Matches 1 - 41 out of 41


Match Document Document Title
US20080034114 System and method for managing emergency notifications over network  
Systems and methods are disclosed for managing event and emergency notification over a network. A message is generated in a first interface according to an emergency data sharing standard, the...
US20050039023 Digital signatures on a smartcard  
A digital signature scheme for a “smart” card utilizes a set of prestored signing elements and combines pairs of the elements to produce a new session pair. The combination of the elements is...
US20050262355 Method of providing a signing key for digitally signing verifying or encrypting data and mobile terminal  
The present invention relates to a method of providing a key, in particular for digitally signing, verifying or encrypting data to be exchanged between a first party and a second party, comprising...
US20090083413 Distributed frequency data collection via DNS  
Domain Name Service (DNS) requests are used as the reporting vehicle for ensuring that security-related information can be transferred from a network. As one possibility, a central facility for a...
US20050172132 Secure key authentication and ladder system  
Method and system for secure key authentication and key ladder are provided herein. Aspects of the method for secure key authentication may include generating a digital signature of a secure key...
US20050114670 Server-side digital signature system  
A digital signature system is provided on a server for use by remote clients, such as by using a browser. The server generates and maintains all of the users' keys used for producing a digital...
US20060095778 Analog and digital indicia authentication  
An authentication-enabled indicium contains authentication information in a digital recording medium. The information may be a digital signature that verifies the manufacturer's data and/or an...
US20150074417 APPARATUS AND METHOD FOR ACCESS CONTROL OF CONTENT IN DISTRIBUTED ENVIRONMENT NETWORK  
An apparatus for generating a key for access control of content in a distributed environment network is provided. The apparatus includes a first key distributor configured to generate first...
US20070283158 System and method for generating a forensic file  
A file having a data structure is provided which includes copied information, a first hash value, and a second hash value. The file can be generated by copying original information from an...
US20080095360 Signature System and Signature Method  
A signature system in which size of data to be transmitted is small and data can be processed efficiently in a Merkle signature system having high security. A processing part 112 of a smartcard...
US20080089435 COMPUTER-IMPLEMENTED METHOD AND SYSTEM TO ENABLE OUT OF BAND TRACKING FOR DIGITAL DISTRIBUTION  
A computer-implemented method and system to enable out of band tracking for digital distribution are disclosed. The method and system include storing an ancillary data block related to a unit of...
US20120166808 LATTICE-BASED RING SIGNATURE METHOD  
A lattice-based ring signature method includes generating a dimension, a bound, a length of a hashed message, a Gaussian parameter and an open parameter, which are parameters necessary for a ring...
US20070124584 Proving ownership of shared information to a third party  
Establishing proof of authorized receipt of information between two recipients involves a sender developing an asymmetric key pair and sending one key to each of the two recipients. A first...
US20070118752 Authentication of control units in a vehicle  
A control unit transmits an authentication request to an authentication device via the bus system. The authentication device signs the authentication request using a first symmetric key and...
US20060265595 Cascading key encryption  
A method for securely transmitting data involves generating keys depending on previous keys and additional information, such as a password, in order to create a pseudo one-time pad. The data is...
US20080091941 Group Signature System, Member Status Judging Device, Group Signature Method And Member Status Judging Program  
For group signature data capable of keeping anonymity, it is possible to efficiently determine whether the user having created the group signature data is a valid member of the group. When a...
US20050210260 Unimodular matrix-based message authentication codes (MAC)  
The present invention leverages the invertibility of determinants of unimodular matrices to provide a universal hash function means with reversible properties and high speed performance. This...
US20090327735 UNIDIRECTIONAL MULTI-USE PROXY RE-SIGNATURE PROCESS  
A “proxy re-signature system” provides various techniques for transforming a delegatee's signature on a message m into a delegator's on the same message m. Various embodiments of non-interactive...
US20060089809 Data processing apparatus  
When receiving prescribed entry data from an input device, a data entry device issues an authenticate request to a biological authentication device. Upon receipt of the authenticate request, the...
US20140237254 CRYPTOGRAPHIC DEVICES AND METHODS FOR GENERATING AND VERIFYING LINEARLY HOMOMORPHIC STRUCTURE-PRESERVING SIGNATURES  
Generation of linearly homomorphic structure-preserving signature σ on a vector (M1, . . . , Mn)∈n by computing, in a processor, using a signing key sk={χi, γi, δi}i=1n, signature elements (z, r,...
US20110126022 METHOD FOR GENERATING AN ADVANCED ELECTRONIC SIGNATURE FOR AN ELECTRONIC DOCUMENT  
A process for the generation of an advanced electronic signature of an electronic document (4) using a signature creation unit (1) comprises the generation of unambiguous user identification data...
US20070028115 Method for guaranteeing the integrity and authenticity of flashware for control devices  
The invention relates to a simplified symmetrical, cryptographic method. The basis of this method is an authentication code. This authentication code is calculated in a secured area, referred to...
US20070150740 Method for providing information security for wireless transmissions  
A wireless communication system includes a pager or similar device that communicates to a home terminal. The home terminal confirms the identify of the pager and attaches a certificate to the...
US20170063550 Secure Digital Signature Apparatus and Methods  
The invention is a secure digital signature device which generates digital signature key pairs using a hardware random number generator. It transmits public keys to one or more smart devices and...
US20110302421 Authentication Method And Apparatus Using One Time Pads  
An authentication method is provided between entities (10A; 10B) having matching one-time pads each with multiple OTP blocks. From the standpoint of a first one (10A) of the entities, the method...
US20080141035 Limited Blind Signature System  
The present invention is aimed at the proposal of a limited blind signature system which is highly safe such that its safety can be proven without the assumption of a random oracle model. A...
US20060085647 Detecting compromised ballots  
A facility for transmitting a ballot choice selected by a voter is described. The facility encrypts the ballot choice with a first secret known only to the client to generate a first encrypted...
US20120137136 GROUP SIGNATURE SCHEME  
An efficient and safe group signature scheme is provided. According to the present invention, an open unit is provided to not an issuer but an opener, and a data required for operating the open...
US20090031137 BLIND SIGNATURE METHOD AND ITS SYSTEM  
Signature requestor terminal device (10) codes a plurality of messages to a quantum state and transmits it to signer terminal device (20). Signer terminal device (20) issues a blind signature for...
US20060156013 DIGITAL SIGNATURE SOFTWARE USING EPHEMERAL PRIVATE KEY AND SYSTEM  
Facilitating communication using a digital signature includes: communicating software to a first party; receiving from the first party a public key of a public-private key pair generated using the...
US20070277043 Methods for Generating Identification Values for Identifying Electronic Messages  
In a method for generating an identification value for identifying an electronic message by application of a first hash function with fixed compression that compresses n blocks of data into a...
US20090210720 METHOD FOR GENERATING ONE-TIME PASSWORD  
A method for generating a one-time password (OTP) by using software only is provided. The method is suitable for generating a common dynamic password in a first electronic device and a second...
US20090024852 GROUP SIGNATURE SYSTEM, METHOD, DEVICE, AND PROGRAM  
A signature device 2 creates encrypted data by encrypting a first element of a member certificate through use of a first random number and public information disclosed by said group management...
US20100146289 RADIO SCENE ENCRYPTION AND AUTHENTICATION PROCESS  
A method is provided for encryption/decryption for secure the privacy of the information flow between two communicating nodes, and authentication to establish the identity of the communicating...
US20080148054 Secure Signatures  
Systems and methods for secure signatures are described. In one aspect, a secure signature is generated. The secure signature strongly binds an image of an electronic signature (an “electronic...
US20080072055 Digital signature scheme based on the division algorithm and the discrete logarithm problem  
A method of creating a secure digital signature, including one or more of the following: a sender, based on a private key K and message x, calculates a unique pair of integers q and r such that...
US20090217383 LOW-COST SECURITY USING WELL-DEFINED MESSAGES  
Well-defined messages may be transmitted from a sending device to a recipient device in order to reduce the processing and resource requirements imposed by the security semantics of general...
US20100042845 IC TAG SYSTEM  
An IC tag system is provided which can perform transfer of a method of accessing an IC tag and assure data validity of the IC tag only between authorized users. The IC tag system comprises a data...
US20090094460 Method and system for signer self-managed, encryption-based identification and signature secret management to verify signer and to legitimize basic digital signature without the use of certificates, tokens or PKI (private key infrastructure)  
Method and system for signer self-managed, encryption-based identification and signature secret management to verify the signer and to legitimize basic electronic signature without the use of...
US20070174626 Method and apparatus for generating and validating digital signature  
Provided are a method and an apparatus for generating and validating a digital signature. The apparatus for generating the digital signature includes: a converter converting a message to be...
US20070192135 Signature feature of medical note-taking software  
Medical note-taking software is used by healthcare professionals to author notes to be used by the software in generating medical documents. The present invention adds automatic signature...

Matches 1 - 41 out of 41