Method for cancelling a transaction of an electronic payment mea

Method for certifying public keys in a digital signature scheme

Method for certifying public keys in a digital signature scheme

Method for certifying public keys in a digital signature scheme

Method for certifying the authenticity of a datum exchanged betw

Method for changing passwords on a remote computer

Method for conducting a transaction between a chip card and an i

Method for controlling video and audio of a television set

Method for correcting subscriber-based secure call keys

Method for countermeasure in an electronic component using a...

Method for dial-in access security using a multimedia modem

Method for dynamically updating cellular phone unique encryption

Method for electronic merchandise dispute resolution

Method for electronic payment system with issuer control

Method for encrypting and embedding information in a video progr

Method for encrypting information and device for realization...

Method for encryption and transmission of digital keying data

Method for establishing a common code for authorized persons thr

Method for establishing a common key between a central...

Method for establishing secure communications among processing d