Abstract:

AMPC is a new, encryption free anonymizing network that is efficient to use, and does not require the use of conventional cryptography by the users of the network. The AMPC (Anonymous MultiParty Computation) method uses a variation of Chaum's mixes that utilizes value-splitting to hide inputs, and is secure as long as less then a square root of the servers in the network are compromised. On top of AMPC we have built a new e-Voting protocol, which also does not require the users to use any conventional cryptography, thus 'freeing' the users from the need to rely on the security and integrity of the workstations they use to perform the actual voting. The protocol also provides the voter with a receipt, that ensures the voter that his vote was actually received by the tallier. This new e-Voting protocol uses a new weak signatures building block ('enhanced check vectors') as well as AMPC.

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