Data encryption in video surveillance is used to protect video streams and stored footage from unauthorized access, tampering, or interception during transmission or at rest. It ensures that sensitive visual data remains confidential and secure, especially in applications like public safety, corporate security, or critical infrastructure monitoring.
How It Works
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Encryption During Transmission (In Transit)
- Video data is encrypted before being sent over networks (e.g., from cameras to servers or cloud storage).
- Protocols like TLS (Transport Layer Security) or IPSec secure the communication channel.
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Encryption at Rest (Storage)
- Recorded footage is encrypted before being saved on local drives, NAS (Network Attached Storage), or cloud platforms.
- Algorithms like AES-256 (Advanced Encryption Standard) are commonly used for strong protection.
Examples
- Real-Time Surveillance: A security camera streams video to a monitoring center over an encrypted TLS connection, preventing hackers from intercepting the feed.
- Cloud Storage: Recorded footage is uploaded to a cloud service with AES-256 encryption, ensuring only authorized users with decryption keys can access it.
Recommended Solution
For secure video surveillance, Tencent Cloud offers VOD (Video on Demand) and CSS (Cloud Streaming Services) with built-in encryption, ensuring data protection both in transit and at rest. Additionally, Tencent Cloud KMS (Key Management Service) helps manage encryption keys securely.