Which of the following is NOT a common reason to implement key escrow?

Implementing key escrow involves storing encryption keys with a trusted third party to ensure that authorized entities can access encrypted data under specific circumstances. One of the main reasons for establishing a key escrow system is to facilitate backup recovery. In the event that a key is lost or compromised, having an escrow system in place allows for recovering the encryption key, making it easier to restore access to critical data.

Another common reason for key escrow is enabling law enforcement access. In situations where legal authorities need access to encrypted data as part of an investigation, having escrowed keys allows them to decrypt the data without compromising the security measures put in place by organizations.

Ensuring compliance with regulations is another significant motivator for using key escrow. Certain industries, such as finance or healthcare, may have legal requirements to provide access to encrypted data in specific scenarios, making key escrow a viable solution to remain compliant with such regulations.

The option suggesting that key escrow prevents the need for key rotation after a user leaves is not a typical reason for its implementation. Key rotation is an important security practice to mitigate risks associated with old keys potentially being compromised. When an employee leaves an organization, to maintain security, their access needs to be revoked, typically by changing or rotating keys. Thus, key escrow does