Mega 用户认证加密系统文件下载https://assets.lacus.site/Document/SecurityWhitepaper.pdf
TODO
Method to Protect Passwords in Databases for Web Applications
注册过程密码评分密码使用 ZXCVBN password strength estimator library (v4.4.2), 进行密码评分,评分结果在0-4之间
密码至少需要有八位,因为即使过短的密码也可能获取到1的评分
针对评分需要给用户合适的提醒
Length < 8 Too short
Score 0 and Length >= 8 Too weak
Score 1 and Length >= 8 Weak
Score 2 and Length >= 8 Medium
Score 3 and Length >= 8 Good
Score 4 and Length >= 8 Strong密码处理Password Processing Function (PPF