.net - CRAM-MD5 Sasl机制实现

Question

我想实现 CRAM-MD5 sasl 机制的使用，我正在看System.Security.Cryptography.HMACMD5但不知道从哪里开始。任何人都可以帮助我，欢迎任何东西的教程文章。

Public Function CRAMMD5Credentials(ByVal userName As String, ByVal password As String, ByVal b64challenge As String) As String
    Dim cram As New System.Security.Cryptography.HMACMD5(System.Text.Encoding.ASCII.GetBytes(password))
    Dim challenge As String = System.Text.Encoding.ASCII.GetString(System.Convert.FromBase64String(b64challenge))
    Dim digest As String = System.Text.Encoding.ASCII.GetString(cram.ComputeHash(System.Text.Encoding.ASCII.GetBytes(challenge)))
    Return System.Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes(userName & " " & digest.ToLower))
End Function

Answer 1

What did you try so far? CRAM-MD5 clearly described even in Wikipedia (http://en.wikipedia.org/wiki/CRAM-MD5) and in more details in corresponding RFCs (RFC 2095, RFC 2195)