Server-Supported Decryption for Mobile Devices

ePrint Report: Server-Supported Decryption for Mobile Devices

Johanna Maria Kirss, Peeter Laud, Nikita Snetkov, Jelizaveta Vakarjuk

We propose a threshold encryption scheme with two-party decryption, where one of the keyshares may be stored and used in a device that is able to provide only weak security for it. We state the security properties the scheme needs to have to support such use-cases, and construct a scheme with these properties.

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