A financial services company logs personally identifiable information to its application logs stored in Amazon S3. Due to regulatory compliance requirements, the log files must be encrypted at rest. The security team has mandated that the company’s on-premises hardware security modules (HSMs) be used to generate the CMK material.
Which steps should the solutions architect take to meet these requirements?
A. Create an AWS CloudHSM cluster. Create a new CMK in AWS KMS using AWS_CloudHSM as the source for the key material and an origin of AWS_CLOUDHSM. Enable automatic key rotation on the CMK with a duration of 1 year.Configure a bucket policy on the logging bucket that disallows uploads of unencrypted data and requires that the encryption source be AWS KMS.
B. Provision an AWS Direct Connect connection, ensuring there is no overlap of the RFC 1918 address space between on-premises hardware and the VPCs. Configure an AWS bucket policy on the logging bucket that requires all objectsto be encrypted. Configure the logging application to query the on-premises HSMs from the AWS environment for the encryption key material, and create a unique CMK for each logging event.
C. Create a CMK in AWS KMS with no key material and an origin of EXTERNAL. Import the key material generated from the on-premises HSMs into the CMK using the public key and import token provided by AWS. Configure a bucketpolicy on the logging bucket that disallows uploads of non-encrypted data and requires that the encryption source be AWS KMS.
D. Create a new CMK in AWS KMS with AWS-provided key material and an origin of AWS_KMS. Disable this CMK, and overwrite the key material with the key material from the on-premises HSM using the public key and import tokenprovided by AWS. Re-enable the CMK. Enable automatic key rotation on the CMK with a duration of 1 year. Configure a bucket policy on the logging bucket that disallows uploads of non-encrypted data and requires that the encryption source be AWS KMS.
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