Traditionally, AWS Lambda secured code artifacts using default AWS-owned keys. As of late 2024, AWS introduced support for encrypting these .zip deployment packages using keys that customers create and manage themselves via the AWS Key Management Service (KMS).
: All attempts to use the key for encryption or decryption are logged in AWS CloudTrail , providing an independent audit trail of who accessed the code and when. How it Works The process typically follows an envelope encryption model: Cmk zip
In technical contexts, "" primarily refers to the use of Customer Managed Keys (CMKs) to encrypt Lambda function code .zip artifacts within Amazon Web Services (AWS) . Overview of CMK for Zip Artifacts How it Works The process typically follows an
: If a customer disables or deletes the CMK, Lambda can no longer access the .zip artifacts, effectively revoking access to the function code immediately. Cmk zip
: Using a CMK allows organizations to satisfy strict security and governance requirements by maintaining full ownership of the encryption keys.