41.
    发明专利
    未知

    公开(公告)号:AT405050T

    公开(公告)日:2008-08-15

    申请号:AT03809499

    申请日:2003-07-24

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus are presented herein for encrypting and authentication data, such that some of data can be transmitted in the clear but still be authenticated by the sender. A set of cleartext positions and/or a set of ciphertext positions are used to specify which data blocks will be used to generate an input checksum value and an output checksum value. These checksums are then used to generate an authentication tag.

    Efficient encryption and authentication for data processing systems

    公开(公告)号:AU2003296887B2

    公开(公告)日:2008-04-17

    申请号:AU2003296887

    申请日:2003-07-24

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus are presented for encrypting and authenticating data, wherein some data is encrypted and some data is not encrypted, but all of the data is authenticated. Different formulations for authentication blocks are used according to whether a block of data occupies a cleartext position or ciphertext position. The authentication blocks are then combined to form a checksum, which is encrypted to form an authentication tag.

    METHOD AND APPARATUS FOR SECURITY IN A DATA PROCESSING SYSTEM

    公开(公告)号:HK1104136A1

    公开(公告)日:2008-01-04

    申请号:HK07112483

    申请日:2007-11-15

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key. One embodiment provides link layer content encryption. Another embodiment provides end-to-end encryption.

    METHOD OF AND APPARATUS FOR ENCRYPTING SIGNALS FOR TRANSMISSION

    公开(公告)号:CA2283304C

    公开(公告)日:2007-12-18

    申请号:CA2283304

    申请日:1998-03-04

    Applicant: QUALCOMM INC

    Inventor: ROSE GREGORY G

    Abstract: In a communications system, a method of transforming a set of message signal s representing a message comprising the steps of first encoding one of the set of message signals in accordance with a first keyed transformation, a second encoding of the one of the set of message signals in accordance with at least one additional keyed transformation, a third encoding of the one of the set of message signals in accordance with a self-inverting transformation in which at least one of the set of message signals is altered, a fourth encoding of the one of the set of message signals in accordance with at least one additional inverse keyed transformation wherein each of the at least one additional inverse keyed transformation is a corresponding inverse of at lea st one additional keyed transformation, and fifth encoding the one of the set of message signals in accordance with first inverse keyed transformation wherein the first inverse keyed transformation is the inverse of the first keyed transformation.

    45.
    发明专利
    未知

    公开(公告)号:BR0312866A

    公开(公告)日:2007-07-10

    申请号:BR0312866

    申请日:2003-07-24

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus are presented for encrypting and authenticating data, wherein some data is encrypted and some data is not encrypted, but all of the data is authenticated. Different formulations for authentication blocks are used according to whether a block of data occupies a cleartext position or ciphertext position. The authentication blocks are then combined to form a checksum, which is encrypted to form an authentication tag.

    46.
    发明专利
    未知

    公开(公告)号:AT353175T

    公开(公告)日:2007-02-15

    申请号:AT01985159

    申请日:2001-12-27

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus are presented for providing local authentication of subscribers travelling outside their home systems. A subscriber identification token 230 provides authentication support by generating a signature 370 based upon a key that is held secret from a mobile unit 220. A mobile unit 220 that is programmed to wrongfully retain keys from a subscriber identification token 230 after a subscriber has removed his or her token is prevented from subsequently accessing the subscriber's account.

    47.
    发明专利
    未知

    公开(公告)号:BRPI0414061A

    公开(公告)日:2006-10-24

    申请号:BRPI0414061

    申请日:2004-09-02

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for secure generation of a short-term key SK for viewing information content in a Multicast-broadcast-multimedia system are described. A short-term key is generated by a memory module residing in user equipment (UE) only when the source of the information used to generate the short-term key can be validated. A short-term key can be generated by a Broadcast Access Key (BAK) or a derivative of BAK and a changing value with a Message Authentication Code (MAC) appended to the changing value. A short-term key (SK) can also be generated by using a private key and a short-term key (SK) manager with a corresponding public key distributed to the memory module residing in the user equipment (UE), using a digital signature.

    48.
    发明专利
    未知

    公开(公告)号:BRPI0412398A

    公开(公告)日:2006-09-19

    申请号:BRPI0412398

    申请日:2004-07-08

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key. One embodiment provides link layer content encryption. Another embodiment provides end-to-end encryption.

    System and method for acoustic two factor authentication

    公开(公告)号:NZ534700A

    公开(公告)日:2005-03-24

    申请号:NZ53470003

    申请日:2003-02-12

    Applicant: QUALCOMM INC

    Abstract: A method for authentication that comprises:- (a) Providing at least a PIN and a confidential public key to an authorising computer; (b) Establishing a communication link between the authorising computer and at least one receiver remote from the computer, the communication link is not constrained by being a secure link; (c) Receiving, at the receiver, at least one acoustic signal representative of at least one private key-generated signal, the receiver transforming the acoustic signal to a signature signal; (d) Receiving, at the receiver, the PIN, the PIN being received separately from the acoustic signal; (e) Encrypting the signature signal with the PIN to render an encrypted signature signal; and (f) Sending the encrypted signature signal to the authorising computer for verification of the signature using the PIN and confidential public key.

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