CN103606223A - Card authentication method and device - Google Patents
Card authentication method and device Download PDFInfo
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- CN103606223A CN103606223A CN201310573284.9A CN201310573284A CN103606223A CN 103606223 A CN103606223 A CN 103606223A CN 201310573284 A CN201310573284 A CN 201310573284A CN 103606223 A CN103606223 A CN 103606223A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012795 verification Methods 0.000 claims description 56
- 230000005540 biological transmission Effects 0.000 description 11
- 238000005457 optimization Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The invention is adaptable to the field of parking, and provides a card authentication method and device. The method includes that a parking reader reads a random number and sends the read random number to a PSAM card; the PSAM card encrypts the random number and sends the encrypted random number to the parking reader; the parking reader decrypts and authorizes the encrypted random number, when authentication is successful, the parking reader acquires authorities of the PSAM card. According to the method, keys are stored in the PSAM card and the parking reader, different keys are utilized to encrypt and decrypt the random number, encryption and decryption are matched to complete card authentication, and a card authentication method with higher safe performances is provided.
Description
Technical field
The invention belongs to field, parking lot, relate in particular to a kind of card authentication method and device.
Background technology
The protection of card key is the key of parking lot safe operation.In existing parking lot, the card of application is non-contact IC card normally.Common card key authentication method is that mainboard powers on, and reads the key in hardware encipher dog or similar storer, is existed in internal memory.When having user card punching, the key in contrast card and the key in internal memory, realize the control and management of parking lot card.Because the key of non-contact IC card and the authentication of algorithm are in application program, the algorithm of application program and secret key must be delivered in system operator hand, if there is system business's attack, once secret key and application program are cracked, the security of whole system just cannot guarantee.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of card authentication method and device, by secret key being stored in respectively in PSAM card and parking lot read write line, use respectively different secret keys to complete the encryption and decryption to random number, by the identification to card that has been used in conjunction with of encryption and decryption, provide the card authentication method of greater security energy.
The embodiment of the present invention is achieved in that a kind of card authentication method, and described method comprises the steps:
Parking lot read write line reads random number, and the described random number reading is sent to PSAM card;
PSAM card is encrypted described random number, and the random number after encrypting is sent to parking lot read write line;
The random number of parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains and reads PSAM card authority.
Further, described parking lot read write line reads random number, and the step that the described random number reading is sent to PSAM card comprises:
Parking lot read write line sends and reads random number instruction to CPU card, and receives the random number that CPU card sends;
Parking lot read write line is sent to PSAM card by the described random number reading.
Further, described PSAM card is encrypted described random number, and the step that the random number after encrypting is sent to parking lot read write line is comprised:
PSAM cartoon is crossed random number described in the secret key pair carrying and is encrypted;
PSAM card is sent to parking lot read write line by the random number after encrypting by ciphertext.
Further, the random number of described parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains the step that reads PSAM card authority and comprises:
Parking lot read write line is decrypted by the random number after encrypting described in secret key pair, and the random number after deciphering is carried out to verification;
When verification succeeds, parking lot read write line obtains and reads PSAM card authority.
Another object of the embodiment of the present invention is to provide a kind of card authenticate device, and described device comprises:
Random number reading unit, reads random number for parking lot read write line, and the described random number reading is sent to PSAM card;
Ciphering unit, is encrypted described random number for PSAM card, and the random number after encrypting is sent to parking lot read write line;
Decryption verification unit, the random number for parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains and reads PSAM card authority.
Further, described random number reading unit comprises:
Random number acquiring unit, sends and reads random number instruction to CPU card for parking lot read write line, and receives the random number that CPU card sends;
Random number transmitting element, is sent to PSAM card for parking lot read write line by the described random number reading.
Further, described ciphering unit comprises:
Secret key ciphering unit, crosses random number described in the secret key pair carrying and is encrypted for PSAM cartoon;
Ciphertext transmitting element, is sent to parking lot read write line by the random number after encrypting by ciphertext for PSAM card.
Further, described decryption verification unit comprises:
Decryption unit, is decrypted by the random number after encrypting described in secret key pair for parking lot read write line, and the random number after deciphering is carried out to verification;
Checking card reading unit, for when the verification succeeds, parking lot read write line obtains and reads PSAM card authority.
The embodiment of the present invention is by a kind of card authentication method and device, by being dispersed in the encryption of the complete paired data of secret key in PSAM card, data after encryption are decrypted by the secret key being dispersed in the read write line of parking lot again, finally the data of deciphering are verified, the authentication of realization to card, by the secret key disperseing, complete respectively different encryption and decryption and work, improve the security performance of card authentication.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of a kind of card authentication method of providing of first embodiment of the invention;
Fig. 2 is the realization flow figure of a kind of card authentication method of providing of second embodiment of the invention;
Fig. 3 is the structural drawing of a kind of card authenticate device of providing of third embodiment of the invention; And
Fig. 4 is the structural drawing of a kind of card authenticate device of providing of fourth embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
embodiment mono-:
Fig. 1 shows the realization flow of a kind of card authentication method that first embodiment of the invention provides, and details are as follows:
S101, parking lot read write line reads random number, and the described random number reading is sent to PSAM card.
Parking lot read write line reads data, as this, carry out the data of card authentication identification, wherein for the employing random data of the data optimization reading as verify data, by adopting random data can further improve the safety certification rank of system, after reading random number, the random number reading is sent to PSAM (Purchase Secure Access Module) terminal security control module card.
S102, PSAM card is encrypted described random number, and the random number after encrypting is sent to parking lot read write line.
After PSAM card acquires the data of parking lot read write line transmission, by the secret key pair in PSAM card, data are encrypted, PSAM cassette tape has the secret key being encrypted and the respective algorithms being encrypted, and after the encryption of the complete paired data of PSAM card, the random number after encrypting is sent to parking lot read write line.
S103, the random number of parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains and reads PSAM card authority.
Parking lot read write line is decrypted encrypting later random data, and the verification of complete paired data, parking lot read write line is with the algorithm of the secret key of corresponding deciphering and deciphering, by secret key, coordinate decipherment algorithm, can be by the data deciphering after PSAM card encryption out, after decrypting data, the data of deciphering are carried out to verification, when verification succeeds, parking lot read write line just can obtain the authority that reads of PSAM card.
The embodiment of the present invention by the way, a kind of card authentication method, first parking lot read write line sends a random number to PSAM card, PSAM cartoon is crossed secret key pair random number and is encrypted, data after encrypting are sent to parking lot read write line, the data that parking lot read write line is encrypted by secret key pair are again decrypted, and the data after deciphering are carried out to verification, after verification succeeds, parking lot read write line acquires the authority that reads to PSAM card, because secret key is dispersed in respectively PSAM card and parking lot read write line, different secret keys complete respectively different work, by being used in conjunction with just of secret key, can complete the identification to card, improved in this way the overall security of authentication card.
embodiment bis-:
Fig. 2 shows the realization flow of a kind of card authentication method that second embodiment of the invention provides, and details are as follows:
S201, parking lot read write line sends and reads random number instruction to CPU card, and receives the random number that CPU card sends.
When PSAM calorie requirement having been detected and authenticated, first parking lot read write line sends a reading out data instruction to the CPU card of read write line inside, parking lot, the data optimization reading select random data, adopt random data further to ensure the level of security of whole system, by sending and read random number instruction to CPU card, CPU card sends a read-write cell of counting at random parking lot read write line, and read-write cell receives the random data that CPU card sends over.
S202, parking lot read write line is sent to PSAM card by the described random number reading.
When parking lot read write line acquires a random data, parking lot read write line sends to random data on the PSAM card detecting, security during wherein for further raising data transmission, parking lot read write line, when data are sent to PSAM card, can adopt ciphertext to send.
S203, PSAM cartoon is crossed random number described in the secret key pair carrying and is encrypted.
After PSAM is stuck in and receives the random number that parking lot read write line sends over, PSAM card is encrypted by the next random number of secret key pair transmission of PSAM card inside, and the process of encryption is specially by the secret key in PSAM card and coordinates the cryptographic algorithm in PSAM card to be encrypted random data.
S204, PSAM card is sent to parking lot read write line by the random number after encrypting by ciphertext.
PSAM card is sent to parking lot read write line by the later data of encryption, takes a step forward and can carry out ciphertext encapsulation to the data after encrypting sending to parking lot read write line, and the data acquisition after encrypting is sent to parking lot read write line by the form of ciphertext.
S205, parking lot read write line is decrypted by the random number after encrypting described in secret key pair, and the random number after deciphering is carried out to verification.
Parking lot read write line receives the data that PSAM card sends, by the data that in the secret key in the read write line of parking lot and parking lot read write line, decipherment algorithm sends PSAM card, be decrypted, the random number after deciphering completes, deciphering being obtained is carried out verification, to guarantee the correctness of decrypting process computing, wherein deciphering and the process of verification are that CPU card by read write line inside, parking lot carries out, after CPU card deciphering verification succeeds in the read write line of parking lot, the result of verification is sent to parking lot read write line, then is verified by parking lot read write line and PSAM card.
S206, when verification succeeds, parking lot read write line obtains and reads PSAM card authority
When parking lot read write line and PSAM card are verified and be verified, i.e. after parking lot read write line deciphering, the result of verification is correct, and the authentication between parking lot read write line and PSAM card is passed through, and now parking lot read write line acquires the authority that reads PSAM card.
The embodiment of the present invention by the way, a kind of card authentication method, parking lot read write line and PSAM card are used in conjunction with, parking lot read write line sends random data to PSAM card, PSAM card is encrypted data and the data of encryption is sent to parking lot read write line, parking lot read write line enters to decipher verification by oneself secret key and decipherment algorithm to the data of PSAM card transmission, again result is verified with PSAM card, the different secret key that disposes due to PSAM card and the dispersion of parking lot read write line, adopt again different algorithms for encryption and decryptions to verify simultaneously, secret key and enciphering and deciphering algorithm need to be used in conjunction with and just can calculate correct result and complete authentication, parking lot read write line comprises read-write equipment and the CPU card that carries out data transmission with PSAM card, CPU card is for sending random data, simultaneously also for data are decrypted, by by secret key with algorithm is specifically dispersed in CPU card and PSAM card inside is used in conjunction with, when data transmission is verified, only the read-write equipment by parking lot read write line transmits checking by result simultaneously, thereby farthest guarantee the security of whole system.
embodiment tri-:
Fig. 3 shows the structural drawing of a kind of card authenticate device that third embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
Random number reading unit 31, reads random number for parking lot read write line, and the described random number reading is sent to PSAM card.
Random number reading unit reads data for parking lot read write line, as this, carry out the data of card authentication identification, wherein for the employing random data of the data optimization reading as verify data, by adopting random data can further improve the safety certification rank of system, after reading random number, the random number reading is sent to PSAM (Purchase Secure Access Module) terminal security control module card.
Ciphering unit 32, is encrypted described random number for PSAM card, and the random number after encrypting is sent to parking lot read write line.
After ciphering unit acquires the data of parking lot read write line transmission for PSAM card, by the secret key pair in PSAM card, data are encrypted, PSAM cassette tape has the secret key being encrypted and the respective algorithms being encrypted, and after the encryption of the complete paired data of PSAM card, the random number after encrypting is sent to parking lot read write line.
Decryption verification unit is decrypted encrypting later random data for parking lot read write line, and the verification of complete paired data, parking lot read write line is with the algorithm of the secret key of corresponding deciphering and deciphering, by secret key, coordinate decipherment algorithm, can be by the data deciphering after PSAM card encryption out, after decrypting data, the data of deciphering are carried out to verification, when verification succeeds, parking lot read write line just can obtain the authority that reads of PSAM card.
The embodiment of the present invention by the way, a kind of card authenticate device, first parking lot read write line sends a random number to PSAM card, PSAM cartoon is crossed secret key pair random number and is encrypted, data after encrypting are sent to parking lot read write line, the data that parking lot read write line is encrypted by secret key pair are again decrypted, and the data after deciphering are carried out to verification, after verification succeeds, parking lot read write line acquires the authority that reads to PSAM card, because secret key is dispersed in respectively PSAM card and parking lot read write line, different secret keys complete respectively different work, by being used in conjunction with just of secret key, can complete the identification to card, improved in this way the overall security of authentication card.
embodiment tetra-:
Fig. 4 shows the structural drawing of a kind of card authenticate device that fourth embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
Random number acquiring unit 41, sends and reads random number instruction to CPU card for parking lot read write line, and receives the random number that CPU card sends.
Random number acquiring unit is for when PSAM calorie requirement having been detected and authenticated, first parking lot read write line sends a reading out data instruction to the CPU card of read write line inside, parking lot, the data optimization reading select random data, adopt random data further to ensure the level of security of whole system, by sending and read random number instruction to CPU card, CPU card sends a read-write cell of counting at random parking lot read write line, and read-write cell receives the random data that CPU card sends over.
Random number transmitting element 42, is sent to PSAM card for parking lot read write line by the described random number reading.
Random number transmitting element is for acquiring a random data when parking lot read write line, parking lot read write line sends to random data on the PSAM card detecting, security during wherein for further raising data transmission, parking lot read write line, when data are sent to PSAM card, can adopt ciphertext to send.
Secret key ciphering unit 43, crosses random number described in the secret key pair carrying and is encrypted for PSAM cartoon.
After secret key ciphering unit is stuck in and receives the random number that parking lot read write line sends over for PSAM, PSAM card is encrypted by the next random number of secret key pair transmission of PSAM card inside, and the process of encryption is specially by the secret key in PSAM card and coordinates the cryptographic algorithm in PSAM card to be encrypted random data.
Ciphertext transmitting element is sent to parking lot read write line for PSAM card by the later data of encryption, take a step forward and can carry out ciphertext encapsulation to the data after encrypting sending to parking lot read write line, the data acquisition after encrypting is sent to parking lot read write line by the form of ciphertext.
Decryption unit receives for parking lot read write line the data that PSAM card sends, by the data that in the secret key in the read write line of parking lot and parking lot read write line, decipherment algorithm sends PSAM card, be decrypted, the random number after deciphering completes, deciphering being obtained is carried out verification, to guarantee the correctness of decrypting process computing, wherein deciphering and the process of verification are that CPU card by read write line inside, parking lot carries out, after CPU card deciphering verification succeeds in the read write line of parking lot, the result of verification is sent to parking lot read write line, then is verified by parking lot read write line and PSAM card.
Checking card reading unit 46, for when the verification succeeds, parking lot read write line obtains and reads PSAM card authority.
Checking card reading unit is for when parking lot read write line and PSAM card are verified and be verified, be that after the read write line deciphering of parking lot, the result of verification is correct, authentication between parking lot read write line and PSAM card is passed through, and now parking lot read write line acquires the authority that reads PSAM card.
The embodiment of the present invention by the way, a kind of card authenticate device, parking lot read write line and PSAM card are used in conjunction with, parking lot read write line sends random data to PSAM card, PSAM card is encrypted data and the data of encryption is sent to parking lot read write line, parking lot read write line enters to decipher verification by oneself secret key and decipherment algorithm to the data of PSAM card transmission, again result is verified with PSAM card, the different secret key that disposes due to PSAM card and the dispersion of parking lot read write line, adopt again different algorithms for encryption and decryptions to verify simultaneously, secret key and enciphering and deciphering algorithm need to be used in conjunction with and just can calculate correct result and complete authentication, by secret key and algorithm are disperseed to be used in conjunction with, when verifying, data transmission only result is transmitted to checking simultaneously, thereby farthest guarantee the security of whole system.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be stored in computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a card authentication method, is characterized in that, described method comprises the steps:
Parking lot read write line reads random number, and the described random number reading is sent to PSAM card;
PSAM card is encrypted described random number, and the random number after encrypting is sent to parking lot read write line;
The random number of parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains and reads PSAM card authority.
2. the method for claim 1, is characterized in that, described parking lot read write line reads random number, and the step that the described random number reading is sent to PSAM card comprises:
Parking lot read write line sends and reads random number instruction to CPU card, and receives the random number that CPU card sends;
Parking lot read write line is sent to PSAM card by the described random number reading.
3. the method for claim 1, is characterized in that, described PSAM card is encrypted described random number, and the step that the random number after encrypting is sent to parking lot read write line is comprised:
PSAM cartoon is crossed random number described in the secret key pair carrying and is encrypted;
PSAM card is sent to parking lot read write line by the random number after encrypting by ciphertext.
4. the method for claim 1, is characterized in that, the random number of described parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains the step that reads PSAM card authority and comprises:
Parking lot read write line is decrypted by the random number after encrypting described in secret key pair, and the random number after deciphering is carried out to verification;
When verification succeeds, parking lot read write line obtains and reads PSAM card authority.
5. a card authenticate device, is characterized in that, described device comprises:
Random number reading unit, reads random number for parking lot read write line, and the described random number reading is sent to PSAM card;
Ciphering unit, is encrypted described random number for PSAM card, and the random number after encrypting is sent to parking lot read write line;
Decryption verification unit, the random number for parking lot read write line after to described encryption is decrypted and verification, and when verification succeeds, parking lot read write line obtains and reads PSAM card authority.
6. device as claimed in claim 5, is characterized in that, described random number reading unit comprises:
Random number acquiring unit, sends and reads random number instruction to CPU card for parking lot read write line, and receives the random number that CPU card sends;
Random number transmitting element, is sent to PSAM card for parking lot read write line by the described random number reading.
7. device as claimed in claim 5, is characterized in that, described ciphering unit comprises:
Secret key ciphering unit, crosses random number described in the secret key pair carrying and is encrypted for PSAM cartoon;
Ciphertext transmitting element, is sent to parking lot read write line by the random number after encrypting by ciphertext for PSAM card.
8. device as claimed in claim 5, is characterized in that, described decryption verification unit comprises:
Decryption unit, is decrypted by the random number after encrypting described in secret key pair for parking lot read write line, and the random number after deciphering is carried out to verification;
Checking card reading unit, for when the verification succeeds, parking lot read write line obtains and reads PSAM card authority.
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| CN201310573284.9A CN103606223B (en) | 2013-11-15 | 2013-11-15 | A kind of card authentication method and device |
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| CN201310573284.9A CN103606223B (en) | 2013-11-15 | 2013-11-15 | A kind of card authentication method and device |
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| CN103606223A true CN103606223A (en) | 2014-02-26 |
| CN103606223B CN103606223B (en) | 2016-09-21 |
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| CN107610257A (en) * | 2017-08-07 | 2018-01-19 | 广州华工信息软件有限公司 | A kind of PSAM arrays cryptographic calculation method of servicing, storage medium and system |
| CN108052841A (en) * | 2017-12-29 | 2018-05-18 | 天津市劲螭科技发展股份有限公司 | A kind of consumer device for CPU card |
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