正则表达式以验证密码强度 [英] Regex to validate password strength
本文介绍了正则表达式以验证密码强度的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的密码强度标准如下:
My password strength criteria is as below :
- 8个字符的长度
- 2个大写字母
- 1个特殊字符
(!@#$&*)
- 2个数字
(0-9)
- 小写3个字母
- 8 characters length
- 2 letters in Upper Case
- 1 Special Character
(!@#$&*)
- 2 numerals
(0-9)
- 3 letters in Lower Case
有人可以给我正则表达式吗?必须使用密码来满足所有条件.
Can somebody please give me regex for same. All conditions must be met by password .
推荐答案
您可以使用肯定的前瞻性断言进行这些检查:
You can do these checks using positive look ahead assertions:
^(?=.*[A-Z].*[A-Z])(?=.*[!@#$&*])(?=.*[0-9].*[0-9])(?=.*[a-z].*[a-z].*[a-z]).{8}$
说明:
^ Start anchor
(?=.*[A-Z].*[A-Z]) Ensure string has two uppercase letters.
(?=.*[!@#$&*]) Ensure string has one special case letter.
(?=.*[0-9].*[0-9]) Ensure string has two digits.
(?=.*[a-z].*[a-z].*[a-z]) Ensure string has three lowercase letters.
.{8} Ensure string is of length 8.
$ End anchor.
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