Gunakan DescribeKey dengan AWS SDK atau CLI

    using System;
    using System.Threading.Tasks;
    using Amazon.KeyManagementService;
    using Amazon.KeyManagementService.Model;

    /// <summary>
    /// Retrieve information about an AWS Key Management Service (AWS KMS) key.
    /// You can supply either the key Id or the key Amazon Resource Name (ARN)
    /// to the DescribeKeyRequest KeyId property.
    /// </summary>
    public class DescribeKey
    {
        public static async Task Main()
        {
            var keyId = "7c9eccc2-38cb-4c4f-9db3-766ee8dd3ad4";
            var request = new DescribeKeyRequest
            {
                KeyId = keyId,
            };

            var client = new AmazonKeyManagementServiceClient();

            var response = await client.DescribeKeyAsync(request);
            var metadata = response.KeyMetadata;

            Console.WriteLine($"{metadata.KeyId} created on: {metadata.CreationDate}");
            Console.WriteLine($"State: {metadata.KeyState}");
            Console.WriteLine($"{metadata.Description}");
        }
    }

Contoh 1: Untuk menemukan informasi rinci tentang KMS kunci

describe-keyContoh berikut mendapatkan informasi rinci tentang kunci AWS terkelola untuk Amazon S3 di akun contoh dan Wilayah. Anda dapat menggunakan perintah ini untuk menemukan detail tentang kunci AWS terkelola dan kunci yang dikelola pelanggan.

Untuk menentukan KMS kunci, gunakan key-id parameter. Contoh ini menggunakan nilai nama alias, tetapi Anda dapat menggunakan ID kunci, kunci, nama aliasARN, atau alias ARN dalam perintah ini.

aws kms describe-key \
    --key-id alias/aws/s3

Output:

{
    "KeyMetadata": {
        "AWSAccountId": "846764612917",
        "KeyId": "b8a9477d-836c-491f-857e-07937918959b",
        "Arn": "arn:aws:kms:us-west-2:846764612917:key/b8a9477d-836c-491f-857e-07937918959b",
        "CreationDate": 2017-06-30T21:44:32.140000+00:00,
        "Enabled": true,
        "Description": "Default KMS key that protects my S3 objects when no other key is defined",
        "KeyUsage": "ENCRYPT_DECRYPT",
        "KeyState": "Enabled",
        "Origin": "AWS_KMS",
        "KeyManager": "AWS",
        "CustomerMasterKeySpec": "SYMMETRIC_DEFAULT",
        "EncryptionAlgorithms": [
            "SYMMETRIC_DEFAULT"
        ]
    }
}

Untuk informasi selengkapnya, lihat Melihat AWS kunci di Panduan Pengembang Layanan Manajemen Kunci.

Contoh 2: Untuk mendapatkan detail tentang kunci RSA asimetris KMS

describe-keyContoh berikut mendapatkan informasi rinci tentang RSA KMS kunci asimetris yang digunakan untuk penandatanganan dan verifikasi.

aws kms describe-key \
    --key-id 1234abcd-12ab-34cd-56ef-1234567890ab

Output:

{
    "KeyMetadata": {
        "AWSAccountId": "111122223333",
        "KeyId": "1234abcd-12ab-34cd-56ef-1234567890ab",
        "Arn": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
        "CreationDate": "2019-12-02T19:47:14.861000+00:00",
        "CustomerMasterKeySpec": "RSA_2048",
        "Enabled": false,
        "Description": "",
        "KeyState": "Disabled",
        "Origin": "AWS_KMS",
        "MultiRegion": false,
        "KeyManager": "CUSTOMER",
        "KeySpec": "RSA_2048",
        "KeyUsage": "SIGN_VERIFY",
        "SigningAlgorithms": [
            "RSASSA_PKCS1_V1_5_SHA_256",
            "RSASSA_PKCS1_V1_5_SHA_384",
            "RSASSA_PKCS1_V1_5_SHA_512",
            "RSASSA_PSS_SHA_256",
            "RSASSA_PSS_SHA_384",
            "RSASSA_PSS_SHA_512"
        ]
    }
}

Contoh 3: Untuk mendapatkan detail tentang kunci replika Multi-wilayah

describe-keyContoh berikut mendapatkan metadata untuk kunci replika Multi-wilayah. Kunci Multi-region ini adalah kunci enkripsi simetris. Output dari describe-key perintah untuk setiap kunci Multi-region mengembalikan informasi tentang kunci utama dan semua replika nya.

aws kms describe-key \
    --key-id arn:aws:kms:ap-northeast-1:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab

Output:

{
    "KeyMetadata": {
        "MultiRegion": true,
        "AWSAccountId": "111122223333",
        "Arn": "arn:aws:kms:ap-northeast-1:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab",
        "CreationDate": "2021-06-28T21:09:16.114000+00:00",
        "Description": "",
        "Enabled": true,
        "KeyId": "mrk-1234abcd12ab34cd56ef1234567890ab",
        "KeyManager": "CUSTOMER",
        "KeyState": "Enabled",
        "KeyUsage": "ENCRYPT_DECRYPT",
        "Origin": "AWS_KMS",
        "CustomerMasterKeySpec": "SYMMETRIC_DEFAULT",
        "EncryptionAlgorithms": [
            "SYMMETRIC_DEFAULT"
        ],
        "MultiRegionConfiguration": {
            "MultiRegionKeyType": "PRIMARY",
            "PrimaryKey": {
                "Arn": "arn:aws:kms:us-west-2:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab",
                "Region": "us-west-2"
            },
            "ReplicaKeys": [
                {
                    "Arn": "arn:aws:kms:eu-west-1:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab",
                    "Region": "eu-west-1"
                },
                {
                    "Arn": "arn:aws:kms:ap-northeast-1:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab",
                    "Region": "ap-northeast-1"
                },
                {
                    "Arn": "arn:aws:kms:sa-east-1:111122223333:key/mrk-1234abcd12ab34cd56ef1234567890ab",
                    "Region": "sa-east-1"
                }
            ]
        }
    }
}

Contoh 4: Untuk mendapatkan detail tentang HMAC KMS kunci

describe-keyContoh berikut mendapatkan informasi rinci tentang HMAC KMS kunci.

aws kms describe-key \
    --key-id 1234abcd-12ab-34cd-56ef-1234567890ab

Output:

{
    "KeyMetadata": {
        "AWSAccountId": "123456789012",
        "KeyId": "1234abcd-12ab-34cd-56ef-1234567890ab",
        "Arn": "arn:aws:kms:us-west-2:123456789012:key/1234abcd-12ab-34cd-56ef-1234567890ab",
        "CreationDate": "2022-04-03T22:23:10.194000+00:00",
        "Enabled": true,
        "Description": "Test key",
        "KeyUsage": "GENERATE_VERIFY_MAC",
        "KeyState": "Enabled",
        "Origin": "AWS_KMS",
        "KeyManager": "CUSTOMER",
        "CustomerMasterKeySpec": "HMAC_256",
        "MacAlgorithms": [
            "HMAC_SHA_256"
        ],
        "MultiRegion": false
    }
}

    public static boolean isKeyEnabled(KmsClient kmsClient, String keyId) {
        try {
            DescribeKeyRequest keyRequest = DescribeKeyRequest.builder()
                .keyId(keyId)
                .build();

            DescribeKeyResponse response = kmsClient.describeKey(keyRequest);
            KeyState keyState = response.keyMetadata().keyState();
            if (keyState == KeyState.ENABLED) {
                System.out.println("The key is enabled.");
                return true;
            } else {
                System.out.println("The key is not enabled. Key state: " + keyState);
            }

        } catch (KmsException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }
        return false;
    }

suspend fun describeSpecifcKey(keyIdVal: String?) {
    val request =
        DescribeKeyRequest {
            keyId = keyIdVal
        }

    KmsClient { region = "us-west-2" }.use { kmsClient ->
        val response = kmsClient.describeKey(request)
        println("The key description is ${response.keyMetadata?.description}")
        println("The key ARN is ${response.keyMetadata?.arn}")
    }
}

class KeyManager:
    def __init__(self, kms_client):
        self.kms_client = kms_client
        self.created_keys = []


    def describe_key(self):
        """
        Describes a key.
        """
        key_id = input("Enter a key ID or ARN here to get information about the key: ")
        if key_id:
            try:
                key = self.kms_client.describe_key(KeyId=key_id)["KeyMetadata"]
            except ClientError as err:
                logging.error(
                    "Couldn't get key '%s'. Here's why: %s",
                    key_id,
                    err.response["Error"]["Message"],
                )
            else:
                print(f"Got key {key_id}:")
                pprint(key)
        return key_id