FAQ

1.AUTH_ 105: The server verifies the request header parameters validate-timestamp (validTimeStamp) and validate-recvwindow (recvwindow) The following rule must hold: |dealTimeStamp - validTimeStamp| < recvwindow (dealTimeStamp = server time when the request is processed, in milliseconds), otherwise AUTH_105 will be returned. To avoid this error, validate-timestamp recommends using the time when the request was sent, and it is measured in milliseconds. The validate-recvwindow is set a little larger

2.AUTH_103 (signature error): the string the server signed differs from yours. Check it against Signature generation and Common Signature Errors; the test vectors there let you verify your code offline.