中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

176 records (took 0.023 seconds)

    DIGITAL AUTHENTICATION OVER ACOUSTIC CHANNEL
    131.
    发明专利
    DIGITAL AUTHENTICATION OVER ACOUSTIC CHANNEL 未知

    公开(公告)号：CA2533316A1

    公开(公告)日：2005-02-03

    申请号：CA2533316

    申请日：2004-07-21

    Applicant: QUALCOMM INC

    Inventor： ROSE GREGORY G ,  GANTMAN ALEXANDER

    IPC: G06F21/20 ,  H04L9/00 ,  G06F11/30 ,  G06F12/14 ,  G06F21/00 ,  G07C9/00 ,  G07F7/10 ,  G09C1/00 ,  H04L9/32

    Abstract: Method and apparatus for controlling access to a secure network, system or application is disclosed. In one embodiment, an apparatus for requesting authentication (210) includes a storage medium (211) that stores a cryptographic key, a processor (215) that generates an access code using the cryptographic key, a converter (217) that converts the access code into soun d waves, and an audio output unit (219) that outputs the sound waves encoded with the access code for authentication. An apparatus for granting authentication (250) includes a storage medium (251) that stores a cryptographic key, an audio input unit (257) that receives sound waves encod ed with a access code, a converter that recovers the access code from the sound waves, and a processor (255) that generates a second access code using the cryptographic key and grants authentication if the access code corresponds t o the second access code.

    METHOD AND APPARATUS FOR SIMPLIFIED AUDIO AUTHENTICATION
    136.
    发明专利
    METHOD AND APPARATUS FOR SIMPLIFIED AUDIO AUTHENTICATION 未知

    公开(公告)号：AU2002364095A1

    公开(公告)日：2003-07-15

    申请号：AU2002364095

    申请日：2002-12-19

    Applicant: QUALCOMM INC

    Inventor： ROSE GREGORY G ,  QUICK ROY FRANKLIN JR ,  GANTMAN ALEXANDER

    IPC: G07F7/10 ,  H04L9/32 ,  H04L9/00 ,  H04K1/00 ,  G06F1/04 ,  G06F1/06 ,  G06F1/08

    Abstract: An apparatus and method for authentication having a processor and at least one activator coupled to the processor is claimed. A signature generator is coupled to the processor and capable of generating a secure identifier. An emitter coupled to the signal generator capable of emitting the secure identifier. A receiver receives the emitted secure identifier and verifies that the secure identifier was appropriately transmitted. The public key corresponding to the key identifier transmitted is accessed to determine the validity of the secure identifier using the accessed key and that the time indicated in the received secure identifier is verified to be within acceptable time tolerances.

    137.
    发明专利
    未知

    公开(公告)号：NO20030046D0

    公开(公告)日：2003-01-06

    申请号：NO20030046

    申请日：2003-01-06

    Applicant: QUALCOMM INC

    Inventor： ROSE GREGORY G ,  ANTONIO FRANKLIN P

    IPC: G06F21/32 ,  G06Q20/32 ,  G10L15/00 ,  G10L15/28 ,  G10L17/00 ,  H04L9/32 ,  G06F

    Abstract: Method and apparatus for allowing persons to securely identify themselves in electronic commerce and transactions involving other parties. A token stores or determines a set of cryptographic signatures and uses a sound component to generate a unique audible tone representative of a cryptographic signature. The audible tone is conveyed to a party requesting authentication of the token holder, whereupon the party determines whether the information conveyed by the audible tone exists in a database of identities.

    138.
    发明专利
    未知

    公开(公告)号：BR0016507A

    公开(公告)日：2002-12-24

    申请号：BR0016507

    申请日：2000-12-21

    Applicant: QUALCOMM INC

    Inventor： ROSE GREGORY G ,  HAWKES PHILIP

    IPC: G06F21/20 ,  G06F21/00 ,  G09C1/00 ,  H04L9/32 ,  H04L29/06 ,  G06F1/00

    Abstract: A method of authenticating anonymous users while reducing potential for "middleman" fraud includes the step of constructing a puzzle in response to information received from a software user. The puzzle includes the received information. The puzzle is sent to the user by a software provider. The user solves the puzzle and returns the solution to the provider. The puzzle includes a portion of a value derived from an encrypted "cookie" and an exponentiation of the derived value. The cookie includes information about the user.

    139.
    发明专利
    未知

    公开(公告)号：NO20022234D0

    公开(公告)日：2002-05-10

    申请号：NO20022234

    申请日：2002-05-10

    Applicant: QUALCOMM INC

    Inventor： ROSE GREGORY G

    IPC: G09C1/00 ,  H04L9/00 ,  H04L9/12 ,  H04L9/18 ,  H04L

    Abstract: A method and apparatus for efficiently synchronizing a stream cipher. State information is transmitted that will allow the intended recipient of the encrypted data stream to set a stream cipher generator to the correct state from which to start generating the stream cipher. A cycle number indicating the current state of a linear feedback shift register and a stutter number indicating whether an output of the linear feedback shift register is dropped are both transmitted to a remote station along with the encrypted data stream.

    Generation of keyed integer permutations for message authentication codes
    140.
    发明专利
    Generation of keyed integer permutations for message authentication codes 未知

    公开(公告)号：AU5748901A

    公开(公告)日：2001-11-12

    申请号：AU5748901

    申请日：2001-05-01

    Applicant: QUALCOMM INC

    Inventor： HAWKES PHILIP ,  ROSE GREGORY G ,  QUICK ROY FRANKLIN

    IPC: G09C1/00 ,  H04L9/32

    Abstract: A method for constructing keyed integer permutations over the set Z N . where N can be factored into p and q, or N can be prime. N bits are permuted by deriving a keyed permutation of representative indices. When N is factorable into p and q, the set of indices are divided into two portions. The portions undergo iterative processing called "rounds," and in each round, a first half-round function operates on the first portion to form a first half-round value; the first half-round value and the second portion are added together by a modulo-p adder to form a first output value; a second half-round function operates on the second portion to form a second half-round value; and the second half-round value and the first portion are added together by a modulo-q adder to form a second output value. In this manner, outputs of the rounds are reordered. If N is prime and not less than 13, then N is separated into composite values s and t, and two sets are formed with s and t elements, respectively. Each set is then permuted using the method for when N is not prime. At the end of each round, the two blocks are combined using a mixing operation.

Patent Agency Ranking