import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { GenerateMacRequest, GenerateMacResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link GenerateMacCommand}.
 */
export interface GenerateMacCommandInput extends GenerateMacRequest {
}
/**
 * @public
 *
 * The output of {@link GenerateMacCommand}.
 */
export interface GenerateMacCommandOutput extends GenerateMacResponse, __MetadataBearer {
}
declare const GenerateMacCommand_base: {
    new (input: GenerateMacCommandInput): import("@smithy/core/client").CommandImpl<GenerateMacCommandInput, GenerateMacCommandOutput, import("..").KMSClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: GenerateMacCommandInput): import("@smithy/core/client").CommandImpl<GenerateMacCommandInput, GenerateMacCommandOutput, import("..").KMSClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Generates a hash-based message authentication code (HMAC) for a message using an HMAC KMS
 *       key and a MAC algorithm that the key supports. HMAC KMS keys and the HMAC algorithms that
 *       KMS uses conform to industry standards defined in <a href="https://datatracker.ietf.org/doc/html/rfc2104">RFC 2104</a>.</p>
 *          <p>You can use value that GenerateMac returns in the <a>VerifyMac</a> operation to
 *       demonstrate that the original message has not changed. Also, because a secret key is used to
 *       create the hash, you can verify that the party that generated the hash has the required secret
 *       key. You can also use the raw result to implement HMAC-based algorithms such as key derivation
 *       functions. This operation is part of KMS support for HMAC KMS keys. For
 *       details, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/hmac.html">HMAC keys in
 *         KMS</a> in the <i>
 *                <i>Key Management Service Developer Guide</i>
 *             </i>.</p>
 *          <note>
 *             <p>Best practices recommend that you limit the time during which any signing mechanism,
 *         including an HMAC, is effective. This deters an attack where the actor uses a signed message
 *         to establish validity repeatedly or long after the message is superseded. HMAC tags do not
 *         include a timestamp, but you can include a timestamp in the token or message to help you
 *         detect when its time to refresh the HMAC. </p>
 *          </note>
 *          <p>The KMS key that you use for this operation must be in a compatible key state. For
 * details, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html">Key states of KMS keys</a> in the <i>Key Management Service Developer Guide</i>.</p>
 *          <p>
 *             <b>Cross-account use</b>: 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 <code>KeyId</code> parameter. </p>
 *          <p>
 *             <b>Required permissions</b>: <a href="https://docs.aws.amazon.com/kms/latest/developerguide/kms-api-permissions-reference.html">kms:GenerateMac</a> (key policy)</p>
 *          <p>
 *             <b>Related operations</b>: <a>VerifyMac</a>
 *          </p>
 *          <p>
 *             <b>Eventual consistency</b>: The KMS API follows an eventual consistency model.
 *   For more information, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/accessing-kms.html#programming-eventual-consistency">KMS eventual consistency</a>.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { KMSClient, GenerateMacCommand } from "@aws-sdk/client-kms"; // ES Modules import
 * // const { KMSClient, GenerateMacCommand } = require("@aws-sdk/client-kms"); // CommonJS import
 * // import type { KMSClientConfig } from "@aws-sdk/client-kms";
 * const config = {}; // type is KMSClientConfig
 * const client = new KMSClient(config);
 * const input = { // GenerateMacRequest
 *   Message: new Uint8Array(), // e.g. Buffer.from("") or new TextEncoder().encode("")   // required
 *   KeyId: "STRING_VALUE", // required
 *   MacAlgorithm: "HMAC_SHA_224" || "HMAC_SHA_256" || "HMAC_SHA_384" || "HMAC_SHA_512", // required
 *   GrantTokens: [ // GrantTokenList
 *     "STRING_VALUE",
 *   ],
 *   DryRun: true || false,
 * };
 * const command = new GenerateMacCommand(input);
 * const response = await client.send(command);
 * // { // GenerateMacResponse
 * //   Mac: new Uint8Array(),
 * //   MacAlgorithm: "HMAC_SHA_224" || "HMAC_SHA_256" || "HMAC_SHA_384" || "HMAC_SHA_512",
 * //   KeyId: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param GenerateMacCommandInput - {@link GenerateMacCommandInput}
 * @returns {@link GenerateMacCommandOutput}
 * @see {@link GenerateMacCommandInput} for command's `input` shape.
 * @see {@link GenerateMacCommandOutput} for command's `response` shape.
 * @see {@link KMSClientResolvedConfig | config} for KMSClient's `config` shape.
 *
 * @throws {@link DisabledException} (client fault)
 *  <p>The request was rejected because the specified KMS key is not enabled.</p>
 *
 * @throws {@link DryRunOperationException} (client fault)
 *  <p> The request was rejected because the DryRun parameter was specified. </p>
 *
 * @throws {@link InvalidGrantTokenException} (client fault)
 *  <p>The request was rejected because the specified grant token is not valid.</p>
 *
 * @throws {@link InvalidKeyUsageException} (client fault)
 *  <p>The request was rejected for one of the following reasons: </p>
 *          <ul>
 *             <li>
 *                <p>The <code>KeyUsage</code> value of the KMS key is incompatible with the API
 *           operation.</p>
 *             </li>
 *             <li>
 *                <p>The encryption algorithm or signing algorithm specified for the operation is
 *           incompatible with the type of key material in the KMS key <code>(KeySpec</code>).</p>
 *             </li>
 *          </ul>
 *          <p>For encrypting, decrypting, re-encrypting, and generating data keys, the
 *         <code>KeyUsage</code> must be <code>ENCRYPT_DECRYPT</code>. For signing and verifying
 *       messages, the <code>KeyUsage</code> must be <code>SIGN_VERIFY</code>. For generating and
 *       verifying message authentication codes (MACs), the <code>KeyUsage</code> must be
 *         <code>GENERATE_VERIFY_MAC</code>. For deriving key agreement secrets, the
 *         <code>KeyUsage</code> must be <code>KEY_AGREEMENT</code>. For encapsulating and decapsulating
 *       shared secrets, the <code>KeyUsage</code> must be <code>ENCAPSULATE_DECAPSULATE</code>. To find
 *       the <code>KeyUsage</code> of a KMS key, use the <a>DescribeKey</a> operation.</p>
 *          <p>To find the encryption or signing algorithms supported for a particular KMS key, use the
 *         <a>DescribeKey</a> operation.</p>
 *
 * @throws {@link KeyUnavailableException} (server fault)
 *  <p>The request was rejected because the specified KMS key was not available. You can retry
 *       the request.</p>
 *
 * @throws {@link KMSInternalException} (server fault)
 *  <p>The request was rejected because an internal exception occurred. The request can be
 *       retried.</p>
 *
 * @throws {@link KMSInvalidStateException} (client fault)
 *  <p>The request was rejected because the state of the specified resource is not valid for this
 *       request.</p>
 *          <p>This exceptions means one of the following:</p>
 *          <ul>
 *             <li>
 *                <p>The key state of the KMS key is not compatible with the operation. </p>
 *                <p>To find the key state, use the <a>DescribeKey</a> operation. For more
 *           information about which key states are compatible with each KMS operation, see
 *           <a href="https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html">Key states of KMS keys</a> in the <i>
 *                      <i>Key Management Service Developer Guide</i>
 *                   </i>.</p>
 *             </li>
 *             <li>
 *                <p>For cryptographic operations on KMS keys in custom key stores, this exception
 *           represents a general failure with many possible causes. To identify the cause, see the
 *           error message that accompanies the exception.</p>
 *             </li>
 *          </ul>
 *
 * @throws {@link NotFoundException} (client fault)
 *  <p>The request was rejected because the specified entity or resource could not be
 *       found.</p>
 *
 * @throws {@link KMSServiceException}
 * <p>Base exception class for all service exceptions from KMS service.</p>
 *
 *
 * @example To generate an HMAC for a message
 * ```javascript
 * // This example generates an HMAC for a message, an HMAC KMS key, and a MAC algorithm. The algorithm must be supported by the specified HMAC KMS key.
 * const input = {
 *   KeyId: "1234abcd-12ab-34cd-56ef-1234567890ab",
 *   MacAlgorithm: "HMAC_SHA_384",
 *   Message: "Hello World"
 * };
 * const command = new GenerateMacCommand(input);
 * const response = await client.send(command);
 * /* response is
 * {
 *   KeyId: "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
 *   Mac: "<HMAC_TAG>",
 *   MacAlgorithm: "HMAC_SHA_384"
 * }
 * *\/
 * ```
 *
 * @public
 */
export declare class GenerateMacCommand extends GenerateMacCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: GenerateMacRequest;
            output: GenerateMacResponse;
        };
        sdk: {
            input: GenerateMacCommandInput;
            output: GenerateMacCommandOutput;
        };
    };
}