| Patent application number | Description | Published |
|---|
| 20080212780 | Homomorphic Encryption For Secure Watermarking - A method and a system for embedding a watermark in a media signal x are disclosed. The method comprises providing an at least partially encrypted media signal c | 09-04-2008 |
| 20080222426 | Security Device - A security device comprising means for authenticating an entity using biometric data, characterized by means for alternatively authenticating the entity using a security code such as a personal identification number. Also a system configured to grant an authorization upon a successful authorization by the security device, in which the authorization granted after the authentication using the security code is restricted in scope compared to the authorization granted after the authentication using the biometric data. | 09-11-2008 |
| 20080222496 | Secure Protection of Biometric Templates - This invention relates to methods and devices for verifying the identity of a person based on a sequence of feature components extracted from a biometric sample. Thereafter, the feature components are quantized and assigned a data bit sequence in such a way that adjacent quantization intervals have a Hamming distance of 1. The data bit sequences are concatenated into a bit string, and said bit string is combined with a helper data set by using an exclusive disjunction (XOR) operation into a codeword. Finally, the codeword is decoded into a secret V and a secret S is matched with the secret V. | 09-11-2008 |
| 20080229119 | Information Carrier Authentication With a Physical One-Way Function - The present invention relates to a method of enabling authentication of an information carrier ( | 09-18-2008 |
| 20080231418 | Integrated Physical Unclonable Function (Puf) with Combined Sensor and Display - The present invention relates to a device ( | 09-25-2008 |
| 20080237506 | Integrated Puf - In a device for providing challenge-response pairs a radiation detection element, a challenge-modifying element and preferably also a light source are arranged on the same side of an imaginary plane, which separates said radiation-detecting element from a radiation scattering element. Hence, generation of a speckle pattern having a desired minimum speckle size is facilitated and a more easily assembled device is provided. | 10-02-2008 |
| 20080256600 | Device, System and Method for Determining Authenticity of an Item - This invention relates to physical uncloneable function (PUF) devices for determining authenticity of an item, systems for determining authenticity of a physical item, and methods for determining authenticity of an item. A PUF pattern of the PUF device is damaged when using the item for the first time. | 10-16-2008 |
| 20080260152 | Proofs of Vicinity Using Cpufs - The present invention relates to a method and a device ( | 10-23-2008 |
| 20080304657 | Secure Threshold Decryption Protocol Computation - The present invention relates to a method of converting an encrypted data set into an encryption of individual bits representing the data set. Further, the invention relates to a system for converting an encrypted data set into an encryption of individual bits representing the data set. A basic idea of the present invention is to provide a protocol in which it is possible to divide an encryption of a data set in the form of e.g. a biometric feature, such as a number x, where xε{0, 1, . . . , n−1}, into an encryption of respective bits x | 12-11-2008 |
| 20080314715 | Security Element and Methods for Manufacturing and Authenticating the Same - A security element comprises at least one oscillating circuit (O | 12-25-2008 |
| 20090006855 | Securely Computing a Similarity Measure - The present invention relates to a method and a system of securely computing a measure of similarity for at least two sets of data. A basic idea of the present invention is to securely compare two sets of encrypted data to determine whether the two sets of data resemble each other to a sufficient extent. If the measure of similarity complies with predetermined criteria, the two sets of data from which the encrypted sets of data originate are considered to be identical. | 01-01-2009 |
| 20090008924 | AUTHENTICATING BANKNOTES OR OTHER PHYSICAL OBJECTS | 01-08-2009 |
| 20090153841 | OPTICAL SCANNING DEVICE - An optical identifier ( | 06-18-2009 |
| 20090183248 | TWO-WAY ERROR CORRECTION FOR PHYSICAL TOKENS - The invention relates to a method of establishing a shared secret between two or more parties, based on a physical token, wherein helper data from both the enrolment and the authentication measurement is used in such a way that only response data reliable at both measurements is used to generate the shared secret. The generated shared secret is therefore identical to both parties to a high degree of certainty. The invention further relates to a system for generating such a shared secret, comprising a central database server and a terminal, or any one of them. | 07-16-2009 |
| 20090208019 | METHOD AND APPARATUS FOR ENCRYPTING/DECRYPTING DATA - The present invention relates to a method and apparatus for encrypting data ( | 08-20-2009 |
| 20090217045 | PHYSICAL SECRET SHARING AND PROOFS OF VICINITY USING PUFS - The present invention relates to a method of creating challenge-response pairs, a method of authenticating a plurality of physical tokens, a system for creating challenge-response pairs and a device for authenticating a plurality of physical tokens. A basic idea of the invention is to interconnect a plurality of physical tokens ( | 08-27-2009 |
| 20090244518 | OPTICAL IDENTIFIER COMPRISING RANDOMLY ORIENTED PARTIAL FACES - The invention relates to an optical identifier ( | 10-01-2009 |
| 20090265758 | ATTACH DETECTION WITH COATING PUF - The present invention relates to a method of authenticating a physical token ( | 10-22-2009 |
| 20090282259 | NOISY LOW-POWER PUF AUTHENTICATION WITHOUT DATABASE - The present invention relates to a method of authenticating, at a verifier ( | 11-12-2009 |
| 20100026461 | EXTENDED FUNCTIONALITY OF RFID DEVICES - It is described a RFID device ( | 02-04-2010 |
| 20100027784 | KEY GENERATION USING BIOMETRIC DATA AND SECRET EXTRACTION CODES - There is provided a method of generating a key for encrypting Communications between first and second terminals comprising obtaining a measurement of characteristics of a physical identifier of a user; and extracting a key from the physical identifier using a code selected from a collection of codes, each code in the collection defining an ordered mapping from a set of values of the characteristics to a set of keys; wherein the collection of codes comprises at least one code in which the ordered mapping is a permutation of the ordered mapping of one of the other codes in the collection. | 02-04-2010 |
| 20100054466 | METHOD OF GENERATING ARBITRARY NUMBERS GIVEN A SEED - The invention provides a method of generating arbitrary numbers given a seed, characterized by providing a challenge derived from the seed to a physical token, receiving an initial response from the physical token, combining the initial response with helper data associated with the challenge to produce a stable response, and generating the arbitrary numbers using a pseudo-random number generator using the stable response as a seed for the generator. Preferably one or more of these pseudo-random permutations are used as one or more round function(s) in a Feistel block cipher. The generated arbitrary numbers may also be used to create a cryptographic key. | 03-04-2010 |
| 20100058063 | FUZZY BIOMETRICS BASED SIGNATURES - The present invention relates to a method and a device of verifying the validity a digital signature based on biometric data. A basic idea of the invention is that a verifier attains a first biometric template of the individual to be verified, for instance by having the individual provide her fingerprint via an appropriate sensor device. Then, the verifier receives a digital signature and a second biometric template. The verifier then verifies the digital signature by means of using either the first or the second biometric template as a public key. The attained (first) biometric template of the individual is compared with the received (second) biometric template associated with the signature and if a match occurs, the verifier can be confident that the digital signature and the associated (second) biometric template have not been manipulated by an attacker for impersonation purposes. | 03-04-2010 |
| 20100122093 | METHOD, APPARATUS AND SYSTEM FOR VERIFYING AUTHENTICITY OF AN OBJECT - The invention relates to a method for proving authenticity of a prover PRV to a verifier VER, the method comprising generating a secret S using a physical token by the prover PRV. Obtaining a public value PV by the verifier, where the public value PV has been derived from the secret S using a function for which the inverse of said function is computationally expensive. The method further comprising a step for conducting a zero knowledge protocol between the prover PRV and the verifier VER in order to prove to the verifier VER, with a pre-determined probability, that the prover PRV has access to the physical token, where the prover PRV makes use of the secret S and the verifier VER makes use of the public value PV. The invention further relates to a system employing the method, and an object for proving authenticity. | 05-13-2010 |
| 20100146261 | CONTROLLED ACTIVATION OF FUNCTION - A method of and system ( | 06-10-2010 |
| 20100161994 | METHOD AND APPARATUS FOR AUTHENTICATING STATIC DATA CARRIERS - Method of authenticating optical discs ( | 06-24-2010 |
