| 6968060 |
Method for verifying the use of public keys generated by an on-board system |
| Nov-22-2005 |
For a set (Lk) of embedded systems, an authorized operator with identifier (OPj) creates a mother public key (KpM) and a mother private key (KsM). The identifier (OPj), the range... |
| 5832086 |
Method for updating a communication unit parameter in a wireless communication system |
| Nov-3-1998 |
In one embodiment of the present invention, an update method preference value (401) is determined as between a group update method and an individual update method for a wireless communication system (100).... |
| 5768380 |
Method for sending a communication unit parameter to a plurality of communication units |
| Jun-16-1998 |
In a wireless communication system (100), a communication unit parameter is sent to a plurality of communication units (105-108) during a first period of time using either a group update method or an individual... |
| 5991399 |
Method for securely distributing a conditional use private key to a trusted entity on a remote system |
| Nov-23-1999 |
Secure distribution of a private key to a user's application program (also called a "trusted player" such as a DVD player or CD-ROM player) with conditional access based on verification of the trusted... |
| 5864667 |
Method for safe communications |
| Jan-26-1999 |
Disclosed is a method for safe distribution of encryption keys including a known public and secret private keys in establishing a secure link between computer users resided at separate location whom have... |
| 6839436 |
Method for providing long-lived broadcast encrypton |
| Jan-4-2005 |
A long-lived broadcast encryption method that adapts to the presence of compromised keys and continues to broadcast securely to privileged sets of users over time. In one aspect, a method for providing... |
| 6996238 |
Method for generating and looking-up transaction keys in communication networks |
| Feb-7-2006 |
Method and apparatus for generating keys for encoding data for transmission, a device identification is accessed and at least one key corresponding to the device identification. Data is encoded using at... |
| 5519778 |
Method for enabling users of a cryptosystem to generate and use a private pair key for enciphering communications between the users |
| May-21-1996 |
The present invention describes a method for enabling users of a cryptosystem to agree on secret keys. In one embodiment, a trusted agent chooses at least one individual key for each user, with at least... |
| 5966443 |
Method for correcting subscriber-based secure call keys |
| Oct-12-1999 |
A key variable correction scheme allows errored encryption key material in mobile and portables radios to be quickly identified and corrected. The errored encryption material can be corrected automatically... |
| 6401203 |
Method for automatic handling of certificate and key-based processes |
| Jun-4-2002 |
A method, system and program for automatic administration and management of a plurality of certificates and/or cryptographic keys. Each key is associated with a set of attributes so that the set of attributes... |
| 6993137 |
Method and system to securely distribute content via a network |
| Jan-31-2006 |
A method and system to distribute encrypted content via a network commences when a content provider generates a set of session keys and encrypts content with the set of session keys. The content provider... |
| 6567917 |
Method and system for providing tamper-resistant executable software |
| May-20-2003 |
Tamper-resistant software is provided by determining an initial value of a specified property for an executable file. The executable file is then encrypted based on the initial value of the specified property.... |
| 6993652 |
Method and system for providing client privacy when requesting content from a public server |
| Jan-31-2006 |
Method and system for providing client privacy on the Internet when the client requests content from a public application server. The method is well-suited to key management protocols that utilize the... |
| 7020287 |
Method and system for key insertion for stored encrypted content |
| Mar-28-2006 |
An encrypted content transport stream is received by a viewer's device and recorded for subsequent playback. During recording, keys in headers of packets of the stream are stripped and placed in sequence... |
| 6021391 |
Method and system for dynamic data encryption |
| Feb-1-2000 |
In a method and system for dynamic data encryption, a source data provider is used to provide a plurality of source data segments, while a segment header generator is employed to generate a plurality of... |
| 5701343 |
Method and system for digital information protection |
| Dec-23-1997 |
A digital information protection scheme using an improved security protocol. In a system in which a user makes an access to a digital information provided by an information center by connecting a computer... |
| 6377692 |
Method and system for controlling key for electronic signature |
| Apr-23-2002 |
Two keys which are updated in the same updating cycle at different times are prepared as signature keys (main key and auxiliary key) for electronic signature, and the updating cycle of each key is divided... |
| 5778065 |
Method and system for changing an authorization password or key in a distributed communication network |
| Jul-7-1998 |
A robust and secure password (or key) change method between a user and an authentication server in a distributed communication network is disclosed. The protocol requires the exchange of only two messages... |
| 6463467 |
Method and apparatus of secure server control of local media via a trigger through a network for instant local access of encrypted data on an internet webpage |
| Oct-8-2002 |
A method of transmitting protected video and/or graphic data over the Internet from a Web site, by encrypting the video and/or graphic data and storing it at a Web site associated with a server, and by... |
| 5862220 |
Method and apparatus for using network address information to improve the performance of network transactions |
| Jan-19-1999 |
An apparatus and method for using network address information to improve the performance and increase the functionality of network transactions. is disclosed. In a client network interface device having... |
| 5491750 |
Method and apparatus for three-party entity authentication and key distribution using message authentication codes |
| Feb-13-1996 |
A method is provided for authenticating communication partners utilizing communication flows which are passed over an insecure communication channel. The method includes a number of method steps. A trusted... |
| 6957185 |
Method and apparatus for the secure identification of the owner of a portable device |
| Oct-18-2005 |
Methods for the secure identification of the owner of a portable device by a service provider, wherein the portable device may be in communication with the service provider over a voice line such as a... |
| 6266420 |
Method and apparatus for secure group communications |
| Jul-24-2001 |
A method for securing group communications with reduced message overhead begins by initiating a secure group communication, where a group communication is secured based on security credentials of the group.... |
| 6694025 |
Method and apparatus for secure distribution of public/private key pairs |
| Feb-17-2004 |
A list of public/private key pairs are stored at a server, wherein the private key is stored in an encrypted form, the encryption being based on a master key. To distribute a public/private key pair to... |
| 5394469 |
Method and apparatus for retrieving secure information from mass storage media |
| Feb-28-1995 |
A personal computer or "host computer" and a Mass storage device are arranged on an SCSI bus. A "decryption controller", in a separate enclosure outside of the host computer, is also arranged on the SCSI... |
| 6304974 |
Method and apparatus for managing trusted certificates |
| Oct-16-2001 |
The present invention provides a system for managing trusted certificates for authenticating communications for clients belonging to an enterprise. The system assembles a list of trusted certificates containing... |
| 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... |
| 6675297 |
Method and apparatus for generating and using a tamper-resistant encryption key |
| Jan-6-2004 |
The present invention increases the difficulty of reverse engineering sensitive information protected by an encryption algorithm by increasing the difficulty associated with tracing the code that generates... |
| 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... |
| 5588060 |
Method and apparatus for a key-management scheme for internet protocols |
| Dec-24-1996 |
A first data processing device (node I) is coupled to a private network which is in turn coupled to the Internet. A second data processing device (node J) is coupled to the same, or to a different network,... |
| 6003136 |
Message control system for managing message response in a kerberos environment |
| Dec-14-1999 |
A Kerberos domain network enables multiple client-terminals to communicate with one or more client-servers and a Kerberos Server. A request for Kerberos service by a requesting client-terminal is managed... |
| 6550011 |
Media content protection utilizing public key cryptography |
| Apr-15-2003 |
A system and method for providing protection of content which may be transmitted over unsecure channels, including storage and transmission in bulk media, transmission over a network such as the Internet,... |
| 5412723 |
Mechanism for keeping a key secret from mobile eavesdroppers |
| May-2-1995 |
A method is provided which allows a set of servers to maintain a set of keys, shared with a client, in the presence of mobile eavesdroppers that occasionally break into servers and learn the entire contents... |
| 6745245 |
Managing access to set-top box objects using television conditional access system |
| Jun-1-2004 |
Methods for using a conditional access system to modify access control information maintained at a set-top box or another client system. The access control information regulates the availability of information... |
| 6199161 |
Management of authentication keys in a mobile communication system |
| Mar-6-2001 |
A method and mobile communication system for managing authentication keys, the system having at least one authentication center, base stations and mobile stations to which subscriber identity modules may... |
| 5243652 |
Location-sensitive remote database access control |
| Sep-7-1993 |
A communication system includes a remote mobile node which acquires time-correlated data of its actual position from a global positional system (GPS), and securely transmits the information as a position... |
| 6847719 |
Limiting receiver access to secure read-only communications over a network by preventing access to source-formatted plaintext |
| Jan-25-2005 |
Receiver access to a secure communication is determined by the sender. The sender defines an access parameter, such as number of times a message can be decrypted, expiration time of message, or some contingent... |
| 6772337 |
Light weight security for parallel access to multiple mirror sites |
| Aug-3-2004 |
A system and method for providing secured file dispersal and access control protocols based on combinatorial techniques to reduce the security overhead associated with information retrieval systems employing... |
| 6539093 |
Key ring organizer for an electronic business using public key infrastructure |
| Mar-25-2003 |
Users and security aware applications are able to request operations on and manipulate role based digital certificates (and their corresponding private keys) distributed among multiple key rings through... |
| 6185308 |
Key recovery system |
| Feb-6-2001 |
A key recovery information distribution device is provided between a recoverer device and a key recovery device, recovers a data key for the recoverer device, and reduces the load of the recoverer device.... |
| 6215877 |
Key management server, chat system terminal unit, chat system and recording medium |
| Apr-10-2001 |
A key management server is arranged at the same position as a terminal unit as viewed from a chat server. A channel secret key unique to each channel is generated by the key management server and distributed... |
| 6041408 |
Key distribution method and system in secure broadcast communication |
| Mar-21-2000 |
A key distribution method and system are disclosed in which a sender and receivers share a common key information for performing a secure broadcast communication. By use of a center side apparatus, a center... |
| 6892308 |
Internet protocol telephony security architecture |
| May-10-2005 |
A system is provided in which a client/server/network can implement a key management session when the server initiates the key management session utilizing a nonce. The nonce allows a wakeup or trigger... |
| 6002694 |
Interactive chargeable communication system with billing system therefor |
| Dec-14-1999 |
A billing system for use in a chargeable program broadcasting is capable of reliably billing a subscriber for program reception while preventing unauthorized reception thereof. A receiving terminal includes... |
| 6978376 |
Information security architecture for encrypting documents for remote access while maintaining access control |
| Dec-20-2005 |
A method of controlling distribution of a segment of encrypted electronic information is presented. A key server receives a protected copy of a decryption key for the segment. The segment is retrieved... |
| 6728379 |
Information processor and information processing method |
| Apr-27-2004 |
An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption... |
| 6792530 |
Implicit certificate scheme |
| Sep-14-2004 |
A method of generating a public key in a secure digital communication system, having at least one trusted entity CA and subscriber entities A. For each entity A, the trusted entity selects a unique identity... |
| 5696823 |
High-bandwidth encryption system with low-bandwidth cryptographic modules |
| Dec-9-1997 |
A cryptographic system enables a secure, but low-bandwidth, cryptographic module, such as a smartcard or PCMCIA device, to serve as a high-bandwidth secret-key encryption decryption engine which uses the... |
| 6530020 |
Group oriented public key encryption and key management system |
| Mar-4-2003 |
In a public key encryption system where an individual is used as a unit, an idea of "group" is newly introduced. Then, both an encryption process operation of a plain text by an arbitrary member belonging... |
| 6038322 |
Group key distribution |
| Mar-14-2000 |
A method for distributing a secret key from a key holder H to intended group members M. The method assumes that during the distribution process each party, a group member M and the key holder H, can decrypt... |
