Protocols/MSNP/MSNP18/SSO

MSN Protocol Version 18

Overview · Changes · Example Session · SSO ·

RPS/SSO Authentication

The only difference between MSNP15 and MSNP18 SSO authentication is the addition of sending a Machine Guid as an extra parameter to what you would already be sending

Abstract

Client: USR <TrId> SSO I <email>\r\n
Server: USR <TrId> SSO S <policy> <base64 encoded nonce>\r\n
Client: USR <TrId> SSO S <ticket> <base64 encoded response structure> <machineguid>\r\n
Server: USR <TrId> OK <email> <verified> 0\r\n

Example

Client: USR 10 SSO I buddy@live.com\r\n
Server: USR 10 SSO S MBI_KEY_OLD E4Fhehbe0q2Je+SUSp7IRnJV+rN4uME75ljIpUjIZ1Si+DgmrfuiIL+AFmkMA6Wv {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\r\n
Client: USR 11 SSO S t=... HAAAAAEAAAADZgAABIAAAA...\r\n
Server: USR 11 OK buddy@live.com 1 0\r\n

References

MSNP15 SSO Authentication