Mengekspor kunci data yang dienkripsi oleh CMK. Kunci data dienkripsi ulang oleh kunci publik yang Anda tentukan untuk transmisi yang aman.
Deskripsi operasi
Precautions
-
For information about the access policy required for a RAM user or RAM role to use this operation, see Resource Access Management.
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This operation is accessible through a shared gateway or a dedicated gateway. For more information, see Alibaba Cloud SDK.
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Shared gateway: You can access KMS using the public endpoint or a VPC endpoint. To use the public endpoint, you must first enable it. For more information, see Access the key in a KMS instance over the Internet.
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Dedicated gateway: You can access KMS using the private endpoint of the KMS instance:
<YOUR_KMS_INSTANCE_ID>.cryptoservice.kms.aliyuncs.com.
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Description
After you call the GenerateDataKeyWithoutPlaintext operation to obtain a data key encrypted by a master key (CMK), you can use the ExportDataKey operation to distribute the data key to other regions or cryptographic modules. The ExportDataKey operation returns the ciphertext of the data key, re-encrypted with the specified public key.
You can import the exported ciphertext into the cryptographic module that holds the corresponding private key. This process lets you securely distribute the data key from KMS to a cryptographic module. After the data key is imported into the cryptographic module, you can use it to encrypt or decrypt data.
Coba sekarang
Test
RAM authorization
Parameter permintaan
|
Parameter |
Type |
Required |
Description |
Example |
| CiphertextBlob |
string |
Yes |
Ciphertext kunci data yang dienkripsi menggunakan customer master key (CMK). |
ODZhOWVmZDktM2QxNi00ODk0LWJkNGYtMWZjNDNmM2YyYWJmS7FmDBBQ0BkKsQrtRnidtPwirmDcS0ZuJCU41xxAAWk4Z8qsADfbV0b+i6kQmlvj79dJdGOvtX69Uycs901q******** |
| EncryptionContext |
object |
No |
String JSON yang terdiri dari pasangan kunci-nilai. EncryptionContext adalah konteks enkripsi yang diteruskan saat kunci data dienkripsi menggunakan CMK. Untuk informasi lebih lanjut, lihat EncryptionContext. |
{"Example":"Example"} |
| PublicKeyBlob |
string |
Yes |
Kunci publik dalam format Base64. |
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAndKfC2ReLL2+y8a0+ZBBeAft/uBYo86GZiYJuflqgUzKxpyuvlo3uQkBv6b+nx+0tz8g8v7GhpPWMSW5L9mNHYsvYFsa7jTxsYdt17yj6GlUHPuMIs8hr5qbwl38IHU1iIa7nYWwE2fb3ePOvLDACRJVgGpU0yxioW80d2QD+9aU4jF5dlAahcfgsNzo2CXzCUc1+xbmNuq7Rp+H9VJB9dyYOwqnW3RhOLBo21FzpORapf0UiRlrHRpk1V6ez+aE1dofaYh/9bh0m6ioxj7j5hpZbWccuEZTMBKd+cbuBkRhJzc6Tti6qwZbDiu4fUwbZS0Tqpuo1UadiyxMW******** |
| WrappingKeySpec |
string |
Yes |
Tipe kunci publik yang ditentukan oleh PublicKeyBlob. Untuk informasi lebih lanjut tentang tipe kunci, lihat Pengenalan kunci asimetris.
|
RSA_2048 |
| WrappingAlgorithm |
string |
Yes |
Algoritma enkripsi yang digunakan untuk mengenkripsi kunci data dengan kunci publik yang ditentukan oleh PublicKeyBlob. Untuk informasi lebih lanjut tentang algoritma, lihat AsymmetricDecrypt.
|
RSAES_OAEP_SHA_256 |
| DryRun |
string |
No |
Apakah akan mengaktifkan mode DryRun.
Mode DryRun digunakan untuk menguji pemanggilan API serta memverifikasi izin pada Sumber daya yang ditentukan dan validitas parameter permintaan. Jika Anda mengaktifkan mode DryRun, KMS mengembalikan tanggapan kegagalan dan alasan kegagalan. Alasan kegagalan mencakup:
|
false |
Elemen respons
|
Element |
Type |
Description |
Example |
|
object |
|||
| KeyVersionId |
string |
The ID of the key version that is used to decrypt the ciphertext of the specified data key. |
2ab1a983-7072-4bbc-a582-584b5bd8**** |
| KeyId |
string |
The ID of the CMK that is used to decrypt the ciphertext of the specified data key. |
202b9877-5a25-46e3-a763-e20791b5**** |
| RequestId |
string |
The ID of the request, which is a unique identifier generated by Alibaba Cloud for the request. You can use the request ID to troubleshoot issues. |
4bd560a1-729e-45f1-a3d9-b2a33d61046b |
| ExportedDataKey |
string |
The exported data key that is protected by public key encryption. |
BQKP+1zK6+ZEMxTP5qaVzcsgXtWplYBKm0NXdSnB5FzliFxE1bSiu4dnEIlca2JpeH7yz1/S6fed630H+hIH6DoM25fTLNcKj+mFB0Xnh9m2+HN59Mn4qyTfcUeadnfCXSWcGBouhXFwcdd2rJ3n337bzTf4jm659gZu3L0i6PLuxM9p7mqdwO0cKJPfGVfhnfMz+f4alMg79WB/NNyE2lyX7/qxvV49ObNrrJbKSFiz8Djocaf0IESNLMbfYI5bXjWkJlX92DQbKhibtQW8ZOJ//ZC6t0AWcUoKL6QDm/dg5koQalcleRinpB+QadFm894sLbVZ9+N4GVs******* |
Contoh
Respons sukses
JSONformat
{
"KeyVersionId": "2ab1a983-7072-4bbc-a582-584b5bd8****",
"KeyId": "202b9877-5a25-46e3-a763-e20791b5****",
"RequestId": "4bd560a1-729e-45f1-a3d9-b2a33d61046b",
"ExportedDataKey": "BQKP+1zK6+ZEMxTP5qaVzcsgXtWplYBKm0NXdSnB5FzliFxE1bSiu4dnEIlca2JpeH7yz1/S6fed630H+hIH6DoM25fTLNcKj+mFB0Xnh9m2+HN59Mn4qyTfcUeadnfCXSWcGBouhXFwcdd2rJ3n337bzTf4jm659gZu3L0i6PLuxM9p7mqdwO0cKJPfGVfhnfMz+f4alMg79WB/NNyE2lyX7/qxvV49ObNrrJbKSFiz8Djocaf0IESNLMbfYI5bXjWkJlX92DQbKhibtQW8ZOJ//ZC6t0AWcUoKL6QDm/dg5koQalcleRinpB+QadFm894sLbVZ9+N4GVs*******"
}
Kode kesalahan
|
HTTP status code |
Error code |
Error message |
Description |
|---|---|---|---|
| 400 | InvalidParameter | The specified parameter is not valid. | An invalid value is specified for the parameter. |
| 500 | InternalFailure | Internal Failure. | |
| 404 | InvalidAccessKeyId.NotFound | The Access Key ID provided does not exist in our records. |
Lihat Error Codes untuk daftar lengkap.
Catatan rilis
Lihat Release Notes untuk daftar lengkap.