pub struct GenerateDataKeyFluentBuilder { /* private fields */ }Expand description
Fluent builder constructing a request to GenerateDataKey.
Returns a unique symmetric data key for use outside of KMS. This operation returns a plaintext copy of the data key and a copy that is encrypted under a symmetric encryption KMS key that you specify. The bytes in the plaintext key are random; they are not related to the caller or the KMS key. You can use the plaintext key to encrypt your data outside of KMS and store the encrypted data key with the encrypted data.
To generate a data key, specify the symmetric encryption KMS key that will be used to encrypt the data key. You cannot use an asymmetric KMS key to encrypt data keys. To get the type of your KMS key, use the DescribeKey operation.
You must also specify the length of the data key. Use either the KeySpec or NumberOfBytes parameters (but not both). For 128-bit and 256-bit data keys, use the KeySpec parameter.
To generate a 128-bit SM4 data key (China Regions only), specify a KeySpec value of AES_128 or a NumberOfBytes value of 16. The symmetric encryption key used in China Regions to encrypt your data key is an SM4 encryption key.
To get only an encrypted copy of the data key, use GenerateDataKeyWithoutPlaintext. To generate an asymmetric data key pair, use the GenerateDataKeyPair or GenerateDataKeyPairWithoutPlaintext operation. To get a cryptographically secure random byte string, use GenerateRandom.
You can use an optional encryption context to add additional security to the encryption operation. If you specify an EncryptionContext, you must specify the same encryption context (a case-sensitive exact match) when decrypting the encrypted data key. Otherwise, the request to decrypt fails with an InvalidCiphertextException. For more information, see Encryption Context in the Key Management Service Developer Guide.
GenerateDataKey also supports Amazon Web Services Nitro Enclaves, which provide an isolated compute environment in Amazon EC2. To call GenerateDataKey for an Amazon Web Services Nitro enclave, use the Amazon Web Services Nitro Enclaves SDK or any Amazon Web Services SDK. Use the Recipient parameter to provide the attestation document for the enclave. GenerateDataKey returns a copy of the data key encrypted under the specified KMS key, as usual. But instead of a plaintext copy of the data key, the response includes a copy of the data key encrypted under the public key from the attestation document (CiphertextForRecipient). For information about the interaction between KMS and Amazon Web Services Nitro Enclaves, see How Amazon Web Services Nitro Enclaves uses KMS in the Key Management Service Developer Guide..
The KMS key that you use for this operation must be in a compatible key state. For details, see Key states of KMS keys in the Key Management Service Developer Guide.
How to use your data key
We recommend that you use the following pattern to encrypt data locally in your application. You can write your own code or use a client-side encryption library, such as the Amazon Web Services Encryption SDK, the Amazon DynamoDB Encryption Client, or Amazon S3 client-side encryption to do these tasks for you.
To encrypt data outside of KMS:
-
Use the
GenerateDataKeyoperation to get a data key. -
Use the plaintext data key (in the
Plaintextfield of the response) to encrypt your data outside of KMS. Then erase the plaintext data key from memory. -
Store the encrypted data key (in the
CiphertextBlobfield of the response) with the encrypted data.
To decrypt data outside of KMS:
-
Use the
Decryptoperation to decrypt the encrypted data key. The operation returns a plaintext copy of the data key. -
Use the plaintext data key to decrypt data outside of KMS, then erase the plaintext data key from memory.
Cross-account use: Yes. To perform this operation with a KMS key in a different Amazon Web Services account, specify the key ARN or alias ARN in the value of the KeyId parameter.
Required permissions: kms:GenerateDataKey (key policy)
Related operations:
-
Decrypt -
Encrypt -
GenerateDataKeyPair -
GenerateDataKeyPairWithoutPlaintext -
GenerateDataKeyWithoutPlaintext
Eventual consistency: The KMS API follows an eventual consistency model. For more information, see KMS eventual consistency.
Implementations§
Source§impl GenerateDataKeyFluentBuilder
impl GenerateDataKeyFluentBuilder
Sourcepub fn as_input(&self) -> &GenerateDataKeyInputBuilder
pub fn as_input(&self) -> &GenerateDataKeyInputBuilder
Access the GenerateDataKey as a reference.
Sourcepub async fn send(
self,
) -> Result<GenerateDataKeyOutput, SdkError<GenerateDataKeyError, HttpResponse>>
pub async fn send( self, ) -> Result<GenerateDataKeyOutput, SdkError<GenerateDataKeyError, HttpResponse>>
Sends the request and returns the response.
If an error occurs, an SdkError will be returned with additional details that
can be matched against.
By default, any retryable failures will be retried twice. Retry behavior is configurable with the RetryConfig, which can be set when configuring the client.
Sourcepub fn customize(
self,
) -> CustomizableOperation<GenerateDataKeyOutput, GenerateDataKeyError, Self>
pub fn customize( self, ) -> CustomizableOperation<GenerateDataKeyOutput, GenerateDataKeyError, Self>
Consumes this builder, creating a customizable operation that can be modified before being sent.
Sourcepub fn key_id(self, input: impl Into<String>) -> Self
pub fn key_id(self, input: impl Into<String>) -> Self
Specifies the symmetric encryption KMS key that encrypts the data key. You cannot specify an asymmetric KMS key or a KMS key in a custom key store. To get the type and origin of your KMS key, use the DescribeKey operation.
To specify a KMS key, use its key ID, key ARN, alias name, or alias ARN. When using an alias name, prefix it with "alias/". To specify a KMS key in a different Amazon Web Services account, you must use the key ARN or alias ARN.
For example:
-
Key ID:
1234abcd-12ab-34cd-56ef-1234567890ab -
Key ARN:
arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab -
Alias name:
alias/ExampleAlias -
Alias ARN:
arn:aws:kms:us-east-2:111122223333:alias/ExampleAlias
To get the key ID and key ARN for a KMS key, use ListKeys or DescribeKey. To get the alias name and alias ARN, use ListAliases.
Sourcepub fn set_key_id(self, input: Option<String>) -> Self
pub fn set_key_id(self, input: Option<String>) -> Self
Specifies the symmetric encryption KMS key that encrypts the data key. You cannot specify an asymmetric KMS key or a KMS key in a custom key store. To get the type and origin of your KMS key, use the DescribeKey operation.
To specify a KMS key, use its key ID, key ARN, alias name, or alias ARN. When using an alias name, prefix it with "alias/". To specify a KMS key in a different Amazon Web Services account, you must use the key ARN or alias ARN.
For example:
-
Key ID:
1234abcd-12ab-34cd-56ef-1234567890ab -
Key ARN:
arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab -
Alias name:
alias/ExampleAlias -
Alias ARN:
arn:aws:kms:us-east-2:111122223333:alias/ExampleAlias
To get the key ID and key ARN for a KMS key, use ListKeys or DescribeKey. To get the alias name and alias ARN, use ListAliases.
Sourcepub fn get_key_id(&self) -> &Option<String>
pub fn get_key_id(&self) -> &Option<String>
Specifies the symmetric encryption KMS key that encrypts the data key. You cannot specify an asymmetric KMS key or a KMS key in a custom key store. To get the type and origin of your KMS key, use the DescribeKey operation.
To specify a KMS key, use its key ID, key ARN, alias name, or alias ARN. When using an alias name, prefix it with "alias/". To specify a KMS key in a different Amazon Web Services account, you must use the key ARN or alias ARN.
For example:
-
Key ID:
1234abcd-12ab-34cd-56ef-1234567890ab -
Key ARN:
arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab -
Alias name:
alias/ExampleAlias -
Alias ARN:
arn:aws:kms:us-east-2:111122223333:alias/ExampleAlias
To get the key ID and key ARN for a KMS key, use ListKeys or DescribeKey. To get the alias name and alias ARN, use ListAliases.
Sourcepub fn encryption_context(
self,
k: impl Into<String>,
v: impl Into<String>,
) -> Self
pub fn encryption_context( self, k: impl Into<String>, v: impl Into<String>, ) -> Self
Adds a key-value pair to EncryptionContext.
To override the contents of this collection use set_encryption_context.
Specifies the encryption context that will be used when encrypting the data key.
Do not include confidential or sensitive information in this field. This field may be displayed in plaintext in CloudTrail logs and other output.
An encryption context is a collection of non-secret key-value pairs that represent additional authenticated data. When you use an encryption context to encrypt data, you must specify the same (an exact case-sensitive match) encryption context to decrypt the data. An encryption context is supported only on operations with symmetric encryption KMS keys. On operations with symmetric encryption KMS keys, an encryption context is optional, but it is strongly recommended.
For more information, see Encryption context in the Key Management Service Developer Guide.
Sourcepub fn set_encryption_context(
self,
input: Option<HashMap<String, String>>,
) -> Self
pub fn set_encryption_context( self, input: Option<HashMap<String, String>>, ) -> Self
Specifies the encryption context that will be used when encrypting the data key.
Do not include confidential or sensitive information in this field. This field may be displayed in plaintext in CloudTrail logs and other output.
An encryption context is a collection of non-secret key-value pairs that represent additional authenticated data. When you use an encryption context to encrypt data, you must specify the same (an exact case-sensitive match) encryption context to decrypt the data. An encryption context is supported only on operations with symmetric encryption KMS keys. On operations with symmetric encryption KMS keys, an encryption context is optional, but it is strongly recommended.
For more information, see Encryption context in the Key Management Service Developer Guide.
Sourcepub fn get_encryption_context(&self) -> &Option<HashMap<String, String>>
pub fn get_encryption_context(&self) -> &Option<HashMap<String, String>>
Specifies the encryption context that will be used when encrypting the data key.
Do not include confidential or sensitive information in this field. This field may be displayed in plaintext in CloudTrail logs and other output.
An encryption context is a collection of non-secret key-value pairs that represent additional authenticated data. When you use an encryption context to encrypt data, you must specify the same (an exact case-sensitive match) encryption context to decrypt the data. An encryption context is supported only on operations with symmetric encryption KMS keys. On operations with symmetric encryption KMS keys, an encryption context is optional, but it is strongly recommended.
For more information, see Encryption context in the Key Management Service Developer Guide.
Sourcepub fn number_of_bytes(self, input: i32) -> Self
pub fn number_of_bytes(self, input: i32) -> Self
Specifies the length of the data key in bytes. For example, use the value 64 to generate a 512-bit data key (64 bytes is 512 bits). For 128-bit (16-byte) and 256-bit (32-byte) data keys, use the KeySpec parameter.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn set_number_of_bytes(self, input: Option<i32>) -> Self
pub fn set_number_of_bytes(self, input: Option<i32>) -> Self
Specifies the length of the data key in bytes. For example, use the value 64 to generate a 512-bit data key (64 bytes is 512 bits). For 128-bit (16-byte) and 256-bit (32-byte) data keys, use the KeySpec parameter.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn get_number_of_bytes(&self) -> &Option<i32>
pub fn get_number_of_bytes(&self) -> &Option<i32>
Specifies the length of the data key in bytes. For example, use the value 64 to generate a 512-bit data key (64 bytes is 512 bits). For 128-bit (16-byte) and 256-bit (32-byte) data keys, use the KeySpec parameter.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn key_spec(self, input: DataKeySpec) -> Self
pub fn key_spec(self, input: DataKeySpec) -> Self
Specifies the length of the data key. Use AES_128 to generate a 128-bit symmetric key, or AES_256 to generate a 256-bit symmetric key.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn set_key_spec(self, input: Option<DataKeySpec>) -> Self
pub fn set_key_spec(self, input: Option<DataKeySpec>) -> Self
Specifies the length of the data key. Use AES_128 to generate a 128-bit symmetric key, or AES_256 to generate a 256-bit symmetric key.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn get_key_spec(&self) -> &Option<DataKeySpec>
pub fn get_key_spec(&self) -> &Option<DataKeySpec>
Specifies the length of the data key. Use AES_128 to generate a 128-bit symmetric key, or AES_256 to generate a 256-bit symmetric key.
You must specify either the KeySpec or the NumberOfBytes parameter (but not both) in every GenerateDataKey request.
Sourcepub fn grant_tokens(self, input: impl Into<String>) -> Self
pub fn grant_tokens(self, input: impl Into<String>) -> Self
Appends an item to GrantTokens.
To override the contents of this collection use set_grant_tokens.
A list of grant tokens.
Use a grant token when your permission to call this operation comes from a new grant that has not yet achieved eventual consistency. For more information, see Grant token and Using a grant token in the Key Management Service Developer Guide.
Sourcepub fn set_grant_tokens(self, input: Option<Vec<String>>) -> Self
pub fn set_grant_tokens(self, input: Option<Vec<String>>) -> Self
A list of grant tokens.
Use a grant token when your permission to call this operation comes from a new grant that has not yet achieved eventual consistency. For more information, see Grant token and Using a grant token in the Key Management Service Developer Guide.
Sourcepub fn get_grant_tokens(&self) -> &Option<Vec<String>>
pub fn get_grant_tokens(&self) -> &Option<Vec<String>>
A list of grant tokens.
Use a grant token when your permission to call this operation comes from a new grant that has not yet achieved eventual consistency. For more information, see Grant token and Using a grant token in the Key Management Service Developer Guide.
Sourcepub fn recipient(self, input: RecipientInfo) -> Self
pub fn recipient(self, input: RecipientInfo) -> Self
A signed attestation document from an Amazon Web Services Nitro enclave and the encryption algorithm to use with the enclave's public key. The only valid encryption algorithm is RSAES_OAEP_SHA_256.
This parameter only supports attestation documents for Amazon Web Services Nitro Enclaves. To include this parameter, use the Amazon Web Services Nitro Enclaves SDK or any Amazon Web Services SDK.
When you use this parameter, instead of returning the plaintext data key, KMS encrypts the plaintext data key 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 enclave. The CiphertextBlob field in the response contains a copy of the data key encrypted under the KMS key specified by the KeyId parameter. The Plaintext field in the response is null or empty.
For information about the interaction between KMS and Amazon Web Services Nitro Enclaves, see How Amazon Web Services Nitro Enclaves uses KMS in the Key Management Service Developer Guide.
Sourcepub fn set_recipient(self, input: Option<RecipientInfo>) -> Self
pub fn set_recipient(self, input: Option<RecipientInfo>) -> Self
A signed attestation document from an Amazon Web Services Nitro enclave and the encryption algorithm to use with the enclave's public key. The only valid encryption algorithm is RSAES_OAEP_SHA_256.
This parameter only supports attestation documents for Amazon Web Services Nitro Enclaves. To include this parameter, use the Amazon Web Services Nitro Enclaves SDK or any Amazon Web Services SDK.
When you use this parameter, instead of returning the plaintext data key, KMS encrypts the plaintext data key 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 enclave. The CiphertextBlob field in the response contains a copy of the data key encrypted under the KMS key specified by the KeyId parameter. The Plaintext field in the response is null or empty.
For information about the interaction between KMS and Amazon Web Services Nitro Enclaves, see How Amazon Web Services Nitro Enclaves uses KMS in the Key Management Service Developer Guide.
Sourcepub fn get_recipient(&self) -> &Option<RecipientInfo>
pub fn get_recipient(&self) -> &Option<RecipientInfo>
A signed attestation document from an Amazon Web Services Nitro enclave and the encryption algorithm to use with the enclave's public key. The only valid encryption algorithm is RSAES_OAEP_SHA_256.
This parameter only supports attestation documents for Amazon Web Services Nitro Enclaves. To include this parameter, use the Amazon Web Services Nitro Enclaves SDK or any Amazon Web Services SDK.
When you use this parameter, instead of returning the plaintext data key, KMS encrypts the plaintext data key 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 enclave. The CiphertextBlob field in the response contains a copy of the data key encrypted under the KMS key specified by the KeyId parameter. The Plaintext field in the response is null or empty.
For information about the interaction between KMS and Amazon Web Services Nitro Enclaves, see How Amazon Web Services Nitro Enclaves uses KMS in the Key Management Service Developer Guide.
Sourcepub fn dry_run(self, input: bool) -> Self
pub fn dry_run(self, input: bool) -> Self
Checks if your request will succeed. DryRun is an optional parameter.
To learn more about how to use this parameter, see Testing your KMS API calls in the Key Management Service Developer Guide.
Sourcepub fn set_dry_run(self, input: Option<bool>) -> Self
pub fn set_dry_run(self, input: Option<bool>) -> Self
Checks if your request will succeed. DryRun is an optional parameter.
To learn more about how to use this parameter, see Testing your KMS API calls in the Key Management Service Developer Guide.
Sourcepub fn get_dry_run(&self) -> &Option<bool>
pub fn get_dry_run(&self) -> &Option<bool>
Checks if your request will succeed. DryRun is an optional parameter.
To learn more about how to use this parameter, see Testing your KMS API calls in the Key Management Service Developer Guide.
Trait Implementations§
Source§impl Clone for GenerateDataKeyFluentBuilder
impl Clone for GenerateDataKeyFluentBuilder
Source§fn clone(&self) -> GenerateDataKeyFluentBuilder
fn clone(&self) -> GenerateDataKeyFluentBuilder
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreAuto Trait Implementations§
impl Freeze for GenerateDataKeyFluentBuilder
impl !RefUnwindSafe for GenerateDataKeyFluentBuilder
impl Send for GenerateDataKeyFluentBuilder
impl Sync for GenerateDataKeyFluentBuilder
impl Unpin for GenerateDataKeyFluentBuilder
impl !UnwindSafe for GenerateDataKeyFluentBuilder
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