#data-masking code explainers

java

public final class SensitiveDataMasker {
 
    private static final Pattern CARD_NUMBER = Pattern.compile("\\b(?:\\d[ -]*?){13,19}\\b");
    private static final Pattern EMAIL = Pattern.compile("[A-Za-z0-9._%+-]+@([A-Za-z0-9.-]+\\.[A-Za-z]{2,})");

Masking sensitive data with regex in Java

regex data-masking luhn-algorithm

Intermediate 8 steps

typescript

type Masker = (value: string) => string;
 
const maskEmail: Masker = (value) => {
  const [local, domain] = value.split("@");

Recursively masking sensitive data for logs

recursion regex data-masking

Intermediate 9 steps

ruby

require 'json'
require 'set'
 
class SensitiveScrubber

Recursively scrubbing secrets from JSON

recursion data-masking pattern-matching

Intermediate 7 steps