An electronic identification document in the form of a card or booklet, comprising : - a physical support ; - a control unit incorporating means for storing at least one reference biometric parameter (P R ) of a holder of the electronic identification document ; - sensor means , configured to detect at least one current biometric parameter (P C ); - communication means ; - a power unit ; - a processor configured to interact with a remote device , read data from, write data on and/or power said electronic identification document and store holder's personal data for interaction with the remote device ; wherein the control unit is programmed to: a) comparing said biometric reference parameter (P R ) with said current biometric parameter (P C ) and calculating a similarity index (I S ); b) comparing said similarity index (I S ) with a first predetermined threshold (T S ), and, in case said similarity index (I S ) is greater than said first predetermined threshold (T S ), enabling said processor to an interaction with the remote device ; and it is characterized in that : c) in the event said similarity index (I S ) is greater than a second predetermined threshold (T Sbis ) higher than said first predetermined threshold (T S ), updating said reference biometric parameter (P R ) with said current biometric parameter (P C ) in said storage means; which electronic identification document presents a partition in a first (A) and a second (B) part, wherein said first part (A) bears said sensor means , said communication means , said control unit and said power unit and said second part (B) bears said processor , wherein said second part (B) bears additional storage means of identification data of the holder of the document itself and/or access keys for interaction with the remote device , and wherein said control unit is configured to allow an enabling of said communication means between said first (A) and said second (B) part and/or between said second part (B) and the remote device in said step (b). - a physical support ; - a control unit incorporating means for storing at least one reference biometric parameter (P R ) of a holder of the electronic identification document ; - sensor means , configured to detect at least one current biometric parameter (P C ); - communication means ; - a power unit ; - a processor configured to interact with a remote device , read data from, write data on and/or power said electronic identification document and store holder's personal data for interaction with the remote device ; a) comparing said biometric reference parameter (P R ) with said current biometric parameter (P C ) and calculating a similarity index (I S ); b) comparing said similarity index (I S ) with a first predetermined threshold (T S ), and, in case said similarity index (I S ) is greater than said first predetermined threshold (T S ), enabling said processor to an interaction with the remote device ; and it is characterized in that : c) in the event said similarity index (I S ) is greater than a second predetermined threshold (T Sbis ) higher than said first predetermined threshold (T S ), updating said reference biometric parameter (P R ) with said current biometric parameter (P C ) in said storage means; <EOS>