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7099471 |
Detecting compromised ballots
A facility for discerning corruption of an electronic ballot is described. The facility sends from a first computer system to a second computer system an encrypted ballot that reflects a ballot...
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7100051 |
Public-key signature methods and systems
The invention provides for a cryptographic method for digital signature. A set S 1 of k polynomial functions P k (x 1 , . . . , x n+v , y 1 , . . . , y k ) are supplied as a public key, where k,...
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7100043 |
LIFM algorithm for security association database lookup in IPSEC application
Current applications used in security system for encryption/decryption/authentication require intense CPU computation for an SAD search. Therefore, a part of the SAD is planted into an ASIC in...
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7099850 |
Methods for providing cardless payment
The method and system of the invention provide a variety of techniques for using a selected alias and a selected personal identification entry (PIE) in conjunction with use of a transaction card,...
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7096352 |
Security protocol structure in application layer
A security protocol structure for a Wireless Application Protocol (WAP) standard structure is disclosed. The security protocol structure provides a data security function in an application layer by...
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7096365 |
Digital signature
The invention relates to the generation of digital signatures by the use of which the legally binding nature of a digital signature is enhanced. For this, an expanded digital signature is created...
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7093134 |
Method and apparatus for signing and sealing objects
Signed objects and sealed objects can be generated using embodiments of the invention. A signed object is an object that has an associated digital signature that can be used to authenticate the...
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7092909 |
Information processing apparatus and method, and distribution medium
An information processing apparatus utilizing encrypted information corresponding to content of purchased right, includes a memory for storing the encrypted information, usage control policy...
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7093129 |
Secured encrypted communications in a voice browser
A method for performing secured communications in a Voice Browser can include the steps of: transmitting a request from the Voice Browser to a network device for a secure communications session...
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7092522 |
Apparatus for solving system of equations on finite field and apparatus for inverting element of extension field
An equation transforming unit triangular transforms a matrix M and a vector v to generate a matrix M′ and a vector v′ for a system of linear equations M′x=v′ in n unknowns that has an...
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7088822 |
Information playback device, information recording device, information playback method, information recording method, and information recording medium and program storage medium used therewith
By recording a digital signature and a public key certificate when recording data on an information recording medium, a recording device having recorded content can be specified. If recording media...
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7088821 |
Absolute public key cryptographic system and method surviving private-key compromise with other advantages
The present invention presents a public key cryptographic system and method called Absolute Public Key Cryptography that survives private key compromise and offers two-way communication security....
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7082536 |
System and method for computerized global messaging encryption
A computer based message encryption system for transmitting encrypted message between a sending member of an internal messaging system and a receiving non-member or receiving member external user...
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7079650 |
Computing method for elliptic curve cryptography
A fast cryptographic method between two entities exchanging data via a non-secure communication channel. The method, for example, forms a common key between two entities (A,B), each having a secret...
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7080049 |
Method and system for processing a transaction
A method of, and system for, processing payment for a transaction is provided. The method includes providing a user with an option to select payment for the transaction from an account associated...
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7073057 |
Method and apparatus for obtaining status of public key certificate updates
A method and apparatus for public key certificate updates is accomplished when a user of a secured communications system provides, from time to time, a public key certificate update subscription...
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7069435 |
System and method for authentication in a crypto-system utilizing symmetric and asymmetric crypto-keys
A system for authentication of a crypto-system user by the use of both symmetric and asymmetric crypto-keys is provided. A first network station, representing the user, transmits a first request...
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7068785 |
Table driven method for calculating arithmetic inverse for use in cryptography
A method for calculating the arithmetic inverse of a number V modulo U, where U is a prime number, that may be used in cryptography, uses a modified extended greatest common divisor (GCD) algorithm...
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7065642 |
System and method for generation and use of asymmetric crypto-keys each having a public portion and multiple private portions
A system for authentication of network users which is operable in multiple modes, includes a plurality of user network stations and at least one sponsor network station representing a sponsor. Each...
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7062044 |
Method of elliptic curve cryptographic key agreement using coefficient splitting
A method of generating a cryptographic key in an authenticated manner using coefficient splitting. Select a prime number p and an elliptic curve of either a first class or a second class. Select a...
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7062043 |
Method of elliptic curve digital signature using coefficient splitting
A method of generating and verifying a cryptographic digital signature using coefficient splitting. The digital signature is formed by first selecting a finite field, an elliptic curve of a first...
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7058819 |
Data processing system, data processing method, and program providing medium
The inventive data processing apparatus initially generates verifying values for verifying integrity of contents data stored in a memory device, then stores the verifying values in correspondence...
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7058806 |
Method and apparatus for secure leveled access control
Method and apparatus for providing secure, controlled access to one or more functions in an electronic system which may have a plurality of functions having different access requirements. A desired...
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7058603 |
Transaction system
A transaction system includes a network of terminals and a network of servers each form separate communication networks for impersonal transaction and anonymous transmission. No reference to an...
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7054444 |
Public and private key cryptographic method
The invention concerns a cryptographic method for generating public keys and private keys. Two distinct first numbers p and q, of neighboring value are selected, and the number n equal to the...
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7055040 |
Method and apparatus for uniquely and securely loading software to an individual computer
A method and apparatus for uniquely and securely loading software to an individual computer includes requesting download of software components to a hardware platform and delivering a token from a...
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7055032 |
One time password entry to access multiple network sites
A system for accessing multiple different network stations without entry of a password is provided. The password is obtainable by use of a portion of an asymmetric crypto-key. A first station,...
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7055031 |
Method for generation, delivery, and validation of electronic coupons through personal TV service system
A process for coupon generation, delivery, and validation over a personal TV service system is disclosed. A client issues electronic coupons to personal TV service customers via a personal TV...
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7051210 |
Persistance and recovery of security keys
A method and system for persisting and recovering security keys in order to authorize access to a network system is disclosed. Certain security keys are read from a file with root as the effictive...
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7047404 |
Method and apparatus for self-authenticating digital records
A method for proving the validity of a record digitally signed by a user having a digital certificate issued by a certification authority within a hierarchy of certification authorities. The user...
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7043456 |
Mobile electronic transaction personal proxy
A method for obtaining a digital signature is disclosed. Upon receipt of request for a digital signature within a customer computer, a Mobile electronic transaction proxy within the customer PC...
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7043018 |
Prime number generation method, prime number generation apparatus, and cryptographic system
A prime number generation method for efficiently generating prime numbers that are highly resistant to the P−1 and P+1 methods. These prime numbers are used in a cryptosystem. Prime candidates...
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7039616 |
Method for proof of transaction
A method for proof of the time and content of transactions in a digital network is described. A digital form is requested by a customer's computer ( 1 ) and is transmitted from a bid server ( 3 )...
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7039946 |
Piggy-backed key exchange protocol for providing secure, low-overhead browser connections when a client requests a server to propose a message encoding scheme
A method, system, and computer program product for establishing security parameters that are used to exchange data on a secure connection. A piggy-backed key exchange protocol is defined, with...
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7039615 |
Retail transactions involving digital content in a digital rights management (DRM) system
A retailer facilitates issuance of a digital license from a licensor to a customer for a corresponding piece of digital content. The retailer receives payment for the license from the customer,...
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7035403 |
Encryption method and apparatus with escrow guarantees
A message to be transmitted through a network is encrypted such that the resulting encrypted message has associated therewith a proof of correctness indicating that the message is of a type that...
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7036015 |
Verification protocol
A digital signature verification protocol utilises a pair of signature components incorporating a pair of private keys, one of which is a long term key and the other of which is a short term key. ...
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7035918 |
License management system and method with multiple license servers
A system for managing licenses for protected software on a communication network is disclosed. The system comprises at least one client computer and a pool of license servers coupled to the...
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7035406 |
Signature authenticating apparatus, signature authenticating method, signature authenticating program, and storage medium storing signature authenticating program
An entered signature is compared with registered signature data to calculate an evaluation value, and when the evaluation value for the entered signature is within the allowable range for...
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7032111 |
Method for optimizing of data transmission
The invention is related to optimization of data transmission in TCP/IP networks, particularly to problems created by transmission of encrypted traffic. According to the invention, an indication of...
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7031469 |
Optimized enveloping via key reuse
The present invention provides optimized enveloping for a public key cryptography system. A sender may reuse a secret key in multiple communications to a recipient without the need to recompute or...
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7024552 |
Location authentication of requests to a web server system linked to a physical entity
A system for authenticating the location of a client system accessing a web server system associated with a physical entity includes a location beacon adjacent to the physical entity. The location...
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7023990 |
Secure parameter generating device and parameter generating method in algebraic curve crytography
The Stickelberger element computing device computes a Stickelberger element ω in an ab cyclotomic; the Jacobian addition candidate value computing device computes the Jacobian addition candidate...
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7020281 |
Timing attack resistant cryptographic system
A method for determining a result of a group operation performed an integral number of times on a selected element of the group, the method comprises the steps of representing the integral number...
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7020776 |
Cryptosystem based on a Jacobian of a curve
A cryptosystem has a secret based on an order of a group of points on a Jacobian of a curve. In certain embodiments, the cryptosystem is used to generate a product identifier corresponding to a...
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7020282 |
Simplified secure, swift cryptographic key exchange
One aspect of the present invention establishes a session key by a receiving unit R transmitting a plurality of quantities for storage in a public repository. A sending unit S:
1. retrieves...
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7020638 |
System and method for flexible micropayment of low value electronic assets
An electronic asset system mints a stick of electronic assets that can be spent by the user with multiple vendors. Assets sticks are issued anonymously or non-anonymously in a way without requiring...
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7016500 |
Code exchange protocol
A method of secure communication in which communication partners (A, B) in each case have a secret (S) and a public code (P), in which the communication partner (A) selects a random number (x) and...
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7017041 |
Secure communications network with user control of authenticated personal information provided to network entities
A communications network is provided for securing communications and updating user identity information. A symmetric crypto-key, an asymmetric crypto-key having first and second private key...
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7010692 |
Cryptographic methods for remote authentication
Methods are described for two parties to use a small shared secret (S) to mutually authenticate one another other over an insecure network. The methods are secure against off-line dictionary attack...
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