Abstract: The present invention provides methods for forming apparatus and devices including an anode including at least one metallic lithium layer and at least one backing layer, at least one cathode/counter electrode, at least one separator disposed between the anode and the at least one cathode/counter electrode and an electrolyte, wherein the apparatus is configured to provide a lithium utilization efficiency of at least 80% and wherein the at least one backing layer weighs less than 30% of a copper backing layer of the same dimensions.

Abstract: The present invention relates to an electromagnetic waveguide comprising an electromagnetic interference shielding gasket which includes a self-supporting body of non-woven carbon nanotubes adapted to incorporate one or more apertures and to the electromagnetic interference shielding gasket per se.

Abstract: The present invention provides methods for forming apparatus and devices including an anode including at least one metallic lithium layer and at least one backing layer, at least one cathode/counter electrode, at least one separator disposed between the anode and the at least one cathode/counter electrode and an electrolyte, wherein the apparatus is configured to provide a lithium utilization efficiency of at least 80% and wherein the at least one backing layer weighs less than 30% of a copper backing layer of the same dimensions.

Abstract: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

Abstract: A method for producing an output from an input encoding the output, the method including choosing functions G, F, and H, providing an input x, choosing a random number r, computing x?=G(x, r), sending x? to a computation unit, computing, in the computation unit, y?=F(x?), receiving y? from the computation unit, and computing the output w=H(y?, r), wherein G, F, and H are chosen such that w is not dependent on the choice or r. Related apparatus and methods are also described.

Abstract: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

Abstract: A method for protecting content including providing a host, a player, a communications link between host and player for communicating content therebetween, a recordable medium adapted to be played by and recorded to by the player, and an encrypted item of content, and producing a secure content license corresponding to the content, the license including a key for accessing the content, a permission list for determining whether the host or the player is allowed to access the content under pre-defined circumstances, the circumstances including a type of use of the encrypted content, an identification of the recordable medium, the recordable medium identification generated in accordance with a predefined recordable medium identification generation algorithm, and describing at least one physical characteristic of the recordable medium, and an identification of the content, the item identification describing at least one data characteristic of the content.

Abstract: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

Abstract: A method for producing an output from an input encoding the output, the method including choosing functions G, F, and H, providing an input x, choosing a random number r, computing x′=G(x, r), sending x′ to a computation unit, computing, in the computation unit, y′=F(x′), receiving y′ from the computation unit, and computing the output w=H(y′, r), wherein G, F, and H are chosen such that w is not dependent on the choice or r. Related apparatus and methods are also described.