US 2004/0025035 A1 · Contactless electronic identification system

Abstract

The invention concerns a non-contact electronic identification system comprising at least a reading unit (5) and at least a data storage medium or transponder (1) adapted to be interrogated by the reading unit, said reading unit comprising security means (50, 60) for making secure access to application data (APPL. DATA i) during operations managing said application data. According to the invention the transponder (1) comprises storage means (18) including a segmented memory workspace (180) for receiving application data (APPL. DATA i) concerning a plurality of separate applications, said application data being encrypted by said reading unit (5) using at least a first encoding key before being stored in said storage means (18) of the transponder.

Claims35

Dependent claims

Contactless electronic identification system comprising at least one read unit (5) and at least one data storage unit or transponder (1) capable of being interrogated by said read unit (5),

this transponder including storage means (18) including a segmented memory space (180) for receiving application data (APPL. DATA i) relating to a plurality of distinct applications (APPL. i),
the read unit (5) including security means (50, 60) for securing access to said application data (APPL. DATA i) during management operations of said application data,
characterised in that said application data (APPL. DATA i) is encrypted by said read unit by means of at least a first encoding key prior to being stored in said storage means (18) of the transponder (1).

Method for formatting and managing data in storage means (18) of a data storage unit or transponder (1) of a contactless electronic identification system,

this method including in particular an initial segmentation step of a memory space (180) of said transponder storage means (18) into a plurality of memory segments (181, 182, 183, 184) to receive application data (APPL. DATA i) relating to a plurality of distinct applications (APPL. i),
this method being characterised in that it further includes the following steps:
encrypting, by means of at least one first encoding key, application data of a least a first determined application from among said plurality of distinct applications;
transmitting encrypted application data to said transponder;
and
storing said encrypted application data in at least one of said memory segments.

3 more elements

Read unit (5) for contactless electronic identification of at least one data storage unit or transponder (1) including storage means (18), this read unit including a read/write interface (51) for conversing without contact, with said transponder (1),

said storage means (18) including a memory space (180) segmented into a plurality of memory segments (181, 182,183, 184) for receiving application data (APPL. DATA i) relating to a plurality of distinct application data (APPL. i),
characterised in that the read unit further includes:
encrypting means (53) for encrypting application data by means of at least a first encoding key prior to transmission and storage thereof in said transponder;
and
decrypting means (53) for decrypting application data stored in said transponder after it has been read.

2 more elements

Dependencies are inferred from the claim text.

Contactless electronic identification system

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Contactless electronic identification system

Life of this patent

Abstract

Claims35