Use the destination bucket's default encryption settings.
Preserve
Preserve the object's original Cloud KMS customer-managed encryption key
(CMEK) if present. Objects that do not use a Cloud KMS encryption key
will be encrypted using the destination bucket's encryption settings.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eVersion 2.8.0 is the latest release for the \u003ccode\u003eGoogle.Cloud.StorageTransfer.V1.MetadataOptions.Types.KmsKey\u003c/code\u003e component, with previous versions ranging from 1.0.0 to 2.7.0 also available.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eKmsKey\u003c/code\u003e is an enumeration within the \u003ccode\u003eGoogle.Cloud.StorageTransfer.V1\u003c/code\u003e namespace that offers options for managing the KmsKey settings for Google Cloud Storage objects.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eKmsKey\u003c/code\u003e enum provides three field options: \u003ccode\u003eDestinationBucketDefault\u003c/code\u003e to utilize the destination bucket's default encryption, \u003ccode\u003ePreserve\u003c/code\u003e to maintain the object's original Cloud KMS encryption key if present, and \u003ccode\u003eUnspecified\u003c/code\u003e for when the KmsKey behavior is undefined.\u003c/p\u003e\n"],["\u003cp\u003eThe component is part of the \u003ccode\u003eGoogle.Cloud.StorageTransfer.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"]]],[],null,[]]