Struct aws_sdk_kms::client::fluent_builders::CreateKey

pub struct CreateKey { /* private fields */ }

Fluent builder constructing a request to CreateKey.

Creates a unique customer managed KMS key in your Amazon Web Services account and Region.

In addition to the required parameters, you can use the optional parameters to specify a key policy, description, tags, and other useful elements for any key type.

KMS is replacing the term customer master key (CMK) with KMS key and KMS key. The concept has not changed. To prevent breaking changes, KMS is keeping some variations of this term.

To create different types of KMS keys, use the following guidance:

Symmetric encryption KMS key

To create a symmetric encryption KMS key, you aren't required to specify any parameters. The default value for KeySpec, SYMMETRIC_DEFAULT, and the default value for KeyUsage, ENCRYPT_DECRYPT, create a symmetric encryption KMS key. For technical details, see SYMMETRIC_DEFAULT key spec in the Key Management Service Developer Guide.

If you need a key for basic encryption and decryption or you are creating a KMS key to protect your resources in an Amazon Web Services service, create a symmetric encryption KMS key. The key material in a symmetric encryption key never leaves KMS unencrypted. You can use a symmetric encryption KMS key to encrypt and decrypt data up to 4,096 bytes, but they are typically used to generate data keys and data keys pairs. For details, see GenerateDataKey and GenerateDataKeyPair.

Asymmetric KMS keys

To create an asymmetric KMS key, use the KeySpec parameter to specify the type of key material in the KMS key. Then, use the KeyUsage parameter to determine whether the KMS key will be used to encrypt and decrypt or sign and verify. You can't change these properties after the KMS key is created.

Asymmetric KMS keys contain an RSA key pair, Elliptic Curve (ECC) key pair, or an SM2 key pair (China Regions only). The private key in an asymmetric KMS key never leaves KMS unencrypted. However, you can use the GetPublicKey operation to download the public key so it can be used outside of KMS. KMS keys with RSA or SM2 key pairs can be used to encrypt or decrypt data or sign and verify messages (but not both). KMS keys with ECC key pairs can be used only to sign and verify messages. For information about asymmetric KMS keys, see Asymmetric KMS keys in the Key Management Service Developer Guide.

HMAC KMS key

To create an HMAC KMS key, set the KeySpec parameter to a key spec value for HMAC KMS keys. Then set the KeyUsage parameter to GENERATE_VERIFY_MAC. You must set the key usage even though GENERATE_VERIFY_MAC is the only valid key usage value for HMAC KMS keys. You can't change these properties after the KMS key is created.

HMAC KMS keys are symmetric keys that never leave KMS unencrypted. You can use HMAC keys to generate (GenerateMac) and verify (VerifyMac) HMAC codes for messages up to 4096 bytes.

HMAC KMS keys are not supported in all Amazon Web Services Regions. If you try to create an HMAC KMS key in an Amazon Web Services Region in which HMAC keys are not supported, the CreateKey operation returns an UnsupportedOperationException. For a list of Regions in which HMAC KMS keys are supported, see HMAC keys in KMS in the Key Management Service Developer Guide.

Multi-Region primary keys

Imported key material

To create a multi-Region primary key in the local Amazon Web Services Region, use the MultiRegion parameter with a value of True. To create a multi-Region replica key, that is, a KMS key with the same key ID and key material as a primary key, but in a different Amazon Web Services Region, use the ReplicateKey operation. To change a replica key to a primary key, and its primary key to a replica key, use the UpdatePrimaryRegion operation.

You can create multi-Region KMS keys for all supported KMS key types: symmetric encryption KMS keys, HMAC KMS keys, asymmetric encryption KMS keys, and asymmetric signing KMS keys. You can also create multi-Region keys with imported key material. However, you can't create multi-Region keys in a custom key store.

This operation supports multi-Region keys, an KMS feature that lets you create multiple interoperable KMS keys in different Amazon Web Services Regions. Because these KMS keys have the same key ID, key material, and other metadata, you can use them interchangeably to encrypt data in one Amazon Web Services Region and decrypt it in a different Amazon Web Services Region without re-encrypting the data or making a cross-Region call. For more information about multi-Region keys, see Multi-Region keys in KMS in the Key Management Service Developer Guide.

To import your own key material, begin by creating a symmetric encryption KMS key with no key material. To do this, use the Origin parameter of CreateKey with a value of EXTERNAL. Next, use GetParametersForImport operation to get a public key and import token, and use the public key to encrypt your key material. Then, use ImportKeyMaterial with your import token to import the key material. For step-by-step instructions, see Importing Key Material in the Key Management Service Developer Guide .

This feature supports only symmetric encryption KMS keys, including multi-Region symmetric encryption KMS keys. You cannot import key material into any other type of KMS key.

To create a multi-Region primary key with imported key material, use the Origin parameter of CreateKey with a value of EXTERNAL and the MultiRegion parameter with a value of True. To create replicas of the multi-Region primary key, use the ReplicateKey operation. For more information about multi-Region keys, see Multi-Region keys in KMS in the Key Management Service Developer Guide.

Custom key store

To create a symmetric encryption KMS key in a custom key store, use the CustomKeyStoreId parameter to specify the custom key store. You must also use the Origin parameter with a value of AWS_CLOUDHSM. The CloudHSM cluster that is associated with the custom key store must have at least two active HSMs in different Availability Zones in the Amazon Web Services Region.

Custom key stores support only symmetric encryption KMS keys. You cannot create an HMAC KMS key or an asymmetric KMS key in a custom key store. For information about custom key stores in KMS see Custom key stores in KMS in the Key Management Service Developer Guide .

Cross-account use: No. You cannot use this operation to create a KMS key in a different Amazon Web Services account.

Required permissions: kms:CreateKey (IAM policy). To use the Tags parameter, kms:TagResource (IAM policy). For examples and information about related permissions, see Allow a user to create KMS keys in the Key Management Service Developer Guide.

Related operations:

• DescribeKey

• ListKeys

• ScheduleKeyDeletion

Implementations

impl CreateKey

pub async fn customize(
    self
) -> Result<CustomizableOperation<CreateKey, AwsResponseRetryClassifier>, SdkError<CreateKeyError>>

Consume this builder, creating a customizable operation that can be modified before being sent. The operation’s inner http::Request can be modified as well.

pub async fn send(self) -> Result<CreateKeyOutput, SdkError<CreateKeyError>>

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.

pub fn policy(self, input: impl Into<String>) -> Self

The key policy to attach to the KMS key. If you do not specify a key policy, KMS attaches a default key policy to the KMS key. For more information, see Default key policy in the Key Management Service Developer Guide.

If you provide a key policy, it must meet the following criteria:

• If you don't set BypassPolicyLockoutSafetyCheck to True, the key policy must allow the principal that is making the CreateKey request to make a subsequent PutKeyPolicy request on the KMS key. This reduces the risk that the KMS key becomes unmanageable. For more information, refer to the scenario in the Default Key Policy section of the Key Management Service Developer Guide .

• Each statement in the key policy must contain one or more principals. The principals in the key policy must exist and be visible to KMS. When you create a new Amazon Web Services principal (for example, an IAM user or role), you might need to enforce a delay before including the new principal in a key policy because the new principal might not be immediately visible to KMS. For more information, see Changes that I make are not always immediately visible in the Amazon Web Services Identity and Access Management User Guide.

A key policy document can include only the following characters:

• Printable ASCII characters from the space character (\u0020) through the end of the ASCII character range.

• Printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF).

• The tab (\u0009), line feed (\u000A), and carriage return (\u000D) special characters

For information about key policies, see Key policies in KMS in the Key Management Service Developer Guide. For help writing and formatting a JSON policy document, see the IAM JSON Policy Reference in the Identity and Access Management User Guide .

pub fn set_policy(self, input: Option<String>) -> Self

The key policy to attach to the KMS key. If you do not specify a key policy, KMS attaches a default key policy to the KMS key. For more information, see Default key policy in the Key Management Service Developer Guide.

If you provide a key policy, it must meet the following criteria:

• If you don't set BypassPolicyLockoutSafetyCheck to True, the key policy must allow the principal that is making the CreateKey request to make a subsequent PutKeyPolicy request on the KMS key. This reduces the risk that the KMS key becomes unmanageable. For more information, refer to the scenario in the Default Key Policy section of the Key Management Service Developer Guide .

• Each statement in the key policy must contain one or more principals. The principals in the key policy must exist and be visible to KMS. When you create a new Amazon Web Services principal (for example, an IAM user or role), you might need to enforce a delay before including the new principal in a key policy because the new principal might not be immediately visible to KMS. For more information, see Changes that I make are not always immediately visible in the Amazon Web Services Identity and Access Management User Guide.

A key policy document can include only the following characters:

• Printable ASCII characters from the space character (\u0020) through the end of the ASCII character range.

• Printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF).

• The tab (\u0009), line feed (\u000A), and carriage return (\u000D) special characters

For information about key policies, see Key policies in KMS in the Key Management Service Developer Guide. For help writing and formatting a JSON policy document, see the IAM JSON Policy Reference in the Identity and Access Management User Guide .

pub fn description(self, input: impl Into<String>) -> Self

A description of the KMS key.

Use a description that helps you decide whether the KMS key is appropriate for a task. The default value is an empty string (no description).

To set or change the description after the key is created, use UpdateKeyDescription.

pub fn set_description(self, input: Option<String>) -> Self

A description of the KMS key.

Use a description that helps you decide whether the KMS key is appropriate for a task. The default value is an empty string (no description).

To set or change the description after the key is created, use UpdateKeyDescription.

pub fn key_usage(self, input: KeyUsageType) -> Self

Determines the cryptographic operations for which you can use the KMS key. The default value is ENCRYPT_DECRYPT. This parameter is optional when you are creating a symmetric encryption KMS key; otherwise, it is required. You can't change the KeyUsage value after the KMS key is created.

Select only one valid value.

• For symmetric encryption KMS keys, omit the parameter or specify ENCRYPT_DECRYPT.

• For HMAC KMS keys (symmetric), specify GENERATE_VERIFY_MAC.

• For asymmetric KMS keys with RSA key material, specify ENCRYPT_DECRYPT or SIGN_VERIFY.

• For asymmetric KMS keys with ECC key material, specify SIGN_VERIFY.

• For asymmetric KMS keys with SM2 key material (China Regions only), specify ENCRYPT_DECRYPT or SIGN_VERIFY.

pub fn set_key_usage(self, input: Option<KeyUsageType>) -> Self

Determines the cryptographic operations for which you can use the KMS key. The default value is ENCRYPT_DECRYPT. This parameter is optional when you are creating a symmetric encryption KMS key; otherwise, it is required. You can't change the KeyUsage value after the KMS key is created.

Select only one valid value.

• For symmetric encryption KMS keys, omit the parameter or specify ENCRYPT_DECRYPT.

• For HMAC KMS keys (symmetric), specify GENERATE_VERIFY_MAC.

• For asymmetric KMS keys with RSA key material, specify ENCRYPT_DECRYPT or SIGN_VERIFY.

• For asymmetric KMS keys with ECC key material, specify SIGN_VERIFY.

• For asymmetric KMS keys with SM2 key material (China Regions only), specify ENCRYPT_DECRYPT or SIGN_VERIFY.

pub fn customer_master_key_spec(self, input: CustomerMasterKeySpec) -> Self

👎Deprecated: This parameter has been deprecated. Instead, use the KeySpec parameter.

Instead, use the KeySpec parameter.

The KeySpec and CustomerMasterKeySpec parameters work the same way. Only the names differ. We recommend that you use KeySpec parameter in your code. However, to avoid breaking changes, KMS will support both parameters.

pub fn set_customer_master_key_spec(
    self,
    input: Option<CustomerMasterKeySpec>
) -> Self

👎Deprecated: This parameter has been deprecated. Instead, use the KeySpec parameter.

Instead, use the KeySpec parameter.

The KeySpec and CustomerMasterKeySpec parameters work the same way. Only the names differ. We recommend that you use KeySpec parameter in your code. However, to avoid breaking changes, KMS will support both parameters.

pub fn key_spec(self, input: KeySpec) -> Self

Specifies the type of KMS key to create. The default value, SYMMETRIC_DEFAULT, creates a KMS key with a 256-bit AES-GCM key that is used for encryption and decryption, except in China Regions, where it creates a 128-bit symmetric key that uses SM4 encryption. For help choosing a key spec for your KMS key, see Choosing a KMS key type in the Key Management Service Developer Guide .

The KeySpec determines whether the KMS key contains a symmetric key or an asymmetric key pair. It also determines the cryptographic algorithms that the KMS key supports. You can't change the KeySpec after the KMS key is created. To further restrict the algorithms that can be used with the KMS key, use a condition key in its key policy or IAM policy. For more information, see kms:EncryptionAlgorithm, kms:MacAlgorithm or kms:Signing Algorithm in the Key Management Service Developer Guide .

Amazon Web Services services that are integrated with KMS use symmetric encryption KMS keys to protect your data. These services do not support asymmetric KMS keys or HMAC KMS keys.

KMS supports the following key specs for KMS keys:

• Symmetric encryption key (default)

  • SYMMETRIC_DEFAULT

• HMAC keys (symmetric)

  • HMAC_224

  • HMAC_256

  • HMAC_384

  • HMAC_512

• Asymmetric RSA key pairs

  • RSA_2048

  • RSA_3072

  • RSA_4096

• Asymmetric NIST-recommended elliptic curve key pairs

  • ECC_NIST_P256 (secp256r1)

  • ECC_NIST_P384 (secp384r1)

  • ECC_NIST_P521 (secp521r1)

• Other asymmetric elliptic curve key pairs

  • ECC_SECG_P256K1 (secp256k1), commonly used for cryptocurrencies.

• SM2 key pairs (China Regions only)

  • SM2

pub fn set_key_spec(self, input: Option<KeySpec>) -> Self

Specifies the type of KMS key to create. The default value, SYMMETRIC_DEFAULT, creates a KMS key with a 256-bit AES-GCM key that is used for encryption and decryption, except in China Regions, where it creates a 128-bit symmetric key that uses SM4 encryption. For help choosing a key spec for your KMS key, see Choosing a KMS key type in the Key Management Service Developer Guide .

The KeySpec determines whether the KMS key contains a symmetric key or an asymmetric key pair. It also determines the cryptographic algorithms that the KMS key supports. You can't change the KeySpec after the KMS key is created. To further restrict the algorithms that can be used with the KMS key, use a condition key in its key policy or IAM policy. For more information, see kms:EncryptionAlgorithm, kms:MacAlgorithm or kms:Signing Algorithm in the Key Management Service Developer Guide .

Amazon Web Services services that are integrated with KMS use symmetric encryption KMS keys to protect your data. These services do not support asymmetric KMS keys or HMAC KMS keys.

KMS supports the following key specs for KMS keys:

• Symmetric encryption key (default)

  • SYMMETRIC_DEFAULT

• HMAC keys (symmetric)

  • HMAC_224

  • HMAC_256

  • HMAC_384

  • HMAC_512

• Asymmetric RSA key pairs

  • RSA_2048

  • RSA_3072

  • RSA_4096

• Asymmetric NIST-recommended elliptic curve key pairs

  • ECC_NIST_P256 (secp256r1)

  • ECC_NIST_P384 (secp384r1)

  • ECC_NIST_P521 (secp521r1)

• Other asymmetric elliptic curve key pairs

  • ECC_SECG_P256K1 (secp256k1), commonly used for cryptocurrencies.

• SM2 key pairs (China Regions only)

  • SM2

pub fn origin(self, input: OriginType) -> Self

The source of the key material for the KMS key. You cannot change the origin after you create the KMS key. The default is AWS_KMS, which means that KMS creates the key material.

To create a KMS key with no key material (for imported key material), set the value to EXTERNAL. For more information about importing key material into KMS, see Importing Key Material in the Key Management Service Developer Guide. This value is valid only for symmetric encryption KMS keys.

To create a KMS key in an KMS custom key store and create its key material in the associated CloudHSM cluster, set this value to AWS_CLOUDHSM. You must also use the CustomKeyStoreId parameter to identify the custom key store. This value is valid only for symmetric encryption KMS keys.

pub fn set_origin(self, input: Option<OriginType>) -> Self

The source of the key material for the KMS key. You cannot change the origin after you create the KMS key. The default is AWS_KMS, which means that KMS creates the key material.

To create a KMS key with no key material (for imported key material), set the value to EXTERNAL. For more information about importing key material into KMS, see Importing Key Material in the Key Management Service Developer Guide. This value is valid only for symmetric encryption KMS keys.

To create a KMS key in an KMS custom key store and create its key material in the associated CloudHSM cluster, set this value to AWS_CLOUDHSM. You must also use the CustomKeyStoreId parameter to identify the custom key store. This value is valid only for symmetric encryption KMS keys.

pub fn custom_key_store_id(self, input: impl Into<String>) -> Self

Creates the KMS key in the specified custom key store and the key material in its associated CloudHSM cluster. To create a KMS key in a custom key store, you must also specify the Origin parameter with a value of AWS_CLOUDHSM. The CloudHSM cluster that is associated with the custom key store must have at least two active HSMs, each in a different Availability Zone in the Region.

This parameter is valid only for symmetric encryption KMS keys in a single Region. You cannot create any other type of KMS key in a custom key store.

To find the ID of a custom key store, use the DescribeCustomKeyStores operation.

The response includes the custom key store ID and the ID of the CloudHSM cluster.

This operation is part of the custom key store feature feature in KMS, which combines the convenience and extensive integration of KMS with the isolation and control of a single-tenant key store.

pub fn set_custom_key_store_id(self, input: Option<String>) -> Self

Creates the KMS key in the specified custom key store and the key material in its associated CloudHSM cluster. To create a KMS key in a custom key store, you must also specify the Origin parameter with a value of AWS_CLOUDHSM. The CloudHSM cluster that is associated with the custom key store must have at least two active HSMs, each in a different Availability Zone in the Region.

This parameter is valid only for symmetric encryption KMS keys in a single Region. You cannot create any other type of KMS key in a custom key store.

To find the ID of a custom key store, use the DescribeCustomKeyStores operation.

The response includes the custom key store ID and the ID of the CloudHSM cluster.

This operation is part of the custom key store feature feature in KMS, which combines the convenience and extensive integration of KMS with the isolation and control of a single-tenant key store.

pub fn bypass_policy_lockout_safety_check(self, input: bool) -> Self

A flag to indicate whether to bypass the key policy lockout safety check.

Setting this value to true increases the risk that the KMS key becomes unmanageable. Do not set this value to true indiscriminately.

For more information, refer to the scenario in the Default Key Policy section in the Key Management Service Developer Guide .

Use this parameter only when you include a policy in the request and you intend to prevent the principal that is making the request from making a subsequent PutKeyPolicy request on the KMS key.

The default value is false.

pub fn set_bypass_policy_lockout_safety_check(self, input: Option<bool>) -> Self

A flag to indicate whether to bypass the key policy lockout safety check.

Setting this value to true increases the risk that the KMS key becomes unmanageable. Do not set this value to true indiscriminately.

For more information, refer to the scenario in the Default Key Policy section in the Key Management Service Developer Guide .

Use this parameter only when you include a policy in the request and you intend to prevent the principal that is making the request from making a subsequent PutKeyPolicy request on the KMS key.

The default value is false.

pub fn tags(self, input: Tag) -> Self

Appends an item to Tags.

To override the contents of this collection use set_tags.

Assigns one or more tags to the KMS key. Use this parameter to tag the KMS key when it is created. To tag an existing KMS key, use the TagResource operation.

Tagging or untagging a KMS key can allow or deny permission to the KMS key. For details, see ABAC in KMS in the Key Management Service Developer Guide.

To use this parameter, you must have kms:TagResource permission in an IAM policy.

Each tag consists of a tag key and a tag value. Both the tag key and the tag value are required, but the tag value can be an empty (null) string. You cannot have more than one tag on a KMS key with the same tag key. If you specify an existing tag key with a different tag value, KMS replaces the current tag value with the specified one.

When you add tags to an Amazon Web Services resource, Amazon Web Services generates a cost allocation report with usage and costs aggregated by tags. Tags can also be used to control access to a KMS key. For details, see Tagging Keys.

pub fn set_tags(self, input: Option<Vec<Tag>>) -> Self

Assigns one or more tags to the KMS key. Use this parameter to tag the KMS key when it is created. To tag an existing KMS key, use the TagResource operation.

Tagging or untagging a KMS key can allow or deny permission to the KMS key. For details, see ABAC in KMS in the Key Management Service Developer Guide.

To use this parameter, you must have kms:TagResource permission in an IAM policy.

Each tag consists of a tag key and a tag value. Both the tag key and the tag value are required, but the tag value can be an empty (null) string. You cannot have more than one tag on a KMS key with the same tag key. If you specify an existing tag key with a different tag value, KMS replaces the current tag value with the specified one.

When you add tags to an Amazon Web Services resource, Amazon Web Services generates a cost allocation report with usage and costs aggregated by tags. Tags can also be used to control access to a KMS key. For details, see Tagging Keys.

pub fn multi_region(self, input: bool) -> Self

Creates a multi-Region primary key that you can replicate into other Amazon Web Services Regions. You cannot change this value after you create the KMS key.

For a multi-Region key, set this parameter to True. For a single-Region KMS key, omit this parameter or set it to False. The default value is False.

This operation supports multi-Region keys, an KMS feature that lets you create multiple interoperable KMS keys in different Amazon Web Services Regions. Because these KMS keys have the same key ID, key material, and other metadata, you can use them interchangeably to encrypt data in one Amazon Web Services Region and decrypt it in a different Amazon Web Services Region without re-encrypting the data or making a cross-Region call. For more information about multi-Region keys, see Multi-Region keys in KMS in the Key Management Service Developer Guide.

This value creates a primary key, not a replica. To create a replica key, use the ReplicateKey operation.

You can create a multi-Region version of a symmetric encryption KMS key, an HMAC KMS key, an asymmetric KMS key, or a KMS key with imported key material. However, you cannot create a multi-Region key in a custom key store.

pub fn set_multi_region(self, input: Option<bool>) -> Self

Creates a multi-Region primary key that you can replicate into other Amazon Web Services Regions. You cannot change this value after you create the KMS key.

For a multi-Region key, set this parameter to True. For a single-Region KMS key, omit this parameter or set it to False. The default value is False.

This operation supports multi-Region keys, an KMS feature that lets you create multiple interoperable KMS keys in different Amazon Web Services Regions. Because these KMS keys have the same key ID, key material, and other metadata, you can use them interchangeably to encrypt data in one Amazon Web Services Region and decrypt it in a different Amazon Web Services Region without re-encrypting the data or making a cross-Region call. For more information about multi-Region keys, see Multi-Region keys in KMS in the Key Management Service Developer Guide.

This value creates a primary key, not a replica. To create a replica key, use the ReplicateKey operation.

You can create a multi-Region version of a symmetric encryption KMS key, an HMAC KMS key, an asymmetric KMS key, or a KMS key with imported key material. However, you cannot create a multi-Region key in a custom key store.

Trait Implementations

impl Clone for CreateKey

fn clone(&self) -> CreateKey

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CreateKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.