Abstract: The present invention relates to a multilayer information page (1) for a security document, which includes an information part (3) manufactured from a material allowing at least some identification information of the information page to be entered thereto by utilizing laser engraving, the identification information provided on the information page (1) being readable from an upper surface thereof, and a flexible and bending resistant connecting part (2) for connecting the information page (1) to the security document, the connecting part (2) comprising a fastening end (8) by means of which the connecting part (2) is fastened to the information part (3). In order to ensure that detachment of the information part and the connecting part from one another leaves visible marks, the fastening end (3) of the connecting part (2) is arranged to overlap with a lower surface of the information part (3).

Abstract: An information page (1) of a security document, includes: an information part (3), on the upper or lower surface of which part of the information recorded on the information page (1) can be seen; and a flexible connecting part (2) with good bending strength for attaching the information page (1) to a security document. To ensure that detaching the information part and the connecting part from each other leaves visible marks, the connecting part (2) has a netlike structure, and the connecting part (2) is arranged to penetrate into the information part (3) in the immediate vicinity of the upper or lower surface of the information part.

Abstract: An information page (1) and method are provided for a security document. The information page includes: an information part (3), and an attachment part (2) for attaching the information part to the security document. In order to make forgery visually detectable, the information part (3) is provided with a unique identifier (5), and the attachment part (2, 2?) is provided with the same unique identifier (5) as the information part (3).

Abstract: The present invention relates to a multilayer information page (1) for a security document, which includes an information part (3) allowing at least some information to be entered into the information page, a flexible and bending resistant connecting part (2) for connecting the information page to the security document, and a surface film (7) which at least partly covers the information part (3) and the connecting part (2) and which is fastened to the information page (1) by lamination. In order to make a possible attempt at forgery even easier to detect, a visible pattern (8) is provided between the connecting part (2) and the surface film (7), and between the visible pattern (8) and the surface film (7) or, correspondingly, between the visible pattern (8) and the connecting part (2), a detachment layer (9) is arranged which consists of separately residing areas preventing the connecting part (2) or, correspondingly, the surface film (7) from becoming firmly attached to the visible pattern (8).

Abstract: The invention relates to a smartcard (1) comprising: a first section (4) enclosing a contactless microcircuit (2). In order to improve the security of the smart card against forgery said smartcard comprises: a compensation section (7) of a transparent material, said compensation section having substantially the same thickness as the first section (4) and surrounding said first section, a top section (5) of a transparent material, said top section being arranged on top of said first section (4) and said compensation section (7) as a surface layer of said smartcard (1), and a bottom section (6) of a transparent material, said bottom section being arranged under said first section (4) and said compensation section (7) as a surface layer of said smartcard (1).

Abstract: An information page (1) and method are provided for a security document. The information page includes: an information part (3), and an attachment part (2) for attaching the information part to the security document. In order to make forgery visually detectable, the information part (3) is provided with a unique identifier (5), and the attachment part (2, 2?) is provided with the same unique identifier (5) as the information part (3).

Abstract: The invention relates to a smartcard (1) comprising: a first section (4) enclosing a contactless microcircuit (2). In order to improve the security of the smart card against forgery said smartcard comprises: a compensation section (7) of a transparent material, said compensation section having substantially the same thickness as the first section (4) and surrounding said first section, a top section (5) of a transparent material, said top section being arranged on top of said first section (4) and said compensation section (7) as a surface layer of said smartcard (1), and a bottom section (6) of a transparent material, said bottom section being arranged under said first section (4) and said compensation section (7) as a surface layer of said smartcard (1).

Abstract: The present invention relates to a multilayer information page (1) for a security document, which includes an information part (3) allowing at least some information to be entered into the information page, a flexible and bending resistant connecting part (2) for connecting the information page to the security document, and a surface film (7) which at least partly covers the information part (3) and the connecting part (2) and which is fastened to the information page (1) by lamination. In order to make a possible attempt at forgery even easier to detect, a visible pattern (8) is provided between the connecting part (2) and the surface film (7), and between the visible pattern (8) and the surface film (7) or, correspondingly, between the visible pattern (8) and the connecting part (2), a detachment layer (9) is arranged which consists of separately residing areas preventing the connecting part (2) or, correspondingly, the surface film (7) from becoming firmly attached to the visible pattern (8).

Abstract: An information page (1) of a security document, includes: an information part (3), on the upper or lower surface of which part of the information recorded on the information page (1) can be seen; and a flexible connecting part (2) with good bending strength for attaching the information page (1) to a security document. To ensure that detaching the information part and the connecting part from each other leaves visible marks, the connecting part (2) has a netlike structure, and the connecting part (2) is arranged to penetrate into the information part (3) in the immediate vicinity of the upper or lower surface of the information part.

Abstract: The present invention relates to a multilayer information page (1) for a security document, which includes an information part (3) manufactured from a material allowing at least some identification information of the information page to be entered thereto by utilizing laser engraving, the identification information pro-vided on the information page (1) being readable from an upper surface thereof, and a flexible and bending resistant connecting part (2) for connecting the information page (1) to the security document, the connecting part (2) comprising a fastening end (8) by means of which the connecting part (2) is fastened to the information part (3). In order to ensure that detachment of the information part and the connecting part from one another leaves visible marks, the fastening end (3) of the connecting part (2) is arranged to overlap with a lower surface of the information part (3).

Abstract: The present invention relates to a device (1) comprising an input for receiving an input; calculation means (P) for producing a response (OUTPUT) in response to the input (INPUT) and a secret key (A) by utilizing a first predetermined function (f), and an output (3) for feeding said response (OUTPUT) further. In order for an attacker not be able to find out the secret key, the device further comprises a memory (M) in which the key-specific number (RND) is stored, and means for retrieving the key-specific number (RND) from the memory (M) and for feeding it to the calculation means (P?) for carrying out predetermined calculation operations (f2) on the basis of the key-specific number (RND) when producing said response (OUTPUT).

Abstract: The present invention relates to a telecommunication system comprising: at least one subscriber station in the memory of which a secret key is stored, and authentication means for authenticating the subscriber station. In order to make the subscriber-station-specific secret key even more difficult to crack, the subscriber station checks the correctness of a received input by computing a message authentication code utilizing the input and a checking algorithm and computes a response to be transmitted to the authentication means by the subscriber station utilizing an authentication algorithm, the secret key stored in the memory of the subscriber station and the input if the input is correct on the basis of the message authentication code.

Abstract: The present invention relates to a device (1) comprising an input for receiving an input; calculation means (P) for producing a response (OUTPUT) in response to the input (INPUT) and a secret key (A) by utilizing a first predetermined function (f), and an output (3) for feeding said response (OUTPUT) further. In order for an attacker not be able to find out the secret key, the device further comprises a memory (M) in which the key-specific number (RND) is stored, and means for retrieving the key-specific number (RND) from the memory (M) and for feeding it to the calculation means (P′) for carrying out predetermined calculation operations (f2) on the basis of the key-specific number (RND) when producing said response (OUTPUT).