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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThe content provides reference documentation for the \u003ccode\u003eMetadataOptions.Types.KmsKey\u003c/code\u003e enum within the Storage Transfer v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThis enum defines options for managing the KmsKey setting for Google Cloud Storage objects.\u003c/p\u003e\n"],["\u003cp\u003eThere are three available fields within the \u003ccode\u003eMetadataOptions.Types.KmsKey\u003c/code\u003e enum, which are \u003ccode\u003eDestinationBucketDefault\u003c/code\u003e, \u003ccode\u003ePreserve\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e, each with its own specific behavior related to encryption settings.\u003c/p\u003e\n"],["\u003cp\u003eThe available versions for this API range from the latest 2.8.0, all the way down to 1.0.0, each version having a link to it's documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe namespace of this documentation is under Google.Cloud.StorageTransfer.V1, and is present in the Google.Cloud.StorageTransfer.V1.dll assembly.\u003c/p\u003e\n"]]],[],null,[]]