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Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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| Number | Title | Issue Date |
| 5663896 | Broadcast key distribution apparatus and method using Chinese Remainder A communication system utilizing low bandwidth requirements for transmitting an encoded value formulated using the Chinese Remainder procedure to receivers having a private key. The system offers the advantages of low bandwidth transmission of single stan... | 09/02/1997 |
| 5590200 | Apparatus and method for securing communication systems A hacking prevention system and method wherein the descrambler receives a data stream including a series of authorization packets and a series of corresponding offset values. A random number is generated in the descrambler. Using this random number, a key... | 12/31/1996 |
| 5588059 | Computer system and method for secure remote communication sessions A computer system includes a Key Certification Agency (KCA) (12), a host computer (16), and a number of remote terminals (14). The KCA (12) uses incompatible encryption processes (96, 98) to encrypt session control data and to store the data as various me... | 12/24/1996 |
| 5588060 | Method and apparatus for a key-management scheme for internet protocols 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, which is also coupled to the Internet, such that ... | 12/24/1996 |
| 5568551 | Data management method and system thereof To enable management by a center of data transferred to a user terminal from the center, an ISDN, which has a call connecting means which forms a signal channel before forming a data channel between a user terminal and center and enable user to user trans... | 10/22/1996 |
| 5519778 | Method for enabling users of a cryptosystem to generate and use a private pair key for enciphering communications between the users 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 a portion of such individual key being secret. At le... | 05/21/1996 |
| 5491750 | Method and apparatus for three-party entity authentication and key distribution using message authentication codes 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 intermediary is provided which is capable of comm... | 02/13/1996 |
| 5457746 | System and method for access control for portable data storage media 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 restricted. Through this system and method, the ... | 10/10/1995 |
| 5412723 | Mechanism for keeping a key secret from mobile eavesdroppers 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 of their memories. Static and dynamic schemes ma... | 05/02/1995 |
| 5400403 | Abuse-resistant object distribution system and method Encrypted data objects are distributed via a broadcast communication channel or media. Relatively large access indicia may also be pre-distributed to any potential data object users and/or purchasers via an access communication channel or media. Subsequen... | 03/21/1995 |
| 5394469 | Method and apparatus for retrieving secure information from mass storage media 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 bus. This controller is addressable by the host com... | 02/28/1995 |
| 5335281 | Network controller and method 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, transmitting the interstation message from the first ... | 08/02/1994 |
| 5265164 | Cryptographic facility environment backup/restore and replication in a public key cryptosystem A computer apparatus, program and method function in a data processing system to replicate a cryptographic facility. The system includes a first cryptographic facility containing a portable part which personalizes the first cryptographic facility. The sys... | 11/23/1993 |
| 5245658 | Domain-based encryption A domain-based encryption system which uses identical domains known only to the parties involved in the communication. An encrypted message is sent between communicating parties which consists of a stream of coordinates which locate specific points in the... | 09/14/1993 |
| 5243652 | Location-sensitive remote database access control 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 history to a central facility. The mobile node incl... | 09/07/1993 |
| 5206906 | Video scrambling system 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 of the particular portions from any of the original ... | 04/27/1993 |
| 5196840 | Secure communications system for remotely located computers 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 at the host computer, ciphered under the user's... | 03/23/1993 |
| 5164988 | Method to establish and enforce a network cryptographic security policy in a public key cryptosystem 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 has been certified. If device A alters its operations... | 11/17/1992 |
| 5144665 | Cryptographic communication method and system A cryptographic communication method and system for performing cryptographic communication between a host computer and a given one of plural terminals connected to the host computer by way of a communication network by using a data key designated by the g... | 09/01/1992 |
| 5029208 | Cipher-key distribution system A cipher-key distribution system used in a one-way communication from a first party to a second party. The cipher-key distribution system is composed of a first subsystem, a second subsystem, and a common file which stores information publically accessibl... | 07/02/1991 |
| 4984271 | Cipher system with closed cipher procedure A cipher system in a computer network having a host computer and terminal equipments connected by communication lines. A terminal equipment cipher process program memory area is provided in a volatile memory area of a storage of a terminal equipment which... | 01/08/1991 |
| 4961221 | Communication method and system with encryption of information An information encryption method particularly intended for a communication system in which bidirectional multiplexed communications of the point-to-multipoint type are derived between a switching exchange and plural terminal stations. The switching exchan... | 10/02/1990 |
| 4658292 | Enciphering key distribution system for subscription TV broadcast or catv system An enciphering key distribution system comprises a transmitter having an address generator for generating the addresses of those subscribers to which a first enciphered TV signal is to be distributed. An enciphering generator generates a second encipherin... | 04/14/1987 |
| 4484025 | System for enciphering and deciphering data 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 at the second terminal and cipher computers loca... | 11/20/1984 |
| 4182933 | Secure communication system with remote key setting 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 which are utilized to enable secure communica... | 01/08/1980 |
