recipient

construct an aws.sdk.kotlin.services.kms.model.RecipientInfo inside the given block

A signed attestation document from an Amazon Web Services Nitro enclave or NitroTPM, and the encryption algorithm to use with the public key in the attestation document. The only valid encryption algorithm is RSAES_OAEP_SHA_256.

This parameter only supports attestation documents for Amazon Web Services Nitro Enclaves or Amazon Web Services NitroTPM. To call DeriveSharedSecret generate an attestation document use either Amazon Web Services Nitro Enclaves SDK for an Amazon Web Services Nitro Enclaves or Amazon Web Services NitroTPM tools for Amazon Web Services NitroTPM. Then use the Recipient parameter from any Amazon Web Services SDK to provide the attestation document for the attested environment.

When you use this parameter, instead of returning a plaintext copy of the shared secret, KMS encrypts the plaintext shared secret under the public key in the attestation document, and returns the resulting ciphertext in the CiphertextForRecipient field in the response. This ciphertext can be decrypted only with the private key in the attested environment. The CiphertextBlob field in the response contains the encrypted shared secret derived from the KMS key specified by the KeyId parameter and public key specified by the PublicKey parameter. The SharedSecret field in the response is null or empty.

For information about the interaction between KMS and Amazon Web Services Nitro Enclaves or Amazon Web Services NitroTPM, see Cryptographic attestation support in KMS in the Key Management Service Developer Guide.