Hierarchical protection server cipher machine key management method
By adopting a high-security random number generator and hierarchical architecture in the server password key management method, the problem of insufficient key generation complexity and security in the prior art is solved, and the high security of keys is achieved and improve overall system security.
Patent Information
- Application Number
- CN202411416016.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-02-25
AI Technical Summary
The existing server password key management method relies on a simple random number generation algorithm, which does not fully consider the complexity and security of key generation, and generally protects the key through software encryption or simple hardware storage devices, resulting in a secret. The key is less secure.
Using a high-security random number generator to generate keys, and through detailed initialization marks and fine hierarchical architecture design, we ensure the randomness and unpredictability of keys, while implementing strict access control and clear life cycle management. , regular updates and audit measures to improve overall security.
Through a high-security random number generator and hierarchical architecture, we ensure the randomness and security of keys, reduce the chain harm caused by key leakage, and improve the security of the overall system.
Smart Images
Figure CN119520015A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of key management, and in particular to a method for managing key of a server cryptographic machine with layered protection. Background Art
[0002] Server cryptographic machine key management method refers to a series of technologies and procedures used to protect, generate, store, distribute, use, update, revoke and destroy keys in server cryptographic machines. This method aims to ensure the confidentiality, integrity and availability of keys to maintain the overall security of the cryptographic system.
[0003] Existing server cryptographic machine key management methods generally rely on simple random number generation algorithms, without fully considering the complexity and security of key generation. At the same time, keys are generally protected through software encryption or simple hardware storage devices, and the key security is relatively low.
[0004] In view of the fact that the existing server cryptographic machine key management methods generally rely on simple random number generation algorithms and do not fully consider the complexity and security of key generation, this server cryptographic machine key management method adopts a high-security random number generator to ensure the randomness and unpredictability of the key. At the same time, it performs detailed initialization marking on the key and designs a more sophisticated hierarchical architecture, which helps to better manage keys of different security levels and improve overall security. Summary of the invention
[0005] In order to overcome the problem that the existing server cryptographic machine key management methods generally rely on simple random number generation algorithms, do not fully consider the complexity and security of key generation, and generally protect keys through software encryption or simple hardware storage devices, resulting in low key security.
[0006] The technical solution of the present invention is: a layered protection server cryptographic machine key management method, including the following methods: S11: Generate and initialize the key and ensure that the length and complexity of the key meet the security standards; S12: Design a hierarchical architecture for keys to ensure that only the upper-layer keys can decrypt the lower-layer keys; S13: The key is stored and protected and encrypted; S14: distribute the key to authorized users or systems through a secure channel; S15: Implement strict access control policies to limit access to and use of keys; S16: Set a clear life cycle for the key; S17: Update and rotate keys regularly, and immediately trigger the key revocation mechanism when the key is leaked or lost; S18: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements.
[0007] Preferably, when generating the key, the following steps are included: S21: Select the appropriate key type and key length; S22: Generate keys using a secure random number generator to ensure randomness and unpredictability of the keys; S23: Perform a quality check on the generated key to ensure that it meets security requirements.
[0008] Preferably, when the keys are layered, the following steps are included: S31: According to the importance and purpose of the key, the key is divided into three layers: root key, key encryption key and working key; S32: Ensure that the lower-level key is protected by the upper-level key.
[0009] Preferably, when storing the key, the following steps are included: S41: Select hardware storage devices or secure cloud storage services based on security requirements; S42: All keys are encrypted to prevent unauthorized access; S43: Make redundant backups of critical keys and store them in a physically isolated and secure location.
[0010] Preferably, when distributing the key, the following steps are included: S51: Develop appropriate key distribution strategies based on the security requirements and key levels of both communicating parties; S52: Use a secure channel to distribute keys to ensure security during transmission; S53: Ensure that the recipient receives the key correctly and confirm the distribution.
[0011] Preferably, when the key is used, the following steps are included: S61: Implement strict access control policies to ensure that only authorized users can access and use keys; S62: Use key handles instead of key plaintext to reduce the risk of key leakage; S63: Monitor and audit the use of keys to ensure compliance and traceability.
[0012] Preferably, when the key is updated, the following steps are included: S71: Develop a key update plan based on the key life cycle and security policy; S72: During the key update process, ensure that there is no correlation between the new key and the old key, and safely destroy the old key; S73: Update the key distribution list in a timely manner and notify all relevant parties to use the new key.
[0013] Preferably, when revoking a key, the following steps are included: S81: When the key is leaked, lost or no longer needed, the key revocation condition is triggered; S82: Delete or disable the key from all storage locations and update the key distribution list; S83: Notify all relevant parties that the key has been revoked and provide a replacement key.
[0014] Preferably, when auditing the key, the following steps are included: S91: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements; S92: Generate a report based on the audit results, and analyze and rectify the problems found; S93: Continuously improve and optimize key management methods based on audit results and business needs.
[0015] Preferably, when backing up and restoring the key, the following steps are included: S1001: Develop an appropriate backup strategy based on the importance and availability requirements of the key; S1002: Back up the key regularly according to the backup strategy and store it in a safe location; S1003: Perform key recovery drills regularly to ensure that key availability can be quickly restored when needed.
[0016] Preferably, through a hierarchical structure, the keys are divided into different levels such as root keys, key encryption keys and working keys. The keys of each level are protected at different levels, reducing the impact of a single key leak on the security of the entire system. At the same time, hierarchical management makes the keys of each level relatively independent. Even if the keys of a certain level are leaked or damaged, it will not have a devastating impact on the entire key system. This helps to reduce the chain damage caused by key leaks.
[0017] Beneficial effects of the present invention: 1. Compared with the traditional server cryptographic machine key management method, which generally relies on a simple random number generation algorithm and does not fully consider the complexity and security of key generation, and generally protects the key through software encryption or simple hardware storage devices, the key security is relatively low. This server cryptographic machine key management method adopts a high-security random number generator to ensure the randomness and unpredictability of the key. At the same time, it performs detailed initialization marking on the key and designs a more sophisticated hierarchical architecture, which helps to better manage keys of different security levels and improve overall security. 2. Through the hierarchical structure, the keys are divided into different levels such as root keys, key encryption keys and working keys. The keys of each level are protected at different levels, reducing the impact of a single key leak on the security of the entire system. At the same time, hierarchical management makes the keys of each level relatively independent. Even if the keys of a certain level are leaked or damaged, it will not have a devastating impact on the entire key system. This helps to reduce the chain damage caused by key leaks. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The flowchart of the method for managing the key of the server cryptographic machine with hierarchical protection of the present invention is shown; Figure 2 The key generation process diagram of the key management method of the server cryptographic machine with layered protection of the present invention is shown; Figure 3 What is shown is a schematic diagram of the key hierarchical process of the layered protection server cryptographic machine key management method of the present invention. DETAILED DESCRIPTION
[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] See also Figure 1-3 The present invention provides an embodiment: a layered protection server cryptographic machine key management method, including the following methods: S11: Generate and initialize the key and ensure that the length and complexity of the key meet the security standards; S12: Design a hierarchical architecture for keys to ensure that only the upper-layer keys can decrypt the lower-layer keys; S13: The key is stored and protected and encrypted; S14: distribute the key to authorized users or systems through a secure channel; S15: Implement strict access control policies to limit access to and use of keys; S16: Set a clear life cycle for the key; S17: Update and rotate keys regularly, and immediately trigger the key revocation mechanism when the key is leaked or lost; S18: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements.
[0021] Preferably, when generating the key, the following steps are included: S21: Select the appropriate key type and key length; S22: Generate keys using a secure random number generator to ensure randomness and unpredictability of the keys; S23: Perform a quality check on the generated key to ensure that it meets security requirements.
[0022] Preferably, when the keys are layered, the following steps are included: S31: According to the importance and purpose of the key, the key is divided into three layers: root key, key encryption key and working key; S32: Ensure that the lower-level key is protected by the upper-level key.
[0023] Preferably, when storing the key, the following steps are included: S41: Select hardware storage devices or secure cloud storage services based on security requirements; S42: All keys are encrypted to prevent unauthorized access; S43: Make redundant backups of critical keys and store them in a physically isolated and secure location.
[0024] Preferably, when distributing the key, the following steps are included: S51: Develop appropriate key distribution strategies based on the security requirements and key levels of both communicating parties; S52: Use a secure channel to distribute keys to ensure security during transmission; S53: Ensure that the recipient receives the key correctly and confirm the distribution.
[0025] Preferably, when the key is used, the following steps are included: S61: Implement strict access control policies to ensure that only authorized users can access and use keys; S62: Use key handles instead of key plaintext to reduce the risk of key leakage; S63: Monitor and audit the use of keys to ensure compliance and traceability.
[0026] Preferably, when the key is updated, the following steps are included: S71: Develop a key update plan based on the key life cycle and security policy; S72: During the key update process, ensure that there is no correlation between the new key and the old key, and safely destroy the old key; S73: Update the key distribution list in a timely manner and notify all relevant parties to use the new key.
[0027] Preferably, when revoking a key, the following steps are included: S81: When the key is leaked, lost or no longer needed, the key revocation condition is triggered; S82: Delete or disable the key from all storage locations and update the key distribution list; S83: Notify all relevant parties that the key has been revoked and provide a replacement key.
[0028] Preferably, when auditing the key, the following steps are included: S91: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements; S92: Generate a report based on the audit results, and analyze and rectify the problems found; S93: Continuously improve and optimize key management methods based on audit results and business needs.
[0029] Preferably, when backing up and restoring the key, the following steps are included: S1001: Develop an appropriate backup strategy based on the importance and availability requirements of the key; S1002: Back up the key regularly according to the backup strategy and store it in a safe location; S1003: Perform key recovery drills regularly to ensure that key availability can be quickly restored when needed.
[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.
Claims
1. A method for managing server cryptographic machine keys with layered protection; characterized in that: The following methods are included: S11: Generate and initialize the key and ensure that the length and complexity of the key meet the security standards; S12: Design a hierarchical architecture for keys to ensure that only the upper-layer keys can decrypt the lower-layer keys; S13: The key is stored and protected and encrypted; S14: distribute the key to authorized users or systems through a secure channel; S15: Implement strict access control policies to limit access to and use of keys; S16: Set a clear life cycle for the key; S17: Update and rotate keys regularly, and immediately trigger the key revocation mechanism when the key is leaked or lost; S18: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements.
2. The method for managing server cryptographic machine keys with hierarchical protection according to claim 1, characterized in that: When generating the key, the following steps are included: S21: Select the appropriate key type and key length; S22: Generate keys using a secure random number generator to ensure randomness and unpredictability of the keys; S23: Perform a quality check on the generated key to ensure that it meets security requirements.
3. The method for managing server cryptographic machine keys with layered protection according to claim 2, characterized in that: When stratifying keys, the following steps are involved: S31: According to the importance and purpose of the key, the key is divided into three layers: root key, key encryption key and working key; S32: Ensure that the lower-level key is protected by the upper-level key.
4. The method for managing server cryptographic machine keys with layered protection according to claim 3 is characterized in that: When storing the key, the following steps are included: S41: Select hardware storage devices or secure cloud storage services based on security requirements; S42: All keys are encrypted to prevent unauthorized access; S43: Make redundant backups of critical keys and store them in a physically isolated and secure location.
5. The method for managing server cryptographic machine keys with layered protection according to claim 4 is characterized in that: When distributing the key, the following steps are included: S51: Develop appropriate key distribution strategies based on the security requirements and key levels of both communicating parties; S52: Use a secure channel to distribute keys to ensure security during transmission; S53: Ensure that the recipient receives the key correctly and confirm the distribution.
6. The method for managing server cryptographic machine keys with layered protection according to claim 5 is characterized in that: When using the key, the following steps are included: S61: Implement strict access control policies to ensure that only authorized users can access and use keys; S62: Use key handles instead of key plaintext to reduce the risk of key leakage; S63: Monitor and audit the use of keys to ensure compliance and traceability.
7. The method for managing server cryptographic machine keys with layered protection according to claim 6 is characterized in that: When updating the key, the following steps are included: S71: Develop a key update plan based on the key life cycle and security policy; S72: During the key update process, ensure that there is no correlation between the new key and the old key, and safely destroy the old key; S73: Update the key distribution list in a timely manner and notify all relevant parties to use the new key.
8. The method for managing server cryptographic machine keys with layered protection according to claim 7, characterized in that: When revoking a key, the following steps are included: S81: When the key is leaked, lost or no longer needed, the key revocation condition is triggered; S82: Delete or disable the key from all storage locations and update the key distribution list; S83: Notify all relevant parties that the key has been revoked and provide a replacement key.
9. The method for managing server cryptographic machine keys with layered protection according to claim 8, characterized in that: When auditing a key, the following steps are included: S91: Audit the key management process regularly to check whether it complies with security policies and regulatory requirements; S92: Generate a report based on the audit results, and analyze and rectify the problems found; S93: Continuously improve and optimize key management methods based on audit results and business needs.
10. The method for managing server cryptographic machine keys with layered protection according to claim 9, characterized in that: When backing up and restoring the key, the following steps are included: S1001: Develop an appropriate backup strategy based on the importance and availability requirements of the key; S1002: Back up the key regularly according to the backup strategy and store it in a safe location; S1003: Perform key recovery drills regularly to ensure that key availability can be quickly restored when needed.