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import type { RsaEsDecryptFunction, RsaEsEncryptFunction } from './interfaces.d.ts'import subtleAlgorithm from './subtle_rsaes.ts'import bogusWebCrypto from './bogus.ts'import crypto, { isCryptoKey } from './webcrypto.ts'import { checkEncCryptoKey } from '../lib/crypto_key.ts'import checkKeyLength from './check_key_length.ts'import invalidKeyInput from '../lib/invalid_key_input.ts'import { types } from './is_key_like.ts'
export const encrypt: RsaEsEncryptFunction = async (alg: string, key: unknown, cek: Uint8Array) => {  if (!isCryptoKey(key)) {    throw new TypeError(invalidKeyInput(key, ...types))  }  checkEncCryptoKey(key, alg, 'encrypt', 'wrapKey')  checkKeyLength(alg, key)
  if (key.usages.includes('encrypt')) {    return new Uint8Array(await crypto.subtle.encrypt(subtleAlgorithm(alg), key, cek))  }
  if (key.usages.includes('wrapKey')) {    // we're importing the cek to end up with CryptoKey instance that can be wrapped, the algorithm used is irrelevant    const cryptoKeyCek = await crypto.subtle.importKey('raw', cek, ...bogusWebCrypto)    return new Uint8Array(      await crypto.subtle.wrapKey('raw', cryptoKeyCek, key, subtleAlgorithm(alg)),    )  }
  throw new TypeError(    'RSA-OAEP key "usages" must include "encrypt" or "wrapKey" for this operation',  )}
export const decrypt: RsaEsDecryptFunction = async (  alg: string,  key: unknown,  encryptedKey: Uint8Array,) => {  if (!isCryptoKey(key)) {    throw new TypeError(invalidKeyInput(key, ...types))  }  checkEncCryptoKey(key, alg, 'decrypt', 'unwrapKey')  checkKeyLength(alg, key)
  if (key.usages.includes('decrypt')) {    return new Uint8Array(await crypto.subtle.decrypt(subtleAlgorithm(alg), key, encryptedKey))  }
  if (key.usages.includes('unwrapKey')) {    const cryptoKeyCek = await crypto.subtle.unwrapKey(      'raw',      encryptedKey,      key,      subtleAlgorithm(alg),      ...bogusWebCrypto,    )
    return new Uint8Array(await crypto.subtle.exportKey('raw', cryptoKeyCek))  }
  throw new TypeError(    'RSA-OAEP key "usages" must include "decrypt" or "unwrapKey" for this operation',  )}