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@dshfly/crypto

v0.1.0

Published

DSH Fly 的端到端加密与签名原语(纯 JS,Node 与 React Native 通用):

Readme

@dshfly/crypto

DSH Fly 的端到端加密与签名原语(纯 JS,Node 与 React Native 通用):

  • X25519 / Ed25519(@noble/curves)
  • ChaCha20-Poly1305(IETF, RFC 8439, @noble/ciphers)
  • HKDF-SHA256(@noble/hashes)
  • E2EE 信封 sealEnvelope / openEnvelope(协议 v2:版本字段 + 方向密钥 + Ed25519 签名 + seq/nonce 防重放)与本地加密 sealLocal / openLocal
  • ReplayGuard 滑窗防重放

安装

npm i @dshfly/crypto

快速使用

import { sealEnvelope, openEnvelope, deriveSessionKey, deriveDirectionalKeys } from '@dshfly/crypto';

const dir = deriveDirectionalKeys(sessionKey); // { up, down }
const env = sealEnvelope(dir.up, {
  fromPublicKey: phonePub,
  toPublicKey: pcPub,
  seq: 1,
  identitySecretKey: phoneSecret,
}, plaintext);

const plain = openEnvelope(dir.down, env);

加解密必须用方向密钥(dir.up / dir.down),不要直接传根会话密钥(96-bit nonce 碰撞域按方向隔离)。

License

MIT