this is the key Chris.. I could login another using this key.
Please find the below log..
debug1: identity file /root/degas-engineering/us-east/degas-engineering type 1
debug1: identity file /root/degas-engineering/us-east/degas-engineering-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5
debug1: match: OpenSSH_5.5 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.5
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'ec2-23-20-202-10.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /root/.ssh/known_hosts:82
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Offering public key: degas-engineering/us-east/degas-engineering
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Requesting
no-more-sessions@openssh.com
debug1: Entering interactive session.
Last login: Mon Jul 8 09:13:18 2013 from 1.22.214.66
Linux 2.6.34.
root@system:~#