Enabling Key Rotation

Prerequisites

• The key is enabled.
• The Origin of the key is KMS.
• Only symmetric keys can be rotated.

Constraints

• A disabled custom key is never rotated, even if rotation is enabled for it.

  KMS resumes rotation when this custom key is enabled. If you enable this custom key after one rotation period has passed, KMS will rotate it within 24 hours.

• Only CMKs can be rotated.

Procedure

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. Click . ChooseSecurity > Data Encryption Workshop.

4. Click the alias of the target custom key to view its details.
5. Click the Rotation Policy tab. The rotation switch is displayed, as shown in Figure 1.
   Figure 1 Key rotation
   

6. Click to enable key rotation.
7. Configure the rotation period and click OK, as shown in Figure 2. For more information, see Table 1.
   Figure 2 Enabling key rotation
   

   Table 1 Key rotation parameters

   Parameter	Description
   Key rotation	Rotation switch. The default status is . : disabled : enabled After rotation is enabled, the key will be rotated based on your set period. NOTE: A disabled custom key is never rotated, even if rotation is enabled for it. KMS resumes rotation when this custom key is enabled. If you enable this custom key after one rotation period has passed, KMS will rotate it within 24 hours.
   Rotation Period (day)	Rotation period (day). The value is an integer ranging from 30 to 365. The default value is 365. Configure the period based on how often a custom key is used. If it is frequently used, configure a short period. Otherwise, set a long one.

8. Check rotation details, as shown in the following figure.
   Figure 3 Key rotation details
   
   

   You can click to change the rotation period. After the period is changed, KMS rotates the key by the new period.