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@piplabs/cdr-crypto

v0.2.1

Published

Cryptographic primitives for the CDR (Confidential Data Rails) protocol on Story L1: TDH2 threshold encryption (via WASM), ECIES partial decryption, validator partial-signature verification, and file encryption.

Downloads

1,518

Vulnerabilities

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Links

Git

Maintainers

lucas2brhlucas2brhyingyangxu2026yingyangxu2026story_jinnstory_jinnvinod.tiwarivinod.tiwari

Keywords

Readme

@piplabs/cdr-crypto

Cryptographic primitives for the CDR (Confidential Data Rails) protocol on Story L1: TDH2 threshold encryption (via WASM), ECIES partial decryption, validator partial-signature verification, and file encryption.

This package is a building block for @piplabs/cdr-sdk. Most users should install the SDK instead — it re-exports everything from this package.

Install

npm install @piplabs/cdr-crypto

Exports

  • tdh2Encrypt, tdh2Verify, tdh2Combine, tdh2ExtractLabel — TDH2 threshold encryption (implementation in WASM)
  • decryptPartial, generateEphemeralKeyPair — ECIES helpers used to receive partial decryptions
  • verifyPartialSignature — secp256k1 ECDSA verification of a validator's partial-decryption signature (RLP encode the response fields, keccak256, recover, address compare against commPubKey)
  • encryptFile, decryptFile — AES-256-GCM single-pass file encryption (Uint8Array in / Uint8Array out, ciphertext format: IV || encrypted || GCM tag)
  • initWasm, resetWasm, getWasm, setWasmForTesting, CURVE_ED25519 — WASM module lifecycle (must call initWasm() once before any TDH2 op)

WASM bundle

The TDH2 implementation is compiled to cb-mpc-tdh2.wasm shipped in dist/wasm/. Bundlers must be able to copy or fetch this file at runtime.

License

MIT — see LICENSE.