CN113055382A - Zero-trust-based host password control method - Google Patents

Zero-trust-based host password control method Download PDF

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Publication number
CN113055382A
CN113055382A CN202110269405.5A CN202110269405A CN113055382A CN 113055382 A CN113055382 A CN 113055382A CN 202110269405 A CN202110269405 A CN 202110269405A CN 113055382 A CN113055382 A CN 113055382A
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password
host
card
management
client program
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CN113055382B (en
Inventor
王文庆
邓楠轶
毕玉冰
陈燕
宋润
高原英
董夏昕
介银娟
崔逸群
刘超飞
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Xian Thermal Power Research Institute Co Ltd
Huaneng Power International Inc
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Xian Thermal Power Research Institute Co Ltd
Huaneng Power International Inc
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    • 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
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
    • 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
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
    • 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
    • H04L9/3226—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 using a predetermined code, e.g. password, passphrase or PIN

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Storage Device Security (AREA)

Abstract

The invention discloses a zero trust-based host password control method, which comprises a method for controlling a host, a method for forcibly resetting the host password after the host password exceeds the valid period, and a method for processing the abnormal login password; the password generated by the password construction strategy can meet the requirement of the host password strength, the weak password risk of the host is obviously reduced, the management and the audit of the host password are realized through unified management and control, the execution of the regular forced replacement strategy of the host password is ensured, the host password is stored on the entity identity identification card, the difficulty of password cracking and identity counterfeiting is obviously improved, meanwhile, a user does not need to record a complex host password, the password-free login can be completed by using the identity identification card, and the full life cycle management of the host password is realized.

Description

Zero-trust-based host password control method
Technical Field
The application relates to network security host security management, in particular to a zero trust-based host password control method.
Background
Weak passwords are a typical network and information security problem and are widely present in a variety of situations. Once the password of the host computer involved in the network is cracked by a network attacker, identity authentication, illegal access, permission stealing and the like can occur, so that important data is leaked or lost. Even if an attacker only acquires the password of the non-core system host, the attacker also has the conditions of performing transverse jump and further performing privilege escalation in the network, and then threats the security of the core system. According to the barrel principle of network security protection, the overall security level of the system depends on the short plate of the system security protection, and the host password security cannot be ignored.
In actual operation and maintenance management, the following problems generally exist in the host password:
1. network security related regulations require that the user must set a sufficiently strong password: the minimum digit number of the password is specified, such as 8 digits or more than 8 digits is required; the password at least needs to contain more than 3 characters, such as: upper and lower case letters, numbers, special characters, etc. In order to facilitate use and memorize, users often set passwords with low or insufficient strength.
2. Network security-related regulations require that a user must regularly change passwords, but users often turn off the forced replacement policy of host passwords for convenience of use.
3. The password of the host computer is usually set by a machine user, the workload of host computer security check and audit is large when the network security is reinforced, and automatic audit and unified management are difficult to realize.
The zero trust inherits the safety principle of 'never trusting and always verifying' and processes the data access and authentication verification between the access subject and the access object. And the trust evaluation engine continuously performs trust evaluation, judges whether the access control strategy needs to be changed or not, and if so, informs an access agent in time to quickly implement protection on the data resources. Compared with a boundary-based security model, the zero-trust network can better adapt to the requirement of future network security protection and protect important data.
Aiming at the outstanding problems of the host password, a new technical means is needed to standardize the management and control mode of the host password, and the security of the host password is enhanced.
Disclosure of Invention
Aiming at the problems existing in the use of the current host password, the invention designs a zero-trust-based host password control method, the host password generated by the system can meet the strength requirement of the network security relevant specification on the password, uniform and regular replacement can be realized, and password auditing and centralized management based on zero trust can be synchronously completed in the password distribution and verification process. By storing the host password on the identity card matched with the host, the user does not need to memorize the complex host password and only needs to read the identity card through the card reader to complete the password-free login. The password is stored on a physical medium of the identity identification card, so that the difficulty of copying and forging through network access is increased, the usability is ensured, and the security of the host password is effectively improved.
Meanwhile, the system has simple structure, and is easy to integrate with the existing Authentication systems of 4A (Authentication, Authorization, Account number, Audit, IAM (identity and Access management), LDAP (lightweight Directory Access protocol) and the like of enterprises.
In order to achieve the purpose, the invention adopts the following technical scheme:
a zero trust based host password control method, a host password control system for realizing the method comprises a password management server SpAnd a managed host MiI from 1 to N, password management server SpDeploying password server side SSmA card reading device is equipped; host MiDeploying password setting client program SCiAnd identity identification card C matched with hostiAnd a card reading device.
Wherein, the password management server SpThe system is responsible for realizing password generation, password verification and password auditing and is a main body for executing the zero-trust management and control of the host password; host password PiIs saved to an identification card CmUpper, main machine MiOn the password setting client program SCiTaking over the host login authentication function, password setting client program SCiIdentification of the card C from the identity by means of a card readeriRead the host password PiAutomatically log in after verification, and an identification card C is used for a useriCompletes the host MiAnd (4) secret login is avoided.
The management and control method of the zero-trust-based host password management and control system comprises the following steps:
step one, a host M is connectediThe method comprises the following specific processing steps:
step 1, the host M brought into management and controliInstallation password setting client program SCiPassword setting client program SCiTo password server side SSmSending host identity Uid；
Step 2, password management server SpPassword server side SSmComplete host MiAfter the identity of (2) is confirmed, a host password P is generatediAnd writing into an identification card Ci(ii) a The process is not transmitted over a network;
to ensure the strength of generating the host password, the password server side SSmRandom two-password construction strategy for generating host password Pi；
1) Host password PiConstructing a strategy 1: the total length of the host password is 16 bits, and the host password comprises three of capital letters, lowercase letters, numbers and special characters;
2) host password PiAnd constructing a strategy 2: the total length of the host password is 16 bits, the host password at least comprises two Chinese phonetics, and alphabetic characters are separated by non-alphabetic characters; because the basic dictionary library of the conventional password blasting tool is mostly constructed based on English words, in order to improve the strength of the constructed password, Chinese pinyin is used to replace the English words.
Step 3, host MiOn the password setting client program SCiReading identification card CiAfter the carried password information, modifying the password of the host computer; after the modification is successful, the host M is connectediAnd (3) related information: host computer identification UidNetwork card MAC, IP address and the like to password management server Sp；
Step 4, password management server SpPassword server side SSmReceiving host MiAfter setting the password of (2), setting the host password PiCarrying out encryption storage;
the encryption process is as follows: generation of salt P using cryptographically secure random numberssaltPassword P of host computer by using SHA512 encryption algorithmiSalt number P ofsaltEncrypting to generate an encrypted password Phash；
Namely: phash＝SHA512(SHA512(Pi)+Psalt)
Password server side SSmHost MiFingerprint information of { UidMAC, IP, password encryption information Phash、PsaltAnd password authorization completion time AtSaving the password in a password database;
step 5, the user needs to log in the host MiAt the same time, the identification card C is read by a card readeriPassword setting client program SCiFrom the identity card CiAnd obtaining the host password, and automatically completing login after verification.
Step two, the host password PiExceeding the validity period T of the passwordmaxAnd then, the host password needs to be updated, and the specific processing steps are as follows:
step 1, password setting client program SCiAutomatic judgment of host password P according to current password authorization timeiWhether it is due; if it is expired, the SS sends the password server endmSending an update password application and locking the host Mi；
Step 2, password server side SSmAfter receiving the password resetting application of the password setting client program SCi, if the identity verification is passed, the host M is modifiediThe state of (1);
step 3, password server side SSmGenerating a new host password Pi' and write in identification card CiPerforming the following steps;
step 4, host MiCard reader reading identification card CiPassword setting client program SCiFrom the identity card CiReading a new host password to complete host password updating;
step three, the host MiThe method comprises the following specific processing steps of:
step 1, if login failure occurs, the host computer MiPassword setting client program SCiLogging in related information: host computer identification UidAnd a login time LtTo the password server side SSmRecording;
step 2, password server side SSmRecording abnormal information, sending abnormal login prompt information to a system administrator, and processing the abnormality by the system administrator;
step 3, if the continuous login fails, accumulating the times EiOver EmaxAnd then locking the host Mi.
Generally, compared with the existing host password management method, the method provided by the invention has the following advantages:
1) the password construction strategy employed ensures that the generated password P isiCan meet the strength requirement of the relevant password and obviously reduceThe host is at risk of a weak password.
2) The unified management and audit of the host password are realized, and the implementation of the regular forced replacement strategy of the host password is ensured.
3) The host password is stored on the identity identification card of the entity, so that the difficulty of password cracking and identity counterfeiting is obviously improved, and meanwhile, the user can complete password-free login by using the identity identification card without recording a complex host password. .
4) The full life cycle of the host password is managed.
Drawings
Fig. 1 is a block diagram of a host password administration system according to the present invention.
Fig. 2 is a host inclusion control flow of the host password control system according to the present invention.
Fig. 3 is a flow of periodically updating the host password of the host password administration system according to the present invention.
Fig. 4 is an abnormal login processing flow of the host password management and control system provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The invention relates to a zero trust-based host password control method.A host password control system for realizing the method comprises a password management server SpAnd a managed host MiI from 1 to N, password management server SpDeploying password server side SSmA card reading device is equipped; host MiDeploying password setting client program SCiAnd identity identification card C matched with hostiAnd a card reading device.
Wherein, the password management server SpThe system is responsible for realizing password generation, password verification and password auditing and is a main body for executing the zero-trust management and control of the host password; host password PiIs saved to an identification card CmUpper, main machine MiPassword device onClient program SCiTaking over the host login authentication function, password setting client program SCiIdentification of the card C from the identity by means of a card readeriRead the host password PiAutomatically log in after verification, and an identification card C is used for a useriCompletes the host MiAnd (4) secret login is avoided.
As shown in FIG. 1, the host management and control system adopts a C/S structure. Password management server SpOn-deployment server-side software SSmAnd a card reader is attached. Managed host MiOn-install client software SCiCard reader and identification card CiWherein i ranges from 1 to N.
The invention discloses a management and control method of a zero-trust-based host password management and control system, which comprises the following steps:
step one, a host M is connectediInclusion control, as shown in fig. 2, the specific processing steps are as follows:
s21, host M incorporated in management and controliInstallation password setting client program SCiPassword setting client program SCiTo password server side SSmSending host identity Uid；
S22 password management server SpPassword server side SSmComplete host MiAfter the identity of (2) is confirmed, a host password P is generatediAnd writing into an identification card Ci(ii) a The process is not transmitted over a network;
to ensure the strength of generating the host password, the password server side SSmRandom two-password construction strategy for generating host password Pi；
1) Host password PiConstructing a strategy 1: the total length of the host password is 16 bits, and the host password comprises three of capital letters, lowercase letters, numbers and special characters;
2) host password PiAnd constructing a strategy 2: the total length of the host password is 16 bits, the host password at least comprises two Chinese phonetics, and alphabetic characters are separated by non-alphabetic characters; the basic dictionary library of the conventional password blasting tool is mostly based on EnglishAnd (4) constructing the text words, and replacing English words with Chinese pinyin in order to improve the strength of the constructed password.
S23, host MiOn the password setting client program SCiReading identification card CiAfter the carried password information, the password of the host computer is modifiedi(ii) a After the modification is successful, the host M is connectediAnd (3) related information: host computer identification UidNetwork card MAC, IP address and the like to password management server Sp；
S24 password management server SpPassword server side SSmReceiving host MiAfter setting the password of (2), setting the host password PiCarrying out encryption storage;
the encryption process is as follows: generation of salt P using cryptographically secure random numberssaltPassword P of host computer by using SHA512 encryption algorithmiSalt number P ofsaltEncrypting to generate an encrypted password Phash；
Namely: phash＝SHA512(SHA512(Pi)+Psalt)
Password server side SSmHost MiFingerprint information of { UidMAC, IP, password encryption information Phash、PsaltAnd password authorization completion time AtSaving the password in a password database;
s25, the user needs to log in the host MiAt the same time, the identification card C is read by a card readeriPassword setting client program SCiFrom the identity card CiAnd obtaining the host password, and automatically completing login after verification.
Step two, the host password PiExceeding the validity period T of the passwordmaxThen, the host password needs to be updated, as shown in fig. 3, the flow is as follows:
s31 password setting client program SCiAutomatically judging whether the password Pi is expired or not according to the time of current password authorization; if it is expired, the SS sends the password server endmAnd sending an update password application and locking the host Mi.
S32 password server SSmAfter receiving the application for resetting the SCi password, if the authentication passes, modifying the state of the host Mi;
s33 password server SSmGenerating a new host password Pi' and write in identification card CiPerforming the following steps;
s34, host MiCard reader reading identification card CiPassword setting client program SCiFrom the identity card CiAnd reading the new host password to complete the host password updating.
Step three, processing when the host computer Mi login system has password abnormality, as shown in FIG. 4, the flow is as follows:
s41, if the login fails, the host MiPassword setting client program SCiLogging in related information: host computer identification UidSending the login time Lt to the password server side SSmRecording;
s42 password server SSmRecording abnormal information, sending abnormal login prompt information to a system administrator, and processing the abnormality by the system administrator;
s43, if the continuous logging fails, accumulating times EiOver EmaxAnd then locking the host Mi.

Claims (1)

1. A host password control method based on zero trust is characterized in that: the host password management and control system for realizing the method comprises a password management server SpAnd a managed host MiI from 1 to N, password management server SpDeploying password server side SSmA card reading device is equipped; host MiDeploying password setting client program SCiAnd identity identification card C matched with hostiAnd a card reading device.
Wherein, the password management server SpThe system is responsible for realizing password generation, password verification and password auditing and is a main body for executing the zero-trust management and control of the host password; host password PiIs saved to an identification card CmUpper, main machine MiOn the password setting client program SCiTaking over host login checkCertificate function, password setting client program SCiIdentification of the card C from the identity by means of a card readeriRead the host password PiAutomatically log in after verification, and an identification card C is used for a useriCompletes the host MiAnd (4) secret login is avoided.
The management and control method of the zero-trust-based host password management and control system comprises the following steps:
step one, a host M is connectediThe method comprises the following specific processing steps:
step 1, the host M brought into management and controliInstallation password setting client program SCiPassword setting client program SCiTo password server side SSmSending host identity Uid；
Step 2, password management server SpPassword server side SSmComplete host MiAfter the identity of (2) is confirmed, a host password P is generatediAnd writing into an identification card Ci(ii) a The process is not transmitted over a network;
to ensure the strength of generating the host password, the password server side SSmRandom two-password construction strategy for generating host password Pi；
1) Host password PiConstructing a strategy 1: the total length of the host password is 16 bits, and the host password comprises three of capital letters, lowercase letters, numbers and special characters;
2) host password PiAnd constructing a strategy 2: the total length of the host password is 16 bits, the host password at least comprises two Chinese phonetics, and alphabetic characters are separated by non-alphabetic characters; because the basic dictionary library of the conventional password blasting tool is mostly constructed based on English words, in order to improve the strength of the constructed password, Chinese pinyin is used to replace the English words.
Step 3, host MiOn the password setting client program SCiReading identification card CiAfter the carried password information, modifying the password of the host computer; after the modification is successful, the host M is connectediAnd (3) related information: host computer identification UidNetwork card MAC and IP address are sent to password management clothesServer Sp；
Step 4, password management server SpPassword server side SSmReceiving host MiAfter setting the password of (2), setting the host password PiCarrying out encryption storage;
the encryption process is as follows: generation of salt P using cryptographically secure random numberssaltPassword P of host computer by using SHA512 encryption algorithmiSalt number P ofsaltEncrypting to generate an encrypted password Phash；
Namely: phash＝SHA512(SHA512(Pi)+Psalt)
Password server side SSmHost MiFingerprint information of { UidMAC, IP, password encryption information Phash、PsaltAnd password authorization completion time AtSaving the password in a password database;
step 5, the user needs to log in the host MiAt the same time, the identification card C is read by a card readeriPassword setting client program SCiFrom the identity card CiThe host password is obtained, and the login is automatically completed after the verification is passed;
step two, the host password PiExceeding the validity period T of the passwordmaxAnd then, the host password needs to be updated, and the specific processing steps are as follows:
step 1, password setting client program SCiAutomatic judgment of host password P according to current password authorization timeiWhether it is due; if it is expired, the SS sends the password server endmSending an update password application and locking the host Mi；
Step 2, password server side SSmAfter receiving the password resetting application of the password setting client program SCi, if the identity verification is passed, the host M is modifiediThe state of (1);
step 3, password server side SSmGenerating a new host password Pi' and write in identification card CiPerforming the following steps;
step 4, host MiCard reader reading identification card CiMouth of mouthOrder setting client program SCiFrom the identity card CiReading a new host password to complete host password updating;
step three, the host MiThe method comprises the following specific processing steps of:
step 1, if login failure occurs, the host computer MiPassword setting client program SCiLogging in related information: host computer identification UidSending the login time Lt to the password server side SSmRecording;
step 2, password server side SSmRecording abnormal information, sending abnormal login prompt information to a system administrator, and processing the abnormality by the system administrator;
step 3, if the continuous login fails, accumulating the times EiOver EmaxThen locking the host Mi。
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