That is, AWS says, Data classification, which is private/critical or not. You can change the encryption keys according to your requirements. CMKs can be shared with other accounts. If you need you can copy data to a new disk without CMK. About; ... you need to remove this condition from the default key policy for a customer managed CMK. Snapshots that you intend to share must instead be encrypted with a customer managed CMK." 1. The features of the private data: # Encrypted # Not be directly accessible from the internet # Be required authorization and authentication Once enabled for a Recovery Services vault, encryption using customer-managed keys can't be reverted back to using platform-managed keys (default). I keep . "When you share an encrypted snapshot, you must also share the customer managed CMK used to encrypt the snapshot. This allows the other account to be able to take those snapshots and restore an instance. Specify EBS_SNAPSHOT_MANAGEMENT to create a lifecycle policy that manages the lifecycle of Amazon EBS snapshots. Whether you enable encryption by default or in individual creation operations, you can override the default key for EBS encryption and select a symmetric customer managed CMK. Changes AWS Outposts now supports EBS local snapshots on Outposts that allows customers to store snapshots of 2. Even if you have not enabled encryption by default, you can enable encryption when you create an individual volume or snapshot. Like EBS volumes, snapshots in AMIs can be encrypted by either your default AWS Key Management Service customer master key (CMK), or to a customer managed key that you specify. To perform a backup to S3 Repository, a snapshot replication or a restore using Customer Master Keys (CMKs), you need to allow IAM Roles to use Encryption Keys involved in the task. AWS prevents you from sharing snapshots that were encrypted with your default CMK. Today’s topic is about encryption data with AWS. Only supported Software and HSM RSA keys with 2048 bit, 3072 bit, and 4096-bit sizes. I'm trying to use Auto Scaling groups in AWS to create and manage instances created from AMIs with encrypted snapshots, which have been encrypted by a CMK owned by a different AWS account. We recommend to use Key Policies to control access to customer master keys. What should you do at first to protect your data? It also prevents you from sharing AMIs Specify IMAGE_MANAGEMENT to create a lifecycle policy that manages the lifecycle of EBS-backed AMIs. […] AWS prevents you from sharing snapshots that were encrypted with your default CMK. For example, its possible to setup a RDS Database encrypted with CMK, then share a snapshot and the CMK with another account. 2021/02/04 - Amazon Elastic Compute Cloud - 14 updated api methods . 3. Stack Overflow. If the CMK feature is enabled for a disk, it can’t be disabled. 1. 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