import CryptoJS from 'crypto-js'
export default {
  // 加密
  encrypt(word) {
    let key = 'AD42F7787B035B7580000EF93BE20BAD'
    let iv = 'AD42F7787B035B75'

    key = CryptoJS.enc.Utf8.parse(key)
    iv = CryptoJS.enc.Utf8.parse(iv)

    const srcs = CryptoJS.enc.Utf8.parse(word)
    // 加密模式为CBC，补码方式为PKCS5Padding（也就是PKCS7）
    const encrypted = CryptoJS.AES.encrypt(srcs, key, {
      iv: iv,
      mode: CryptoJS.mode.CBC,
      padding: CryptoJS.pad.Pkcs7
    })

    // 返回base64
    return CryptoJS.enc.Base64.stringify(encrypted.ciphertext)
  },
  // 解密
  decrypt(word, keyStr, ivStr) {
    keyStr = keyStr || 'AD42F7787B035B7580000EF93BE20BAD'
    ivStr = ivStr || 'AD42F7787B035B75'
    var key = CryptoJS.enc.Utf8.parse(keyStr)
    const iv = CryptoJS.enc.Utf8.parse(ivStr)

    var decrypt = CryptoJS.AES.decrypt(word, key, {
      iv,
      mode: CryptoJS.mode.CBC,
      padding: CryptoJS.pad.ZeroPadding
    })
    return decrypt.toString(CryptoJS.enc.Utf8)
  }
}