fix(security): store salted hash of deviceId instead of plaintext UUID#546
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- Replace localStorage plaintext UUID storage with salted hash - Add per-session salt stored in sessionStorage - Add synchronous hash function for device identity - Update tests to verify hashed storage behavior Closes MettaChain#448
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Summary
\getSecurityDeviceId()\ was storing the raw device UUID in localStorage, making the device fingerprint reusable for impersonation across sessions.
Changes
Tests
Closes #448
closes #431
closes #442
closes #439