摘要:
Reader (420) for determining the validity of a connection to a transponder (440), designed to measure a response time of a transponder (440) and to authenticate the transponder (440) in two separate steps. Transponder (440) for determining the validity of a connection to a reader (420), wherein the transponder (440) is designed to provide information for response time measurement to said reader (420) and to provide information for authentication to said reader (420) in two separate steps, wherein at least a part of data used for the authentication is included in a communication message transmitted between the reader (420) and the transponder (440) during the measuring of the response time.
摘要:
Transponder (104), comprising a storage unit (106) having stored a number of different applications, a processing unit (108) which, on request of a reader (102), is adapted to generate a response interpretable using an encryption scheme known by both the transponder (104) and the reader (102) so that the reader (102) is capable of determining whether an application is supported by the transponder (104) by analyzing the response using the encryption scheme, and a transmission unit (110) adapted to send the response to said reader (102).
摘要:
Reader (420) for determining the validity of a connection to a transponder (440), designed to measure a response time of a transponder (440) and to authenticate the transponder (440) in two separate steps. Transponder (440) for determining the validity of a connection to a reader (420), wherein the transponder (440) is designed to provide information for response time measurement to said reader (420) and to provide information for authentication to said reader (420) in two separate steps, wherein at least a part of data used for the authentication is included in a communication message transmitted between the reader (420) and the transponder (440) during the measuring of the response time.
摘要:
Transponder (104), comprising a storage unit (106) having stored a number of different applications, a processing unit (108) which, on request of a reader (102), is adapted to generate a response interpretable using an encryption scheme known by both the transponder (104) and the reader (102) so that the reader (102) is capable of determining whether an application is supported by the transponder (104) by analyzing the response using the encryption scheme, and a transmission unit (110) adapted to send the response to said reader (102).
摘要:
An authentication method (100) for a secure data transmission is provided, the method comprising performing a first authentication protocol (101) by using a first cipher and performing a second authentication protocol (102) by using a second cipher. Possible inputs for the first authentication protocol (101) may be one shared key or several keys, and one or two random numbers.
摘要:
A method for generating a public key for an electronic device is provided, wherein the method comprises generating a public key 103 based on a private key and a unique identifier associated with the electronic device 200.
摘要:
An authentication method (100) for a secure data transmission is provided, the method comprising performing a first authentication protocol (101) by using a first cipher and performing a second authentication protocol (102) by using a second cipher. Possible inputs for the first authentication protocol (101) may be one shared key or several keys, and one or two random numbers.
摘要:
A method for generating a public key for an electronic device is provided, wherein the method comprises generating a public key 103 based on a private key and a unique identifier associated with the electronic device 200.
摘要:
A resilient connector for maintaining an electrical conductor in side-by-side conductive engagement with a bus bar includes a generally loop- or O-shaped resilient contact body having a first end portion, an intermediate portion arranged generally normal to the intermediate portion, and a second end portion that is normally arranged at an acute angle relative to the contact intermediate portion, the contact first end portion containing a window opening having first and second opposed edges remote from and adjacent the intermediate portion, respectively, the second contact end portion being displaceable from a normal first position adjacent the first window edge toward a second position adjacent the second window edge, whereby when the second contact end is displaced to its second position and a conductor and a bus bar are introduced in side-by-side electrically conductive relation within the window, release of the second end portion causes the conductor and the bus bar to be clamped in tight electrical contact by the cooperation between the second contact end portion and by the first window edge. In order to prevent permanent distortion of the contact body, a stop member is mounted within the contact cavity for limiting movement of the second contact end beyond the second position. Consequently, the stop member permits the use of the contact arrangement in fixed pole applications where the bus bar and the compression spring are to be installed from above or below a housing within which the electrical components are contained.
摘要:
An electrical terminal block connector is provided for connecting a plurality of power supply conductors having a first cross-sectional area and a plurality of data input conductors having a smaller cross-sectional area with a plurality of output conductors having a uniform cross-sectional area. The connector includes a terminal block housing containing a chamber, first and second inlet openings communicating with the chamber for receiving the ends of the power conductors and the data conductors, respectively, and a plurality of outlet openings communicating with the chamber for connection with the ends of the output conductors, respectively. First and second connector devices are arranged in the chamber for connection with the ends of the power and data conductors, respectively, and a plurality of identical third connectors connected with the first and second connectors include tulip-shaped terminals that extend within corresponding outlet openings for connection with the output conductors, respectively. The first connectors include resilient terminals connected by buses with the third connectors, and the second connectors include a data socket having outlet terminals connected with the third connectors via the conductors of a printed circuit board, respectively.