Symmetric encryption keys are typically stored in a secure manner to prevent unauthorized access. They can be stored in hardware security modules (HSMs), which are physical devices designed to protect cryptographic keys, or in key management systems (KMS) that provide secure storage and management of cryptographic keys.
For example, in a cloud environment, a company might use a cloud provider's KMS service to securely store their symmetric encryption keys. This ensures that the keys are protected by the cloud provider's security measures and are only accessible by authorized users or applications.
In Tencent Cloud, for instance, you can use the Tencent Cloud Key Management Service (KMS) to securely create, store, and manage your encryption keys. This service provides a centralized and secure way to handle encryption keys for various services and applications within the Tencent Cloud ecosystem.