Abstract: Apparatus, systems, and methods may operate to establish a secure communications tunnel between a server node and a client node, and to receive user requests from the client node at the server node via the secure communications tunnel. The user requests may be received in conjunction with a device verification token derived from nonces generated by the server node and transmitted to the client node as part of keep-alive response messages. The nonces may change according to a period of time established by the server node. Additional apparatus, systems, and methods are disclosed.

Abstract: Techniques for identity-based Peer-to-Peer (P2P) Virtual Private Networks (VPN's) are provided. First and second principals authenticate to a trusted third party. The first principal subsequently requests a P2P VPN with the second principal. The second principal is contacted on behalf of the first principal and permission is acquired. The first and second principals are then sent commands to directly establish a P2P VPN communication session with one another.

Abstract: Techniques for secure network communication are provided. Credentials for a user along with a transparently generated secret are sent to a resource that the user desires to establish a secure communication session with. After successful authentication of the user, an initial sequence number for a first transaction of the session is set on a client of the user. Thereafter, with each transaction of the session the client supplies a new and unique sequence number to a server of the resource and uses the secret to encode and validate that transaction. The server of the resource does not permit any transaction that includes an invalid or previously used sequence number.

Abstract: Techniques for identity techniques for single sign-on functionality for secure communications over insecure networks are provided. A principal achieves single sign-on access to a server via a client by initially authenticating to third-party authentication service. Next, a credentialing service supplies a randomly generated credential to the client and the server unbeknownst to the principal. The principal is then equipped to engage in secure communicates over an insecure network using the credential that is managed by services of the client to authenticate to services of the server in a fashion that the principal is unaware of.