HkdfSha256 | /core/mod.ts | hpke@1.2.9

A Hybrid Public Key Encryption (HPKE) module built on top of Web Cryptography API.

Latest

class HkdfSha256

extends HkdfSha256Native

import { HkdfSha256 } from "https://deno.land/x/hpke@1.2.9/core/mod.ts";

The HKDF-SHA256 for HPKE KDF implementing KdfInterface.

When using @hpke/core, the instance of this class must be specified to the kem parameter of CipherSuiteParams instead of KdfId.HkdfSha256.

The KDF class can only derive keys of the same length as the hashSize. If you want to derive keys longer than the hashSize, please use hpke-js#CipherSuite.

Examples

Example 1

import {
  Aes128Gcm,
  CipherSuite,
  DhkemP256HkdfSha256,
  HkdfSha256,
} from "http://deno.land/x/hpke/core/mod.ts";

const suite = new CipherSuite({
  kem: new DhkemP256HkdfSha256(),
  kdf: new HkdfSha256(),
  aead: new Aes128Gcm(),
});