CN102543121A - Compact disc (CD) reading method, computer and CD driver - Google Patents
Compact disc (CD) reading method, computer and CD driver Download PDFInfo
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- CN102543121A CN102543121A CN2010106107220A CN201010610722A CN102543121A CN 102543121 A CN102543121 A CN 102543121A CN 2010106107220 A CN2010106107220 A CN 2010106107220A CN 201010610722 A CN201010610722 A CN 201010610722A CN 102543121 A CN102543121 A CN 102543121A
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Abstract
The invention provides a compact disc (CD) reading method, a computer and a CD driver. The method comprises the following steps of: reading an intelligent chip on a CD, and inspecting the intelligent chip to judge whether the intelligent chip is legal or not; and under the condition that the intelligent chip is legal, acquiring an encryption algorithm in the intelligent chip, and reading information in the CD by the encryption algorithm. The encryption algorithm is stored on the intelligent chip of the CD, the intelligent chip is read firstly when the CD is read, and then data on the CD is decrypted according to the read encryption algorithm, so that the intelligent chip on the CD can be effectively utilized; and the data on the CD can be decrypted by a legal user in a simple mode on the premise of effectively protecting the data on the CD.
Description
Technical field
The invention belongs to the communications field, particularly a kind of optical disk reading access method, computing machine and CD-ROM drive.
Background technology
At present, people use CD-ROM drive that the data on the CD are read, and anyone can utilize CD-ROM drive that the data on the CD are copied, and make the data of preserving on the CD under uncontrollable situation, leak.
For the content on the CD is protected; Usually the mode that adopts is directly the content on the CD to be encrypted; And the password that is provided for deciphering, only known the password that data are encrypted, the user can use or copy the data of storing on the CD.
Can reach certain good effect though carry out the method for data protection through password; But; Along with the progress of optical disc, the higher CD of degree of intelligence and integrated level has been proposed, can the integrated intelligent chip on a lot of CDs etc. parts; Though on these comparatively advanced CDs, still can adopt password to carry out data protection, this protected mode obviously can't effectively be utilized advanced more optical disc and the intelligent chip on the CD; Simultaneously; The life period of cryptoguard mechanism is very long; There is the hidden danger be cracked, though through introducing the security that multi-level encryption or complicated ciphering process can further improve data of optical disk; Correspondingly also can increase consuming time that difficulty and the CD of deciphering read, be not easy to validated user and obtain the data on the CD.
In correlation technique, for how carry out the active data protection on the CD of intelligent chip and the data on the CD are deciphered easily having, effective solution is not proposed at present as yet.
Summary of the invention
To having the problem of carrying out the active data protection on the CD of intelligent chip and the data on the CD being deciphered easily in the correlation technique; The present invention proposes a kind of optical disk reading access method, computing machine and CD-ROM drive; Can effectively utilize the intelligent chip on the CD, under the prerequisite that the quilt of the data on the CD is effectively protected, make validated user to decipher the data on the CD through simple mode.
Technical scheme of the present invention is achieved in that
A kind of optical disk reading access method comprises:
Read the intelligent chip on the CD, said intelligent chip is verified judged whether said intelligent chip is legal;
Under said intelligent chip is legal situation, obtain the AES in the said intelligent chip, utilize said AES that the information in the said CD is read.
The operation of wherein, reading the intelligent chip on the CD comprises:
CD-ROM drive reads said intelligent chip through the mode of less radio-frequency.
In addition, utilize said AES that the operation that the information in the said CD reads is comprised:
According to the corresponding relation of the encryption lock sign of storing on the said intelligent chip, confirm the pairing authority of encryption lock of CD-ROM drive with authority;
According to said AES the corresponding information of the authority of said encryption lock is read.
Preferably, the authority of said encryption lock further comprises: whether said CD-ROM drive can carry out imprinting to the content of said CD.
A kind of computing machine comprises CD-ROM drive, and said CD-ROM drive comprises:
Radio frequency read/write is used to read the intelligent chip on the CD, and said intelligent chip is verified to judge whether said intelligent chip is legal, and under said intelligent chip is legal situation, obtains the AES in the said intelligent chip;
Memory module is used to store the said AES that obtains;
Module for reading and writing, the said AES that is used for utilizing storage reads the information of said CD.
Wherein, said intelligent chip is a radio frequency chip, and said read write line is the radio frequency chip read write line.
Preferably, the aforementioned calculation machine further comprises:
Encryption lock is connected with said CD-ROM drive;
And said read write line also is used to read the corresponding relation of the encryption lock sign of storing on the said intelligent chip and authority, confirms the pairing authority of encryption lock of CD-ROM drive;
And said module for reading and writing also is used for according to said AES the corresponding information of the authority of said encryption lock being read.
Wherein, the authority of said encryption lock further comprises: whether said CD-ROM drive can carry out imprinting to the content of said CD.
A kind of CD-ROM drive comprises:
Read write line is used to read the intelligent chip on the CD, and said intelligent chip is verified to judge whether said intelligent chip is legal, and under said intelligent chip is legal situation, obtains the AES in the said intelligent chip;
Memory module is used to store the said AES that obtains;
Module for reading and writing, the said AES that is used for utilizing storage reads the information of said CD.
Preferably, further comprise:
Encryption lock is connected with said CD-ROM drive;
And said read write line also is used to read the corresponding relation of the encryption lock sign of storing on the said intelligent chip and authority, confirms the pairing authority of encryption lock of CD-ROM drive;
And said module for reading and writing also is used for according to said AES the corresponding information of the authority of said encryption lock being read or imprinting.
By means of technique scheme of the present invention; Through on the intelligent chip of CD, preserving AES; When reading CD, at first read intelligent chip; According to the AES that reads the data on the CD are deciphered afterwards, can effectively utilize the intelligent chip on the CD, under the prerequisite that the quilt of the data on the CD is effectively protected, make validated user to decipher the data on the CD through simple mode.
Description of drawings
Fig. 1 is the process flow diagram according to the optical disk reading access method of the embodiment of the invention;
Fig. 2 is the block diagram according to the CD-ROM drive of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and specific embodiment.Should be appreciated that specific embodiment described herein only is used to explain the present invention, and be not used in qualification the present invention.
To having the problem of carrying out the active data protection on the CD of intelligent chip and the data on the CD being deciphered easily in the correlation technique; The present invention proposes by CD-ROM drive the intelligent chip of CD to be carried out legitimate verification; And read intelligent chip, the data on the CD deciphered according to the AES that reads; Make the encryption and decryption of data of optical disk can make full use of the intelligent chip on the CD; And, can under the prerequisite that the quilt of the data on the CD is effectively protected, reduce the consuming time of deciphering.
According to embodiments of the invention, a kind of optical disk reading access method is provided.
As shown in Figure 1, comprise according to the optical disk reading access method of the embodiment of the invention:
Step S101 reads the intelligent chip on the CD, intelligent chip is verified judged whether intelligent chip is legal;
Step S103 under intelligent chip is legal situation, obtains the AES in the intelligent chip, utilizes AES that the information in the CD is read.
By means of above-mentioned processing; Through on the intelligent chip of CD, preserving AES; When reading CD, at first read intelligent chip; According to the AES that reads the data on the CD are deciphered afterwards, can effectively utilize the intelligent chip on the CD, under the prerequisite that the quilt of the data on the CD is effectively protected, make validated user to decipher the data on the CD through simple mode.
Wherein, the intelligent chip on the CD can be RF identification (Radio Frequency Identification abbreviates RFID an as) chip, and at this moment, CD-ROM drive can read intelligent chip through the mode of less radio-frequency.
Preferably; Consider that the effect that chip is read can reduce under the situation of the optical disk high-speed rotation in CD-ROM drive, the difficulty that reads can increase; The processing of therefore, reading the intelligent chip on the CD among the above-mentioned steps S101 can be carried out when CD at first inserts CD-ROM drive and also do not begin to rotate.
In addition, utilizing before AES reads the information in the CD, can also confirm the pairing authority of CD-ROM drive or CD and encryption lock according to the corresponding relation of the encryption lock sign of storing on the intelligent chip with authority; Afterwards, according to AES the corresponding information of the authority of encryption lock is read again.
Alternatively, the definite strategy (in the present embodiment, can be the corresponding relation of encryption lock sign and authority) through on intelligent chip, storing authority; Make that the configuration of authority is more flexible,, can carry out the delineation of power of different modes to different CDs; For example, data content 1, data content 2 and data content 3 on CD A, have been preserved, wherein; The privacy degrees of data content 1 is the highest, and data content 2 and 3 privacy degrees are lower, suppose that the highest authority is authority X; The authority of low one-level is authority Y, and minimum authority is authority Z, at this moment; Can the extent of competence of authority Z be configured to be merely able to browsing data content 3, the extent of competence of authority Y is configured to can browsing data content 2 and 3, and the extent of competence of authority X is configured to can browsing data content 1,2 and 3.If for another CD, the privacy degrees of the data content of storing on this CD is all lower, then can dispose each authority and all can browse all data contents on it.And; The set-up mode of authority can be diversified, and can the authority of a specific unit be provided with separately, for example; The CD of unit one can be used by unit two through authorizing, and can not use if unit three takes behind the CD not through authorizing.Through can carry out the setting (with the interaction of CD chip) of authority to CD-ROM drive, also can't read the information in the CD even if having this CD-ROM drive.
Therefore; When practical operation; Just can confirm that with the corresponding relation of authority the current authority of CD-ROM drive allows the data of browsing, thereby realize the division of multistage authority, not only can make the management of authority and data content more flexible, careful according to the encryption lock sign of preserving in advance; And can not produce extra processing burden, only can confirm user right through simple contrast.
In addition; Authority is except limiting CD-ROM drive to the browsing of data content on the CD; Can also further limit CD-ROM drive carry out imprinting and copy to the part or all of content on the CD, and the configuration mode whether concrete implementation and above-mentioned allows to browse is similar, no longer repeats here.
Encryption lock can be carried by the user usually; It is provided be used to store this encryption lock relevant information storer (for example; Can store the sign of this encryption lock), like this, the user as long as with encryption lock with after CD-ROM drive is connected; Just can determine the actual authority that is had of this user, encryption lock can be connected with CD-ROM drive through multiple interfaces such as USB.
In addition, in the such scheme of present embodiment, can protect the data content on the CD by the mode of password authentification equally; At this moment, through after the legitimate verification, CD can point out the user to input password at intelligent chip; If the user knows password or user and can on the storer of encryption lock, obtain password that (mode of input can be that the user manually imports, if on encryption lock, there is password then can to input this password; Can also input password automatically by encryption lock); If password is correct, then carry out the judgement of encryption lock authority, detailed process is the same.
In addition, can also authority be set, make and have only the user of appointment just can use this CD specific CD or CD-ROM drive.
And, through intelligent chip, can also effectively carry out mark to a part of particular optical disk, for example, confirm that these CDs are inner disc, and authority can be set, make CD-ROM drive can only read inner disc, can't read outside CD.
To sum up; By means of above-mentioned processing of the present invention, when reading a CD, CD-ROM drive can verify at first whether the chip on the CD is effective authority and obtains effective decoded information from chip internal; Through decoded information the content of CD is decoded, thereby read optical disc data.When CD of imprinting, CD-ROM drive can generate authority and encrypt decoded information and store in the electronic chip of CD, and with the content-encrypt in the CD, like this, even the disabled user has obtained CD, common CD-ROM drive also can't be read the content of the inside.In addition, the CD that each CD-ROM drive can read can be set flexibly through encryption lock, such as: the encryption light of inner issue or the CD of all CDs or appointment.And this CD-ROM drive can be set whether can imprinting.
According to another embodiment of the present invention, a kind of computing machine is provided also, has comprised CD-ROM drive, this CD-ROM drive is connected to the mainboard or the miscellaneous part of computing machine.
As shown in Figure 2, comprise according to the CD-ROM drive of the embodiment of the invention:
Read write line 21 is used to read the intelligent chip on the CD, and intelligent chip is verified to judge whether intelligent chip is legal, and under intelligent chip is legal situation, obtains the AES in the intelligent chip;
Module for reading and writing 23 is connected to memory module 22, and the AES that is used for utilizing storage reads or imprinting the information of CD.
Wherein, the intelligent chip of CD can be radio frequency chip, and correspondingly, read write line 21 is the radio frequency chip read write line.
In addition, computing machine may further include encryption lock, is connected with CD-ROM drive;
And read write line also is used to read the corresponding relation of the encryption lock sign of storing on the intelligent chip and authority, confirms the pairing authority of encryption lock of CD-ROM drive;
And read module also is used for according to AES the corresponding information of the authority of encryption lock being read.
In addition, the authority of encryption lock may further include: whether CD-ROM drive can carry out imprinting to the content of CD.
In addition, this CD-ROM drive can also comprise:
Memory module is used to store the AES that obtains and the parameter of dispatching from the factory of CD-ROM equipment, and for example, this parameter can comprise information such as having sold certain unit after this equipment dispatches from the factory;
The encryption and decryption module, it is close to be used for that information encrypted is added (separating);
The authority discrimination module is used for the authority of encryption lock setting is discerned, and according to the effective rights mandate read-write operation of discerning, for example, according to the mandate of authority discrimination module, module for reading and writing is merely able to read the data of authorization portions.
In sum; By means of technique scheme of the present invention; Through on the intelligent chip of CD, preserving AES, when reading CD, at first read intelligent chip, according to the AES that reads the data on the CD are deciphered afterwards; Can effectively utilize the intelligent chip on the CD, under the prerequisite that the quilt of the data on the CD is effectively protected, make validated user to decipher the data on the CD through simple mode; In addition; By means of intelligent chip; Authority that can each CD-ROM drive of flexible configuration, and realized hardware based encryption, can be to the content on the CD according to delineation of power; Solve in the correlation technique problem of the corresponding single authority of CD, and can avoid the potential safety hazard of simple software cryptography easy crack.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an optical disk reading access method is characterized in that, comprising:
Read the intelligent chip on the CD, said intelligent chip is verified judged whether said intelligent chip is legal;
Under said intelligent chip is legal situation, obtain the AES in the said intelligent chip, utilize said AES that the information in the said CD is read.
2. optical disk reading access method according to claim 1 is characterized in that, the operation of reading the intelligent chip on the CD comprises:
CD-ROM drive reads said intelligent chip through the mode of less radio-frequency.
3. optical disk reading access method according to claim 1 is characterized in that, utilizes said AES that the operation that the information in the said CD reads is comprised:
According to the corresponding relation of the encryption lock sign of storing on the said intelligent chip, confirm the pairing authority of encryption lock of CD-ROM drive with authority;
According to said AES the corresponding information of the authority of said encryption lock is read.
4. optical disk reading access method according to claim 3 is characterized in that, the authority of said encryption lock further comprises: whether said CD-ROM drive can carry out imprinting to the content of said CD.
5. a computing machine comprises CD-ROM drive, it is characterized in that, said CD-ROM drive comprises:
Radio frequency read/write is used to read the intelligent chip on the CD, and said intelligent chip is verified to judge whether said intelligent chip is legal, and under said intelligent chip is legal situation, obtains the AES in the said intelligent chip;
Memory module is used to store the said AES that obtains;
Module for reading and writing, the said AES that is used for utilizing storage reads the information of said CD.
6. computing machine according to claim 5 is characterized in that, said intelligent chip is a radio frequency chip, and said read write line is the radio frequency chip read write line.
7. computing machine according to claim 5 is characterized in that, said computing machine further comprises:
Encryption lock is connected with said CD-ROM drive;
And said read write line also is used to read the corresponding relation of the encryption lock sign of storing on the said intelligent chip and authority, confirms the pairing authority of encryption lock of CD-ROM drive;
And said module for reading and writing also is used for according to said AES the corresponding information of the authority of said encryption lock being read.
8. computing machine according to claim 7 is characterized in that, the authority of said encryption lock further comprises: whether said CD-ROM drive can carry out imprinting to the content of said CD.
9. a CD-ROM drive is characterized in that, comprising:
Read write line is used to read the intelligent chip on the CD, and said intelligent chip is verified to judge whether said intelligent chip is legal, and under said intelligent chip is legal situation, obtains the AES in the said intelligent chip;
Memory module is used to store the said AES that obtains;
Module for reading and writing, the said AES that is used for utilizing storage reads the information of said CD.
10. CD-ROM drive according to claim 9 is characterized in that, further comprises:
Encryption lock is connected with said CD-ROM drive;
And said read write line also is used to read the corresponding relation of the encryption lock sign of storing on the said intelligent chip and authority, confirms the pairing authority of encryption lock of CD-ROM drive;
And said module for reading and writing also is used for according to said AES the corresponding information of the authority of said encryption lock being read or imprinting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010610722.0A CN102543121B (en) | 2010-12-29 | 2010-12-29 | Compact disc (CD) reading method, computer and CD driver |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010610722.0A CN102543121B (en) | 2010-12-29 | 2010-12-29 | Compact disc (CD) reading method, computer and CD driver |
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| CN102543121A true CN102543121A (en) | 2012-07-04 |
| CN102543121B CN102543121B (en) | 2015-01-07 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822171A (en) * | 2006-01-19 | 2006-08-23 | 华中科技大学 | Data scrambling and decoding method for optic disc storage |
| CN201185082Y (en) * | 2008-04-15 | 2009-01-21 | 航天信息股份有限公司 | Mobile memory with high safety |
| CN101826354A (en) * | 2010-05-11 | 2010-09-08 | 杨彬 | Optical disk safety management method and device |
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2010
- 2010-12-29 CN CN201010610722.0A patent/CN102543121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822171A (en) * | 2006-01-19 | 2006-08-23 | 华中科技大学 | Data scrambling and decoding method for optic disc storage |
| CN201185082Y (en) * | 2008-04-15 | 2009-01-21 | 航天信息股份有限公司 | Mobile memory with high safety |
| CN101826354A (en) * | 2010-05-11 | 2010-09-08 | 杨彬 | Optical disk safety management method and device |
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| CN102543121B (en) | 2015-01-07 |
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Effective date of registration: 20180314 Address after: 100080 Haidian Road, Haidian District, Haidian District, Beijing, Zhong Cheng mansion 716 Patentee after: BEIJING SUCCEED TECHNOLOGY Co.,Ltd. Address before: 100080 central mansion, No. 19-1, Haidian Road, Haidian District, Beijing Patentee before: Yin Liang |
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Address after: Room 3204, Building 10, Tiantong Xiyuan Second District, Changping District, Beijing, 102218 Patentee after: BEIJING SUCCEED TECHNOLOGY Co.,Ltd. Address before: 716 Zhongcheng Building, No. 19-1 Haidian Road, Haidian District, Beijing, 100080 Patentee before: BEIJING SUCCEED TECHNOLOGY Co.,Ltd. |