Method, authentication medium and device for securing access to a piece of equipment
First Claim
1. A method of securing access to a piece of equipment, comprising:
- one attribution operation supplying a reference datum to an authentication medium;
an acquisition operation obtaining, for every access request formulated by a party requesting access to the equipment, a biometric signature of said party requesting access; and
a verification step verifying, by means of the reference datum, the authenticity of the biometric signature obtained from the party requesting access, further including a prior encryption step, during which an encrypted version of at least one authentic biometric signature belonging to at least one person authorised to access the piece of equipment is created, wherein the verification step comprises a decryption operation implemented in the authentication medium which includes decrypting, by means of a secret key, the encrypted version of an authentic biometric signature supplied to said authentication medium as a reference datum during the access request, and wherein the verification step comprises a comparing operation implemented by secretly comparing the biometric signature obtained from the party requesting access during the acccess request with the authentic biometric signature that results from the decryption step.
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Abstract
The invention relates to a device for securing access to a piece of equipment (EQP), comprising an authentication medium (CRD) which uses a reference datum and control means (CTRL) which can be used to verify the consistency between the reference datum and a biometric signature (SGN) obtained from a party requesting access. According to the invention, the reference datum comprises an encrypted version (CRYPT_SGN02) of an authentic biometric signature (SGN02) attributed to the party requesting access, and the aforementioned data consistency is verified by comprising (COMPAR) the biometric signature (SGN) obtained from a party requesting access to an authentic biometric signature (SGN02) resulting from decryption of the encrypted version (CRYPT SGN02) of said signature using a secret key (K).
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Citations
15 Claims
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1. A method of securing access to a piece of equipment, comprising:
- one attribution operation supplying a reference datum to an authentication medium;
an acquisition operation obtaining, for every access request formulated by a party requesting access to the equipment, a biometric signature of said party requesting access; and
a verification step verifying, by means of the reference datum, the authenticity of the biometric signature obtained from the party requesting access, further including a prior encryption step, during which an encrypted version of at least one authentic biometric signature belonging to at least one person authorised to access the piece of equipment is created, wherein the verification step comprises a decryption operation implemented in the authentication medium which includes decrypting, by means of a secret key, the encrypted version of an authentic biometric signature supplied to said authentication medium as a reference datum during the access request, and wherein the verification step comprises a comparing operation implemented by secretly comparing the biometric signature obtained from the party requesting access during the acccess request with the authentic biometric signature that results from the decryption step. - View Dependent Claims (2, 3, 4, 11)
- one attribution operation supplying a reference datum to an authentication medium;
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5. A device for securing access to a piece of equipment, comprising:
- an authentication medium which is supplied with a reference datum;
a sensor obtaining, during every access request formulated by a party requesting access to the equipment, a biometric signature of said party requesting access; and
a controller included in the authentication medium and selectively authorising the party requesting access to access the piece of equipment in accordance with the result of a verification of the authenticity of the biometric signature of the party requesting access by means of the reference datum wherein the controller comprises a decryption module and a comparison module wherein the reference datum supplied to the authentication medium comprises an encrypted version of an authentic biometric signature allegedly attributed to the party requesting access, wherein the decryption module uses a secret key by means of which it secretly reconstructs, upon each access request, the authentic biometric signature from its encrypted version and wherein the comparison module secretly compares the biometric signature obtained from the party requesting access with the reconstructed authentic biometric signature and supplies a comparison result that constitutes the result of the verification. - View Dependent Claims (6, 7, 8, 9, 10, 12, 13, 14, 15)
- an authentication medium which is supplied with a reference datum;
Specification