jmestwa-coder opened a new pull request, #1439:
URL: https://github.com/apache/wicket/pull/1439

   ## Summary
   
   Replace `java.util.Random` with `SecureRandom` in cryptographic usage and 
remove hardcoded `"SHA1PRNG"`.
   
   ## Changes
   
   * Use `SecureRandom` for salt generation in `SunJceCrypt`
   * Replace `"SHA1PRNG"` with `new SecureRandom()` in 
`DefaultSecureRandomSupplier`
   
   ## Why
   
   * `Random` is predictable and not suitable for cryptographic use
   * Salt generation requires high-entropy randomness
   * Avoid hardcoded PRNG and let JVM choose the appropriate provider
   
   ## Impact
   
   * No API or behavior changes
   * Backward compatible
   * Improves randomness quality in security-sensitive paths
   


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