Получение следующего сообщения об ошибке из https://mws.amazonservices.com/:
<Type>Sender</Type>
<Code>SignatureDoesNotMatch</Code>
−
<Message>
The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.
</Message>
Вот код VB.net, который я использую для расчета запроса. Из соображений безопасности я удалил SecretKey и AWSAccessKeyId.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim sURL As String = "https://mws.amazonservices.com/"
Dim sRequest As String = ""
sRequest &= "Acknowledged=" & Server.UrlEncode("false")
sRequest &= "&Action=" & Server.UrlEncode("GetReportList")
sRequest &= "&AWSAccessKeyId=" & Server.UrlEncode("REMOVED-FOR-SECURITY")
sRequest &= "&Marketplace=" & Server.UrlEncode("REMOVED-FOR-SECURITY")
sRequest &= "&Merchant=" & Server.UrlEncode("REMOVED-FOR-SECURITY")
sRequest &= "&SignatureMethod=" & Server.UrlEncode("HmacSHA256")
sRequest &= "&SignatureVersion=" & Server.UrlEncode("2")
sRequest &= "&Timestamp=" & Server.UrlEncode(DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ssCST"))
sRequest &= "&Version=" & Server.UrlEncode("2009-01-01")
Dim StringToSign As String = "GET\n" & "mws.amazonservices.com\n" & "/\n" & sRequest
sRequest &= "&Signature=" & Server.UrlEncode(HashString(StringToSign))
Response.Write("<a href=""" & sURL & "?" & sRequest & """>Click here</a>")
End Sub
Public Shared Function HashString(ByVal StringToHash As String) As String
Dim myEncoder As New System.Text.UTF8Encoding
Dim Key() As Byte = myEncoder.GetBytes("REMOVED-FOR-SECURITY")
Dim XML() As Byte = myEncoder.GetBytes(StringToHash)
Dim myHMACSHA256 As New System.Security.Cryptography.HMACSHA256(Key)
Dim HashCode As Byte() = myHMACSHA256.ComputeHash(XML)
Return Convert.ToBase64String(HashCode)
End Function
