CN101072100B - Authenticating system and method utilizing reliable platform module - Google Patents

Authenticating system and method utilizing reliable platform module Download PDF

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Publication number
CN101072100B
CN101072100B CN2006100802794A CN200610080279A CN101072100B CN 101072100 B CN101072100 B CN 101072100B CN 2006100802794 A CN2006100802794 A CN 2006100802794A CN 200610080279 A CN200610080279 A CN 200610080279A CN 101072100 B CN101072100 B CN 101072100B
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condition code
biological condition
instruction
user biological
tpm
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CN101072100A (en
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尹萍
谢巍
郭轶尊
林洋
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Abstract

The authentication system includes an application program module, a TSP module, a TCS module, a TPM driver module, and TPM. The system also includes a biological feature recognition device, which connected to TPM and TSP modules is in use for obtaining user's biological features. Moreover, based on user's biological features, the method forms user's biological feature code as well as based on user's biological features, the method also searches matched user's biological feature code. TPM is in use for obtaining user's biological feature code, and decides whether TPM operation is executed or not based on result of validating user's biological feature code. The invention introduces biological feature recognition into TPM. Since biological feature code possesses uniqueness, the invention possesses feature of high security. The method is convenient because users do not need to memorize owner and secret information of cipher key.

Description

A kind of Verification System and authentication method that utilizes reliable platform module
Technical field
The present invention relates to the safety technique of computer system, particularly a kind of technology of the user of computer system being carried out safety certification.
Background technology
For the purpose of safety; Existing computer system (for example notebook computer, desktop computer etc.) is all carried out authentication to the computer user in User login; Under the consistent situation of the authentication information of only in authentication information that the user provides and computer system, storing, just allow the user to get into computer system and operate.
Yet; Present authentication information all exists in the storage system of computer system (like the hard disk of computer system); Authentication information on depositing in the storage system of computer like this possibly stolen or unauthorized access by long-range; The user through authentication still might not obtain this authentication information, thereby realizes landing this computer system, simultaneously; Because the versatility and the opening of medium, the authentication information on depositing in the storage system of computer also is easy to receive the attack of virus, wooden horse and other rogue programs.
Since the existence of the problems referred to above, more existing at present relevant solutions of being devoted to address this problem, as utilize TPM (Trusted Platform Module; The trusted console module) realizes; It is independent of operating system, does not receive operating system control and independent operating, and TPM chip internal program is solidified; Can not change, these can both partly address the above problem.
Wherein, The structure of existing TPM authentication module is as shown in Figure 1, comprises application program module 11, TSP (TSS Service Provider, TSS service provider) module 12, TCS (TSS Core Service; The TSS kernel service) module 15, TPM driver module 16 and TPM 17; TSS is the abbreviation of TPM Software Stack, and promptly TPM software heap is a kind of software specifications; This standard is provided for inserting the standard A PI (Application Programming Interface, API) of the function of TPM.
As shown in Figure 1, wherein:
Application program module 11 is connected with TSP module 12, is used for sending instruction to TSP module 12, comprise creating secret key instruction and encryption and decryption operational order, and the key that reception TSP module 12 is returned is created successful information and encryption and decryption execution result information;
TPM 17, are connected with TPM driver module 16, are used to create the operation of secret key and encryption and decryption, and return secret key of establishment and encryption and decryption operation execution result to the TSP module;
TCS module 15 connects TSP module 12 and TPM driver module 16, is used for the data of transmission between TPM 17 and the TSP module 12 are carried out certain encoding operation;
TSP module 12 is connected with TCS module 15, is used for sending instruction of establishment key and encryption and decryption operational order through TCS module 15, TPM driver module 16 to TPM 17, when creating key, also is used for creating successful information to application program module 11 " return " key"s; When using key, also be used for returning encryption and decryption operation execution result to application program module 11.
Yet; TPM authentication at present adopts the mode of password to carry out authentication, and the user need remember a series of data such as user name, password, uses inconvenience; Enter password simultaneously and also stolen password by keyboard monitoring software easily, security of system still can't be guaranteed fully.
The user is as a kind of biology, and the many physiological characteristics of itself all are unique, for example fingerprint, iris etc.
Summary of the invention
The object of the present invention is to provide a kind of Verification System and authentication method that utilizes reliable platform module; User's distinctive physiological characteristic itself is introduced existing TPM Verification System; Safety; Be easy to use, the safety certification that solves computer system under the prior art condition can't guarantee to use safely, simultaneously problems such as inconvenience fully.
To achieve these goals, the invention provides a kind of Verification System of utilizing reliable platform module, comprise an application program module, a TSP module, a TCS module, a TPM driver module and a TPM, also comprise:
One biological characteristic identificating equipment is connected with the TSP module with said TPM, is used to obtain the user biological characteristic, and forms the user biological condition code according to the user biological characteristic, also is used for seeking the matching user biological condition code according to the user biological characteristic;
Said TPM is used for directly obtaining said user biological condition code from said living things feature recognition equipment, and is used for carrying out the TPM operation according to the instruction and the said user biological condition code of said TSP module.
Above-mentioned system, wherein, when execution need be obtained the instruction of authentication information, said living things feature recognition equipment specifically was used to obtain the first user biological condition code and calculates first cryptographic hash according to the said first user biological condition code; Said TPM specifically is used for obtaining the instruction that execution need be obtained authentication information after the first user biological condition code and first cryptographic hash from said living things feature recognition equipment.
Above-mentioned system; Wherein, when execution needed the authentication verification information instruction, said living things feature recognition equipment specifically was used to obtain the second user biological condition code; Compare with the tabulation of the user biological condition code of internal maintenance, calculate second cryptographic hash after finding the biological condition code of coupling; Said TPM specifically is used to obtain said second cryptographic hash, and is used for more said first cryptographic hash and second cryptographic hash, when the two is consistent, carries out the said authentication verification information instruction that needs.
Above-mentioned system, wherein, when execution need be obtained the instruction of authentication information, said living things feature recognition equipment specifically was used to obtain the first user biological condition code; Said TPM specifically is used for obtaining the first user biological condition code from said living things feature recognition equipment, and calculates the instruction that the execution needs obtain authentication information after first cryptographic hash according to the said first user biological condition code.
Above-mentioned system, wherein, when execution needed the authentication verification information instruction, said living things feature recognition equipment specifically was used to obtain the second user biological condition code, compared with the user biological condition code tabulation of internal maintenance, found the biological condition code of coupling; Said TPM calculates second cryptographic hash, more said first cryptographic hash and second cryptographic hash after specifically being used to obtain the biological condition code of coupling, and is used for when the two is consistent, carrying out the said authentication verification information instruction that needs.
Above-mentioned system, wherein, said living things feature recognition equipment and said TPM carry out information interaction through general input/output signal.
Above-mentioned system, wherein, said living things feature recognition equipment utilization one random number is obtained said user biological condition code, and said random number is obtained through OIAP or OSAP by said TSP module, and sends to said living things feature recognition equipment.
Above-mentioned system, wherein, said user biological characteristic includes but not limited to fingerprint, iris, face type, palmmprint and sound.
Above-mentioned system, wherein, said living things feature recognition equipment is connected with said TSP module through a biological characteristic identificating equipment driver module, and obtains said user biological condition code according to the instruction of said TSP module.
In order better to realize above-mentioned purpose, the present invention also provides a kind of authentication method that utilizes reliable platform module, obtains the user biological characteristic by living things feature recognition equipment, and forms the user biological condition code according to the user biological characteristic; TPM directly obtains said user biological condition code from said living things feature recognition equipment, and carries out the TPM operation according to the instruction and the said user biological condition code of said TSP module.
Above-mentioned method, wherein, when execution need be obtained the instruction of authentication information, said living things feature recognition equipment obtained the first user biological condition code and calculates first cryptographic hash according to the said first user biological condition code; Said TPM obtains the instruction that execution need be obtained authentication information after the first user biological condition code and first cryptographic hash from said living things feature recognition equipment.
Above-mentioned method; Wherein, when execution needed the authentication verification information instruction, said living things feature recognition equipment obtained the second user biological condition code; Compare with the tabulation of the user biological condition code of internal maintenance, calculate second cryptographic hash after finding the biological condition code of coupling; Said TPM obtains said second cryptographic hash, and more said first cryptographic hash and second cryptographic hash, when the two is consistent, carries out the said authentication verification information instruction that needs.
Above-mentioned method, wherein, when execution need be obtained the instruction of authentication information, said living things feature recognition equipment obtained the first user biological condition code; Said TPM obtains the first user biological condition code from said living things feature recognition equipment, and calculates the instruction that the execution needs obtain authentication information after first cryptographic hash according to the said first user biological condition code.
Above-mentioned method, wherein, when execution needed the authentication verification information instruction, said living things feature recognition equipment obtained the second user biological condition code, compared with the user biological condition code tabulation of internal maintenance, found the biological condition code of coupling; Said TPM calculates second cryptographic hash, more said first cryptographic hash and second cryptographic hash after obtaining the biological condition code of coupling, and the two carries out the said authentication verification information instruction that needs when consistent
Verification System and the authentication method that utilizes reliable platform module of the present invention; Introduced living things feature recognition to TPM; Through utilizing a biological characteristic identificating equipment to obtain the user biological condition code, realize creating key operation or encryption and decryption operation by TPM through this user biological condition code then, because the uniqueness of biological condition code; And have only the biological condition code checking to pass through; TPM just carries out corresponding operating, because TPM equipment and fingerprint equipment direct communication, the user biological condition code can not appear in the internal memory; Need not the user enter password simultaneously, keyboard is monitored software and also can't be stolen, and has safe characteristics, and simultaneously, the user need not to remember the secret information of the owner and key, and is easy to use.
Description of drawings
Fig. 1 is the structural representation of Verification System of the reliable platform module of prior art;
Fig. 2 is the structural representation that utilizes the Verification System of reliable platform module of the present invention;
Fig. 3 is the process flow diagram that Verification System of the present invention realizes the establishment key step in the method for authentication;
Fig. 4 is the process flow diagram that Verification System of the present invention realizes the use key step in the method for authentication.
Embodiment
First embodiment of the Verification System of utilizing reliable platform module of the present invention is as shown in Figure 1; Comprise application program module 11, TSP module 12, living things feature recognition device driver module 13, living things feature recognition equipment 14, TCS module 15, TPM driver module 16 and TPM 17, wherein:
Application program module 11 is connected with TSP module 12, is used for sending instruction to TSP module 12, when comprising the instruction that need obtain authentication information and needing the authentication verification information instruction, and receives the execution result information that TSP module 12 is returned;
Living things feature recognition equipment 14 is connected with TPM 17 with living things feature recognition device driver module 13, is used for obtaining the user biological characteristic according to the instruction of TSP module 12; And form the user biological condition code according to the user biological characteristic, and the corresponding relation between maintenance customer's biological condition code and the PKI cryptographic hash, the instruction that need obtain authentication information in execution is (like the establishment owner; Create key; Enciphered data is upgraded and is authorized) time, said living things feature recognition equipment obtains the first user biological condition code and calculates first cryptographic hash; When carrying out the encryption and decryption operation; Said living things feature recognition equipment obtains the second user biological condition code, compares with the user biological condition code of internal maintenance, finds the biological condition code of coupling to calculate second cryptographic hash; This living things feature recognition equipment is through GPIO (General-Purpose Input/Output; General I/O) signal and TPM 17 realize information interaction; This living things feature recognition equipment 14 obtains the user biological characteristic according to random number; This random number is obtained through OIAP (object have nothing to do authentication protocol) instruction or OSAP (object relevant authentication agreement) by TSP module 12; And sending to living things feature recognition equipment 14 with finger scan instruction, indicator organism characteristic identificating equipment 14 obtains the user biological characteristic;
TPM 17; Be connected with TPM driver module 16 with living things feature recognition equipment 14; Be used for obtaining the user biological condition code, and combine user biological condition code execution needs to obtain the instruction and the needs authentication verification information instruction of authentication information according to the instruction of TSP module 12 from living things feature recognition equipment 14; When execution need be obtained the instruction of authentication information; According to the first user biological condition code and first cryptographic hash obtained from living things feature recognition equipment 14; And after creating successfully; With first cryptographic hash and key data (or first user biological condition code and key data) packaging ciphering, and to TSP module 12 return results; Need the authentication verification information instruction (to need the owner to authorize in execution as changing chip status and obtaining key message; Creating sub-key and encryption and decryption data needs key authorization, and data decryption needs the enciphered data mandate) time, TPM 17 obtains second cryptographic hash from living things feature recognition equipment 14; And comparison first cryptographic hash and second cryptographic hash; If the two unanimity then carry out encryption and decryption operation, and return execution result to the TSP module, do not need the authentication verification information instruction otherwise do not carry out;
TPM 17 obtains corresponding with it biometric code through sending same random number to living things feature recognition equipment.
TCS module 15 connects TSP module 12 and TPM driver module 16, is used for the data of transmission between TPM 17 and the TSP module 12 are carried out certain encoding operation;
TSP module 12; Be connected with TCS module 15 with living things feature recognition device driver module 13; Be used for obtaining a random number through OIAP (object have nothing to do authentication protocol) instruction or OSAP (object relevant authentication agreement); And this random number sent to living things feature recognition equipment 14 through living things feature recognition device driver module 13, indicator organism characteristic identificating equipment 14 obtains the user biological characteristic, need obtain the instruction of authentication information or need the authentication verification information instruction to TPM 17 transmissions through TCS module 15, TPM driver module 16 simultaneously; And after receiving the execution result that TPM17 returns, return execution result to application program module 11.
Certainly, calculate the action of cryptographic hash and also can accomplish by TPM, but volume of transmitted data big (general 256-1024 byte).
Be that example is further elaborated with secret key below.
The Verification System of reliable platform module of utilizing of the present invention realizes that the method for authentication comprises establishment key step and uses the key step.
As shown in Figure 3, the Verification System of utilizing reliable platform module of the present invention realizes that the establishment key step in the method for authentication specifically comprises the steps:
Step 31, TSP module receive the establishment key instruction that application program module is sent;
Step 32, the TSP module is obtained random number through the OIAP instruction, and random number is sent to living things feature recognition equipment, and the indicator organism characteristic identificating equipment obtains user's biological condition code;
Step 33, living things feature recognition equipment obtains user's biological characteristic, and forms the first user biological condition code, if known users then merges;
Step 34, TSP module will be created the key instruction and send to said TPM, create key by said TPM, and obtain the said first user biological condition code from living things feature recognition equipment;
Step 35, said TPM obtains first cryptographic hash according to the first user biological condition code, and with first user biological condition code and the key data, or first cryptographic hash and key data packaging ciphering, and to TSP module " return " key" establishment successful information;
Step 36, the TSP module is created successful information to said application program module " return " key".
As shown in Figure 4, the Verification System of utilizing reliable platform module of the present invention realizes that the use key step in the method for authentication specifically comprises the steps:
Step 41, TSP module receive the encryption and decryption instruction that application program module is sent;
Step 42, the TSP module obtains random number through the irrelevant authentication protocol instruction of object, random number is issued living things feature recognition equipment, the said biological characteristic that obtains of indicator organism characteristic identificating equipment;
Step 43, living things feature recognition equipment obtains user's biological characteristic, and forms the second user biological condition code, and compares with the user biological condition code of internal maintenance, finds the biological condition code of coupling to calculate second cryptographic hash;
Step 44, the TSP module sends to TPM with the encryption and decryption instruction;
Step 45; TPM obtains second cryptographic hash according to random number, and judges whether said first cryptographic hash is consistent with second cryptographic hash, if unanimity then carry out encryption and decryption operation; And return encryption and decryption to said TSP module and operate execution result, otherwise do not carry out the encryption and decryption operation;
Step 46, said TSP module is returned encryption and decryption operation execution result to said application program module.
Said in the above embodiments biological characteristic is the unique biological characteristic of user, like biological characteristics such as fingerprint, iris, face type, palmmprint and sound.
Simultaneously, be that example describes with the key in the embodiments of the invention, can certainly be the owner, the process basically identical of its process and key repeats no more at this.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (7)

1. a Verification System of utilizing reliable platform module comprises an application program module, a TSP module, a TCS module, a TPM driver module and a TPM, it is characterized in that, also comprises:
One biological characteristic identificating equipment is connected with the TSP module with said TPM, is used to obtain the user biological characteristic, and forms the user biological condition code according to the user biological characteristic;
Said TPM is used for directly obtaining said user biological condition code from said living things feature recognition equipment, and is used for combining the user biological condition code to carry out instruction and needs authentication verification information instruction that needs obtain authentication information according to the instruction of TSP module;
The corresponding relation of said living things feature recognition plant maintenance one random number and said user biological condition code; Said random number is obtained through irrelevant authentication protocol of object or object relevant authentication agreement by said TSP module, and sends to said living things feature recognition equipment with the finger scan instruction; TPM sends same random number to living things feature recognition equipment and obtains corresponding with it biometric code;
When execution need be obtained the instruction of authentication information, said living things feature recognition equipment specifically was used to obtain the first user biological condition code, and calculated first cryptographic hash according to the said first user biological condition code; Said TPM specifically is used for obtaining the first user biological condition code and first cryptographic hash from said living things feature recognition equipment, and execution need be obtained the instruction of authentication information;
When execution needed the authentication verification information instruction, said living things feature recognition equipment specifically was used to obtain the second user biological condition code, compared with the tabulation of the user biological condition code of internal maintenance, calculated second cryptographic hash after finding the biological condition code of coupling; Said TPM specifically is used to obtain said second cryptographic hash, and is used for more said first cryptographic hash and second cryptographic hash, when the two is consistent, carries out the said authentication verification information instruction that needs.
2. system according to claim 1 is characterized in that, instruction and execution that said execution need be obtained authentication information need the authentication verification information instruction to substitute as follows:
When execution need be obtained the instruction of authentication information, said living things feature recognition equipment specifically was used to obtain the first user biological condition code; Said TPM specifically is used for obtaining the first user biological condition code from said living things feature recognition equipment, and calculates the instruction that the execution needs obtain authentication information after first cryptographic hash according to the said first user biological condition code;
When execution needed the authentication verification information instruction, said living things feature recognition equipment specifically was used to obtain the second user biological condition code, compared with the user biological condition code tabulation of internal maintenance, found the biological condition code of coupling; Said TPM calculates second cryptographic hash, more said first cryptographic hash and second cryptographic hash after specifically being used to obtain the biological condition code of coupling, and is used for when the two is consistent, carrying out the said authentication verification information instruction that needs.
3. system according to claim 1 and 2 is characterized in that, said living things feature recognition equipment and said TPM carry out information interaction through general input/output signal.
4. system according to claim 1 and 2 is characterized in that, said user biological characteristic includes but not limited to fingerprint, iris, face type, palmmprint and sound.
5. system according to claim 1 and 2 is characterized in that, said living things feature recognition equipment is connected with said TSP module through a biological characteristic identificating equipment driver module, and obtains said user biological condition code according to the instruction of said TSP module.
6. an authentication method that utilizes reliable platform module is characterized in that, living things feature recognition equipment obtains the user biological characteristic, and forms the user biological condition code according to the user biological characteristic; TPM directly obtains said user biological condition code from said living things feature recognition equipment, and combines user biological condition code execution needs to obtain the instruction and the needs authentication verification information instruction of authentication information according to the instruction of TSP module;
When execution need be obtained the instruction of authentication information, said living things feature recognition equipment obtained the first user biological condition code and calculates first cryptographic hash according to the said first user biological condition code; Said TPM obtains the instruction that execution need be obtained authentication information after the first user biological condition code and first cryptographic hash from said living things feature recognition equipment;
When execution needed the authentication verification information instruction, said living things feature recognition equipment obtained the second user biological condition code, compared with the tabulation of the user biological condition code of internal maintenance, calculated second cryptographic hash after finding the biological condition code of coupling; Said TPM obtains said second cryptographic hash, and more said first cryptographic hash and second cryptographic hash, when the two is consistent, carries out the said authentication verification information instruction that needs.
7. method according to claim 6 is characterized in that, instruction and execution that said execution need be obtained authentication information need the authentication verification information instruction to substitute as follows:
When execution need be obtained the instruction of authentication information, said living things feature recognition equipment obtained the first user biological condition code; Said TPM obtains the first user biological condition code from said living things feature recognition equipment, and calculates the instruction that the execution needs obtain authentication information after first cryptographic hash according to the said first user biological condition code;
When execution needed the authentication verification information instruction, said living things feature recognition equipment obtained the second user biological condition code, compared with the user biological condition code tabulation of internal maintenance, found the biological condition code of coupling; Said TPM calculates second cryptographic hash, more said first cryptographic hash and second cryptographic hash after obtaining the biological condition code of coupling, and the two carries out the said authentication verification information instruction that needs when consistent.
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CN103577738B (en) * 2013-08-26 2016-04-13 浙江工业大学 Based on hereditary automatic mold clustering analysis without template biological key generation method
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