AI-generated Key Takeaways
-  Returns the decrypted Data Encryption Key (DEK) when provided with a wrapped key, authentication, authorization, and reason. 
-  Requires a wrapped key generated by the wrapmethod, alongside authentication and authorization tokens for security and access control.
-  Accepts an optional reason parameter for providing context about the operation, which should be sanitized before display. 
-  Returns the base64-encoded DEK on successful execution, or a structured error reply if the operation fails. 
-  Utilizes the KACLS URL for making the POST request and requires specifying the version in the URL path (e.g., /v1/unwrap). 
Returns decrypted Data Encryption Key (DEK).
For more details, see Encrypt & decrypt data .
HTTP request
 POST https:// KACLS_URL 
/unwrap 
Replace  KACLS_URL 
 
with the Key Access Control List Service (KACLS)
URL.
Path parameters
None.
Request body
The request body contains data with the following structure:
| JSON representation | |
|---|---|
| { "authentication" : string , "authorization" : string , "reason" : string , "wrapped_key" : string } | |
| Fields | |
|---|---|
| authentication |   A JWT issued by the IdP asserting who the user is. See authentication tokens . | 
| authorization |   A JWT asserting that the user is allowed to unwrap a key for  | 
| reason |   A passthrough JSON string providing additional context about the operation. The JSON provided should be sanitized before being displayed. Max size: 1 KB. | 
| wrapped_key |   The base64 binary object returned by   | 
Response body
If successful, this method returns the document encryption key.
If the operation fails, a structured error reply should be returned.
| JSON representation | |
|---|---|
| { "key" : string } | |
| Fields | |
|---|---|
| key |   The base64-encoded DEK. | 
Example
This example provides a sample request and response for the unwrap 
method.
Request
  POST 
  
 h 
 tt 
 ps 
 : 
 //mykacls.example.com/v1/unwrap 
 { 
  
 "wrapped_key" 
 : 
  
 "7qTh6Mp+svVwYPlnZMyuj8WHTrM59wl/UI50jo61Qt/QubZ9tfsUc1sD62xdg3zgxC9quV4r+y7AkbfIDhbmxGqP64pWbZgFzOkP0JcSn+1xm/CB2E5IknKsAbwbYREGpiHM3nzZu+eLnvlfbzvTnJuJwBpLoPYQcnPvcgm+5gU1j1BjUaNKS/uDn7VbVm7hjbKA3wkniORC2TU2MiHElutnfrEVZ8wQfrCEpuWkOXs98H8QxUK4pBM2ea1xxGj7vREAZZg1x/Ci/E77gHxymnZ/ekhUIih6Pwu75jf+dvKcMnpmdLpwAVlE1G4dNginhFVyV/199llf9jmHasQQuaMFzQ9UMWGjA1Hg2KsaD9e3EL74A5fLkKc2EEmBD5v/aP+1RRZ3ISbTOXvxqYIFCdSFSCfPbUhkc9I2nHS0obEH7Q7KiuagoDqV0cTNXWfCGJ1DtIlGQ9IA6mPDAjX8Lg==" 
 , 
  
 "authorization" 
 : 
  
 "eyJhbGciOi…" 
  
 "authentication" 
 : 
  
 "eyJhbGciOi…" 
  
 "reason" 
 : 
  
 "{client:'drive' op:'read'}" 
 } 
 
 
Response
  { 
  
 "key" 
 : 
  
 "0saNxttLMQULfXuTbRFJzi/QJokN1jW16u0yaNvvLdQ=" 
 } 
 
 

