[cs615asa] About HW1

[byu1]

Hi all,

I've created an Open Solaris Instance by Amazon Command line Tools. 
When I try to login to the system through SSH with following command:

$ ssh -i ./cs615-opensolaris-key.pem 
ec2-user at ec2-75-101-196-24.compute-1.amazonaws.com
The authenticity of host 'ec2-75-101-196-24.compute-1.amazonaws.com 
(75.101.196.24)' can't be established.
RSA key fingerprint is 15:3a:03:d1:b9:3e:2d:37:7f:77:41:05:a2:1e:9a:d6.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 
'ec2-75-101-196-24.compute-1.amazonaws.com,75.101.196.24' (RSA) to the 
list of known hosts.
Password:

Then the system popups a Password prompt that let me enter a password, 
but I don't know what the password is.

Does anyone can help me resolve this issue?

Thanks,

BoYu