Abstract: A method and system that generates a secret from individual's biometric information, such as voice, handwriting and fingeprint. It extracts a feature vector from the captured biometric data. The feature vector is then transformed into a codewood, and the codeword is used to construct the secret. A one-way hash of the secret is stored. Only if a user generates a new secret that has the same hash value as that stored will the user be confirmed. To keep pace with the gradual change of the measured biometric features, the a secret can be updated adaptively. The secret may be an encryption key.

Abstract: A method, apparatus and a computer program product are described for copy protecting encrypted documents in a client-server system using an unsecured communication channel. The client-server system has clients and a server for storing encrypted documents. Encrypted documents e(Ks, M) are received by a client from the server. Communications on a transmission channel between the client and the server are then authenticated. Such communications also include electronic payments initiated by a user using the client. Upon authenticating or payment, an encrypted document can then be decrypted. After decrypting, the unencrypted document is displayed but prevented from storage at any client unless re-encrypted using a host specific key KH associated with the client to thereby provide a re-encrypted document.

Abstract: Content addressable memory (CAM) devices include CAM arrays that can identify a best match(es) from a plurality of matches when an operation to compare data applied to a CAM array against data entries within the CAM array is performed. This best match identification operation is preferably performed internal to the CAM array. The best match identification operation does not require operations to determine a highest priority match based on the relative physical locations of multiple matching entries that might be identified within the CAM array during a compare operation. The CAM device also does not require that the CAM array(s) therein be sectored into groups of entry locations (e.g., rows) having ordered priorities or that each CAM array within a multi-array CAM device be treated as a respective sector. Entries having identical priority may be entries having the same number of actively masked bits therein.

Abstract: Content addressable memory (CAM) devices include CAM arrays that can identify a best match(es) from a plurality of matches when an operation to compare data applied to a CAM array against data entries within the CAM array is performed. This best match identification operation is preferably performed internal to the CAM array. The best match identification operation does not require operations to determine a highest priority match based on the relative physical locations of multiple matching entries that might be identified within the CAM array during a compare operation. The CAM device also does not require that the CAM array(s) therein be sectored into groups of entry locations (e.g., rows) having ordered priorities or that each CAM array within a multi-array CAM device be treated as a respective sector. Entries having identical priority may be entries having the same number of actively masked bits therein.

Abstract: Functional polyolefin material containing a terminal styrene or styrene derivative unit and having the following molecular structure: in which polyolefin is a homopolymer or copolymer prepared by metallocene-mediated coordination polymerization of linear, branched or cyclic C3-C18 alpha-olefins and/or diolefins, in which the molecular weight of polyolefin segment is above 500 g/mole, preferably in the range between 10,000 to 1,000,000 g/mole, in which the number of methylene spacer units (n) is between 0 and 6, and preferably between 0 and 3, and in which X is a group selected from H, Cl, Br, I, OH, NH2, COOR, O—BR2, O—SiR3, N(SiR3)2, BR2, SiR3 (where R is a C1 to C10 linear, branched, cyclic or aromatic alkyl group), CH═CH2, COOH, COOLi, and succinic anhydride, is disclosed. Also disclosed is a process for preparing the functional polyolefin material.

Abstract: Functional polyolefin material containing a terminal styrene or styrene derivative unit and having the following molecular structure: 1

Abstract: The invention relates to polyolefin copolymers (I) and to graft copolymers (II) which are prepared from the copolymers (I), wherein the copolymers (I) are linear copolymers containing divinylbenzene comonomer units selected from the group consisting of 1,4-divinylbenzene units, mixtures of 1,4- and 1,3-divinylbenzene units and mixtures of 1,4-, 1,3- and 1,2-divinylbenzene units, wherein R, in formulas I and II, is a C1 to C10 linear or branched alkyl group or a C6 to C10 substituted or unsubstituted aromatic group; and wherein G and G′, independently, are selected from —H, —OH, epoxy, —NH2, —COOH, anhydride, —Cl, —Br, —M, —COOM (M=metal) or a polymer chain having the molecular weight of at least about 500, which can be derived from both step and chain polymerization reactions. In the graft copolymer (II), the combined alpha-olefin mole % (x+y) is from about 50 and 99.

Abstract: The invention relates to polyolefin copolymers (I) 1