Abstract: A scalable, distributed system and method for communicating originating network information for multiparty billing of network services, with authentication of originating network attributes, having particular application when value added services are provided to subscribers of other networks, for which price is determined at the terminating end. An originating network attribute, e.g. an originating network identification, is associated with a private-public key pair of the originating network operator, a service request is generated comprising an network attribute pair containing a clear text attribute and an encrypted attribute, encrypted with the private-key of the originating network operator. Authorized parties having a billing relationship with the originating network operator have access to public keys for decryption and verification the originating network identification prior to forwarding of the service request for completion and billing.

Abstract: Systems and methods are provided for managing user information comprising presence information, wherein authentication of requesting parties is based on public-private key pair encryption and key Domain Name Service (kDNS) infrastructure. Thus, a response to a request for presence information may be dependent on the authentication status of the requesting party. Presence information stored on a presence server or other network element may be stored or updated upon receiving a request from a user which includes the requestors identify, and is signed with the private key of the requestor. After authentication of a user having a registered unique identifier and an associated public key, presence information may be stored or updated, in either encrypted or unencrypted form. Presence information is preferably stored with user specified policy information for managing access to the presence information by other users, e.g.

Abstract: A distributed and scalable system for public key registration, distribution and management is provided, comprising a hierarchical key server network providing key address resolution (kDNS) functionality based on a kDNS server hierarchy or a key-DNS server hierarchy and associated protocols. Thus, public-keys of users, such as email recipients, can be searched and retrieved over the internet based on a unique identifier of the user, facilitating secure communication between users in different network domains and organizations.

Abstract: A social network server executes instructions to implement a method that comprises: establishing a connection to a payable content management server that stores a set of preview items corresponding to payable content items and a location element for each payable content item; rendering the preview items accessible to a computing appliance connected to the social network server; receiving an indication that a particular one of the preview items has been selected using the computing appliance; and forwarding to the computing appliance the location element for the payable content item corresponding to the selected preview item. The location element for the payable content item corresponding to the selected preview item comprises an address of (or a domain name routable to) a designated network entity operated by an organization with which an operator of the payable content management server or the payable content item server has an inter-organizational billing arrangement.

Abstract: Systems and methods are provided for managing user information comprising presence information, wherein authentication of requesting parties is based on public-private key pair encryption and key Domain Name Service (kDNS) infrastructure. Thus, a response to a request for presence information may be dependent on the authentication status of the requesting party. Presence information stored on a presence server or other network element may be stored or updated upon receiving a request from a user which includes the requestors identify, and is signed with the private key of the requestor. After authentication of a user having a registered unique identifier and an associated public key, presence information may be stored or updated, in either encrypted or unencrypted form. Presence information is preferably stored with user specified policy information for managing access to the presence information by other users, e.g.

Abstract: A scalable, distributed system and method for communicating originating network information for multiparty billing of network services, with authentication of originating network attributes, having particular application when value added services are provided to subscribers of other networks, for which price is determined at the terminating end. An originating network attribute, e.g. an originating network identification, is associated with a private-public key pair of the originating network operator, a service request is generated comprising an network attribute pair containing a clear text attribute and an encrypted attribute, encrypted with the private-key of the originating network operator. Authorized parties having a billing relationship with the originating network operator have access to public keys for decryption and verification the originating network identification prior to forwarding of the service request for completion and billing.

Abstract: A system, method and software module for secure electronic communication services, wherein a public key (25) of private-public-key pair (30,25) is associated with an email address (24), internet name or other registered unique identifier; the registered user of the unique identifier holds the private-key (30) securely, and the respective public-key (25) is made accessible on a key server (6) for look-up and retrieval by other users, for encryption of communications to be sent to the holder of the private-key, and optionally for message confidentiality, message integrity and authentication of sender and recipient, without requiring certificates.

Abstract: A system to ease secure email communication by providing a unique email address of a user's choice, along with a private and public key pair which are generated and then associated with the email address. Along with the key pair, an plug-in to her preferred mail client is delivered to the user. The plug-in will allow for automatic retrieval of recipient's public keys from a server and encryption of mails to recipients whose email address is associated with a public key. Also, the email plug-in will perform automatic decryption of incoming mail, if necessary, plus additional functionality based on the existence of public and private keys.