Assignee

BULL CP8

FR46 patents

Top patents by PatentIndex Score

US5825875AOct 20, 1998

Process for loading a protected storage zone of an information processing device, and associated device

BULL CP8191 citations99

US5479509ADec 26, 1995

Method for signature of an information processing file, and apparatus for implementing it

BULL CP8318 citations99

US4795893AJan 3, 1989

Security device prohibiting the function of an electronic data processing unit after a first cutoff of its electrical power

BULL CP8198 citations99

US5944833AAug 31, 1999

Integrated circuit and method for decorrelating an instruction sequence of a program

BULL CP8106 citations98

US5867577AFeb 2, 1999

Method and apparatus for authenticating a data carrier intended to enable a transaction or access to a service or a location, and corresponding carrier

BULL CP8201 citations98

US5566323AOct 15, 1996

Data processing system including programming voltage inhibitor for an electrically erasable reprogrammable nonvolatile memory

BULL CP8136 citations98

US5533126AJul 2, 1996

Key protection device for smart cards

BULL CP8361 citations98

US5528231AJun 18, 1996

Method for the authentication of a portable object by an offline terminal, and apparatus for implementing the process

BULL CP8190 citations98

US4907270AMar 6, 1990

Method for certifying the authenticity of a datum exchanged between two devices connected locally or remotely by a transmission line

BULL CP8201 citations98

US4907272AMar 6, 1990

Method for authenticating an external authorizing datum by a portable object, such as a memory card

BULL CP8193 citations98

US6658566B1Dec 2, 2003

Process for storage and use of sensitive information in a security module and the associated security module

BULL CP8114 citations97

US5442645AAug 15, 1995

Method for checking the integrity of a program or data, and apparatus for implementing this method

BULL CP8294 citations97

US4825052AApr 25, 1989

Method and apparatus for certifying services obtained using a portable carrier such as a memory card

BULL CP8274 citations97

US6751671B1Jun 15, 2004

Method of communication between a user station and a network, in particular such as internet, and implementing architecture

BULL CP861 citations95

US6658569B1Dec 2, 2003

Secret key cryptographic process for protecting a computer system against attacks by physical analysis

BULL CP863 citations95

US5796835AAug 18, 1998

Method and system for writing information in a data carrier making it possible to later certify the originality of this information

BULL CP8102 citations94

US6839849B1Jan 4, 2005

Smart integrated circuit

BULL CP862 citations93

US5434999AJul 18, 1995

Safeguarded remote loading of service programs by authorizing loading in protected memory zones in a terminal

BULL CP8162 citations93

US6735627B2May 11, 2004

System and method of smart card for managing transmissions of multimedia data via an internet-type network, in particular telephone or videophone data, between subscriber systems

BULL CP834 citations92

US6568600B1May 27, 2003

Chip card equipped with a loop antenna, and associated micromodule

BULL CP8176 citations92

US6111952AAug 29, 2000

Asymmetrical cryptographic communication method and portable object therefore

BULL CP820 citations92

US5815083ASep 29, 1998

Process for entry of a confidential piece of information and associated terminal

BULL CP843 citations92

US5790675AAug 4, 1998

Cryptographic communication process

BULL CP829 citations92

US5365466ANov 15, 1994

Method for generating a random number in a system with portable electronic objects, and system for implementing the method

BULL CP825 citations92

US5341421AAug 23, 1994

Security device, including a memory and/or a microcomputer for data processing machines

BULL CP844 citations92

US5177790AJan 5, 1993

Method for generating a random number in a data processing system/and system for implementing the method

BULL CP840 citations92

US5153581AOct 6, 1992

Method for authentication by an external medium of a portable object such as a memory card coupled to this medium

BULL CP849 citations92

US4980802ADec 25, 1990

Flexible printed circuit

BULL CP853 citations92

US6839756B1Jan 4, 2005

On board system comprising network interface means, and method for activating applications located in said on-board system

BULL CP835 citations91

US6657956B1Dec 2, 2003

Method enabling secure access by a station to at least one server, and device using same

BULL CP865 citations91

US6567539B1May 20, 2003

Method for producing an image using a portable object

BULL CP826 citations88

US5097117AMar 17, 1992

Electronic microcircuit card and method for its manufacture

BULL CP829 citations88

US6687800B1Feb 3, 2004

Chip card comprising means and method for managing a virtual memory and associated communication method

BULL CP819 citations85

US6536034B1Mar 18, 2003

Method for modifying code sequences and related device

BULL CP825 citations85

US6253163B1Jun 26, 2001

Portable object reader terminal and process for self-diagnosis and supervision of same

BULL CP822 citations85

US6651881B1Nov 25, 2003

Card, in particular chip card, reading device

BULL CP824 citations80

US5729609AMar 17, 1998

Method for producing a common key in two devices, in order to implement a common cryptographic procedure, and associated apparatus

BULL CP813 citations71

US6810521B1Oct 26, 2004

Protocol for internal exchange of data between applications of a portable multi-application object and corresponding portable multi-application object

BULL CP819 citations70

US5889272AMar 30, 1999

Coupler for managing communication between a portable data medium and a data exchange device, and data exchange device therefor

BULL CP810 citations67

US6505144B2Jan 7, 2003

Portable object reader terminal, portable object, and process for self-diagnosis and supervision of same

BULL CP88 citations66

US6472733B1Oct 29, 2002

Process for secure comparison of two storage registers, and security module implementing this process

BULL CP84 citations56

US6422470B1Jul 23, 2002

Process for secure processing of a sensitive logical element in a storage register, and security module implementing this process

BULL CP84 citations56

US6203330B1Mar 20, 2001

Method for communicating with a portable data medium

BULL CP83 citations45

BULL CP8

Top patents by PatentIndex Score

Process for loading a protected storage zone of an information processing device, and associated device

Method for signature of an information processing file, and apparatus for implementing it

Security device prohibiting the function of an electronic data processing unit after a first cutoff of its electrical power

Integrated circuit and method for decorrelating an instruction sequence of a program

Method and apparatus for authenticating a data carrier intended to enable a transaction or access to a service or a location, and corresponding carrier

Data processing system including programming voltage inhibitor for an electrically erasable reprogrammable nonvolatile memory

Key protection device for smart cards

Method for the authentication of a portable object by an offline terminal, and apparatus for implementing the process

Method for certifying the authenticity of a datum exchanged between two devices connected locally or remotely by a transmission line

Method for authenticating an external authorizing datum by a portable object, such as a memory card

Process for storage and use of sensitive information in a security module and the associated security module

Method for checking the integrity of a program or data, and apparatus for implementing this method

Method and apparatus for certifying services obtained using a portable carrier such as a memory card

Method of communication between a user station and a network, in particular such as internet, and implementing architecture

Secret key cryptographic process for protecting a computer system against attacks by physical analysis

Method and system for writing information in a data carrier making it possible to later certify the originality of this information

Smart integrated circuit

Safeguarded remote loading of service programs by authorizing loading in protected memory zones in a terminal

System and method of smart card for managing transmissions of multimedia data via an internet-type network, in particular telephone or videophone data, between subscriber systems

Chip card equipped with a loop antenna, and associated micromodule

Asymmetrical cryptographic communication method and portable object therefore

Process for entry of a confidential piece of information and associated terminal

Cryptographic communication process

Method for generating a random number in a system with portable electronic objects, and system for implementing the method

Security device, including a memory and/or a microcomputer for data processing machines

Method for generating a random number in a data processing system/and system for implementing the method

Method for authentication by an external medium of a portable object such as a memory card coupled to this medium

Flexible printed circuit

On board system comprising network interface means, and method for activating applications located in said on-board system

Method enabling secure access by a station to at least one server, and device using same

Method for producing an image using a portable object

Electronic microcircuit card and method for its manufacture

Chip card comprising means and method for managing a virtual memory and associated communication method

Method for modifying code sequences and related device

Portable object reader terminal and process for self-diagnosis and supervision of same

Card, in particular chip card, reading device

Method for producing a common key in two devices, in order to implement a common cryptographic procedure, and associated apparatus

Protocol for internal exchange of data between applications of a portable multi-application object and corresponding portable multi-application object

Coupler for managing communication between a portable data medium and a data exchange device, and data exchange device therefor

Portable object reader terminal, portable object, and process for self-diagnosis and supervision of same

Electronic circuit support comprising tear resistant means

Method and device enabling a fixed program to be developed

Device for communicating with a portable data medium

Process for secure comparison of two storage registers, and security module implementing this process

Process for secure processing of a sensitive logical element in a storage register, and security module implementing this process

Method for communicating with a portable data medium