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    CVE-2025-12888 Timing Fix for Xtensa ESP32 X25519 in WolfSSL

    A subtle timing weakness in X25519 implementations that affects Xtensa-based ESP32 chips has been logged as CVE-2025-12888, and wolfSSL—one of the mainstream embedded crypto libraries—has already shipped a targeted mitigation that changes build defaults for Xtensa targets to safer, low‑memory...
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    • constant time embedded cryptography timing side channel xtensa esp32
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    • Forum: Security Alerts
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