Patents
Sitemap › G06 - Computing; Calculating; Counting › G06F - Electric digital data processing › G06F 21 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
Patents for G06F 21 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity (119,294)
01/1990
01/30/1990US4897819 Memory protection circuit
01/30/1990CA1265245A1 Data security device for protecting stored data
01/30/1990CA1265244A1 Security device for stored sensitive data
01/30/1990CA1265109A1 Encoder/decoder
01/25/1990WO1990000771A1 Data security device
01/16/1990US4894805 Security printer/copier
01/11/1990DE3914239A1 Einrichtung zum schutz von daten Means for protection of data
01/10/1990EP0350005A2 Security system
01/09/1990US4893338 System for conveying information for the reliable authentification of a plurality of documents
01/02/1990US4891838 Computer accessing system
01/02/1990US4891504 Security level identification method for computer based information
12/1989
12/28/1989WO1989012890A1 Process and device for the numeric recording of data, a protected data recording substrate and a device for reading data recorded on such a substrate
12/28/1989WO1989012864A1 Independent computer module system
12/28/1989WO1989012863A1 System and method for the secure handling of encryptor keys
12/20/1989EP0347209A2 Security enclosure
12/20/1989EP0347194A2 Non-volatile semi-conductor memory device
12/19/1989US4888802 System and method for providing for secure encryptor key management
12/19/1989US4888798 Modular software security
12/12/1989US4887239 One-time programmable data security system for programmable logic device
12/05/1989US4885789 Remote trusted path mechanism for telnet
12/05/1989US4885788 IC card
12/05/1989US4885778 Method and apparatus for synchronizing generation of separate, free running, time dependent equipment
12/05/1989US4885775 Information display scheme for subscribers of a subscription television system
11/1989
11/30/1989DE3818132A1 Method of generating a password
11/28/1989US4884211 Numerical control unit file protection system
11/21/1989US4882752 Computer security system
11/21/1989US4882474 Security file system and method for securing data in a portable data carrier
11/14/1989US4881199 Read circuit for reading the state of memory cells
11/14/1989US4881179 Method for providing information security protocols to an electronic calendar
11/08/1989EP0340988A2 A memory card and an apparatus for processing the same
11/07/1989US4879747 Method and system for personal identification
11/07/1989US4879704 Optical disk, optical disk recording and reproducing apparatus and copy preventive method for optical disks
11/07/1989US4879645 Data processing device with high security of stored programs
11/02/1989WO1989010617A1 Security printer/copier
11/02/1989EP0339115A1 Method for the protection of a programme stored on a recording medium
10/1989
10/31/1989CA1262575A1 System for preventing software piracy employing multi- encrypted keys and single decryption circuit modules
10/25/1989EP0338936A1 Hand-held electronic device to be used in conjuction with a screen
10/25/1989EP0338089A1 Apparatus for protecting local memory in a multiprocessor system
10/24/1989US4876717 Adjunct processor for providing computer facility access protection via call transfer
10/11/1989EP0335919A1 System and method for securing integrated circuits from unauthorized copying
10/05/1989DE3810276A1 Method of identifying EDP programs which have been duplicated without authorisation
09/1989
09/27/1989EP0334616A2 Method and system for personal identification
09/26/1989US4870612 Operator console with paired modules including means for ciphering and deciphering messages therebetween based on a mutually known, exclusive internal security code
09/19/1989US4868877 Public key/signature cryptosystem with enhanced digital signature certification
09/19/1989US4868736 Code operated access control system for electronic data store
09/19/1989US4868376 Intelligent portable interactive personal data system
09/13/1989EP0332558A2 A method for providing information security protocols to an electronic calendar
09/13/1989EP0332304A2 Software licensing management system
09/12/1989US4866769 Hardware assist for protecting PC software
09/12/1989US4865321 Memory cartridge and information processor unit using such cartridge
09/06/1989EP0331202A1 Method for using at will the data memory of a microcomputer as a programme memory
09/05/1989US4864616 Cryptographic labeling of electronically stored data
09/05/1989US4864571 Information recording/reproducing apparatus with prioritized read out
09/05/1989US4864542 Memory cartridge having stored data protecting function and memory protecting method
09/05/1989US4864541 Integrated circuit of the logic circuit type comprising an electrically programmable non-volatile memory
09/05/1989US4864494 Software usage authorization system with key for decrypting/re-encrypting/re-transmitting moving target security codes from protected software
08/1989
08/30/1989EP0329681A1 Database usage metering and protection system and method.
08/30/1989CN1035192A License management method and system
08/24/1989WO1989007819A1 Document marking system
08/23/1989EP0329415A2 Expert system for security inspection of a digital computer system in a network environment
08/22/1989US4860351 Tamper-resistant packaging for protection of information stored in electronic circuitry
08/16/1989EP0328289A2 IC card and method of writing its operation program
08/16/1989EP0328232A2 Public key/signature cryptosystem with enhanced digital signature certification
08/16/1989EP0327813A2 Information handling system
08/16/1989EP0327707A2 Nonhierarchical program authorization mechanism
08/15/1989US4858036 Software protection and identification system
08/15/1989US4857914 Access-control apparatus
08/10/1989WO1989007375A1 Cryptographic method and apparatus with electronically redefinable algorithm
08/09/1989EP0326700A2 A trusted path mechanism for virtual terminal environments
08/09/1989EP0326699A2 A remote trusted path mechanism for telnet
08/08/1989US4856062 Gas turbine engine combustor
08/02/1989EP0325777A2 A distributed auditing subsystem for an operating system
08/02/1989EP0325776A2 A trusted path mechanism for an operating system
08/02/1989EP0325598A1 Data processing system security
08/01/1989US4853961 Reliable document authentication system
08/01/1989US4853522 System for permitting access to data field area in IC card for multiple services
07/1989
07/26/1989EP0325506A1 Security system for protecting the programming zones of an IC card
07/25/1989US4851653 Integrated circuit for memorizing and processing information confidentially, including an anti-fraud device
07/18/1989US4849942 Protection device for an erasable and reprogrammable read only memory
07/18/1989US4849927 Method of controlling the operation of security modules
07/11/1989US4847902 Digital computer system for executing encrypted programs
07/11/1989US4847803 Portable electronic device with means for determining whether an externally supplied instruction is executable
07/04/1989US4845715 Method for maintaining data processing system securing
06/1989
06/27/1989US4843571 Office automation systems
06/20/1989US4841133 Data card circuits
06/13/1989US4839506 IC card identification system including pin-check time means
05/1989
05/31/1989EP0178512B1 Mos circuit including an eeprom
05/30/1989US4835682 Computer system for preventing copying of program from a storage medium by modifying the program using a unique key
05/30/1989EP0187763A4 Data processor having module access control.
05/24/1989EP0316805A2 Copy prevention apparatus and method therefor
05/23/1989CA1254666A1 Electronic device constituting an improved fast stable memory
05/18/1989WO1989004520A1 Computer program license management system
05/16/1989US4831648 Method of confirming user in modem communications and its system
05/16/1989US4831245 System for data field area acquisition in IC card for multiple services
05/11/1989DE3736760A1 Method of preventing spreading of computer viruses
05/05/1989WO1989004022A1 Process for verifying the authenticity of a data medium with integrated circuit
05/03/1989EP0314530A1 A key-type soft ware usage control device with memory
05/03/1989EP0313967A1 Authentication method for a data carrier with integrated circuit
05/03/1989EP0172239B1 Solid state key for controlling access to computer software
05/02/1989US4827508 Database usage metering and protection system and method
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