方法：Privilegedprivatekeydecrypt
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
無須檢查包裝的私密金鑰 ACL 即可解密。用於解密從 Google 匯出的資料 (takeout)。
HTTP 要求
POST https://KACLS_URL/privilegedprivatekeydecrypt
將 KACLS_URL 替換為金鑰存取控制清單服務 (KACLS) 網址。
路徑參數
無。
要求主體
要求主體的資料會採用以下結構：
| JSON 表示法 |
{
"authentication": string,
"algorithm": string,
"encrypted_data_encryption_key": string,
"rsa_oaep_label": string,
"reason": string,
"spki_hash": string,
"spki_hash_algorithm": string,
"wrapped_private_key": string
}
|
| 欄位 |
authentication |
string
由身分識別提供者 (IdP) 發出的 JWT，用於宣告使用者身分。請參閱「驗證權杖」。
|
algorithm |
string
在信封式加密中用來加密資料加密金鑰 (DEK) 的演算法。
|
encrypted_data_encryption_key |
string (UTF-8)
經 Base64 編碼的加密內容加密金鑰，該金鑰會使用與私密金鑰相關聯的公開金鑰加密。大小上限：1 KB。
|
rsa_oaep_label |
string
如果演算法是 RSAES-OAEP，則為 Base64 編碼的標籤 L。如果演算法不是 RSAES-OAEP，系統會忽略這個欄位。
|
reason |
string (UTF-8)
傳送 JSON 字串，提供作業的其他背景資訊。提供的 JSON 應先經過清理，再進行顯示。大小上限：1 KB。
|
spki_hash |
string
要存取的私密金鑰的 DER 編碼 SubjectPublicKeyInfo 的標準 Base64 編碼摘要。
|
spki_hash_algorithm |
string
用於產生 spki_hash 的演算法。可以是「SHA-256」。
|
wrapped_private_key |
string
採用 Base64 編碼的包裝私密金鑰。大小上限：8 KB。
|
回應主體
如果成功，這個方法會傳回 Base64 資料加密金鑰。這組金鑰會用於用戶端解密訊息主體。
如果作業失敗，系統會傳回結構化錯誤回覆。
| JSON 表示法 |
{
"data_encryption_key": string
}
|
| 欄位 |
data_encryption_key |
string
採用 Base64 編碼的資料加密金鑰。
|
範例
這個範例提供 privilegedprivatekeydecrypt 方法的示例要求和回應。
要求
POST https://mykacls.example.org/v1/privilegedprivatekeydecrypt
{
"wrapped_private_key": "wHrlNOTI9mU6PBdqiq7EQA...",
"encrypted_data_encryption_key": "dGVzdCB3cmFwcGVkIGRlaw...",
"authentication": "eyJhbGciOi...",
"spki_hash": "LItGzrmjSFD57QdrY1dcLwYmSwBXzhQLAA6zVcen+r0=",
"spki_hash_algorithm": "SHA-256",
"algorithm": "RSA/ECB/PKCS1Padding",
"reason": "admin decrypt"
}
回應
{
"data_encryption_key": "akRQtv3nr+jUhcFL6JmKzB+WzUxbkkMyW5kQsqGUAFc"
}
除非另有註明，否則本頁面中的內容是採用創用 CC 姓名標示 4.0 授權，程式碼範例則為阿帕契 2.0 授權。詳情請參閱《Google Developers 網站政策》。Java 是 Oracle 和/或其關聯企業的註冊商標。
上次更新時間：2025-07-25 (世界標準時間)。
[null,null,["上次更新時間：2025-07-25 (世界標準時間)。"],[[["\u003cp\u003eDecrypts data exported from Google, like takeout, without checking private key ACLs.\u003c/p\u003e\n"],["\u003cp\u003eUses a \u003ccode\u003ePOST\u003c/code\u003e request to the \u003ccode\u003e/privilegedprivatekeydecrypt\u003c/code\u003e endpoint, providing authentication and encryption details in the request body.\u003c/p\u003e\n"],["\u003cp\u003eReturns the base64-encoded data encryption key upon successful decryption, which is used for client-side decryption of the message body.\u003c/p\u003e\n"],["\u003cp\u003eIn case of failure, the API returns a structured error reply.\u003c/p\u003e\n"]]],["This content describes a decryption process for data exported from Google, specifically using the `privilegedprivatekeydecrypt` method. A POST request is sent with a JSON body including an authentication token, encrypted data encryption key, wrapped private key, hashing information, the encryption algorithm, and a reason string. Upon successful decryption, the response returns a base64-encoded data encryption key, which is to be used for decrypting the message body. The data is not decrypted without checking the key's ACL.\n"],null,["# Method: privilegedprivatekeydecrypt\n\nDecrypts without checking the wrapped private key ACL. It's used to decrypt the\ndata exported ([takeout](https://support.google.com/a/answer/100458)) from Google.\n\n### HTTP request\n\n`POST https://`\u003cvar translate=\"no\"\u003eKACLS_URL\u003c/var\u003e`/privilegedprivatekeydecrypt`\n\nReplace \u003cvar translate=\"no\"\u003eKACLS_URL\u003c/var\u003e with the Key Access Control List\nService (KACLS) URL.\n\n### Path parameters\n\nNone.\n\n### Request body\n\nThe request body contains data with the following structure:\n\n| JSON representation ||\n|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|\n| ``` { \"authentication\": string, \"algorithm\": string, \"encrypted_data_encryption_key\": string, \"rsa_oaep_label\": string, \"reason\": string, \"spki_hash\": string, \"spki_hash_algorithm\": string, \"wrapped_private_key\": string } ``` |\n\n| Fields ||\n|---------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `authentication` | `string` A JWT issued by the identity provider (IdP) asserting who the user is. See [authentication tokens](/workspace/cse/reference/authentication-tokens). |\n| `algorithm` | `string` The algorithm that was used to encrypt the Data Encryption Key (DEK) in envelope encryption. |\n| `encrypted_data_encryption_key` | `string (UTF-8)` Base64-encoded encrypted content encryption key, which is encrypted with the public key associated with the private key. Max size: 1 KB. |\n| `rsa_oaep_label` | `string` Base64-encoded label L, if the algorithm is RSAES-OAEP. If the algorithm is not RSAES-OAEP, this field is ignored. |\n| `reason` | `string (UTF-8)` A passthrough JSON string providing additional context about the operation. The JSON provided should be sanitized before being displayed. Max size: 1 KB. |\n| `spki_hash` | `string` Standard base64-encoded digest of the DER-encoded `SubjectPublicKeyInfo` of the private key being accessed. |\n| `spki_hash_algorithm` | `string` Algorithm used to produce `spki_hash`. Can be \"SHA-256\". |\n| `wrapped_private_key` | `string` The base64-encoded wrapped private key. Max size: 8 KB. |\n\n### Response body\n\nIf successful, this method returns the base64 data encryption key. This key is\nused client-side to decrypt the message body.\n\nIf the operation fails, a\n[structured error reply](/workspace/cse/reference/structured-errors)\nis returned.\n\n| JSON representation ||\n|-------------------------------------------|---|\n| ``` { \"data_encryption_key\": string } ``` |\n\n| Fields ||\n|-----------------------|------------------------------------------------|\n| `data_encryption_key` | `string` A base64-encoded data encryption key. |\n\n### Example\n\nThis example provides a sample request and response for the\n`privilegedprivatekeydecrypt` method.\n\n#### Request\n\n POST https://mykacls.example.org/v1/privilegedprivatekeydecrypt\n\n {\n \"wrapped_private_key\": \"wHrlNOTI9mU6PBdqiq7EQA...\",\n \"encrypted_data_encryption_key\": \"dGVzdCB3cmFwcGVkIGRlaw...\",\n \"authentication\": \"eyJhbGciOi...\",\n \"spki_hash\": \"LItGzrmjSFD57QdrY1dcLwYmSwBXzhQLAA6zVcen+r0=\",\n \"spki_hash_algorithm\": \"SHA-256\",\n \"algorithm\": \"RSA/ECB/PKCS1Padding\",\n \"reason\": \"admin decrypt\"\n }\n\n#### Response\n\n {\n \"data_encryption_key\": \"akRQtv3nr+jUhcFL6JmKzB+WzUxbkkMyW5kQsqGUAFc\"\n }"]]
