CN103731260A - Method and system for safe downloading of TMK - Google Patents

Method and system for safe downloading of TMK Download PDF

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Publication number
CN103731260A
CN103731260A CN201310741949.2A CN201310741949A CN103731260A CN 103731260 A CN103731260 A CN 103731260A CN 201310741949 A CN201310741949 A CN 201310741949A CN 103731260 A CN103731260 A CN 103731260A
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China
Prior art keywords
key
random number
terminal
transmission security
module
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CN201310741949.2A
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Chinese (zh)
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CN103731260B (en
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苏文龙
孟陆强
陈瑞兵
姚承勇
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Fujian Landi Commercial Equipment Co Ltd
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Fujian Landi Commercial Equipment Co Ltd
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Priority claimed from CN2013100846716A external-priority patent/CN103220270A/en
Priority claimed from CN2013100846538A external-priority patent/CN103237005A/en
Priority claimed from CN2013100846735A external-priority patent/CN103220271A/en
Priority claimed from CN2013100843972A external-priority patent/CN103237004A/en
Application filed by Fujian Landi Commercial Equipment Co Ltd filed Critical Fujian Landi Commercial Equipment Co Ltd
Priority to CN201310741949.2A priority Critical patent/CN103731260B/en
Priority to PCT/CN2014/073225 priority patent/WO2014139412A1/en
Publication of CN103731260A publication Critical patent/CN103731260A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/20—Point-of-sale [POS] network systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/321—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/061—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]

Abstract

The invention provides a method for safe downloading of a TMK. The method comprises the steps that a TK is generated by a POS terminal; the TK is collected by an operation terminal and uploaded to an MTMS; the TK is managed by the MTMS in a unified mode and transmitted to a corresponding KMS; remote downloading of the TMK is started by the POS terminal; bidirectional authentication is conducted on the POS terminal and the KMS through an AUK and after authentication, the TMK is transmitted to the POS terminal through the KMS. The method has the advantages that the TK is uploaded by the POS terminal so that the TMK can be remotely downloaded; by the adoption of the MTMS, management and uploading of the TK is greatly facilitated; it is guaranteed that the TK is transmitted to the corresponding KMS. Bidirectional authentication is further conducted between the POS terminal and the KMS before master key transmission is conducted, and the downloading safety of a master key is further improved.

Description

A kind of terminal master key TMK method for safely downloading and system
Technical field
The present invention relates to E-Payment field, relate in particular to a kind of terminal master key TMK method for safely downloading and system.
Background technology
(BANK Card) is more and more universal as the means of payment for bank card, common bank card paying system comprises point of sales terminal (Point Of Sale, POS), POS receives single system (POSP), code keypad (PIN PAD) and hardware encipher machine (Hardware and Security Module, HSM).Wherein POS terminal can be accepted bank card information, has communication function, and the instruction of accepting teller completes financial transaction information and the equipment of exchange for information about; POS receives single system POS terminal is managed concentratedly, comprises parameter downloads, and key is downloaded, and accepts, processes or forward the transaction request of POS terminal, and to POS terminal loopback transaction results information, is the system of centralized management and trading processing; Code keypad (PIN PAD) is that the relevant key of various financial transactions is carried out to safe storage protection, and the safety means that PIN are encrypted to protection; Hardware encipher machine (HSM) is to the peripheral hardware equipment that is encrypted of transmission data, for correctness and the storage key of encryption and decryption, checking message and the document source of PIN.Personal identification code (Personal Identification Number, PIN), personal identification number, is the data message of identifying holder's identity legitimacy in on-line transaction, in cyber-net system, any link does not allow to occur in mode expressly; Terminal master key (Terminal Master Key, TMK), during POS terminal works, the master key that working key is encrypted, encrypting storing is in system database; POS terminal is widely used in bank card and pays occasion, such as manufacturer's shopping, hotel's lodging etc., is a kind of indispensable modernization means of payment, has incorporated the various occasions of people's life.Bank card; debit card particularly; generally all by holder, be provided with PIN; in carrying out payment process; POS terminal is except above sending the data such as magnetic track information of bank card; also want holder to input the checking holder's of PINGong issuing bank identity legitimacy, guarantee bank card safety of payment, protection holder's property safety.In order to prevent that PIN from revealing or being cracked; requirement is from terminal to issuing bank in whole information interactive process; whole process is carried out safety encipher protection to PIN; do not allow any link in computer network system; PIN occurs in mode expressly, so the POS terminal of the PIN of acceptance input at present all requires to be equipped with key management system.
The key code system of POS terminal is divided into secondary: terminal master key (TMK) and working key (WK).Wherein TMK is encrypted protection to WK.Every POS terminal has unique TMK, must have safeguard protection, and assurance can only also participate in calculating by write device, can not read; TMK is a very crucial root key, if TMK is intercepted, working key is just cracked than being easier to, by serious threat bank card safety of payment.So can secure download TMK to POS terminal, become the key of whole POS terminal security.
For taking precautions against Key Exposure risk, the safe machine room that the download of terminal master key must be controlled at administrative center carries out, by the artificial download terminal master key of concentrating.Thereby bring maintenance centre's machine room workload large; After equipment dispatches from the factory, need to be transported to administrative center's safe machine room download key and just can be deployed to trade company, cost of transportation rises; In order to concentrate lower dress key, need a large amount of staff and operating time, the problem such as maintenance cost is large, maintenance period is long.
Summary of the invention
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A terminal master key TMK method for safely downloading, comprises step: S1, TK upload flow process; S2, TMK download flow process; Wherein, step S1 specifically comprises: S11, MTMS system call the first hardware encipher machine produce PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad; S12, MTMS system call the first hardware encipher machine, KMS system call the second hardware encipher machine, in hardware encipher machine separately, MTMS System Privileges component and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine and the second hardware encipher machine in the lump; S13, POS terminal are called code keypad and are produced symmetrical transmission security key TK, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK; S14, POS terminal are called the code keypad Pu encrypted transmission cipher key T K that uses public-key and are generated the first transmission security key ciphertext Ctk_Pu, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system; S15, MTMS system by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database; S16, MTMS system call the first hardware encipher machine use private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtain transmission security key TK, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system; The terminal serial number SN that S17, KMS system send MTMS system is stored in KMS database associatedly with the second transmission security key ciphertext Ctk_pk; Step S2 specifically comprises: S21, POS terminal are sent to KMS system by terminal serial number SN and the application of download master key; S22, KMS system receive the terminal serial number SN of POS terminal transmission and download after master key application, inquire about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN; S23, KMS system call the second hardware encipher machine use MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine; After S24, KMS system acquisition transmission security key TK, calling the second hardware encipher machine uses authenticate key AUK and POS terminal to carry out two-way authentication; If S25 authentication is passed through, KMS system call the second hardware encipher machine uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal; S26, POS terminal are called code keypad and are used traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in code keypad.
Another technical solution used in the present invention is:
A terminal master key TMK secure download system, comprising: the first hardware encipher machine, the second hardware encipher machine, POS terminal, the MTMS system being connected with POS terminal communication and the KMS system being connected with MTMS system communication; Described POS terminal comprises TK generation module, the upper transmission module of a TK, master key download request module, two-way authentication A module and TMK receiver module, described MTMS system comprises the upper transmission module of public and private key generation module, arranging key A module and the 2nd TK, and described KMS system comprises arranging key B module, TK receiver module, request respond module, two-way authentication B module and TMK sending module; Described the first hardware encipher machine is for supplying MTMS system call, and described the second hardware encipher machine is for supplying KMS system call; Public and private key generation module is used for calling the first hardware encipher machine and produces PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad; Arranging key A module and arranging key B module are used for calling the first hardware encipher machine and the second hardware encipher machine, in hardware encipher machine separately, MTMS System Privileges component and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine and the second hardware encipher machine in the lump; TK generation module is used for calling code keypad and produces symmetrical transmission security key TK, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK; The upper transmission module of the one TK is used for calling the code keypad Pu encrypted transmission cipher key T K that uses public-key and generates the first transmission security key ciphertext Ctk_Pu, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system; The upper transmission module of the 2nd TK for by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database; The upper transmission module of the 2nd TK is used for calling the first hardware encipher machine and uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu acquisition transmission security key TK, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system; The terminal serial number SN that TK receiver module is used for MTMS system to send is stored in KMS database associatedly with the second transmission security key ciphertext Ctk_pk; Master key download request module is for being sent to KMS system by terminal serial number SN and the application of download master key; Request respond module, for receiving the terminal serial number SN of POS terminal transmission when KMS system and downloading after master key application, is inquired about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN; Request respond module is used MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring for calling the second hardware encipher machine, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine; Two-way authentication A module and two-way authentication B module are for obtaining after transmission security key TK when KMS system, and the second hardware encipher machine that calls uses authenticate key AUK and POS terminal to carry out two-way authentication; TMK sending module is for when authentication is passed through, and the second hardware encipher machine that calls uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal; TMK receiver module is used for calling code keypad and uses traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in to code keypad.
Beneficial effect of the present invention is: the essential technological deficiency of concentrating download terminal master key that is different from prior art, the present invention is by POS terminal upload transfers cipher key T K, after encrypting terminal master key TMK by TK, download to POS terminal, realized remote download terminal master key TMK, after having avoided POS terminal by concentrated download master key, cloth is put into trade company again, logistics cost and concentrated download-maintenance cost have been reduced, and before transmitting master key between POS terminal and KMS, also carried out two-way authentication, improved the download safety of master key.Further, the present invention unifies to gather and upload to TK by MTMS system, collection and the management of TK have been facilitated, simultaneously, between POS terminal and KMS system, by MTMS system, carry out TK and upload, avoided every POS terminal and the direct communication of KMS system, alleviated work load and the difficulty of KMS system, facilitate KMS system identification to communicate with the identification of connecting object, improved the accurate transmission of TK and the operating efficiency of KMS system.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of terminal master key TMK of an embodiment of the present invention secure download system;
Fig. 2 is the structured flowchart of two-way authentication A module in Fig. 1;
Fig. 3 is the structured flowchart of two-way authentication B module in Fig. 1;
Fig. 4 is the method general flow chart of a kind of terminal master key TMK of an embodiment of the present invention method for safely downloading;
Fig. 5 is the concrete steps flow chart of step S1 in Fig. 4;
Fig. 6 is the concrete steps flow chart of step S2 in Fig. 4.
Main element symbol description
10:POS terminal; 20:MTMS system; 30:KMS system; 40: the first hardware encipher machines; 50: the second hardware encipher machines; 101:TK generation module; 102: the upper transmission modules of a TK; 103: master key download request module; 104:TMK receiver module; 105: two-way authentication A module; 201: public and private key generation module; 202: arranging key A module; 203: the upper transmission modules of two TK; 301: arranging key B module; 302:TK receiver module; 303: request respond module; 304: two-way authentication B module; 305:TMK sending module; 1051: the first random number generation units; 1052: the first data transmit-receive unit; 1053: the first encryption/decryption elements; 1054: the first judging units; 3041: the second random number generation units; 3042: the second data transmit-receive unit; 3043: the second encryption/decryption elements; 3044: the second judging units.
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
First, the abbreviation the present invention relates to and Key Term are defined and are illustrated:
The abbreviation of AUK:Authentication Key, authentication authorization and accounting key, for the two-way authentication between PINPAD and key management system KMS;
CA center: so-called CA(Certificate Authority) center, it is to adopt PKI(Public Key Infrastructure) public key infrastructure technology, network ID authentication service is provided specially, be responsible for signing and issuing and managing digital certificate, and third party's trust authority with authoritative and fairness, its effect is just as the company of issue certificates in our actual life, as passport is handled mechanism;
The abbreviation of HSM:High Security Machine, high safety means are hardware encipher machine in this system;
KMS system: Key Management System, key management system, for office terminal master key TMK;
The abbreviation of MAK:Mac Key, MAC computation key, consults to determine 24 byte symmetric keys with client, for the MAC value of TK between MTMS system and KMS system, calculates;
MTMS: full name Material Tracking Management System, Tracing Material management system is mainly used when plant produced;
The abbreviation of PIK:Pin Key, Pin encryption key, is a kind of of working key;
PINPAD: code keypad;
The abbreviation of PK:Protect Key, Protective Key, consults to determine with client, 24 byte symmetric keys.Encrypted transmission for TK between MTMS/TCS and KMS;
The abbreviation of POS:Point Of Sale, i.e. point-of-sale terminal
SNpinpad: the sequence number of code keypad, when PINPAD is built-in, SNpos is consistent with POS terminal serial number;
SN: the sequence number of payment terminal;
The abbreviation of TEK:Transmission Encrypt Key, i.e. traffic encryption key, 24 byte symmetric keys, for the encrypted transmission of TMK between PINPAD and key management system KMS;
The abbreviation of TK:Transmission Key, i.e. transmission security key.Transmission security key is comprised of traffic encryption key TEK and two-way authentication key A UK;
The abbreviation of TMS:Terminal Management System, i.e. terminal management system, for completing the functions such as payment terminal information management, software and parameter configuration, remote download, the management of terminal running state information, remote diagnosis;
The abbreviation of TMK:Terminal Master Key, i.e. terminal master key, for payment terminal with pay the encrypted transmission of receiving working key between single system;
Safe house: have higher security level other, for the room of service device, this room needs just can enter after authentication.
Intellective IC card: be CPU card, integrated circuit in card comprises central processor CPU, programmable read only memory EEPROM, random access memory ram and is solidificated in the card internal operating system COS (Chip Operating System) in read only memory ROM, and in card, data are divided into outside and read and inter-process part.
Symmetric key: the both sides that transmit and receive data must use identical key to being expressly encrypted and decrypt operation.Symmetric key encryption algorithm mainly comprises: DES, 3DES, IDEA, FEAL, BLOWFISH etc.
Unsymmetrical key: rivest, shamir, adelman needs two keys: public-key cryptography (private key Public key) and private cipher key (PKI Private key).Public-key cryptography and private cipher key are a pair of, if data are encrypted with public-key cryptography, only have with corresponding private cipher key and could decipher; If data are encrypted with private cipher key, only have so with corresponding public-key cryptography and could decipher.Because what encryption and decryption were used is two different keys, so this algorithm is called rivest, shamir, adelman.The basic process that rivest, shamir, adelman is realized confidential information exchange is: Party A generates a pair of secret keys handle wherein is open as Public key to other side; After using this key to be encrypted confidential information, the Party B who obtains this Public key sends to again Party A; Another private key that Party A preserves with oneself is again decrypted the information after encrypting.Party A sends to Party B after can using Party B's PKI to be encrypted confidential information again; Party B is decrypted the information after encrypting with the private spoon of oneself again.Main algorithm has RSA, Elgamal, knapsack algorithm, Rabin, D-H, ECC(elliptic curve encryption algorithm).
RSA: a kind of asymmetric key algorithm.RSA public key encryption algorithm is by Ron Rivest, Adi Shamirh and Len Adleman, in (Massachusetts Institute Technology), to be developed for 1977.RSA is named the name from they three of exploitation.RSA is the most influential public key encryption algorithm at present, and it can resist up to the present known all cryptographic attacks, by ISO, is recommended as public key data encryption standard.RSA Algorithm is true based on a foolproof number theory: two large prime numbers are multiplied each other very easy.RSA Algorithm be first can be simultaneously for encrypting the algorithm with digital signature, also easy to understand and operation.RSA is studied public key algorithm the most widely, from proposing three ten years till now, has experienced the test of various attack, for people accept, generally believes it is one of current classic PKI scheme gradually.
TDES Triple-DES:DES is a kind of symmetric encipherment algorithm, and key is 8 bytes.TDES is the cryptographic algorithm based on DES, and its key is 16 bytes or 24 bytes.TDES/3DES is the abbreviated expression (being triple DES) of English TripleDES, and DES is that English Data Encryption Standard(counts encryption standard) abbreviated expression.DES is a kind of symmetric key encryption algorithm, i.e. the data encryption key cryptographic algorithm identical with decruption key.DESYou IBM Corporation develops and discloses at 20 century 70s, and for U.S. government adopts, Bing Bei NBS and ANSI (ANSI) are admitted subsequently.TDES/3DES is a kind of pattern of des encryption algorithm, and it uses the key of 3 64 to carry out three encryptions to data.It is a safer distortion of DES.
For solving the technical problem existing in background technology, the present invention adopts a kind of new master key download scenarios, by POS terminal, produce at random TK(Transmission Key, transmission security key), TK after producing is stored in the code keypad of POS terminal, and TK is sent to KMS(Key Management System by transmission means required under various application scenarioss, key management system, for office terminal master key TMK).
When POS terminal to apply download terminal master key TMK, KMS system is used TK to encrypt terminal master key TMK, and the terminal master key ciphertext after encrypting is sent to POS terminal, POS terminal is decrypted master key ciphertext with TK after receiving, obtain terminal master key TMK, and terminal master key TMK is kept in code keypad.
So, by TK, encrypt terminal master key TMK, make TMK can carry out remote transmission, facilitate the secure download of TMK.
Above-mentionedly by POS terminal, gather and to be sent to bank's end after transmission security key TK TMK is encrypted, then by the method that POS terminal remote is downloaded the TMK after TK encrypts, can guarantee the transmission security of TMK.But TK uploads by POS terminal is scattered, every POS terminal all must communicate to connect with KMS system made, has therefore greatly increased work load and the difficulty of KMS system, meanwhile, is also difficult to TK to upload and manage and security management and control.
Below just the present invention is overcome to the problems referred to above technical scheme be elaborated.
As shown in Figure 1, for the structured flowchart of a kind of terminal master key TMK of present embodiment secure download system, this terminal master key TMK secure download system comprises: the first hardware encipher machine 40, the second hardware encipher machine 50, POS terminal 10, with the MTMS system 20 of POS terminal 10 communication connections and with the KMS system 30 of MTMS system 20 communication connections; Described POS terminal 10 comprises TK generation module 101, the upper transmission module 102 of a TK, master key download request module 103, two-way authentication A module 105 and TMK receiver module 104,
Described MTMS system 20 comprises the upper transmission module 203 of public and private key generation module 201, arranging key A module 202 and the 2nd TK,
Described KMS system 30 comprises arranging key B module 301, TK receiver module 302, request respond module 303, two-way authentication B module 304 and TMK sending module 305;
Described the first hardware encipher machine 40 is for calling for MTMS system 20, and described the second hardware encipher machine 50 is for calling for KMS system 30;
Public and private key generation module 201 produces PKI Pu and private key Pr for calling the first hardware encipher machine 40, and PKI Pu is sent to POS terminal 10 and is stored in code keypad;
Arranging key A module 202 and arranging key B module 301 are for calling the first hardware encipher machine 40 and the second hardware encipher machine 50, in hardware encipher machine separately, MTMS system 20 authority components and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine 40 and the second hardware encipher machine 50 in the lump;
TK generation module 101 produces symmetrical transmission security key TK for calling code keypad, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK;
The upper transmission module 102 of the one TK generates the first transmission security key ciphertext Ctk_Pu for calling the code keypad Pu encrypted transmission cipher key T K that uses public-key, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system 20;
The upper transmission module 203 of the 2nd TK for by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database;
The upper transmission module 203 of the 2nd TK is used private key Pr to decipher the first transmission security key ciphertext Ctk_Pu acquisition transmission security key TK for calling the first hardware encipher machine, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system 30;
TK receiver module 302 for terminal serial number SN that MTMS system 20 is sent associated with the second transmission security key ciphertext Ctk_pk be stored in KMS database;
Master key download request module 103 is for being sent to KMS system 30 by terminal serial number SN and the application of download master key;
Request respond module 303, for receiving the terminal serial number SN of POS terminal 10 transmissions when KMS system 30 and downloading after master key application, is inquired about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN;
Request respond module 303 is used MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring for calling the second hardware encipher machine 50, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine 50;
Two-way authentication A module 105 and two-way authentication B module 304 are for obtaining after transmission security key TK when KMS system 30, and the second hardware encipher machine 50 that calls uses authenticate key AUK and POS terminal to carry out two-way authentication;
TMK sending module 305 is for when authentication is passed through, and the second hardware encipher machine 50 that calls uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal 10;
TMK receiver module 104 is used traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in to code keypad for calling code keypad.
Wherein, described MTMS system 20 also comprises digital digest module.
Described digital digest module, for the terminal serial number SN receiving and the first transmission security key ciphertext Ctk_Pu are packed and generate the first digital digest, is separated described terminal serial number SN and the first transmission security key ciphertext Ctk_Pu to be stored in MTMS system database with described the first digital digest;
And generate the second digital digest for extracting terminal serial number SN and the first transmission security key ciphertext Ctk_Pu of described packing, judge whether described the second digital digest equates with the first digital digest, described digital digest module is also for when the first digital digest equates with the second digital digest, and the first hardware encipher machine that calls uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK.
By described digital digest module, can judge at TK described in MTMS system 20 whether be modified, thereby the TK that the TK that assurance is uploaded from MTMS system 20 uploads with POS terminal 10 is consistent.
Refer to Fig. 2 and Fig. 3, Fig. 2 is the structured flowchart of described two-way authentication A module, and Fig. 3 is the structured flowchart of described two-way authentication B module.Wherein, described two-way authentication A module 105 comprises the first random number generation unit 1051, the first data transmit-receive unit 1052, the first encryption/decryption element 1053 and the first judging unit 1054, and described two-way authentication B module 304 comprises the second random number generation unit 3041, the second data transmit-receive unit 3042, the second encryption/decryption element 3043 and the second judging unit 3044.
The first random number generation unit 1051 is for generation of the first random number R nd1; The first data transmit-receive unit is for being sent to KMS system by the first random number R nd1 producing; The second data transmit-receive unit 3042 is for receiving the first random number R nd1; The second random number generation unit 3041, for when receiving the first random number R nd1, produces random number the 2nd Rnd2; The second encryption/decryption element 3043 is for when receiving the first random number R nd1, and the second hardware encipher machine 50 that calls uses certified transmission key A UK to encrypt the first random number R nd1 and obtains the first random number ciphertext Crnd1; The second data transmit-receive unit is for sending to POS terminal by the first random number ciphertext Crnd1 and the second random number R nd2;
The first encryption/decryption element 1053 is for when receiving the first random number ciphertext Crnd1 and the second random number R nd2, and the first random number ciphertext Crnd1 that uses certified transmission key A UK deciphering to receive obtains the 3rd random number R nd1 '; Whether the first judging unit 1054 is consistent with the first random number R nd1 for judging the 3rd random number R nd1 ';
The first encryption/decryption element 1053 is for judging that when described the first judging unit the 3rd random number R nd1 ' is with the first random number R nd1 when consistent, and use certified transmission key A UK encrypts the second random number R nd2 and generates the second random number ciphertext Crnd2; The first data transmit-receive unit 1052 is for sending to KMS system 30 by the second random number ciphertext Crnd2;
The second encryption/decryption element 3043 is for when receiving the second random number ciphertext Crnd2, call the second random number ciphertext Crnd2 acquisition the 4th random number R nd2 ' that hardware encipher machine uses certified transmission key A UK deciphering to receive, whether the second judging unit 3043 is consistent with the second random number R nd2 for judging the 4th random number R nd2 ', and when judging that the 4th random number R nd2 ' is with the second random number R nd2 when consistent, the two-way authentication between confirmation KMS system 30 and POS terminal 10 is passed through.
Referring to Fig. 4, is the general flow chart of a kind of terminal master key TMK of present embodiment method for safely downloading, and this terminal master key TMK method for safely downloading comprises:
S1, TK upload flow process;
S2, TMK download flow process;
Referring to Fig. 5, is the particular flow sheet of step S1, and this step specifically comprises:
S11, MTMS system call the first hardware encipher machine produce PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad;
S12, MTMS system call the first hardware encipher machine, KMS system call the second hardware encipher machine, in hardware encipher machine separately, MTMS System Privileges component and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine and the second hardware encipher machine in the lump;
S13, POS terminal are called code keypad and are produced symmetrical transmission security key TK, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK;
S14, POS terminal are called the code keypad Pu encrypted transmission cipher key T K that uses public-key and are generated the first transmission security key ciphertext Ctk_Pu, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system;
S15, MTMS system by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database;
S16, MTMS system call the first hardware encipher machine use private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtain transmission security key TK, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system;
The terminal serial number SN that S17, KMS system send MTMS system is stored in KMS database associatedly with the second transmission security key ciphertext Ctk_pk;
Referring to Fig. 6, is the particular flow sheet of step S2, and this step specifically comprises:
S21, POS terminal are sent to KMS system by terminal serial number SN and the application of download master key;
S22, KMS system receive the terminal serial number SN of POS terminal transmission and download after master key application, inquire about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN;
S23, KMS system call the second hardware encipher machine use MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine;
After S24, KMS system acquisition transmission security key TK, calling the second hardware encipher machine uses authenticate key AUK and POS terminal to carry out two-way authentication;
If S25 authentication is passed through, KMS system call the second hardware encipher machine uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal;
S26, POS terminal are called code keypad and are used traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in code keypad.
Wherein, described " MTMS system call the first hardware encipher machine produces PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad " specifically comprises:
MTMS system call the first hardware encipher machine produces PKI Pu and private key Pr, and PKI Pu is issued to CA center;
MTMS system CongCA center obtains the work certificate HsmWCRT generating and is kept in database, and work certificate HsmWCRT is sent to POS terminal, and work certificate HsmWCRT is used root certificate HsmRCRT to generate PKI Pu signature;
POS terminal is used the legitimacy of the root certificate HsmRCRT checking work certificate HsmWCRT that burns sheet prepackage, and POS terminal is extracted PKI Pu and is stored in code keypad from work certificate HsmWCRT after being verified.
Wherein, described " MTMS system by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database " specifically comprise:
MTMS system is packed the terminal serial number SN receiving and the first transmission security key ciphertext Ctk_Pu generate the first digital digest, and described terminal serial number SN and the first transmission security key ciphertext Ctk_Pu are separated and are stored in MTMS system database with described the first digital digest;
Described " MTMS system call the first hardware encipher machine uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK " specifically comprises:
Terminal serial number SN and the first transmission security key ciphertext Ctk_Pu that MTMS system is extracted described packing generate the second digital digest;
Judge whether described the second digital digest equates with the first digital digest, if equated, the first hardware encipher machine that calls uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK.
Wherein, described " after KMS system acquisition transmission security key TK, calling the second hardware encipher machine uses authenticate key AUK and POS terminal to carry out two-way authentication " specifically comprises:
POS terminal produces the first random number R nd1 and the first random number R nd1 is sent to KMS system;
KMS system produces random number the 2nd Rnd2 after receiving the first random number R nd1, the second hardware encipher machine that calls uses authenticate key AUK to encrypt the first random number R nd1 and obtains the first random number ciphertext Crnd1, and the first random number ciphertext Crnd1 and the second random number R nd2 are sent to POS terminal;
The first random number ciphertext Crnd1 that POS terminal is used authenticate key AUK deciphering to receive obtains the 3rd random number R nd1 ', judges that whether the 3rd random number R nd1 ' is consistent with the first random number R nd1:
If the 3rd random number R nd1 ' is consistent with the first random number R nd1, POS terminal is used authenticate key AUK to encrypt the second random number R nd2 and is generated the second random number ciphertext Crnd2, and the second random number ciphertext Crnd2 is sent to KMS system;
The second random number ciphertext Crnd2 that KMS system call the second hardware encipher machine uses authenticate key AUK deciphering to receive obtains the 4th random number R nd2 ', judges that whether the 4th random number R nd2 ' is consistent with the second random number R nd2;
If the 4th random number R nd2 ' is consistent with the second random number R nd2, KMS system and POS terminal authentication pass through.
In the present invention, transmission security key TK calculates the original uncommon Kazakhstan value of TK while producing, and when each storage, transmission or use TK, the uncommon Kazakhstan value of first verification TK just can be used TK after upchecking.Uncommon Kazakhstan value by verification TK can prevent that memory device from causing the error in data of storage extremely, determines that whether key is correct.
Beneficial effect of the present invention is: the essential technological deficiency of concentrating download terminal master key that is different from prior art, the present invention is by POS terminal upload transfers cipher key T K, after encrypting terminal master key TMK by TK, download to POS terminal, realized POS terminal remote download terminal master key TMK, after having avoided POS terminal by concentrated download master key, cloth is put into trade company again, logistics cost and concentrated download-maintenance cost have been reduced, and before transmitting master key between POS terminal and KMS, also carried out two-way authentication, improved the download safety of master key.Further, master key TMK of the present invention is generated by KMS system, therefore facilitates KMS system to the follow-up maintenance of master key TMK and management.Further, the present invention unifies to gather and upload to TK by MTMS system, collection and the management of TK have been facilitated, simultaneously, between POS terminal and KMS system, by MTMS system, carry out TK and upload, avoided every POS terminal and the direct communication of KMS system, alleviated work load and the difficulty of KMS system, also the authenticity of the TK that facilitates KMS system identification to communicate with the identity of connecting object and upload, has improved the accurate transmission of TK and the operating efficiency of KMS system simultaneously.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (7)

1. a terminal master key TMK method for safely downloading, is characterized in that, comprises step:
S1, TK upload flow process;
S2, TMK download flow process;
Wherein, step S1 specifically comprises:
S11, MTMS system call the first hardware encipher machine produce PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad;
S12, MTMS system call the first hardware encipher machine, KMS system call the second hardware encipher machine, in hardware encipher machine separately, MTMS System Privileges component and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine and the second hardware encipher machine in the lump;
S13, POS terminal are called code keypad and are produced symmetrical transmission security key TK, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK;
S14, POS terminal are called the code keypad Pu encrypted transmission cipher key T K that uses public-key and are generated the first transmission security key ciphertext Ctk_Pu, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system;
S15, MTMS system by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database;
S16, MTMS system call the first hardware encipher machine use private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtain transmission security key TK, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system;
The terminal serial number SN that S17, KMS system send MTMS system is stored in KMS database associatedly with the second transmission security key ciphertext Ctk_pk;
Step S2 specifically comprises:
S21, POS terminal are sent to KMS system by terminal serial number SN and the application of download master key;
S22, KMS system receive the terminal serial number SN of POS terminal transmission and download after master key application, inquire about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN;
S23, KMS system call the second hardware encipher machine use MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine;
After S24, KMS system acquisition transmission security key TK, calling the second hardware encipher machine uses authenticate key AUK and POS terminal to carry out two-way authentication;
If S25 authentication is passed through, KMS system call the second hardware encipher machine uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal;
S26, POS terminal are called code keypad and are used traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in code keypad.
2. a kind of terminal master key TMK method for safely downloading according to claim 1, it is characterized in that, described " MTMS system call the first hardware encipher machine produces PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad " specifically comprises:
MTMS system call the first hardware encipher machine produces PKI Pu and private key Pr, and PKI Pu is issued to CA center;
MTMS system CongCA center obtains the work certificate HsmWCRT generating and is kept in database, and work certificate HsmWCRT is sent to POS terminal, and work certificate HsmWCRT is used root certificate HsmRCRT to generate PKI Pu signature;
POS terminal is used the legitimacy of the root certificate HsmRCRT checking work certificate HsmWCRT that burns sheet prepackage, and POS terminal is extracted PKI Pu and is stored in code keypad from work certificate HsmWCRT after being verified.
3. a kind of key management method according to claim 1, is characterized in that, described " MTMS system by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database " specifically comprise:
MTMS system is packed the terminal serial number SN receiving and the first transmission security key ciphertext Ctk_Pu generate the first digital digest, and described terminal serial number SN and the first transmission security key ciphertext Ctk_Pu are separated and are stored in MTMS system database with described the first digital digest;
Described " MTMS system call the first hardware encipher machine uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK " specifically comprises:
Terminal serial number SN and the first transmission security key ciphertext Ctk_Pu that MTMS system is extracted described packing generate the second digital digest;
Judge whether described the second digital digest equates with the first digital digest, if equated, the first hardware encipher machine that calls uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK.
4. a kind of key management method according to claim 1, is characterized in that, described " after KMS system acquisition transmission security key TK, calling the second hardware encipher machine uses authenticate key AUK and POS terminal to carry out two-way authentication " specifically comprises:
POS terminal produces the first random number R nd1 and the first random number R nd1 is sent to KMS system;
KMS system produces random number the 2nd Rnd2 after receiving the first random number R nd1, the second hardware encipher machine that calls uses authenticate key AUK to encrypt the first random number R nd1 and obtains the first random number ciphertext Crnd1, and the first random number ciphertext Crnd1 and the second random number R nd2 are sent to POS terminal;
The first random number ciphertext Crnd1 that POS terminal is used authenticate key AUK deciphering to receive obtains the 3rd random number R nd1 ', judges that whether the 3rd random number R nd1 ' is consistent with the first random number R nd1:
If the 3rd random number R nd1 ' is consistent with the first random number R nd1, POS terminal is used authenticate key AUK to encrypt the second random number R nd2 and is generated the second random number ciphertext Crnd2, and the second random number ciphertext Crnd2 is sent to KMS system;
The second random number ciphertext Crnd2 that KMS system call the second hardware encipher machine uses authenticate key AUK deciphering to receive obtains the 4th random number R nd2 ', judges that whether the 4th random number R nd2 ' is consistent with the second random number R nd2;
If the 4th random number R nd2 ' is consistent with the second random number R nd2, KMS system and POS terminal authentication pass through.
5. a terminal master key TMK secure download system, is characterized in that, comprising: the first hardware encipher machine, the second hardware encipher machine, POS terminal, the MTMS system being connected with POS terminal communication and the KMS system being connected with MTMS system communication; Described POS terminal comprises TK generation module, the upper transmission module of a TK, master key download request module, two-way authentication A module and TMK receiver module,
Described MTMS system comprises the upper transmission module of public and private key generation module, arranging key A module and the 2nd TK,
Described KMS system comprises arranging key B module, TK receiver module, request respond module, two-way authentication B module and TMK sending module;
Described the first hardware encipher machine is for supplying MTMS system call, and described the second hardware encipher machine is for supplying KMS system call;
Public and private key generation module is used for calling the first hardware encipher machine and produces PKI Pu and private key Pr, and PKI Pu is sent to POS terminal and is stored in code keypad;
Arranging key A module and arranging key B module are used for calling the first hardware encipher machine and the second hardware encipher machine, in hardware encipher machine separately, MTMS System Privileges component and KMS authority component are synthesized to Protective Key PK and MAC key MAK respectively, and described Protective Key PK and MAC key MAK are stored in the first hardware encipher machine and the second hardware encipher machine in the lump;
TK generation module is used for calling code keypad and produces symmetrical transmission security key TK, and described transmission security key TK comprises traffic encryption key TEK and certified transmission key A UK;
The upper transmission module of the one TK is used for calling the code keypad Pu encrypted transmission cipher key T K that uses public-key and generates the first transmission security key ciphertext Ctk_Pu, and transmission the first key ciphertext Ctk_Pu and terminal serial number SN are sent to MTMS system;
The upper transmission module of the 2nd TK for by the terminal serial number SN receiving associated with the first transmission security key ciphertext Ctk_Pu be stored in MTMS system database;
The upper transmission module of the 2nd TK is used for calling the first hardware encipher machine and uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu acquisition transmission security key TK, then use Protective Key PK encrypted transmission cipher key T K and use MAC key MAK to calculate MAC value, generate the second transmission security key ciphertext Ctk_pk, then terminal serial number SN and the second transmission security key ciphertext Ctk_pk are sent to KMS system;
The terminal serial number SN that TK receiver module is used for MTMS system to send is stored in KMS database associatedly with the second transmission security key ciphertext Ctk_pk;
Master key download request module is for being sent to KMS system by terminal serial number SN and the application of download master key;
Request respond module, for receiving the terminal serial number SN of POS terminal transmission when KMS system and downloading after master key application, is inquired about the second transmission security key ciphertext Ctk_pk corresponding with terminal serial number SN;
Request respond module is used MAC key MAK to the second transmission security key ciphertext Ctk_pk verification MAC legitimacy inquiring for calling the second hardware encipher machine, if verification is passed through, use Protective Key PK to decipher the second transmission security key ciphertext Ctk_pk and obtain transmission security key TK and be stored in described the second hardware encipher machine;
Two-way authentication A module and two-way authentication B module are for obtaining after transmission security key TK when KMS system, and the second hardware encipher machine that calls uses authenticate key AUK and POS terminal to carry out two-way authentication;
TMK sending module is for when authentication is passed through, and the second hardware encipher machine that calls uses traffic encryption key TEK to encrypt terminal master key TMK and generates master key ciphertext Ctmk and master key ciphertext Ctmk is sent to POS terminal;
TMK receiver module is used for calling code keypad and uses traffic encryption key TEK deciphering master key ciphertext Ctmk obtain terminal master key TMK and terminal master key TMK is stored in to code keypad.
6. terminal master key TMK secure download system according to claim 5, is characterized in that, described MTMS system also comprises digital digest module;
Described digital digest module, for the terminal serial number SN receiving and the first transmission security key ciphertext Ctk_Pu are packed and generate the first digital digest, is separated described terminal serial number SN and the first transmission security key ciphertext Ctk_Pu to be stored in MTMS system database with described the first digital digest;
And generate the second digital digest for extracting terminal serial number SN and the first transmission security key ciphertext Ctk_Pu of described packing, judge whether described the second digital digest equates with the first digital digest, described digital digest module is also for when the first digital digest equates with the second digital digest, and the first hardware encipher machine that calls uses private key Pr to decipher the first transmission security key ciphertext Ctk_Pu and obtains transmission security key TK.
7. terminal master key TMK secure download system according to claim 5, is characterized in that, described two-way authentication A module comprises the first random number generation unit, the first data transmit-receive unit, the first encryption/decryption element and the first judging unit,
Described two-way authentication B module comprises the second random number generation unit, the second data transmit-receive unit, the second encryption/decryption element and the second judging unit;
The first random number generation unit is for generation of the first random number R nd1; The first data transmit-receive unit is for being sent to KMS system by the first random number R nd1 producing; The second data transmit-receive unit is used for receiving the first random number R nd1; The second random number generation unit, for when receiving the first random number R nd1, produces random number the 2nd Rnd2; The second encryption/decryption element is for when receiving the first random number R nd1, and the second hardware encipher machine that calls uses certified transmission key A UK to encrypt the first random number R nd1 and obtains the first random number ciphertext Crnd1; The second data transmit-receive unit is for sending to POS terminal by the first random number ciphertext Crnd1 and the second random number R nd2;
The first encryption/decryption element is for when receiving the first random number ciphertext Crnd1 and the second random number R nd2, and the first random number ciphertext Crnd1 that uses certified transmission key A UK deciphering to receive obtains the 3rd random number R nd1 '; The first judging unit is used for judging that whether the 3rd random number R nd1 ' is consistent with the first random number R nd1;
The first encryption/decryption element is for judging that when described the first judging unit the 3rd random number R nd1 ' is with the first random number R nd1 when consistent, and use certified transmission key A UK encrypts the second random number R nd2 and generates the second random number ciphertext Crnd2; The first data transmit-receive unit is for sending to KMS system by the second random number ciphertext Crnd2;
The second encryption/decryption element is for when receiving the second random number ciphertext Crnd2, call the second random number ciphertext Crnd2 acquisition the 4th random number R nd2 ' that hardware encipher machine uses certified transmission key A UK deciphering to receive, the second judging unit is used for judging that whether the 4th random number R nd2 ' is consistent with the second random number R nd2, and when judging that the 4th random number R nd2 ' is with the second random number R nd2 when consistent, the two-way authentication between confirmation KMS system and POS terminal is passed through.
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CN2013100846716 2013-03-15
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CN2013100846716A CN103220270A (en) 2013-03-15 2013-03-15 Downloading method, management method, downloading management method, downloading management device and downloading management system for secret key
CN201310084397.2 2013-03-15
CN2013100846735 2013-03-15
CN201310084671.6 2013-03-15
CN201310084653.8 2013-03-15
CN2013100846538A CN103237005A (en) 2013-03-15 2013-03-15 Method and system for key management
CN2013100846735A CN103220271A (en) 2013-03-15 2013-03-15 Downloading method, management method, downloading management method, downloading management device and downloading management system for secret key
CN2013100843972A CN103237004A (en) 2013-03-15 2013-03-15 Key download method, key management method, method, device and system for download management
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CN201310740231.1A Active CN103714635B (en) 2013-03-15 2013-12-27 A kind of POS terminal and terminal master key downloading mode collocation method thereof
CN201310741948.8A Active CN103714639B (en) 2013-03-15 2013-12-27 A kind of method and system that realize the operation of POS terminal security
CN201310740642.0A Active CN103731259B (en) 2013-03-15 2013-12-27 A kind of terminal master key TMK safety downloading method and systems
CN201310740360.0A Active CN103714636B (en) 2013-03-15 2013-12-27 A kind of method of batch capture and upload transfers cipher key T K data and operating terminal
CN201310740158.8A Active CN103716320B (en) 2013-03-15 2013-12-27 A kind of terminal master key TMK safety downloading method and systems
CN201310740537.7A Active CN103746800B (en) 2013-03-15 2013-12-27 TMK (terminal master key) safe downloading method and system
CN201310740540.9A Active CN103716154B (en) 2013-03-15 2013-12-27 A kind of terminal master key TMK safety downloading method and systems
CN201310740308.5A Active CN103729941B (en) 2013-03-15 2013-12-27 A kind of main cipher key T MK method for safely downloading of terminal and system
CN201310740430.2A Active CN103729943B (en) 2013-03-15 2013-12-27 A kind of method and system transmission security key being imported KMS system
CN201310742991.6A Active CN103714641B (en) 2013-03-15 2013-12-27 A kind of terminal master key TMK method for safely downloading and system
CN201310740285.8A Active CN103729940B (en) 2013-03-15 2013-12-27 A kind of main cipher key T MK method for safely downloading of terminal and system
CN201310740226.0A Active CN103714634B (en) 2013-03-15 2013-12-27 A kind of method of main key of secure download terminal and system
CN201310740574.8A Active CN103729945B (en) 2013-03-15 2013-12-27 A kind of method and system of secure download terminal master key
CN201310742886.2A Active CN103716321B (en) 2013-03-15 2013-12-27 A kind of terminal master key TMK safety downloading method and systems
CN201310740264.6A Active CN103701812B (en) 2013-03-15 2013-12-27 TMK (Terminal Master Key) secure downloading method and system
CN201310740567.8A Active CN103729944B (en) 2013-03-15 2013-12-27 A kind of method and system of secure download terminal master key
CN201310742681.4A Active CN103714640B (en) 2013-03-15 2013-12-27 A kind of sending method of transmission security key and system
CN201310740410.5A Active CN103729942B (en) 2013-03-15 2013-12-27 Transmission security key is transferred to the method and system of key server from terminal server
CN201310740100.3A Active CN103714633B (en) 2013-03-15 2013-12-27 A kind of method of safe generating transmission key and POS terminal
CN201310742686.7A Active CN103745351B (en) 2013-03-15 2013-12-27 A kind of acquisition method and system for transmitting cipher key T K
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