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    SECURE TRANSACTION UNIT, TOKEN REFERENCE REGISTER, ELECTRONIC PAYMENT TRANSACTION SYSTEM AND METHOD FOR REGISTERING OF TOKEN
    1.
    发明公开
    SECURE TRANSACTION UNIT, TOKEN REFERENCE REGISTER, ELECTRONIC PAYMENT TRANSACTION SYSTEM AND METHOD FOR REGISTERING OF TOKEN 审中-公开

    公开(公告)号：EP4451192A1

    公开(公告)日：2024-10-23

    申请号：EP23020191.5

    申请日：2023-04-20

    申请人： Giesecke+Devrient advance52 GmbH

    发明人： Hupel, Lars

    IPC分类号： G06Q20/06 ,  G06Q20/10 ,  G06Q20/22 ,  G06Q20/36 ,  G06Q20/38

    摘要： The invention relates to a secure transaction unit (TU) for managing payment transactions in an electronic payment transaction system (TS), the secure transaction unit (TU) comprising: means for receiving and transmitting one or more tokens (T) to one or more other secure transaction unit (TU) in the electronic payment transaction system (TS) to cause an exchange of the one or more tokens (T) between secure transaction units (TU) in the electronic transaction system (TS), wherein each token (T) comprises at least a monetary value (v) and a private key (r) of a token-individual key pair; means for transmitting one or more registration requests (RR) to a token reference register (T-Reg) of the electronic transaction system (TS), wherein each registration request (RR) comprises one or more token references (TR) to be stored in the token reference register (T-Reg), each token reference (TR) being uniquely assigned to a token (T) in the electronic payment transaction system (TS); wherein one or more token references (TR) of a registration request (RR) comprises the monetary value (v) of the assigned token (T), a reference, preferably a public key (R) corresponding to the private key (r) of the token-individual key pair, and a transaction unit group identifier (TUGI) as token reference elements. The invention also relates to a token reference register. The invention also relates to an electronic transaction system in particular an electronic payment transaction system. The invention also relates to a method for registering tokens in a token reference register.

    PROTECTION OF A KEY ENCAPSULATION MECHANISM, KEM, AGAINST FAULT INJECTION ATTACKS
    2.
    发明公开
    PROTECTION OF A KEY ENCAPSULATION MECHANISM, KEM, AGAINST FAULT INJECTION ATTACKS 审中-公开

    公开(公告)号：EP4436092A1

    公开(公告)日：2024-09-25

    申请号：EP23020145.1

    申请日：2023-03-21

    申请人： Giesecke+Devrient Mobile Security Germany GmbH

    发明人： Guillen Hernandez, Oscar

    IPC分类号： H04L9/00 ,  H04L9/08

    CPC分类号： H04L9/004 ,  H04L9/0825

    摘要： A first processing entity, comprising an implementation covering at least a Key Decapsulation Phase of a Key Encapsulation Mechanism, KEM, constructed to share a key to be shared between a second processing entity and said first processing entity, wherein the first processing entity, when executing the implementation of the Key Decapsulation Phase, executes a decapsulation method, the decapsulation method is characterized in that the decapsulation method comprises: a decapsulation count mechanism coupled to or integrated into the Key Decapsulation Phase of the KEM, comprising steps to: (i) detect and count and store in the processing entity decapsulation errors occurring when the Key Decapsulation Phase is executed, and (ii) when the count of decapsulation errors reaches or exceeds a predefined count limit, initiate an error measure.