Generate a symmetric Generic Secret key with CloudHSM CLI - AWS CloudHSM
User typeRequirementsSyntaxExamplesArgumentsRelated topics

Generate a symmetric Generic Secret key with CloudHSM CLI

Use the key generate-asymmetric-pair command in CloudHSM CLI to generate a symmetric Generic Secret key in your AWS CloudHSM cluster.

User type

The following types of users can run this command.

  • Crypto users (CUs)

Requirements

To run this command, you must be logged in as a CU.

Syntax

aws-cloudhsm > key help generate-symmetric generic-secret
Generate a generic secret key

Usage: key generate-symmetric generic-secret [OPTIONS] --label <LABEL> --key-length-bytes <KEY_LENGTH_BYTES>

Options:
      --cluster-id <CLUSTER_ID>
          Unique Id to choose which of the clusters in the config file to run the operation against. If not provided, will fall back to the value provided when interactive mode was started, or error
      --label <LABEL>
          Label for the key
      --session
          Creates a session key that exists only in the current session. The key cannot be recovered after the session ends
      --key-length-bytes <KEY_LENGTH_BYTES>
          Key length in bytes
      --attributes [<KEY_ATTRIBUTES>...]
          Space separated list of key attributes to set for the generated generic secret key in the form of KEY_ATTRIBUTE_NAME=KEY_ATTRIBUTE_VALUE
      --share-crypto-users [<SHARE_CRYPTO_USERS>...]
          Space separated list of Crypto User usernames to share the generic secret key with
      --manage-key-quorum-value <MANAGE_KEY_QUORUM_VALUE>
          The quorum value for key management operations
      --use-key-quorum-value <USE_KEY_QUORUM_VALUE>
          The quorum value for key usage operations
  -h, --help
          Print help

Examples

These examples show how to use the key generate-symmetric generic-secret command to create a generic secret key.

Example: Create a generic secret key
aws-cloudhsm > key generate-symmetric generic-secret \
--label example-generic-secret \
--key-length-bytes 256
{
  "error_code": 0,
  "data": {
    "key": {
      "key-reference": "0x00000000002e08fd",
      "key-info": {
        "key-owners": [
          {
            "username": "cu1",
            "key-coverage": "full"
          }
        ],
        "shared-users": [],
        "key-quorum-values": {
          "manage-key-quorum-value": 0,
          "use-key-quorum-value": 0
        },
        "cluster-coverage": "full"
      },
      "attributes": {
        "key-type": "generic-secret",
        "label": "example-generic-secret",
        "id": "",
        "class": "secret-key",
        "encrypt": false,
        "decrypt": false,
        "token": true,
        "always-sensitive": true,
        "derive": false,
        "destroyable": true,
        "extractable": true,
        "local": true,
        "modifiable": true,
        "never-extractable": false,
        "private": true,
        "sensitive": true,
        "sign": true,
        "trusted": false,
        "unwrap": false,
        "verify": true,
        "wrap": false,
        "wrap-with-trusted": false,
        "key-length-bytes": 256
      }
    }
  }
}
Example: Create a generic secret key with optional attributes
aws-cloudhsm > key generate-symmetric generic-secret \
--label example-generic-secret \
--key-length-bytes 256 \
--attributes encrypt=true
{
  "error_code": 0,
  "data": {
    "key": {
      "key-reference": "0x00000000002e08fd",
      "key-info": {
        "key-owners": [
          {
            "username": "cu1",
            "key-coverage": "full"
          }
        ],
        "shared-users": [],
        "key-quorum-values": {
          "manage-key-quorum-value": 0,
          "use-key-quorum-value": 0
        },
        "cluster-coverage": "full"
      },
      "attributes": {
        "key-type": "generic-secret",
        "label": "example-generic-secret",
        "id": "",
        "class": "secret-key",
        "encrypt": true,
        "decrypt": false,
        "token": true,
        "always-sensitive": true,
        "derive": false,
        "destroyable": true,
        "extractable": true,
        "local": true,
        "modifiable": true,
        "never-extractable": false,
        "private": true,
        "sensitive": true,
        "sign": true,
        "trusted": false,
        "unwrap": false,
        "verify": true,
        "wrap": false,
        "wrap-with-trusted": false,
        "key-length-bytes": 256
      }
    }
  }
}
Example: Create a generic secret key with quorum values

When generating a key with quorum controls, the key must be associated with a minimum number of users equal to the largest key quorum value. Associated users include the key owner and Crypto Users with whom the key is shared with. To determine the number of minimum users to share the key with, get the largest quorum value between the key usage quorum value and the key management quorum value and subtract 1 to account for the key owner, who is by default associated with the key. To share the key with more users, use the Share a key using CloudHSM CLI command.

aws-cloudhsm > key generate-symmetric generic-secret \
--label example-generic-secret \
--key-length-bytes 256 \
--attributes encrypt=true
--share-crypto-users cu2 cu3 cu4 \
--manage-key-quorum-value 4 \
--use-key-quorum-value 2
{
  "error_code": 0,
  "data": {
    "key": {
      "key-reference": "0x00000000002e08fd",
      "key-info": {
        "key-owners": [
          {
            "username": "cu1",
            "key-coverage": "full"
          }
        ],
        "shared-users": [
          {
            "username": "cu2",
            "key-coverage": "full"
          },
          {
            "username": "cu3",
            "key-coverage": "full"
          },
          {
            "username": "cu4",
            "key-coverage": "full"
          },
        ],
        "key-quorum-values": {
          "manage-key-quorum-value": 4,
          "use-key-quorum-value": 2
        },
        "cluster-coverage": "full"
      },
      "attributes": {
        "key-type": "generic-secret",
        "label": "example-generic-secret",
        "id": "",
        "class": "secret-key",
        "encrypt": true,
        "decrypt": false,
        "token": true,
        "always-sensitive": true,
        "derive": false,
        "destroyable": true,
        "extractable": true,
        "local": true,
        "modifiable": true,
        "never-extractable": false,
        "private": true,
        "sensitive": true,
        "sign": true,
        "trusted": false,
        "unwrap": false,
        "verify": true,
        "wrap": false,
        "wrap-with-trusted": false,
        "key-length-bytes": 256
      }
    }
  }
}

Arguments

<CLUSTER_ID>

The ID of the cluster to run this operation on.

Required: If multiple clusters have been configured.

<KEY_ATTRIBUTES>

Specifies a space separated list of key attributes to set for the generated AES key in the form of KEY_ATTRIBUTE_NAME=KEY_ATTRIBUTE_VALUE (for example, sign=true).

For a list of supported key attributes, see Key attributes for CloudHSM CLI.

Required: No

<KEY-LENGTH-BYTES>

Specifies the key length in bytes.

Valid values:

  • 1 to 800

Required: Yes

<LABEL>

Specifies a user defined label for the generic secret key. The maximum size allowable for label is 127 characters for Client SDK 5.11 and after. Client SDK 5.10 and before has a limit of 126 characters.

Required: Yes

<SESSION>

Creates a key that exists only in the current session. The key cannot be recovered after the session ends.

Use this parameter when you need a key only briefly, such as a wrapping key that encrypts, and then quickly decrypts, another key. Do not use a session key to encrypt data that you might need to decrypt after the session ends.

By default, keys that are generated are persistent (token) keys. Passing in <SESSION> changes this, ensuring a key generated with this argument is a session (ephemeral) key.

Required: No

<SHARE_CRYPTO_USERS>

Space separated list of Crypto User usernames to share the generic secret key with

Required: No

<MANAGE_KEY_QUORUM_VALUE>

The quorum value for key management operations. This value must be less than or equal to the number of users that the key is associated with. This includes users with whom the key is shared with and the key owner. Max value of 8.

Required: No

<USE_KEY_QUORUM_VALUE>

The quorum value for key usage operations. This value must be less than or equal to the number of users that the key is associated with. This includes users with whom the key is shared with and the key owner. Max value of 8.

Required: No

Related topics