Cryptographers Cancel Election Results After Losing Decryption Key

The International Association of Cryptologic Research (IACR) was forced to cancel its leadership election after a trustee lost their portion of the Helios voting system's decryption key, making it impossible to reveal or verify the final results. Ars Technica reports: The IACR said Friday that the votes were submitted and tallied using Helios, an open source voting system that uses peer-reviewed cryptography to cast and count votes in a verifiable, confidential, and privacy-preserving way. Helios encrypts each vote in a way that assures each ballot is secret. Other cryptography used by Helios allows each voter to confirm their ballot was counted fairly. "Unfortunately, one of the three trustees has irretrievably lost their private key, an honest but unfortunate human mistake, and therefore cannot compute their decryption share," the IACR said. "As a result, Helios is unable to complete the decryption process, and it is technically impossible for us to obtain or verify the final outcome of this election." The IACR will switch to a two-of-three private key system to prevent this sort of thing from happening again. Moti Yung, the trustee responsible for the incident, has resigned and is being replaced by Michael Abdalla.

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