| 5206906 |
Video scrambling system |
| Apr-27-1993 |
At least one new video signal is created by using portions taken from each signal of a plurality of original video signals to create at least one new video signal, with the sequencing of the assignments... |
| 6105134 |
Verification of the source of program information in a conditional access system |
| Aug-15-2000 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units... |
| 7035442 |
User authenticating system and method using one-time fingerprint template |
| Apr-25-2006 |
This invention relates to a user authenticating system and a method using aone-time fingerprint template. The system and the method according to the invention are improvements of the conventional user... |
| 5825889 |
Use of duplex cipher algorithms for satellite channels with delay |
| Oct-20-1998 |
An apparatus and method for ciphering traffic exachanged in both directions between a satellite/cellular telephone and a ground station networkusing an orbitial satellite. A buffer memory is provided at... |
| 6175921 |
Tamper-proof devices for unique identification |
| Jan-16-2001 |
A system for open electronic commerce having a customer trusted agent securely communicating with a first money module, and a merchant trusted agent securely communicating with a second money module. Both... |
| 6895091 |
Systems and methods for encryption key archival and auditing in a quantum-cryptographic communications network |
| May-17-2005 |
A system archives encryption keys used for encrypting information in a network (105). The system includes a plurality of nodes configured to collect one or more encryption keys generated at each node and... |
| 6198824 |
System for providing secure remote command execution network |
| Mar-6-2001 |
A method and apparatus is disclosed for enhancing the security of a message sent through a network server from a client computer to a destination server. A secure connection for receiving and transmitting... |
| 6223288 |
System for persistently encrypting critical software file to prevent installation of software program on unauthorized computers |
| Apr-24-2001 |
A data encryption/decryption system is provided which encrypts a critical file to a software program using an embedded executable. The executable programs a user computer to prompt a user to purchase a... |
| 6052467 |
System for ensuring that the blinding of secret-key certificates is restricted, even if the issuing protocol is performed in parallel mode |
| Apr-18-2000 |
A cryptographic method is disclosed that enables the issuer in a secret-key certificate issuing protocol to issue triples consisting of a secret key, a corresponding public key, and a secret-key certificate... |
| 4484025 |
System for enciphering and deciphering data |
| Nov-20-1984 |
A system and method for transmitting enciphered data between first and second terminals over a data transmission channel. The system comprises a transmitter located at the first terminal, a receiver located... |
| 6058193 |
System and method of verifying cryptographic postage evidencing using a fixed key set |
| May-2-2000 |
A method for controlling keys used in the verification of encoded information generated by a transaction evidencing device and printed on a document comprises the steps of generating a plurality of random... |
| 6539479 |
System and method for securely logging onto a remotely located computer |
| Mar-25-2003 |
Prior to a login session, a server computer stores a password verification value v for each of a plurality of authorized users. Each user generates a password verification value v from a secret value x... |
| 5982892 |
System and method for remote authorization for unlocking electronic data |
| Nov-9-1999 |
A system and method for controlling unauthorized access to software distributed to a user by a vendor in which a verification key is generated by a product key generator and either embedded in the software... |
| 6484257 |
System and method for maintaining N number of simultaneous cryptographic sessions using a distributed computing environment |
| Nov-19-2002 |
An N session distributed architecture provides a software solution to the major computational challenges faced with providing secure communication. A registration entity is identified as the session arbitrator... |
| 6532543 |
System and method for installing an auditable secure network |
| Mar-11-2003 |
A system and method for generating and remotely installing a private secure and auditable network is provided. Node identification, link, and application information is input into a template. A generator... |
| 6430292 |
System and method for controlling disclosure time of information |
| Aug-6-2002 |
A key managing system for implementing simultaneous disclosure of information. The invention includes an information transmitting apparatus which transmits a date and time at which secrecy protection of... |
| 5457746 |
System and method for access control for portable data storage media |
| Oct-10-1995 |
The system and method of the present invention provides the support of high density removable media, such as CD-ROM or MO, to be used as a distributed media for storing data where access thereto is securely... |
| 5809140 |
Session key distribution using smart cards |
| Sep-15-1998 |
Methods and apparatus are disclosed for providing secure session key distribution using a smart circuit card or other intelligent device. First and second hosts communicate with each other and with a server... |
| 6510513 |
Security services and policy enforcement for electronic data |
| Jan-21-2003 |
Security services and policy enforcement for electronic data is provided through a series of transactions among a server and clients using electronic security certificates. A first client generates a digest... |
| 6088799 |
Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same |
| Jul-11-2000 |
A process is described in which a user enters ID and password information at a network client computer terminal. This information is combined with an asymmetric key stored in a persistent storage directly... |
| 7020779 |
Secure, distributed e-mail system |
| Mar-28-2006 |
An e-mail handling system, wherein e-mail messages are entered, transported and stored, comprises a central key repository, means for encrypting a message using a key associated with the message, means... |
| 6539480 |
Secure transfer of trust in a computing system |
| Mar-25-2003 |
A computing system having a security module to validate requests to reconfigure a computing system. The computing system includes a persistent store for holding information indicative of the current trusted... |
| 6226750 |
Secure session tracking method and system for client-server environment |
| May-1-2001 |
A method and system for tracking communications in a client-server environment. The method includes the steps of sending a first request from the client to the server over a first connection, sending a... |
| 6807277 |
Secure messaging system with return receipts |
| Oct-19-2004 |
A method and system for electronic messaging in which a sender of an electronic message receives a return receipt, without having to send the message contents to a third party. The sender contacts a server... |
| 6684334 |
Secure establishment of cryptographic keys using persistent key component |
| Jan-27-2004 |
An apparatus and method is disclosed for securely establishing a unique cryptographic key in a first cryptographic device, for example an Automated Teller Machine (ATM). In a preferred embodiment, the... |
| 6834112 |
Secure distribution of private keys to multiple clients |
| Dec-21-2004 |
A private key may be securely distributed to a user of a remote client computer over an insecure channel. The user's private key is transmitted to the client from a remote server in an encrypted format.... |
| 5196840 |
Secure communications system for remotely located computers |
| Mar-23-1993 |
A system for determining when a remote computer user is authorized to communicate with a host computer and to establish a ciphering key to be used for the communications session. A random number is generated... |
| 4182933 |
Secure communication system with remote key setting |
| Jan-8-1980 |
An apparatus for maintaining secure communication between subscribers. A trally located key distribution center, which includes a data processor, is utilized as a source of remotely selected working variables... |
| 5671285 |
Secure communication system |
| Sep-23-1997 |
Encryption/decryption capable terminal units, such as FAX point-of-sale units, on non-secure telecommunications, use public keys for accessing selected target terminals, but make their messages secure... |
| 5680458 |
Root key compromise recovery |
| Oct-21-1997 |
A method of recovering from a compromise of a root key which is the private key of a first public key-private key pair, the method including the steps of electronically sending out an emergency message... |
| 6148084 |
Restrictedly blindable certificates on secret keys |
| Nov-14-2000 |
A method for an issuer party to issue DSA-like secret-key certificates that can be blinded only restrictively. The method includes the step of generating a secret key (x.sub.0,y) and a public key (descr(G.sub.q),... |
| 6567793 |
Remote authorization for unlocking electronic data system and method |
| May-20-2003 |
Controlling unauthorized access to software distributed to a user by a vendor. A verification key is generated by a product key generator and either embedded in the software prior to distribution or packaged... |
| 6678379 |
Quantum key distribution method and apparatus |
| Jan-13-2004 |
A method for testing the reliability of a quantum key distribution apparatus is provided. The method includes the steps of: producing a set of quanta by the sender, the set of quanta comprising first,... |
| 5905799 |
Programmed computer for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem |
| May-18-1999 |
An article of manufacture for improving an RSA cryptosystem, includes computer readable storage medium with computer programming stored thereon. The stored computer programming is configured to be readable... |
| 6711262 |
Procedure for the control of applications stored in a subscriber identity module |
| Mar-23-2004 |
A procedure for the control of applications stored in a user's subscriber identity module (SIM) in a data communication system that includes a data communication network, a terminal device connected to... |
| 6073235 |
Private broadcast communication system and method for private broadcast communication over a wired or wireless network |
| Jun-6-2000 |
A private broadcasting system includes communication terminals which are coupled to both a broadcasting network and point-to-point network. A private broadcasting device included in the broadcasting system... |
| 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... |
| 6775772 |
Piggy-backed key exchange protocol for providing secure low-overhead browser connections from a client to a server using a trusted third party |
| Aug-10-2004 |
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... |
| 5335281 |
Network controller and method |
| Aug-2-1994 |
A method for passing supervisory control from a first station to a second station of a plurality of stations comprises steps of providing a message header in interstation messages in the first station,... |
| 6772335 |
Multimedia coordination system |
| Aug-3-2004 |
In a network, a media coordination system provides secure multimedia communication channels in a collaborative network environment. The media coordination system provides automatic encryption, dynamic... |
| 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... |
| 7039192 |
Methods for data encryption using multiple layer steganography |
| May-2-2006 |
A method for embedding a message within a file may include generating a session key [305] and encrypting the session key with a public key to produce an encrypted session key [310]. The message... |
| 6931128 |
Methods and systems for generating encryption keys using random bit generators |
| Aug-16-2005 |
A security key, such as an encryption key, is generated so as to make it more difficult for eavesdroppers to identify the key. Specifically, a cryptographically secure random number generator generates... |
| 5164988 |
Method to establish and enforce a network cryptographic security policy in a public key cryptosystem |
| Nov-17-1992 |
Device A in a public key cryptographic network will be constrained to continue to faithfully practice a security policy dictated by a network certification center, long after device A's public key PUMa... |
| 6795554 |
Method of transmitting medical information over a network |
| Sep-21-2004 |
A method for transmitting medical information relating to a patient over a network, such as a telecommunication network. The medical information includes both patient identifiable data as well as patient... |
| 5987129 |
Method of sharing cryptokey |
| Nov-16-1999 |
In a center, a Fourier transformation with a weighting function and a center matrix are applied to the identifier of each entity (steps 2-1, 2-2), which is then randomized by one-time pass random number... |
| 5956406 |
Method of setting up secure communications and associated encryption/decryption system |
| Sep-21-1999 |
A method of establishing secure communication between users by means of a public key encryption/decryption system comprises the following steps: a center generates a pair of keys comprising a secret key... |
| 5825300 |
Method of protected distribution of keying and certificate material |
| Oct-20-1998 |
A computer system and a method for the protected distribution of certificate and keying material between a certification authority and at least one entity in the certification authority's domain, including... |
| 5987128 |
Method of effecting communications using common cryptokey |
| Nov-16-1999 |
For effecting cryptographic communications between entities i, j using a common cryptokey, each of the entities i, j generates a common cryptokey by applying an identifier transformation algorithm and... |
| 6337912 |
Method of and system for writing-in key information |
| Jan-8-2002 |
In order to unambiguously allocate a data carrier to an object, key information is written into the data carrier. Before writing-in the key information, secret identification information and open identification... |
