Dekripsi - AWS Key Management Service
Dekripsi dengan kunci enkripsi simetris standar Dekripsi kegagalan dengan kunci enkripsi simetris standarDekripsi dengan KMS kunci dalam AWS CloudHSM toko kunciDekripsi dengan KMS kunci di toko kunci eksternalDekripsi kegagalan dengan KMS kunci di penyimpanan kunci eksternal

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Dekripsi

Contoh-contoh ini menunjukkan AWS CloudTrail entri log untuk operasi Dekripsi.

Entri CloudTrail log untuk Decrypt operasi selalu menyertakan encryptionAlgorithm dalam requestParameters bahkan jika algoritma enkripsi tidak ditentukan dalam permintaan. Ciphertext dalam permintaan dan plaintext dalam respons dihilangkan.

Dekripsi dengan kunci enkripsi simetris standar

Berikut ini adalah contoh entri CloudTrail log untuk Decrypt operasi dengan kunci enkripsi simetris standar. 

{
    "eventVersion": "1.05",
    "userIdentity": {
        "type": "IAMUser",
        "principalId": "EX_PRINCIPAL_ID",
        "arn": "arn:aws:iam::111122223333:user/Alice",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE_KEY_ID",
        "userName": "Alice"
    },
    "eventTime": "2020-07-27T22:58:24Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "Decrypt",
    "awsRegion": "us-west-2",
    "sourceIPAddress": "192.0.2.0",
    "userAgent": "AWS Internal",
    "requestParameters": {
        "encryptionAlgorithm": "SYMMETRIC_DEFAULT",
        "keyId": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
        "encryptionContext": {
            "Department": "Engineering",
            "Project": "Alpha"
        }        
    },
    "responseElements": null,
    "requestID": "12345126-30d5-4b28-98b9-9153da559963",
    "eventID": "abcde202-ba1a-467c-b4ba-f729d45ae521",
    "readOnly": true,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
        }
    ],
    "eventType": "AwsApiCall",
    "recipientAccountId": "111122223333"
}

Dekripsi kegagalan dengan kunci enkripsi simetris standar

Contoh entri CloudTrail log berikut mencatat Decrypt operasi yang gagal dengan KMS kunci enkripsi simetris standar. Exception (errorCode) dan error message (errorMessage) disertakan membantu Anda mengatasi kesalahan.

Dalam hal ini, KMS kunci enkripsi simetris yang ditentukan dalam Decrypt permintaan bukanlah KMS kunci enkripsi simetris yang digunakan untuk mengenkripsi data.

{
    "eventVersion": "1.08",
    "userIdentity": {
        "type": "IAMUser",
        "principalId": "EX_PRINCIPAL_ID",
        "arn": "arn:aws:iam::111122223333:user/Alice",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE_KEY_ID",
        "userName": "Alice"
    },
    "eventTime": "2022-11-24T18:57:43Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "Decrypt",
    "awsRegion": "us-west-2",
    "sourceIPAddress": "192.0.2.0",
    "userAgent": "AWS Internal",
    "errorCode": "IncorrectKeyException"
    "errorMessage": "The key ID in the request does not identify a CMK that can perform this operation.",
    "requestParameters": {
        "encryptionAlgorithm": "SYMMETRIC_DEFAULT",
        "keyId": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
        "encryptionContext": {
            "Department": "Engineering",
            "Project": "Alpha"
        }        
    },
    "responseElements": null,
    "requestID": "22345126-30d5-4b28-98b9-9153da559963",
    "eventID": "abcde202-ba1a-467c-b4ba-f729d45ae521",
    "readOnly": true,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
        }
    ],
    "eventType": "AwsApiCall",
    "recipientAccountId": "111122223333"
}

Dekripsi dengan KMS kunci dalam AWS CloudHSM toko kunci

Contoh entri CloudTrail log berikut mencatat Decrypt operasi dengan KMS kunci dalam AWS CloudHSM toko kunci. Semua entri log untuk operasi kriptografi dengan KMS kunci di toko kunci khusus menyertakan additionalEventData bidang dengan dancustomKeyStoreId. backingKeyId Nilai yang dikembalikan di backingKeyId bidang adalah id atribut HSM kunci Cloud. additionalEventDataTidak ditentukan dalam permintaan.

{
    "eventVersion": "1.08",
    "userIdentity": {
        "type": "IAMUser",
        "principalId": "EX_PRINCIPAL_ID",
        "arn": "arn:aws:iam::111122223333:user/Alice",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE_KEY_ID",
        "userName": "Alice"
    },
    "eventTime": "2021-10-26T23:41:27Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "Decrypt",
    "awsRegion": "us-west-2",
    "sourceIPAddress": "192.0.2.0",
    "requestParameters": {
        "encryptionAlgorithm": "SYMMETRIC_DEFAULT",
        "keyId": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
        "encryptionContext": {
            "Department": "Development",
            "Purpose": "Test"
        }
    },
    "responseElements": null,
    "additionalEventData": {
        "customKeyStoreId": "cks-1234567890abcdef0"
    },
    "requestID": "e1b881f8-2048-41f8-b6cc-382b7857ec61",
    "eventID": "a79603d5-4cde-46fc-819c-a7cf547b9df4",
    "readOnly": true,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
        }
    ],
    "eventType": "AwsApiCall",
    "managementEvent": true,
    "recipientAccountId": "111122223333",
    "eventCategory": "Management"    
}

Dekripsi dengan KMS kunci di toko kunci eksternal

Contoh entri CloudTrail log berikut mencatat Decrypt operasi dengan KMS kunci di toko kunci eksternal. Selain itucustomKeyStoreId, additionalEventData bidang termasuk ID kunci eksternal (XksKeyId). additionalEventDataTidak ditentukan dalam permintaan.

{
    "eventVersion": "1.08",
    "userIdentity": {
        "type": "IAMUser",
        "principalId": "EX_PRINCIPAL_ID",
        "arn": "arn:aws:iam::111122223333:user/Alice",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE_KEY_ID",
        "userName": "Alice"
    },
    "eventTime": "2022-11-24T00:26:58Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "Decrypt",
    "awsRegion": "us-west-2",
    "sourceIPAddress": "AWS Internal",
    "requestParameters": {
        "encryptionAlgorithm": "SYMMETRIC_DEFAULT",
        "keyId": "arn:aws:kms:us-west-2:111122223333:key/0987dcba-09fe-87dc-65ba-ab0987654321",
        "encryptionContext": {
            "Department": "Engineering",
            "Purpose": "Test"
        }
    },
    "responseElements": null,
    "additionalEventData": {
        "customKeyStoreId": "cks-9876543210fedcba9",
        "xksKeyId": "abc01234567890fe"
    },
    "requestID": "f1b881f8-2048-41f8-b6cc-382b7857ec61",
    "eventID": "b79603d5-4cde-46fc-819c-a7cf547b9df4",
    "readOnly": true,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/0987dcba-09fe-87dc-65ba-ab0987654321"
        }
    ],
    "eventType": "AwsApiCall",
    "managementEvent": true,
    "recipientAccountId": "111122223333",
    "eventCategory": "Management"
}

Dekripsi kegagalan dengan KMS kunci di penyimpanan kunci eksternal

Contoh entri CloudTrail log berikut mencatat permintaan gagal untuk Decrypt operasi dengan KMS kunci di penyimpanan kunci eksternal. CloudWatch mencatat permintaan yang gagal, selain permintaan yang berhasil. Saat merekam kegagalan, entri CloudTrail log menyertakan pengecualian (errorCode) dan pesan kesalahan yang menyertainya (errorMessage).

Jika permintaan gagal mencapai proxy penyimpanan kunci eksternal Anda, seperti dalam contoh ini, Anda dapat menggunakan requestId nilai untuk mengaitkan permintaan yang gagal dengan permintaan yang sesuai, log proxy penyimpanan kunci eksternal Anda, jika proxy Anda menyediakannya.

Untuk bantuan terkait Decrypt permintaan di toko kunci eksternal, lihatKesalahan dekripsi.

{
    "eventVersion": "1.08",
    "userIdentity": {
        "type": "IAMUser",
        "principalId": "EX_PRINCIPAL_ID",
        "arn": "arn:aws:iam::111122223333:user/Alice",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE_KEY_ID",
        "userName": "Alice"
    },
    "eventTime": "2022-11-24T00:26:58Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "Decrypt",
    "awsRegion": "us-west-2",
    "sourceIPAddress": "AWS Internal",
    "userAgent": "AWS Internal",
    "errorCode": "KMSInvalidStateException",
    "errorMessage": "The external key store proxy rejected the request because the specified ciphertext or additional authenticated data is corrupted, missing, or otherwise invalid.",
    "requestParameters": {
        "encryptionAlgorithm": "SYMMETRIC_DEFAULT",
        "keyId": "arn:aws:kms:us-west-2:111122223333:key/0987dcba-09fe-87dc-65ba-ab0987654321",
        "encryptionContext": {
            "Department": "Engineering",
            "Purpose": "Test"
        }
    },
    "responseElements": null,
    "additionalEventData": {
        "customKeyStoreId": "cks-9876543210fedcba9",
        "xksKeyId": "abc01234567890fe"
    },
    "requestID": "f1b881f8-2048-41f8-b6cc-382b7857ec61",
    "eventID": "b79603d5-4cde-46fc-819c-a7cf547b9df4",
    "readOnly": true,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/0987dcba-09fe-87dc-65ba-ab0987654321"
        }
    ],
    "eventType": "AwsApiCall",
    "managementEvent": true,
    "recipientAccountId": "111122223333",
    "eventCategory": "Management"
}