Sign

Signature Introduction

Restful API Signature Public Parameters

Headers:

Name	Types	Mandatory	Description
api-key	string	Y	api-key applied
nonce	string	Y	Random string，32bits
timestamp	string	Y	Current timestamp, milliseconds
sign	string	Y	Singanture string

Signature steps:

1. All queryParams are sorted in ascending ASCII order by Key, Example: String queryParams = "id=1uid=200"
2. Parameters in body, compressed into a string, remember to remove all spaces, Example：String body = {"uid":"2899","arr":[{"id":1,"name":"maple"},{"id":2,"name":"lily"}]}
3. Signature, needs to be encrypted 2 times

   • String digest = SHA256(nonce + timestamp + api-key + queryParams + body)
   • String sign = SHA256(digest + secretKey)
   • Note: secretKey is together when applying for api-key. Please keep them safely and do not pass it around.

WebSocket API Singature Parameters

WebSocket API requests require authentication, and the following fields need to be included in all request parameter params:

Name	Type	Mandatory	Description
apiKey	string	Y	API Key
timestamp	string	Y	Timestapmp
nonce	string	Y	Random string
sign	string	Y	Signature string

Signature steps:

1. Sort all fields in params except the sign field in ascending ASCII order by Key, remember to remove all spaces, Example: String params = "apiKey9a25209b66004da404d9ddcb48d1e11fnonce123456symbolBTCtimestamp1724285700000"
2. Signature, needs to be encrypted 2 times

   • String digest = SHA256(nonce + timestamp + apiKey + params)
   • String sign = SHA256(digest + secretKey)
   • Note: secretKey is together when applying for apiKey. Please keep them safely and do not pass it around.