Multisigning-protocol for robust multiple party digital signatures
    1.
    发明专利
    Multisigning-protocol for robust multiple party digital signatures 有权
    多媒体多媒体数字签名协议

    公开(公告)号:JP2011188521A

    公开(公告)日:2011-09-22

    申请号:JP2011115783

    申请日:2011-05-24

    CPC classification number: H04L9/3255 H04L9/3265 H04L9/3297 H04L2209/80

    Abstract: PROBLEM TO BE SOLVED: To provide multisigning-protocol for robust multiple party digital signatures.
    SOLUTION: Embodiments describe a system and/or method for multiple party digital signatures. According to a first aspect, the method includes: establishing a first validity range for a first key; establishing a first validity range for at least a second key; and determining if the validity range of the first key overlaps the first validity range of at least the second key. A certificate is signed with the first validity range of the first key and the first validity range of at least the second key if the validity ranges overlap. According to another embodiment, signage of the certificate is refused if the first validity range of the first key does not overlap with the first validity range of at least the second key.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:为强大的多方数字签名提供多协议协议。 实施例描述了用于多方数字签名的系统和/或方法。 根据第一方面,所述方法包括:建立第一密钥的第一有效范围; 建立至少第二个密钥的第一有效范围; 以及确定所述第一密钥的有效范围是否与至少所述第二密钥的所述第一有效范围重叠。 如果有效范围重叠,则证书具有第一密钥的第一有效范围和至少第二密钥的第一有效范围。 根据另一实施例,如果第一密钥的第一有效范围与至少第二密钥的第一有效范围不重叠,则拒绝证书的标识。 版权所有(C)2011,JPO&INPIT

    SYNCHRONIZATION TEST FOR DEVICE AUTHENTICATION

    公开(公告)号:CA2685427C

    公开(公告)日:2013-07-23

    申请号:CA2685427

    申请日:2008-03-27

    Applicant: QUALCOMM INC

    Abstract: Device authentication is based on the ability of a human to synchronize the movements of his or her fingers. A pairing procedure for two wireless devices may thus involve a synchronization test that is based on the relative timing of actuations of input devices on each of the wireless devices. In some aspects a synchronization test involves determining whether actuations of user input devices on two different wireless devices occurred within a defined time interval. In some aspects a synchronization test involves comparing time intervals defined by multiple actuations of user input devices on two wireless devices.

    3.
    发明专利
    未知

    公开(公告)号:AT505041T

    公开(公告)日:2011-04-15

    申请号:AT07868582

    申请日:2007-10-25

    Applicant: QUALCOMM INC

    Abstract: Prior to transmission, a message is divided into multiple transmission units. A sub-message authentication code is obtained for each of the transmission units. A composed message authentication code is obtained for the whole message based on the sub-message authentication codes of the multiple transmission units. The multiple transmission units and the composed message authentication code are then transmitted. A receiver of the message receives a plurality of transmission units corresponding to the message. A local sub-message authentication code is calculated by the receiver for each transmission unit. A local composed message authentication code is calculated by the receiver based on the local sub-message authentication codes for the plurality of transmission units. The local composed message authentication code is compared to a received composed message authentication code to determine the integrity and/or authenticity of the received message.

    ЗАЩИЩЕННАЯ САМОНАСТРОЙКА ДЛЯ БЕСПРОВОДНОЙ СВЯЗИ

    公开(公告)号:UA91846C2

    公开(公告)日:2010-09-10

    申请号:UAA200709866

    申请日:2006-02-03

    Applicant: QUALCOMM INC

    Abstract: Предcтавленспособвзаимнойаутентификациидлязащищенногосогласованияключейобеспечениязащитыприложенийс мобильнымитерминалами, поддерживающимисяунаследованныемодулиопределенияабонента (например, SIM GSM и R-UIM CDMA2000, которыенеподдерживаютмеханизмыАКА 3G). Обменключамизапроса-ответареализуетсямеждусервернойфункциейсамонастройки (BSF) имобильнымтерминалом (МТ). BSF формируетзапросаутентификациии отправляетегонаМТсогласномеханизмуаутентифицированногосерверомоткрытогоключа. МТпринимаетзапроси определяет, исходитлиониз BSF, наосновесертификатасерверасамонастройки. МТформулируетотве

    5.
    发明专利
    未知

    公开(公告)号:AT417470T

    公开(公告)日:2008-12-15

    申请号:AT05813278

    申请日:2005-09-06

    Applicant: QUALCOMM INC

    Abstract: A communications system and method of bootstrapping mobile station authentication and establishing a secure encryption key are disclosed. In one embodiment of the communications network, a distinguished random challenge is reserved for generation of a secure encryption key, wherein the distinguished random challenge is not used for authentication of a mobile station. The distinguished random challenge is stored at a mobile station's mobile equipment and used to generate a secure encryption key, and a bootstrapping function in the network uses a normal random challenge to authenticate the mobile station and the distinguished random challenge to generate the secure encryption key.

    FIRMAS DIGITALES BASADAS EN CLAVE PUBLICA PEQUENA PARA AUTENTICACION.

    公开(公告)号:MX2007010388A

    公开(公告)日:2007-10-18

    申请号:MX2007010388

    申请日:2006-02-24

    Applicant: QUALCOMM INC

    Abstract: Las modalidades descritas permiten la autenticacion entre dos entidades que han acordado el uso de un modulo comun N; la autenticacion comprende generar de un valor de secuencia pseudo aleatorio, generar un valor de clave publica basado en el modulo N y el valor de secuencia seudo-aleatorio; generar un valor de clave privada correspondiente al valor de clave publica; recibir un valor de clave publica del verificador; y generar un valor secreto compartido con base en los modulos N, el valor de clave privada y el valor de clave publica del verificador; calcular un valor de firma de autenticacion utilizando el valor secreto compartido; y transmitir el valor de firma de autenticacion para autenticacion; cuando la firma de autenticacion es recibida, el valor de clave publica y el valor compartido son generados para calcular un valor de firma de autenticacion; posteriormente, los valores de firma de autenticacion se comparan y autentican.

    7.
    发明专利
    未知

    公开(公告)号:NO20074472L

    公开(公告)日:2007-10-08

    申请号:NO20074472

    申请日:2007-09-03

    Applicant: QUALCOMM INC

    Abstract: A mutual authentication method is provided for securely agreeing application-security keys with mobile terminals supporting legacy Subscriber Identity Modules (e.g., GSM SIM and CDMA2000 R-UIM, which do not support 3G AKA mechanisms). A challenge-response key exchange is implemented between a bootstrapping server function (BSF) and mobile terminal (MT). The BSF generates an authentication challenge and sends it to the MT under a server-authenticated public key mechanism. The MT receives the challenge and determines whether it originates from the BSF based on a bootstrapping server certificate. The MT formulates a response to the authentication challenge based on keys derived from the authentication challenge and a pre-shared secret key. The BSF receives the authentication response and verifies whether it originates from the MT. Once verified, the BSF and MT independently calculate an application security key that the BSF sends to a requesting network application function to establish secure communications with the MT.

    8.
    发明专利
    未知

    公开(公告)号:BRPI0508922A

    公开(公告)日:2007-08-14

    申请号:BRPI0508922

    申请日:2005-03-17

    Applicant: QUALCOMM INC

    Abstract: Efficient transmission of cryptographic information in secure real time protocol. A transmitting terminal may be used to encrypt data with a session key derived from a bit-stream. The bit-stream may be sent with header information to the receiving terminal. To conserve bandwidth, the information may be divided into portions, and each portion transmitted with an encrypted data packet. The receiving terminal may be used to recover the bit-stream from the information portions in the packet headers, and use the bit-stream to derive the session key. The session key may be used to decrypt the data.

    SECURE BOOTSTRAPPING FOR WIRELESS COMMUNICATIONS

    公开(公告)号:CA2597475A1

    公开(公告)日:2006-08-10

    申请号:CA2597475

    申请日:2006-02-03

    Applicant: QUALCOMM INC

    Abstract: A mutual authentication method is provided for securely agreeing application-security keys with mobile terminals supporting legacy Subscriber Identity Modules (e.g., GSM SIM and CDMA2000 R-UIM, which do not support 3G AKA mechanisms). A challenge-response key exchange is implemented between a bootstrapping server function (BSF) and mobile terminal (MT). The BSF generates an authentication challenge and sends it to the MT under a server-authenticated public key mechanism. The MT receives the challenge and determines whether it originates from the BSF based on a bootstrapping server certificate. The MT formulates a response to the authentication challenge based on keys derived from the authentication challenge and a pre-shared secret key. The BSF receives the authentication response and verifies whether it originates from the MT. Once verified, the BSF and MT independently calculate an application security key that the BSF sends to a requesting network application function to establish secure communications with the MT.

    Efficient transmission of cryptographic information in secure real time protocol

    公开(公告)号:AU2005223962A1

    公开(公告)日:2005-09-29

    申请号:AU2005223962

    申请日:2005-03-17

    Applicant: QUALCOMM INC

    Abstract: Efficient transmission of cryptographic information in secure real time protocol. A transmitting terminal may be used to encrypt data with a session key derived from a bit-stream. The bit-stream may be sent with header information to the receiving terminal. To conserve bandwidth, the information may be divided into portions, and each portion transmitted with an encrypted data packet. The receiving terminal may be used to recover the bit-stream from the information portions in the packet headers, and use the bit-stream to derive the session key. The session key may be used to decrypt the data.

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