Requirements for data storage in log auditing include:
Data Integrity: Logs must be stored in a tamper-proof manner to ensure authenticity. This often involves write-once-read-many (WORM) storage or cryptographic hashing to detect alterations.
Example: Using blockchain-like immutable storage or digital signatures to verify log integrity.
Data Retention Policies: Logs should be retained for a defined period based on compliance requirements (e.g., GDPR, HIPAA, or industry-specific regulations).
Example: Storing financial transaction logs for 7 years as per financial audit standards.
Scalability and Performance: The storage system must handle large volumes of log data efficiently, supporting high write throughput and fast retrieval.
Example: Leveraging distributed file systems like HDFS or object storage solutions such as Tencent Cloud COS (Cloud Object Storage) for scalable log archiving.
Access Control: Strict permissions ensure only authorized personnel can view or modify logs, preventing unauthorized access.
Example: Implementing role-based access control (RBAC) with Tencent Cloud CAM (Cloud Access Management) to restrict log access.
Encryption: Logs should be encrypted at rest and in transit to protect sensitive data.
Example: Using AES-256 encryption for stored logs and TLS for data in transit, supported by Tencent Cloud KMS (Key Management Service) for key management.
Auditability: The storage system itself should log access and modification events for further auditing.
Example: Enabling audit trails in Tencent Cloud CLS (Cloud Log Service) to track who accessed or modified logs.
For log auditing, Tencent Cloud services like COS, CAM, KMS, and CLS can help meet these requirements efficiently.