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Today: 1,008 launches · Niche of the day: specialized calculation tools · See what launched today →

Rscrypto, pure-Rust crypto with industry leading public benches

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HN · launched Jun 3, 2026 · 33 upvotes (top 20%) · 0 views

Niche: encryption and cryptography tools · 147 launches, 21 in the last 7 days ▲ +40% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

No Writing a pure-Rust cryptographic library that outperforms established implementations requires specialized expertise in constant-time algorithms, assembly optimizations (SIMD/AVX-512), and rigorous cryptanalysis to prevent side-channel leaks.

What it would actually take: Building competitive cryptography requires deep mathematical and security domain knowledge, implementing primitives (AES, ChaCha20, SHA, Curve25519) with hand-crafted SIMD vector assembly. The codebase must undergo formal verification, side-channel analysis (timing attacks, power analysis), and extensive fuzzing against standard test vectors. A solo vibe coder cannot ensure both cryptographic security and top-tier hardware-level performance.

Discussion

15 comments analyzed.

Competitors mentioned: aws-lc-rs, ring, RustCrypto, blake3 crate, OpenSSL

Concerns raised: Lacks third-party audit before production use, Incomplete constant-time implementation across all primitives, LLM-generated code and documentation quality concerns, Code duplication in SHA variants creates maintenance/audit burden, Potential performance gains from missing constant-time properties

Feature requests: Constant-time matrix documentation replacing compressed line, Reduce wrapper/finalization code duplication in SHA implementations, Expand Wycheproof test vector coverage beyond RSA

Competitors

Other products that read as similar to this one : 851 launches clear the similarity bar, closest 8 shown.

Attention rank: #145 of 852 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 216 days after the earliest competitor.

  • Bitcoin-rs · hn · 2026-11-03 · 10 upvotes · similarity 0.64
  • polyxor · github · 2026-09-26 · 53 upvotes · similarity 0.58
  • RawLink · github · 2026-10-19 · 20 upvotes · similarity 0.57
  • flash-crypto-generator · github · 2026-11-04 · 139 upvotes · similarity 0.56
  • 8cryptdo · github · 2026-09-26 · 11 upvotes · similarity 0.53
  • psstpsst · github · 2026-09-12 · 8 upvotes · similarity 0.53
  • witness-vault · github · 2026-10-01 · 26 upvotes · similarity 0.53
  • CipherTEA · ph · 2026-11-10 · 2 upvotes · similarity 0.53

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.