英文:
Springboot-Logback: Mask SSN last four Digits
问题
我正在尝试在我的Spring Boot应用程序中使用Logback.xml来屏蔽敏感信息，如社保号和信用卡信息。我在网上搜索了各种链接，但找不到好的解决方案。是否有一种简单的方法或任何库可以在日志中屏蔽敏感信息？
输入
{"firstName":"John","lastName":"Doe","SSN":123456789}
输出：
{"firstName":"John","lastName":"Doe","SSN":12345****}
并在Stack Overflow上找到了这个问题，但难以理解正则表达式。任何帮助将不胜感激。
https://stackoverflow.com/questions/25277930/mask-sensitive-data-in-logs-with-logback
英文:
I am trying to mask sensitive information like SSN and Credit card in my Spring boot application using Logback.xml. I searched various links in web, but could not find good solution.Is there a simple-way or any library to mask the sensitive information in logs?
Input
{"firstName":"John","lastName":"Doe","SSN":123456789}
output:
{"firstName":"John","lastName":"Doe","SSN":12345****}
And found this on stack overflow but trouble figuring out regex.Any help would be greatly appreciated
https://stackoverflow.com/questions/25277930/mask-sensitive-data-in-logs-with-logback
答案1
得分: 1
你可以尝试使用 String.ReplaceAll(String regex, String replacement)。正则表达式应该只匹配 SSN 的前5位数字，保留它们并替换其他内容。由于我们知道每个 SSN 只有9位数字，所以可以这样捕获前5位：
String rgx = "([0-9]{5})[0-9]*";
我们将前5位数字捕获到一个组中，然后可以在 ReplaceAll() 中使用 $1 引用该组。我们不关心后面有多少位数字，所以只需使用 [0-9]* 来匹配剩余部分。在我们使用 $1 引用了前5位数字后，只需用 **** 替换其他内容。
结果：
String baseSSN = "123456789";
String rgx = "([0-9]{5})[0-9]*";
String modifiedSSN = baseSSN.ReplaceAll(rgx, "$1****"); //modifiedSSN = 12345****
你可以在 这里 尝试修改正则表达式。
英文:
You could try using String.ReplaceAll(String regex, String replacement). The regex would want to just match the first 5 digits of the SSN, keep them, and replace everything else. Since we know that every SSN is only 9 digits, just capture the first 5 like so:
String rgx = "([0-9]{5})[0-9]*";
We capture the first 5 in a group, we can then reference that group in ReplaceAll() with $1. We don't care how many digits are after it, so just use [0-9]* to match the rest. After we reference the first 5 digits with $1, just replace everything else with ****.
The result:
String baseSSN = "123456789";
String rgx = "([0-9]{5})[0-9]*";
String modifiedSSN = baseSSN.ReplaceAll(rgx, "$1****"); //modifiedSSN = 12345****
You can mess with the regex here.
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