存档：TS 重构前基线（lx 聚合源 = isolated-vm 加载器，签名方案已移除）

musicSdk/wy/utils/crypto.js

@@ -0,0 +1,54 @@
+// https://github.com/Binaryify/NeteaseCloudMusicApi/blob/master/util/crypto.js
+import { createCipheriv, createDecipheriv, publicEncrypt, randomBytes, createHash, constants } from 'crypto'
+const iv = Buffer.from('0102030405060708')
+const presetKey = Buffer.from('0CoJUm6Qyw8W8jud')
+const linuxapiKey = Buffer.from('rFgB&h#%2?^eDg:Q')
+const base62 = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+const publicKey = '-----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDgtQn2JZ34ZC28NWYpAUd98iZ37BUrX/aKzmFbt7clFSs6sXqHauqKWqdtLkF2KexO40H1YTX8z2lSgBBOAxLsvaklV8k4cBFK9snQXE9/DDaFt6Rr7iVZMldczhC0JNgTz+SHXT6CBHuX3e9SdB1Ua44oncaTWz7OBGLbCiK45wIDAQAB\n-----END PUBLIC KEY-----'
+const eapiKey = 'e82ckenh8dichen8'
+
+const aesEncrypt = (buffer, mode, key, iv) => {
+  const cipher = createCipheriv(mode, key, iv)
+  return Buffer.concat([cipher.update(buffer), cipher.final()])
+}
+
+const aesDecrypt = function(cipherBuffer, mode, key, iv) {
+  let decipher = createDecipheriv(mode, key, iv)
+  return Buffer.concat([decipher.update(cipherBuffer), decipher.final()])
+}
+
+const rsaEncrypt = (buffer, key) => {
+  buffer = Buffer.concat([Buffer.alloc(128 - buffer.length), buffer])
+  return publicEncrypt({ key, padding: constants.RSA_NO_PADDING }, buffer)
+}
+
+export const weapi = object => {
+  const text = JSON.stringify(object)
+  const secretKey = randomBytes(16).map(n => (base62.charAt(n % 62).charCodeAt()))
+  return {
+    params: aesEncrypt(Buffer.from(aesEncrypt(Buffer.from(text), 'aes-128-cbc', presetKey, iv).toString('base64')), 'aes-128-cbc', secretKey, iv).toString('base64'),
+    encSecKey: rsaEncrypt(secretKey.reverse(), publicKey).toString('hex'),
+  }
+}
+
+export const linuxapi = object => {
+  const text = JSON.stringify(object)
+  return {
+    eparams: aesEncrypt(Buffer.from(text), 'aes-128-ecb', linuxapiKey, '').toString('hex').toUpperCase(),
+  }
+}
+
+
+export const eapi = (url, object) => {
+  const text = typeof object === 'object' ? JSON.stringify(object) : object
+  const message = `nobody${url}use${text}md5forencrypt`
+  const digest = createHash('md5').update(message).digest('hex')
+  const data = `${url}-36cd479b6b5-${text}-36cd479b6b5-${digest}`
+  return {
+    params: aesEncrypt(Buffer.from(data), 'aes-128-ecb', eapiKey, '').toString('hex').toUpperCase(),
+  }
+}
+
+export const eapiDecrypt = cipherBuffer => {
+  return aesDecrypt(cipherBuffer, 'aes-128-ecb', eapiKey, '').toString()
+}