AWS Authentication with MFA and 2FA devices

AWS Authentication MFA 2FA
GetSessionToken .net SDK: http://docs.aws.amazon.com/sdkfornet/v3/apidocs/index.html?page=SecurityToken/MSecurityTokenSecurityTokenServiceGetSessionToken.html
GetSessionToken API: http://docs.aws.amazon.com/STS/latest/APIReference/API_GetSessionToken.html
Requesting Temporary Security Credentials  http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html
Permissions http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_getsessiontoken.html
Sample Applications: http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_sample-apps.html