Blockchain Report on Nostr: Vitalik Buterin explored Diamond iO, a new privacy computing scheme merging ...
Vitalik Buterin explored Diamond iO, a new privacy computing scheme merging Attribute-Based Encryption (ABE) with Fully Homomorphic Encryption (FHE). The goal is to reduce computational overhead from "galactic" to "planetary" scale, making it comparable to Functional Encryption (FE).
Diamond iO modifies input encoding and conditional FHE decryption. While promising, it's not yet practical. Security relies on new LWE assumptions needing more study.
Key challenges: cumulative ABE/FHE overhead, low-depth circuit limits, sub-exponential security needs, and the cost of H_1. Potential optimizations include better H_1 implementation, alternative FHE schemes, ABE/FHE layer merging, and reducing proof reliance on sub-exponential security. #privacy #cryptography #blockchain #VitalikButerin
Published at
2026-07-28 22:30:21 UTCEvent JSON
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"content": "Vitalik Buterin explored Diamond iO, a new privacy computing scheme merging Attribute-Based Encryption (ABE) with Fully Homomorphic Encryption (FHE). The goal is to reduce computational overhead from \"galactic\" to \"planetary\" scale, making it comparable to Functional Encryption (FE).\n\nDiamond iO modifies input encoding and conditional FHE decryption. While promising, it's not yet practical. Security relies on new LWE assumptions needing more study.\n\nKey challenges: cumulative ABE/FHE overhead, low-depth circuit limits, sub-exponential security needs, and the cost of H_1. Potential optimizations include better H_1 implementation, alternative FHE schemes, ABE/FHE layer merging, and reducing proof reliance on sub-exponential security. #privacy #cryptography #blockchain #VitalikButerin",
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