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public:research:main [2024-01-18 15:50] – [Security of cryptographic hardware (smartcards, TPMs...)] xjancar | public:research:main [2024-01-18 15:50] – [Secure Multiparty Computation on limited devices] xjancar |
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In the past, we were systematically analyzing standardized elliptic curves. Lately, we have been mainly focusing on ECC with respect to side-channel attacks and the involvement of elliptic curves in the Bitcoin protocol. | In the past, we were systematically analyzing standardized elliptic curves. Lately, we have been mainly focusing on ECC with respect to side-channel attacks and the involvement of elliptic curves in the Bitcoin protocol. |
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With the use of secure multi-party computation, the risk of vulnerable implementations can be mitigated. Secure multi-party computation allows for splitting of the secret key among multiple devices, which partake in an interactive protocol to perform cryptographic operations. The complete secret key is never reconstructed during this protocol, so if at least one of the devices remains uncorrupted, the secret key is not exposed. Our research focuses on secure multi-party computation executed on the specialized cryptographic devices, which bring interesting constraints to protocol design and implementation. | With the use of secure multi-party computation, the risk of vulnerable implementations can be mitigated. Secure multi-party computation allows for splitting of the secret key among multiple devices, which partake in an interactive protocol to perform cryptographic operations. The complete secret key is never reconstructed during this protocol, so if at least one of the devices remains uncorrupted, the secret key is not exposed. Our research focuses on secure multi-party computation executed on the specialized cryptographic devices, which bring interesting constraints to protocol design and implementation. |
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