const Service = require("egg").Service;
const SHA256 = require("sha256");

class UtilsService extends Service {
  //密码加密
  async encodePwd(password, params, bol) {
    let newPassword = "";
    if (bol) {
      let newPasswordTemp = SHA256(params.userName + params.salt + password);
      newPassword = SHA256(newPasswordTemp + params.challenge);
      for (let n = 2; params.iIterate > n; n++) {
        newPassword = SHA256(newPassword);
      }
    } else {
      newPassword = SHA256(password) + params.challenge;
      for (let n = 1; params.iIterate > n; n++) {
        newPassword = SHA256(newPassword);
      }
    }
    return newPassword;
  }
}

module.exports = UtilsService;