[dgarske]

Description

This PR moves the wc_NoiseSrc_* noise-source layer (WOLFSSL_NOISE_SRC) out of random.c/random.h and into a new rng_noisesrc.c/rng_noisesrc.h, which sit outside the FIPS module boundary. wolfentropy.c/wolfentropy.h are unchanged.

• The noise source adopts wolfEntropy semantics: sliding-window APT, SHA3-256 conditioner, and reset-and-retry on a health-test failure (the failing source reruns its startup test on the next call) in place of the latched failure and the dropped-source mask.
• Its Repetition Count and Adaptive Proportion tests keep per-source state in a wc_NoiseHealth struct; they follow wolfEntropy's algorithm but are a separate implementation, so the MemUse source is untouched.
• A zero hmin, margin, cutoff, window or startupOctets selects the wolfEntropy default values; the C2000 port keeps its own cutoffs.
• WOLFSSL_C2000_ENTROPY now implies WOLFSSL_NOISE_SRC from settings.h.

Testing

• New --enable-noisesrc configure option enables the noise source and forces SHA-3 on. CMake builds rng_noisesrc.c unconditionally, as it is self-gated.
• noisesrc_test gains startup-rerun, recovery, defaults and validation cases, and both KATs move to SHA3-256.
• New noisesrc_host CI job runs make check with --enable-noisesrc --enable-all; IDE/C2000/compile.sh compiles rng_noisesrc.c under WOLFSSL_C2000_ENTROPY.
• Doxygen entries for the wc_NoiseSrc_* API; IDE/C2000/README.md updated.

[github-actions]

MemBrowse Memory Report · Explore what changed →

zephyr-frdm_rw612

• FLASH: log_const_area -8 B, rodata -8 B, text +1,576 B (+0.6%, 284,024 B / 67,108,864 B, total: 0% used)

No memory changes detected for:

• gcc-arm-cortex-m0plus
• gcc-arm-cortex-m3
• gcc-arm-cortex-m4
• gcc-arm-cortex-m4-baremetal
• gcc-arm-cortex-m4-crypto-only
• gcc-arm-cortex-m4-dtls13
• gcc-arm-cortex-m4-min-ecc
• gcc-arm-cortex-m4-openssl-compat
• gcc-arm-cortex-m4-pkcs7
• gcc-arm-cortex-m4-pq
• gcc-arm-cortex-m4-rsa-only
• gcc-arm-cortex-m4-sp-math
• gcc-arm-cortex-m4-tls12
• gcc-arm-cortex-m4-tls13
• gcc-arm-cortex-m7
• gcc-arm-cortex-m7-pq
• gcc-arm-cortex-m7-tls13
• stm32-sim-stm32h753

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