| 7010685 |
Method and apparatus for storing scrambled digital programs by filtering product identifier |
| Mar-7-2006 |
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access requirements.... |
| 6976168 |
System and method for adaptive cryptographically synchronized authentication |
| Dec-13-2005 |
A system and method for implementing adaptive cryptographically synchronized authentication is disclosed. The authentication system includes a controller that dynamically selects one of a plurality of... |
| 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... |
| 6950522 |
Encryption key updating for multiple site automated login |
| Sep-27-2005 |
A version number is associated with an encrypted key executable to allow real time updating of keys for a system which facilitates users signing on to multiple websites on different domains using an encrypted... |
| 6940976 |
Generating user-dependent RSA keys |
| Sep-6-2005 |
Methods, systems and computer program products are provided which generate an RSA cryptographic value by obtaining user specific information about a user and determining a user specific range of values... |
| 6931132 |
Secure wireless local or metropolitan area network and related methods |
| Aug-16-2005 |
A secure wireless local or metropolitan area network and data communications device therefor are provided, where the device transmits plain text in an encrypted message including cipher text and an initialization... |
| 6922774 |
Device for and method of secure computing using virtual machines |
| Jul-26-2005 |
A device for and method of secure computing that includes a computer system having a processor; an operating-system software program loaded onto the processor; a type-II virtual machine monitor software... |
| 6915434 |
Electronic data storage apparatus with key management function and electronic data storage method |
| Jul-5-2005 |
A storage apparatus includes a key management unit for managing an individual key unique to the apparatus and a common key shared with other storage apparatuses, and an encryption unit for performing an... |
| 6859537 |
Non-volatile memory for use with an encryption device |
| Feb-22-2005 |
A Non-Volatile Memory circuit operating as an interface between a key loader and an encryption device. The Non-Volatile Memory circuit includes a microcontroller which stores a crypto key and checkword... |
| 6851059 |
Method and system for choosing a queue protection key that is tamper-proof from an application |
| Feb-1-2005 |
A method for enabling a Q_key that is tamper proof from applications on a distributed computer system to protect selected network operations is provided. Applications and an operating system (OS) execute... |
| 6816970 |
Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same |
| Nov-9-2004 |
A multi-stage login procedure and system involves a first stage in which a login ID and a public key (encrypted) is transmitted from a client computer to a server computer and a key-exchange key (encrypted)... |
| 6813358 |
Method and system for timed-release cryptosystems |
| Nov-2-2004 |
A method and system are provided for timed-release cryptography. A sender encrypts data in a timed-release fashion such that a receiver based on information exchanged with a server decrypts the encrypted... |
| 6775382 |
Method and apparatus for recovering encryption session keys |
| Aug-10-2004 |
A method and apparatus allows a session key for a encrypted message to be recovered even if the recipient loses or forgets his private key. A session key encrypted using the public key of a party other... |
| 6754349 |
Cryptographic key, or other secret material, recovery |
| Jun-22-2004 |
Secret material, such as a cryptographic key, that is needed for operation of a computer system (4a), can be stored under password protection on a storage medium for insertion into the computer system... |
| 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... |
| 6542608 |
Cryptographic key split combiner |
| Apr-1-2003 |
A cryptographic key split combiner, which includes a number of key split generators for generating cryptographic key splits and a key split randomizer for randomizing the cryptographic key splits to produce... |
| 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... |
| 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... |
| 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... |
| 6397307 |
Method and system for mirroring and archiving mass storage |
| May-28-2002 |
A method and system for mirroring and archiving mass storage. A primary mass storage and a secondary mass storage are synchronized to contain the same data. Thereafter, a primary system tracks changes... |
| 6370249 |
Method and apparatus for public key management |
| Apr-9-2002 |
A method and apparatus for public key management is accomplished when an associated authority provides, from time to time, a public key of at least one of a plurality of certificate authorities to a client.... |
| 6301660 |
Computer system for protecting a file and a method for protecting a file |
| Oct-9-2001 |
A computer system is provided having a protection mechanism for protecting the contents of a file. The protection mechanism has at least one Viewer program, at least one challenge associated with the Viewer... |
| 6223286 |
Multicast message transmission device and message receiving protocol device for realizing fair message delivery time for multicast message |
| Apr-24-2001 |
A multicast message transmission device and a message receiving protocol device for guaranteeing a fair message delivery time for a multicast message. At the receiving protocol device, a release time of... |
| 6219422 |
Data transmitting apparatus, receiving apparatus, and data transmission and reception system |
| Apr-17-2001 |
Video and audio data of a plurality of received programs and a common information ECM are recorded to a recording medium. A recording position of the program is written on a management table. When reproducing... |
| 6212634 |
Certifying authorization in computer networks |
| Apr-3-2001 |
A system for certifying authorizations includes an authorizing computer and an authorized computer interconnected by a computer network. The authorizing computer creates a public key pair comprising a... |
| 6192130 |
Information security subscriber trust authority transfer system with private key history transfer |
| Feb-20-2001 |
A first trusted authority, such as an originating certification authority, that stores key history data, such as private decryption keys for one or more subscribers, includes a key history exportation... |
| 6181795 |
Portable cryptographic key |
| Jan-30-2001 |
A method, system, and computer program are disclosed to transport an encrypted key across multiple, diverse systems which provides the relevant and necessary information to guarantee a successful decryption... |
| 6111950 |
Method, apparatus and medium for delivering a processing application linked to data to be processed |
| Aug-29-2000 |
An apparatus and method that stores image data on a disk along with an application program that operates on those images. The application program is limited to interacting with only the images on the disk.... |
| 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... |
| 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... |
| 5745572 |
Cryptographic key management |
| Apr-28-1998 |
A data processing system includes a number of applications, each of which has a cryptographic support facility (CSF) for securely managing cryptographic keys and performing cryptographic operations on... |
| 5604802 |
Transaction processing system |
| Feb-18-1997 |
A transaction processing system comprises at least one transaction terminal (10, 11, 12) having means to receive characteristic data from a user, which characteristic data is required to generate a characteristic... |
| 5555309 |
Cryptographic key management apparatus and methods |
| Sep-10-1996 |
The present invention provides for a cryptographic key management method and apparatus in which the cryptographic keys are provided as vector keys in that they comprise a key value and control information... |
| 5432849 |
Secure cryptographic operations using control vectors generated inside a cryptographic facility |
| Jul-11-1995 |
The invention described herein suggests methods of cryptographic key management based on control vectors in which the control vectors are generated or derived internal to a cryptographic facility implementing... |
| 5301231 |
User defined function facility |
| Apr-5-1994 |
In a cryptographic module, a User Defined Function (UDF) facility is provided which provides users with the capability of defining and creating custom functions to meet their cryptographic processing needs.... |
| 5301232 |
Method and apparatus for over-the-air programming of communication devices |
| Apr-5-1994 |
In a communication system (300), a controller interface (302) provides for monitoring of channel activity in order to determine communication devices (400) which are communicating using old encryption... |
| 5265164 |
Cryptographic facility environment backup/restore and replication in a public key cryptosystem |
| Nov-23-1993 |
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... |
| 5214698 |
Method and apparatus for validating entry of cryptographic keys |
| May-25-1993 |
A cryptographic facility implements a multiple key part import procedure. The installation manager can verify that a key part has been correctly entered and has not been compromised. The security requirement... |
| 5200999 |
Public key cryptosystem key management based on control vectors |
| Apr-6-1993 |
A data processing system, method and program are disclosed, for managing a public key cryptographic system. The method includes the steps of generating a first public key and a first private key as a first... |
| 5177791 |
Secure translation of usage-control values for cryptographic keys |
| Jan-5-1993 |
A working key of a certain key type is to be transmitted from a first system (having a first usage-control value associated with keys of the certain type) and a second system (having a second usage-control... |
| 5142578 |
Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors |
| Aug-25-1992 |
The patent describes a method and apparatus for securely distributing an initial Data Encryption Algorithm (DEA) key-encrypting key by encrypting a key record (consisting of the key-encrypting key and... |
| 5103478 |
Secure management of keys using control vectors with multi-path checking |
| Apr-7-1992 |
A requested cryptographic function is validated for performance in conjunction with a cryptographic key, by inputting a first portion of an associated control vector into a first control vector checker,... |
| 5073934 |
Method and apparatus for controlling the use of a public key, based on the level of import integrity for the key |
| Dec-17-1991 |
A method and apparatus in a public crypto system, control the use of a public key, based on the level of import integrity for the public key. The method and apparatus generate a control vector associated... |
| 5007089 |
Secure key management using programable control vector checking |
| Apr-9-1991 |
The invention includes a control vector checking code respository located either within the same system as the crytographic facility or alternately remotely from the system containing the cryptographic... |
| 4993069 |
Secure key management using control vector translation |
| Feb-12-1991 |
A cryptographic system and method is provided which accepts a key K encrypted under a key formed by exclusive-ORing a key-encrypting key KK with a first control vector C5 and outputs the same key K encrypted... |
| 4941176 |
Secure management of keys using control vectors |
| Jul-10-1990 |
The invention is an apparatus and method for validating that key management functions requested for a cryptographic key by the program have been authorized by the originator of the key. The invention includes... |
| 4924514 |
Personal identification number processing using control vectors |
| May-8-1990 |
Cryptographic PIN processing is achieved in an improved manner by associating control vectors with the PIN generating (verification) keys and PIN encrypting keys which provide authorization for the uses... |
| 4924515 |
Secure management of keys using extended control vectors |
| May-8-1990 |
A method and apparatus are disclosed for use in a data processing system which executes a program which outputs cryptographic service requests for operations with cryptographic keys which are associated... |
| 4918728 |
Data cryptography operations using control vectors |
| Apr-17-1990 |
Data cryptography is achieved in an improved manner by associating with the data cryptography key, a control vector which provides the authorization for the uses of the key intended by the originator of... |
| 4850017 |
Controlled use of cryptographic keys via generating station established control values |
| Jul-18-1989 |
A method for controlling the use of a cryptographic key at a using station by a generating station in a network of generating and using stations is disclosed. A control value specifying the use of the... |
