| 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 |
| May-2-2006 |
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 which these... |
| 7032112 |
Account authority digital signature (AADS) system using transactional account information |
| Apr-18-2006 |
In a system for performing an action regarding an account in response to an electronic communication received from a sender by a receiver, wherein the electronic communication includes sender identity... |
| 7031469 |
Optimized enveloping via key reuse |
| Apr-18-2006 |
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 re-encrypt... |
| 7020281 |
Timing attack resistant cryptographic system |
| Mar-28-2006 |
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 as a... |
| 7016500 |
Code exchange protocol |
| Mar-21-2006 |
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 the... |
| 7010697 |
System for dynamically encrypting information for secure internet commerce and providing embedded fulfillment software |
| Mar-7-2006 |
A data distribution system is provided which supplies customers with an executable for requested secured data files to provide the customer with fulfillment software, obviating the need for the customer... |
| 7007170 |
System, method, and apparatus for securely providing content viewable on a secure device |
| Feb-28-2006 |
A system, apparatus, and method are directed to providing and securely viewing secure content. In one embodiment, a secure player provides secure screening/previewing of secure content, such as a motion... |
| 7003117 |
Identity-based encryption system for secure data distribution |
| Feb-21-2006 |
A system is provided that allows encrypted content to be distributed to users over a communications network. A policy enforcement service may use an identity-based encryption algorithm to generate public... |
| 6999948 |
Memory card |
| Feb-14-2006 |
A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption... |
| 6996711 |
Certification validation system |
| Feb-7-2006 |
A certificate validation mechanism is provided for a network interface. The certificate validation mechanism maintains a certificate cache containing local copies of certificates with associated validity... |
| 6988204 |
System and method for key distribution and network connectivity |
| Jan-17-2006 |
Systems and methods for distributing keys of the sort used for purposes including logging onto computer networks, accessing authorized domains, and accessing persistently-protected data. Also discussed... |
| 6987855 |
Operational optimization of a shared secret Diffie-Hellman key exchange among broadcast or multicast groups |
| Jan-17-2006 |
An optimized approach for arriving at a shared secret key in a multicast or broadcast group environment is disclosed. The key exchange method is mathematically equivalent to the standard broadcast version... |
| 6986044 |
Method for group unit encryption/decryption, and method and apparatus for writing signature |
| Jan-10-2006 |
The invention is to provide a group lock which is used in group units for encryption, decryption, and signature. A public key, private key, and common key are provided and the private key is encrypted... |
| 6986045 |
Single algorithm cipher suite for messaging |
| Jan-10-2006 |
A method for authenticating a message recipient and for secure communication of messages from a sender to the message recipient through a server, the method being carried out by one or more data processing... |
| 6983376 |
Method and apparatus for providing privacy of user identity and characteristics in a communication system |
| Jan-3-2006 |
A method and apparatus for providing privacy of user identity and characteristics in a communication system. A public key and a private key is generated, corresponding to a transceiver. The public key... |
| 6983368 |
Linking public key of device to information during manufacture |
| Jan-3-2006 |
A method in which information pertaining to a device (104) generating digital signatures (122) is reliably identified includes manufacturing (102) devices in a secure environment (114)... |
| 6981154 |
Account authority digital signature (AADS) accounts |
| Dec-27-2005 |
A method of managing accounts by an account authority for the same account holder includes associating identity information for each account with the same public key. A method for establishing a new account... |
| 6980660 |
Method and apparatus for efficiently initializing mobile wireless devices |
| Dec-27-2005 |
A method and system for enabling wireless devices distributed throughout an enterprise to be efficiently initialized for secure communications. The method and system utilize well known public key cryptography... |
| 6978369 |
Person-centric account-based digital signature system |
| Dec-20-2005 |
In a method of managing a database of existing accounts (214) for account holders (202), each account holder (202) has multiple accounts with one or more account authorities (212)... |
| 6978025 |
Method and apparatus for managing public keys through a server |
| Dec-20-2005 |
One embodiment of the present invention provides a system for managing public keys through a server that stores associations between public keys and email addresses. This system operates by receiving a... |
| 6970566 |
Network system and method for secure communication service |
| Nov-29-2005 |
A network system providing secure service facility has a central control & management equipment to enable unified key management. The network includes a plurality of switching equipment and central control... |
| 6959390 |
Data processing system and method for maintaining secure user private keys in non-secure storage |
| Oct-25-2005 |
A data processing system and method are disclosed for maintaining secure user private keys in a non-secure storage device. A master key pair is established for the system. The master key pair includes... |
| 6959381 |
Central key authority (CKA) database for user accounts in ABDS system |
| Oct-25-2005 |
A Central Key Authority (CKA) database includes PuK-linked account information of users, wherein the PuK-linked account information maintained in the database for each user includes, (a) a public key of... |
| 6957336 |
Establishing initial PuK-linked account database |
| Oct-18-2005 |
An initial Puk-linked account database is established by (a) maintaining the database in a secure environment, (b) recording in the database for each one of a plurality of devices manufactured in the secure... |
| 6956950 |
Computer readable medium having a private key encryption program |
| Oct-18-2005 |
A digital wallet stores an cryptographically camouflaged access-controlled datum, e.g., a private key encrypted under the user's PIN. Entry of the correct PIN will correctly decrypt the stored key. Entry... |
| 6950940 |
ABDS method utilizing security information in authenticating entity access |
| Sep-27-2005 |
Authenticating an entity for access to a controlled resource by an access authentication component for the controlled resource includes the steps of: the requesting entity initially opening a security... |
| 6941457 |
Establishing a new shared secret key over a broadcast channel for a multicast group based on an old shared secret key |
| Sep-6-2005 |
An optimized approach for arriving at a shared secret key in a dynamically changing multicast or broadcast group environment is disclosed. In one aspect of the invention, a method is provided for communicating... |
| 6941454 |
System and method of sending and receiving secure data with a shared key |
| Sep-6-2005 |
A server computer sends and receives secure data provided by authorized users. The data is secured by encrypting and decrypting the data with a key that is shared between the users and the server computer.... |
| 6940980 |
High security cryptosystem |
| Sep-6-2005 |
A network device represents a user having a predefined associated password, a predefined associated symmetric crypto-key and a predefined associated asymmetric crypto-key, including a first private key... |
| 6938156 |
ABDS system and verification status for authenticating entity access |
| Aug-30-2005 |
A system in which a requesting entity seeking access to a controlled resource is authenticated by an access authentication component includes the requesting entity initially opening a security account... |
| 6934392 |
Split-key key-agreement protocol |
| Aug-23-2005 |
This invention relates to a method for generating a shared secret value between entities in a data communication system, one or more of the entities having a plurality of members for participation in the... |
| 6928167 |
Method for managing public key |
| Aug-9-2005 |
In a network having hierarchical domain names and a DNS server for managing the correspondence between the domain name and the address located at each hierarchy, each DNS server provides a module for managing... |
| 6925182 |
Administration and utilization of private keys in a networked environment |
| Aug-2-2005 |
The private and public keys of users, as encrypted with a symmetric algorithm by using individual user identifying keys are stored at a network server, indexed or addressable by user ID, and are sent to... |
| 6915430 |
Reliably identifying information of device generating digital signatures |
| Jul-5-2005 |
Information of a device that generates digital signatures is reliably identified by (a) for each of a plurality of devices manufactured in an environment, (i) creating a public-private key pair within... |
| 6892302 |
Incorporating security certificate during manufacture of device generating digital signatures |
| May-10-2005 |
A method of providing for reliably identifying a Security Profile of a device that generates digital signatures includes (a) for each of a plurality of devices manufactured in a secure environment, recording... |
| 6891953 |
Method and system for binding enhanced software features to a persona |
| May-10-2005 |
A server architecture for a digital rights management system that distributes and protects rights in content. The server architecture includes a retail site which sells content items to consumers, a fulfillment... |
| 6891958 |
Asymmetric spread-spectrum watermarking systems and methods of use |
| May-10-2005 |
Described herein is an audio watermarking technology for detecting watermarks in audio signals, such as a music clip. The watermark identifies the content producer, providing a signature that is embedded... |
| 6868160 |
System and method for providing secure sharing of electronic data |
| Mar-15-2005 |
A system and method for secure sharing of electronic information uses public key encryption in which a key generator algorithmically generates public-private key pairs without requiring storage, maintenance,... |
| 6854056 |
Method and system for coupling an X.509 digital certificate with a host identity |
| Feb-8-2005 |
A method or system is presented for coupling identities through the use of digital certificates, thereby allowing a client to be authenticated for a variety of services without those services having to... |
| 6851049 |
Method and apparatus for facilitating secure anonymous email recipients |
| Feb-1-2005 |
One embodiment of the present invention provides a system that facilitates secure transmission of an email message to anonymous recipients without divulging the identities of the anonymous recipients.... |
| 6845160 |
Apparatus and method for depositing encryption keys |
| Jan-18-2005 |
An encryption key depositing apparatus comprising a unit that generates an encryption key for a user; and a unit that starts a process in response to the generation of the encryption key, the process allowing... |
| 6839437 |
Method and apparatus for managing keys for cryptographic operations |
| Jan-4-2005 |
A cryptographic system for use in a data processing system. The system includes a security layer and a plurality of cryptographic routines, wherein the plurality of cryptographic routines are accessed... |
| 6834110 |
Multi-tier digital TV programming for content distribution |
| Dec-21-2004 |
A method of securely providing data to a user's system over a broadcast infrastructure. The method comprising the steps of: encrypting the data using a first encrypting key; encrypting a first decrypting... |
| 6822552 |
Key and lock device |
| Nov-23-2004 |
A key and lock device comprises a key and a standalone lock. The key has an electronic circuitry with a first memory and a contact. The lock has electronic circuitry with a memory, and a contact arranged... |
| 6820199 |
Sending electronic transaction message, digital signature derived therefrom, and sender identity information in AADS system |
| Nov-16-2004 |
In a system for performing an action regarding an account in response to an electronic communication received from a sender by a receiver, wherein the electronic communication includes sender identity... |
| 6807534 |
System and method for managing copyrighted electronic media |
| Oct-19-2004 |
Copyrighted electronic media are packaged in a secure electronic format, and registered on associated registration server, which serves to provide on-line licensing and copyright management for that media.... |
| 6789189 |
Managing account database in ABDS system |
| Sep-7-2004 |
A method of managing accounts in a database in an ABDS system includes recording information pertaining to each of the accounts in the database, (b) assigning a respective unique identifier to each account... |
| 6751732 |
Method and system for secure delivery and printing of documents via a network device |
| Jun-15-2004 |
A system and method for providing secure, on-demand printing of documents delivered to a networked printing device is disclosed. A user logs onto a networked document delivery system using a mobile device... |
| 6738899 |
Method for publishing certification information certified by a plurality of authorities and apparatus and portable data storage media used to practice said method |
| May-18-2004 |
A method for certifying the public key of a user wishing to communicate using a public key encryption system by a plurality of certifying authorities. A plurality of certifying stations and a user station... |
| 6738478 |
Power signature attack resistant cryptography |
| May-18-2004 |
This invention provides a method of computing a multiple k of a point P on an elliptic curve defined over a field, the method including the steps of representing the number k as binary vector k.sub.1,... |
