Security Cryptography Whatever
@scwpod.bsky.social
@durumcrustulum.com, @sockpuppet.org, @dadrian.io
“Freewheelin’ dynamic”.
https://securitycryptographywhatever.com
https://podcasts.apple.com/us/podcast/feed/id1578405214
“Freewheelin’ dynamic”.
https://securitycryptographywhatever.com
https://podcasts.apple.com/us/podcast/feed/id1578405214
Reposted by Security Cryptography Whatever
Threshold decryption.... I struggled with that one and still do. Obviously it's a point of fragility to allow one lost share to cancel the election. But true DKG with parties spread across the world is also not obviously easy to implement.
December 31, 2025 at 2:29 PM
Threshold decryption.... I struggled with that one and still do. Obviously it's a point of fragility to allow one lost share to cancel the election. But true DKG with parties spread across the world is also not obviously easy to implement.
Reposted by Security Cryptography Whatever
Yes, it's finite fields, in large part because implementing over elliptic curves, especially with proper hashing for NIZKs, was more complexity than I could handle. Would likely make sense to upgrade to EC at some point but also probably not a huge priority? Happy to hear counter arguments!
December 31, 2025 at 2:29 PM
Yes, it's finite fields, in large part because implementing over elliptic curves, especially with proper hashing for NIZKs, was more complexity than I could handle. Would likely make sense to upgrade to EC at some point but also probably not a huge priority? Happy to hear counter arguments!
Reposted by Security Cryptography Whatever
Yes, Helios definitely uses NIZKs to prove proper ballot form. Implemented in 2008 browser JavaScript, which was a fun challenge.
December 31, 2025 at 2:29 PM
Yes, Helios definitely uses NIZKs to prove proper ballot form. Implemented in 2008 browser JavaScript, which was a fun challenge.
Reposted by Security Cryptography Whatever
I abandoned mixnets in Helios v2+ in favor of homomorphic aggregation because of the operational complexity of mixnets.
Explained in the 2009 paper:
csrc.nist.gov/csrc/media/e...
Explained in the 2009 paper:
csrc.nist.gov/csrc/media/e...
December 31, 2025 at 2:29 PM
I abandoned mixnets in Helios v2+ in favor of homomorphic aggregation because of the operational complexity of mixnets.
Explained in the 2009 paper:
csrc.nist.gov/csrc/media/e...
Explained in the 2009 paper:
csrc.nist.gov/csrc/media/e...
Reposted by Security Cryptography Whatever
Transcript: securitycryptographywhatever.com/2025/07/29/v...
Vegas, Baby!
We’re throwing a party in Vegas! Someone called it SCWPodCon last year, and the name stuck. It’s sponsored by Teleport, the infrastructure identity company. ...
securitycryptographywhatever.com
July 29, 2025 at 12:59 PM
Transcript: securitycryptographywhatever.com/2025/07/29/v...
Reposted by Security Cryptography Whatever
Come to SCWPodCon, sponsored by Teleport! securitycryptographywhatever.com/events/black...
SCWPodCon BlackHat 2025
"Security Cryptography Whatever" is hosting a party during BlackHat USA, brought to you by Teleport! Get tickets now!
securitycryptographywhatever.com
July 29, 2025 at 12:59 PM
Come to SCWPodCon, sponsored by Teleport! securitycryptographywhatever.com/events/black...
Transcript: securitycryptographywhatever.com/2025/07/29/v...
Vegas, Baby!
We’re throwing a party in Vegas! Someone called it SCWPodCon last year, and the name stuck. It’s sponsored by Teleport, the infrastructure identity company. ...
securitycryptographywhatever.com
July 29, 2025 at 12:59 PM
Transcript: securitycryptographywhatever.com/2025/07/29/v...
Come to SCWPodCon, sponsored by Teleport! securitycryptographywhatever.com/events/black...
SCWPodCon BlackHat 2025
"Security Cryptography Whatever" is hosting a party during BlackHat USA, brought to you by Teleport! Get tickets now!
securitycryptographywhatever.com
July 29, 2025 at 12:59 PM
Come to SCWPodCon, sponsored by Teleport! securitycryptographywhatever.com/events/black...