xero

@[email protected]
213 Followers
27 Following
401 Posts
{h,cr,sl}acker 💾🏴‍☠️
https://backrooms.quest ≈ https://windows98.website
xero.stylehttps://xero.style
x-e.rohttps://x-e.ro
0w.nzhttps://0w.nz
windows98.computerhttp://www.windows98.computer
xero1d ago

https://github.com/xero/leviathan-crypto/
leviathan-crypto v1.4.0

XChaCha20Seal: bind key, call encrypt(), done! fresh nonce every call w/ no management needed.

XChaCha20StreamSealer: chunked AEAD for large payloads w/ per-chunk nonces and position binding.

bun i leviathan-crypto
(on npm you pleb)

GitHub - xero/leviathan-crypto: Zero-dependency WebAssembly cryptography library for TypeScript, featuring the paranoia of Serpent-256 and the elegance of XChaCha20-Poly1305, with SHA-2/3, HMAC, HKDF, and Fortuna CSPRNG included. All cryptographic computation runs in WASM, outside the JavaScript JIT, behind a strictly typed API built on vector-verified primitives.

Zero-dependency WebAssembly cryptography library for TypeScript, featuring the paranoia of Serpent-256 and the elegance of XChaCha20-Poly1305, with SHA-2/3, HMAC, HKDF, and Fortuna CSPRNG include...

GitHub
Show threadxero1d ago
powered by https://github.com/xero/leviathan-crypto
GitHub - xero/leviathan-crypto: Zero-dependency WebAssembly cryptography library for TypeScript, featuring the paranoia of Serpent-256 and the elegance of XChaCha20-Poly1305, with SHA-2/3, HMAC, HKDF, and Fortuna CSPRNG included. All cryptographic computation runs in WASM, outside the JavaScript JIT, behind a strictly typed API built on vector-verified primitives.

Zero-dependency WebAssembly cryptography library for TypeScript, featuring the paranoia of Serpent-256 and the elegance of XChaCha20-Poly1305, with SHA-2/3, HMAC, HKDF, and Fortuna CSPRNG include...

GitHub
xero1d ago

npmjs.com/package/lvthn
v1.3.1 with cli worker pooling & wasm simd optimization!

bun i -g lvthn # or npm install
lvthn keygen --armor -o my.key
cat secret.txt | lvthn encrypt -k my.key --armor > secret.enc

supports: serpent-256 (ctr mode w/ hmac-sha256) & xchacha20-poly1305

---

key derivation: scrypt (N=32768, r=8, p=1) for passphrases → 32-byte master key with a fresh random 32-byte salt per encryption.

integrity: any modification to a ciphertext chunk causes that chunk's authentication to fail. The entire decryption is rejected with no partial plaintext produced.

parallelism: encryption and decryption distribute 64KB chunks across a worker pool sized to hardwareConcurrency. Each worker owns an isolated WASM instance with no shared memory between workers.

4-wide inter-block SIMD (encryptChunk_simd): each v128 register lane holds word w from a different block (counters ctr, ctr+1, ctr+2, ctr+3). Same parallelism model as ChaCha20 CTR-4.

Show threadxero5d ago
crypto library hype post must read like total nerd word salad to normies
xero5d ago
https://github.com/xero/leviathan-crypto/releases/tag/v1.2.0
leviathan-crypto v1.20: bringing WebAssembly SIMD acceleration to serpent-256 and ChaCha20. inter-block 4-wide parallelism delivering 2–3x single-thread throughput gains across V8, SpiderMonkey, and JSC!
https://npmjs.com/package/leviathan-crypto
Release v1.2.0 WASM SIMD · xero/leviathan-crypto

WebAssembly SIMD acceleration for Serpent-256 and ChaCha20. Inter-block 4-wide parallelism delivering 2–3× single-thread throughput gains across V8, SpiderMonkey, and JSC. 11 commits since v1.1.0 ·...

GitHub
xero6d ago
https://github.com/xero/leviathan-crypto/wiki/security_policy
im trying to write the best security policy i can for this project. suggestions welcomed.
security_policy

Zero-dependency WebAssembly cryptography library for TypeScript: Serpent-256, XChaCha20-Poly1305, SHA-2/3, HMAC, HKDF, and Fortuna CSPRNG, with a strictly typed API built on vector-verified primiti...

GitHub
xero6d ago
i think these public attestation signing are cool for published artifacts. does anyone else?
https://search.sigstore.dev/?logIndex=1187915865
created from this release
https://github.com/xero/leviathan-crypto/releases/tag/v1.1.0
Rekor Search

Search the Rekor public transparency log

xeroMar 25
what? you dont put gifs in your prs?
xeroMar 21

https://leviathan.3xi.club

made a little demo site for my crypto lib. web file encryption, chat, and cli tools

leviathan-crypto

xeroMar 19

shoutout to bunjs! these single-file executable bins are so hype! watch me install my new crypto lib and build the cli tool in under 0.1s, then watch my demo tool use XChaCha20Poly1305 to encrypt and decrypt a 1gb file in 2s ;D

typescript and wasm in the shell? yes indeed.

https://github.com/xero/leviathan-crypto