Signature algorithm
Signature element
| Element Key | Remarks |
|---|---|
| Nonce | Random number. GUID format, each time calling interface should be newly generated. |
| Timestamp | Current UTC time stamp. 13-bit millisecond level. |
| App | AppKey in the authentication information issued by the authorizer. The App data value of calling different Application should change accordingly. |
| Security | The SecurityKey in the authentication information issued by the authorizer. The Security data value of calling different Application should change accordingly. |
| Service parameter | Parameters required for each interface |
Contents and delivery methods to be delivered by Signature
Delivery contents：
| Element Key | Remarks |
|---|---|
| Nonce | Nonce in Signature Element |
| Timestamp | Timestamp in Signature Element |
| App | App in Signature Element |
| Sign | Signature value by calculation |
Delivery methods：
Add delivery contents to Http Header. No sequence requirement.
Algorithm
Filter service parameters
Add all service parameters to a Dictionary and filter out Item with a parameter value of
null.Sort signature elements
Add other signature elements and corresponding values to the Dictionary in the first step, and arrange them in ascending order according to the key of Dictionary to obtain the sorted Dictionary.
Connect original signature string
Connect the sorted dictionaries into strings.
Individual items are combined in the form of
key=value，and all combined items are connected with&symbols. Note that the value used here is actually the serialized value of this value.Call SHA-256 to encrypt the original signature string to obtain the signature value
Call SHA-256 method to encrypt the original signature string, and the encrypted value is the signature value.