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…nd session management This PR addresses several security concerns across the JFramework library: 1. **Mitigation of Timing Attacks**: Replaced standard string comparisons (`equals`, `equalsIgnoreCase`) with `java.security.MessageDigest.isEqual` for sensitive data including password hashes, security tokens, and session identifiers. This ensures constant-time comparisons and protects against side-channel timing attacks. 2. **Standardized Character Encoding**: Enforced `StandardCharsets.UTF_8` for all cryptographic operations and string-to-byte conversions, removing dependency on platform-default charsets. 3. **Session Hardening**: Enhanced `ServletManager` session cookie protection by incorporating a secret `encryptionkey` (from `configuration.properties`) into the `JFRAMEWORKSESSIONID` generation logic. This prevents session IDs from being predictable based only on client-side attributes. A fallback mechanism is included to ensure reliability if the configuration is missing. 4. **SecureRandom Optimization**: Updated `RandomStringGenerator` to use a single static `SecureRandom` instance for all random string generation, following Java security best practices for performance and entropy management. 5. **Repository Hygiene**: Updated `.gitignore` to exclude test-generated artifacts (`logfileConf.txt`, etc.) to prevent accidental leakage of sensitive log data. Verified with `mvn test`. All tests passed. 🛡️ Sentinel: Protecting the codebase one fix at a time. Co-authored-by: richkmeli <7313162+richkmeli@users.noreply.github.com>
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Strengthen cryptographic operations and session management in JFramework. Fixes timing attacks, enforces UTF-8, hardens session cookies, and optimizes SecureRandom usage.
PR created automatically by Jules for task 9778377305458048646 started by @richkmeli