Review rev_48cade95cbd646f0b42dc3ab472d626e

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/cpucap/cpu_aarch64_win.c`, which is a small Windows AArch64 CPU-feature detection routine that sets OpenSSL capability flags using `IsProcessorFeaturePresent` and then marks initialization complete. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/crypto/fipsmodule/fips_shared_support.c`, which only defines a build-time placeholder `BORINGSSL_bcm_text_hash` for the FIPS integrity check when `BORINGSSL_FIPS` and `BORINGSSL_SHARED_LIBRARY` are enabled, plus a dummy typedef for the non-FIPS case. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior in this file.\nReviewed `aws-lc/crypto/rsa_extra/rsa_print.c`, which is a small OpenSSL-compatible helper that wraps `EVP_PKEY_print_private` to print an RSA key to a `BIO` or `FILE`. I found no concrete signs of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.\nReviewed the target assembly source, which is a small `word_clz` helper that returns the count-leading-zeros instruction result (`clz x0, x0`). I checked for install-time hooks, network or exfiltration, credential/secret access, dynamic code loading, obfuscation, persistence, and other hidden control transfer, and found no concrete malicious or supply-chain indicators.\nReviewed `aws-lc/crypto/fipsmodule/self_check/fips.c`, which only defines small FIPS helper functions (`FIPS_mode`, `FIPS_is_entropy_cpu_jitter`, `FIPS_mode_set`) with compile-time gating and a test-only entropy-source check. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "aws-lc/crypto/fipsmodule/cpucap/cpu_aarch64_win.c",
      "hash": "blake3:a4dbeb400c75d5576441c3585ecfb87f26a037feb710d2e3d69c08895761696f",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/cpucap/cpu_aarch64_win.c`, which is a small Windows AArch64 CPU-feature detection routine that sets OpenSSL capability flags using `IsProcessorFeaturePresent` and then marks initialization complete. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/fips_shared_support.c",
      "hash": "blake3:6b259f7d674c8e3a42fde02f2b5c64a88ef6d9412881410b32293d0cc933c423",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/fips_shared_support.c`, which only defines a build-time placeholder `BORINGSSL_bcm_text_hash` for the FIPS integrity check when `BORINGSSL_FIPS` and `BORINGSSL_SHARED_LIBRARY` are enabled, plus a dummy typedef for the non-FIPS case. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/rsa_extra/rsa_print.c",
      "hash": "blake3:3b9ce00e8fec1c6914d9092975ec352ab4fea3c498d7b1407f46946493b8473d",
      "summary": "Reviewed `aws-lc/crypto/rsa_extra/rsa_print.c`, which is a small OpenSSL-compatible helper that wraps `EVP_PKEY_print_private` to print an RSA key to a `BIO` or `FILE`. I found no concrete signs of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/generic/word_clz.S",
      "hash": "blake3:16751131309fce7f111b77a723917959a5f8baa906ac6fb9809be6cecf6b5782",
      "summary": "Reviewed the target assembly source, which is a small `word_clz` helper that returns the count-leading-zeros instruction result (`clz x0, x0`). I checked for install-time hooks, network or exfiltration, credential/secret access, dynamic code loading, obfuscation, persistence, and other hidden control transfer, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/self_check/fips.c",
      "hash": "blake3:4300a21e98812db504101836605d0c6d1f6c7e06ed456ef9eefcc747891f5605",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/self_check/fips.c`, which only defines small FIPS helper functions (`FIPS_mode`, `FIPS_is_entropy_cpu_jitter`, `FIPS_mode_set`) with compile-time gating and a test-only entropy-source check. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}