Cross-segment file data transmission method and system
By performing identity authentication and pre-security checks on external network transmission devices, encrypting fragments with hard-coded asymmetric keys, and transmitting them unidirectionally through border crossing devices, the problems of poor compatibility, low security, and difficulty in auditing and tracing cross-network segment file transmission in physically isolated environments are solved, achieving efficient and reliable file transmission and compliant auditing.
Patent Information
- Application Number
- CN202610616187.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
In physically isolated environments, existing technologies suffer from poor transmission compatibility, low security, low transmission efficiency and stability, and difficulty in auditing and tracing. In particular, in cross-network segment file transfers, the standard FTP protocol is easily eavesdropped, TCP links are difficult to establish, and there is a lack of pre-security detection and fine-grained log aggregation, which leads to transmission failures when the network fluctuates and makes it difficult to form a legal evidence chain.
External network transmission equipment is used for identity authentication and pre-security checks. Hard-coded asymmetric keys are used to encrypt file fragments, which are then transmitted unidirectionally through a boundary transfer device. Internal network receiving devices perform decryption, reassembly, and hash verification. Combined with underlying port forwarding and breakpoint resume mechanisms, the security and stability of cross-network segment file transfer are achieved.
It effectively prevents malicious code penetration, ensures transmission security, improves transmission efficiency and stability, enables fine-grained compliance auditing and the generation of legal evidence chains, and meets the needs of high-security business operations.
Smart Images
Figure CN122419903A_ABST