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Re:Ask HN: What's your favorite elegant/beautiful algorithm? by furicane on Wednesday October 17, 2018 @05:10AM (#18237391)
Shamir's Secret Sharing. I don't have a smart description, it's just wonderful. Split the secret in N parts, require N - K parts to reconstruct it. Use cases are numerous.
Re:Ask HN: What's your favorite elegant/beautiful algorithm? by andrewflnr on Wednesday October 17, 2018 @12:09PM (#18240452)
SSS is one of my favorites because it takes concepts I learned from basic algebra, transliterates then to finite fields, and turns them directly into industrial-grade crypto.