuration information, use described decruption key and decipherment algorithm to be decrypted described telecommunications ticket cipher-text information, obtain telecommunications ticket decryption information;
The encoder dictionary generated in inquiry ciphering process, uses encoder dictionary to decode to the respective field in described telecommunications ticket decryption information, obtains original telecommunications ticket sensitive information.
7. a telecommunications ticket sensitive information encryption system, is characterized in that, comprising:
Code device, for scanning telecommunications ticket sensitive information, encodes to the emphasis field of described telecommunications ticket sensitive information, generates encoder dictionary; Use the emphasis field of described encoder dictionary to described telecommunications ticket sensitive information to replace, obtain the telecommunications ticket sensitive information after encoding;
Encryption device, for generating encryption key corresponding to described telecommunications ticket sensitive information, random selecting cryptographic algorithm from the cryptographic algorithm pond configured; Use key corresponding to described telecommunications ticket sensitive information and cryptographic algorithm to be encrypted the telecommunications ticket sensitive information after coding, generate telecommunications ticket cipher-text information.
8. encryption system according to claim 7, is characterized in that, described code device comprises:
Dictionary generation module, for scanning telecommunications ticket sensitive information, encodes to the emphasis field of described telecommunications ticket sensitive information, generates encoder dictionary;
Field replacement module, for using the emphasis field of described encoder dictionary to described telecommunications ticket sensitive information to replace, obtains the telecommunications ticket sensitive information after encoding.
9. encryption system according to claim 8, is characterized in that, described dictionary generation module, and the frequency of occurrence for the emphasis field according to described telecommunications ticket sensitive information is encoded to described emphasis field.
10. encryption system according to claim 9, is characterized in that,
Described dictionary generation module, during for being the conversation number of described telecommunications ticket sensitive information when described emphasis field, is respectively described number section according to number section of described conversation number and the frequency of occurrence of tail number and tail number distributes corresponding section character and tail number character;
Described field replacement module, for number section and the tail number that use corresponding section character and tail number character to replace described conversation number respectively, and adds separator between described section character and tail number character.
11. encryption systems according to claim 9 or 10, is characterized in that,
Described dictionary generation module, for adopting alphabetical a-z to encode successively to frequency of occurrence emphasis field from high to low.
12. encryption systems according to claim 7, is characterized in that, described encryption device, for generating encryption key corresponding to described telecommunications ticket sensitive information according to the temporal information of described telecommunications ticket sensitive information.
13. 1 kinds of telecommunications ticket sensitive information decryption systems, is characterized in that, comprising:
Inquiry unit, for inquiring about telecommunications ticket cipher-text information;
Decryption device, for downloading the encryption key of its correspondence according to described telecommunications ticket cipher-text information and comprising the encryption configuration information of cryptographic algorithm, decruption key corresponding to described telecommunications ticket cipher-text information and decipherment algorithm is searched according to described encryption key and encryption configuration information, use described decruption key and decipherment algorithm to be decrypted described telecommunications ticket cipher-text information, obtain telecommunications ticket decryption information;
Decoding device, for inquiring about the encoder dictionary generated in ciphering process, using encoder dictionary to decode to the respective field in described telecommunications ticket decryption information, obtaining original telecommunications ticket sensitive information.
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| CN109391607A (en) * | 2017-08-14 | 2019-02-26 | 北京京东尚科信息技术有限公司 | Data encryption/decryption method and device, system |
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| WO2016115889A1 (en) * | 2015-01-20 | 2016-07-28 | 中兴通讯股份有限公司 | Method and system for controlling encryption of information and analyzing information as well as terminal |
| CN105119970A (en) * | 2015-07-16 | 2015-12-02 | 陈飞 | Multi-group parallel parameter transcoding transmission method and system |
| CN105119970B (en) * | 2015-07-16 | 2019-06-14 | 陈飞 | A kind of method and system of multiple groups parameter transcoding transmission arranged side by side |
| CN105049094B (en) * | 2015-07-16 | 2018-09-28 | 陈飞 | A kind of method and system of the multigroup parameter transcoding transmission of complexity |
| CN105049094A (en) * | 2015-07-16 | 2015-11-11 | 陈飞 | Complex multi-group parameter transcoding and transmission method and system |
| CN107342931A (en) * | 2016-04-28 | 2017-11-10 | Sk 普兰尼特有限公司 | Security message sending method using personalized template and the equipment using this method |
| CN106228080B (en) * | 2016-06-25 | 2019-03-12 | 郑州财经学院 | A kind of computer data enciphering system |
| CN106228080A (en) * | 2016-06-25 | 2016-12-14 | 郑州财经学院 | A kind of computer data enciphering system |
| CN106656471B (en) * | 2016-12-22 | 2019-05-14 | 武汉信安珞珈科技有限公司 | A kind of guard method and system of user sensitive information |
| CN106656471A (en) * | 2016-12-22 | 2017-05-10 | 武汉信安珞珈科技有限公司 | Method and system for protecting user sensitive information |
| CN109391607A (en) * | 2017-08-14 | 2019-02-26 | 北京京东尚科信息技术有限公司 | Data encryption/decryption method and device, system |
| CN109391607B (en) * | 2017-08-14 | 2022-04-26 | 北京京东尚科信息技术有限公司 | Data encryption and decryption method, device and system |
| CN109271797A (en) * | 2018-09-12 | 2019-01-25 | 郑州云海信息技术有限公司 | A kind of method and system improving the safety of database sensitive information |
| CN109271797B (en) * | 2018-09-12 | 2022-02-18 | 郑州云海信息技术有限公司 | Method and system for improving security of database sensitive information |
| CN109753811A (en) * | 2018-12-28 | 2019-05-14 | 北京东方国信科技股份有限公司 | A kind of data probe design method and device detecting sensitive information |
| CN109753811B (en) * | 2018-12-28 | 2021-04-23 | 北京东方国信科技股份有限公司 | Data probe design method and device for detecting sensitive information |
| CN110162988A (en) * | 2019-05-22 | 2019-08-23 | 咪付(深圳)网络技术有限公司 | A kind of sensitive data encryption method based on operation system |
| CN111177737A (en) * | 2019-08-16 | 2020-05-19 | 腾讯科技（深圳）有限公司 | Data encryption method based on data content and related device |
| CN110933063A (en) * | 2019-11-25 | 2020-03-27 | 中国联合网络通信集团有限公司 | Data encryption method, data decryption method and equipment |
| CN110933063B (en) * | 2019-11-25 | 2022-02-18 | 中国联合网络通信集团有限公司 | Data encryption method, data decryption method and equipment |
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Application publication date: 20141224 |