Protection of biometric data via key-dependent sampling

    公开(公告)号:AU2118000A

    公开(公告)日:2000-08-18

    申请号:AU2118000

    申请日:2000-01-26

    Applicant: IBM

    Abstract: Key-dependent sampling of a biometric characteristic is performed at a client, to thereby generate key-dependent biometric data samples. The key-dependent biometric data samples are then transmitted from the client to a server. By sampling the biometric characteristic at the client in a key-dependent manner, the key-dependent biometric data samples may be transmitted from the client to the server without the need for additional encryption and/or a signature. A key is preferably transmitted from the server to the client. The key is then used to perform the key-dependent sampling of the biometric characteristic at the client. The key-dependent sampling may be performed by sampling the biometric characteristic at a sampling frequency that is a function of the key. Alternatively, the key can be applied to the sampled biometric data, to thereby generate the key-dependent biometric data samples that are a function of the key. The key is preferably used to perform nonlinear key-dependent sampling of the biometric characteristic at the client, for example by using the key to determine the sampling frequency and also using the key to apply a nonlinear function to the sampled biometric data. Further encryption of the biometric data and/or the use of a signature with the biometric data need not be performed.

    2.
    发明专利
    未知

    公开(公告)号:DE60319366T2

    公开(公告)日:2009-04-02

    申请号:DE60319366

    申请日:2003-05-16

    Applicant: IBM

    Abstract: A Resource Reservation System includes a Token Generation Unit (TGU) which generates and circulates among nodes of a communications system a Slotted Token (SLT) message having sub-fields to carry identification number for each input port in a node and the resource available for each input port. On receiving the message the Resource Control Unit (RCU) in each node can write port identification number, available resource in appropriate sub-fields of the SLT message, and reserve resources in other nodes by adjusting information in the sub-field associated with the other nodes.

    3.
    发明专利
    未知

    公开(公告)号:AT315293T

    公开(公告)日:2006-02-15

    申请号:AT00901220

    申请日:2000-01-26

    Applicant: IBM

    Abstract: Key-dependent sampling of a biometric characteristic is performed at a client, to thereby generate key-dependent biometric data samples. The key-dependent biometric data samples are then transmitted from the client to a server. By sampling the biometric characteristic at the client in a key-dependent manner, the key-dependent biometric data samples may be transmitted from the client to the server without the need for additional encryption and/or a signature. A key is preferably transmitted from the server to the client. The key is then used to perform the key-dependent sampling of the biometric characteristic at the client. The key-dependent sampling may be performed by sampling the biometric characteristic at a sampling frequency that is a function of the key. Alternatively, the key can be applied to the sampled biometric data, to thereby generate the key-dependent biometric data samples that are a function of the key. The key is preferably used to perform nonlinear key-dependent sampling of the biometric characteristic at the client, for example by using the key to determine the sampling frequency and also using the key to apply a nonlinear function to the sampled biometric data. Further encryption of the biometric data and/or the use of a signature with the biometric data need not be performed.

    4.
    发明专利
    未知

    公开(公告)号:BR0311224A

    公开(公告)日:2005-03-22

    申请号:BR0311224

    申请日:2003-05-16

    Applicant: IBM

    Abstract: A Resource Reservation System includes a Token Generation Unit (TGU) which generates and circulates among nodes of a communications system a Slotted Token (SLT) message having sub-fields to carry identification number for each input port in a node and the resource available for each input port. On receiving the message the Resource Control Unit (RCU) in each node can write port identification number, available resource in appropriate sub-fields of the SLT message, and reserve resources in other nodes by adjusting information in the sub-field associated with the other nodes.

    Ochrana biometrických dat klícove závislým vzorkováním

    公开(公告)号:CZ300144B6

    公开(公告)日:2009-02-25

    申请号:CZ20012673

    申请日:2000-01-26

    Applicant: IBM

    Abstract: Klícove závislé vzorkování biometrické charakteristiky se provádí na klientovi (110), aby se tak vytvorily klícove závislé biometrické datové vzorky.Klícove závislé biometrické datové vzorky se potom prenesou z klienta (110) na server (112). Ovzorkováním biometrických charakteristik na klientu (110) klícove závislým zpusobem mohou být klícove závislé biometrické datové vzorky prenášeny z klienta(110) na server (112) bez potreby prídavného šifrování a/nebo podepisování. Klíc se prednostne prenáší ze serveru (112) na klienta (110). Klíc se potom použije k provedení klícove závislého vzorkování biometrické charakteristiky na klientovi (110). Klícove závislé vzorkování muže být provedeno vzorkováním biometrické charakteristiky na vzorkovacímkmitoctu, který je funkcí klíce. Alternativne lzeklíc aplikovat na vzorkovaná biometrická data, címž se vytvorí klícove závislé biometrické datové vzorky, které jsou funkcí klíce. Klíc se prednostnepoužije k provedení nelineárního klícove závislého vzorkování biometrické charakteristiky na klientovi (110), napríklad s použitím klíce k urcení vzorkovacího kmitoctu a také s použitím klíce k aplikaci nelineární funkce na vzorkovaná biometrická data. Není nutné provádet další šifrování biometrických dat a/nebo používat podpis s biometrickými daty. Rešení se dále týká systému klienta (110) pro bezpecný prenos biometrických datových vzorku, systému serveru (112) pro zpracování biometrických data produktu pocítacového programu pro bezpecný prenos biometrických dat.

    7.
    发明专利
    未知

    公开(公告)号:AT387781T

    公开(公告)日:2008-03-15

    申请号:AT03722876

    申请日:2003-05-16

    Applicant: IBM

    Abstract: A Resource Reservation System includes a Token Generation Unit (TGU) which generates and circulates among nodes of a communications system a Slotted Token (SLT) message having sub-fields to carry identification number for each input port in a node and the resource available for each input port. On receiving the message the Resource Control Unit (RCU) in each node can write port identification number, available resource in appropriate sub-fields of the SLT message, and reserve resources in other nodes by adjusting information in the sub-field associated with the other nodes.

    System and method for encrypting and verifying messages using three-phase encryption

    公开(公告)号:AU2003282981A1

    公开(公告)日:2005-01-28

    申请号:AU2003282981

    申请日:2003-10-20

    Applicant: IBM

    Abstract: A method and system for encrypting and verifying the integrity of a message using a three-phase encryption process is provided. A source having a secret master key that is shared with a target receives the message and generates a random number. The source then generates: a first set of intermediate values from the message and the random number; a second set of intermediate values from the first set of values; and a cipher text from the second set of values. At the three phases, the values are generated using the encryption function of a block cipher encryption/decryption algorithm. The random number and the cipher text are transmitted to the target, which decrypts the cipher text by reversing the encryption process. The target verifies the integrity of the message by comparing the received random number with the random number extracted from the decrypted cipher text.

    Protection of biometric data by employing key-dependent coding

    公开(公告)号:CZ20012673A3

    公开(公告)日:2002-02-13

    申请号:CZ20012673

    申请日:2000-01-26

    Applicant: IBM

    Abstract: Key-dependent sampling of a biometric characteristic is performed at a client, to thereby generate key-dependent biometric data samples. The key-dependent biometric data samples are then transmitted from the client to a server. By sampling the biometric characteristic at the client in a key-dependent manner, the key-dependent biometric data samples may be transmitted from the client to the server without the need for additional encryption and/or a signature. A key is preferably transmitted from the server to the client. The key is then used to perform the key-dependent sampling of the biometric characteristic at the client. The key-dependent sampling may be performed by sampling the biometric characteristic at a sampling frequency that is a function of the key. Alternatively, the key can be applied to the sampled biometric data, to thereby generate the key-dependent biometric data samples that are a function of the key. The key is preferably used to perform nonlinear key-dependent sampling of the biometric characteristic at the client, for example by using the key to determine the sampling frequency and also using the key to apply a nonlinear function to the sampled biometric data. Further encryption of the biometric data and/or the use of a signature with the biometric data need not be performed.

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