Review rev_b92f61da4d0a439ba4ab4b6bb67f36fd

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem_native_backend.h`, a short platform-gated header that conditionally includes AArch64 or x86_64 ML-KEM backend metadata for Linux and Apple builds. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.\nReviewed `aws-lc/crypto/pem/internal.h`, an internal C header that only declares two PEM helper functions (`PEM_proc_type` and `PEM_dek_info`) behind a C++ extern guard. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior here.\nReviewed `aws-lc/crypto/x509/v3_akeya.c`, which only defines the `AUTHORITY_KEYID` ASN.1 structure and generates its standard parse/encode functions via OpenSSL-style macros. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this target file.\nReviewed the C helper in `aws-lc/crypto/fipsmodule/fips_empty_main.c`, which is a minimal Windows FIPS build executable that prints a status message, calls `FIPS_mode()` to force libcrypto linkage and trigger power-on self-tests, then exits. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.\nReviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem/verify.c`, which only defines a volatile constant-time optimization blocker or compiles to an empty translation unit under feature flags. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain malicious behavior in this 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/ml_kem/mlkem_native_backend.h",
      "hash": "blake3:6f050160b97a89ff5e12bef9f2b88e7fd2ec67ce41685480a29997cf7e81fced",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem_native_backend.h`, a short platform-gated header that conditionally includes AArch64 or x86_64 ML-KEM backend metadata for Linux and Apple builds. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/pem/internal.h",
      "hash": "blake3:c4c656bfb0de324046db48e931e06423e7d82625100154a0e89fa2f6913407b5",
      "summary": "Reviewed `aws-lc/crypto/pem/internal.h`, an internal C header that only declares two PEM helper functions (`PEM_proc_type` and `PEM_dek_info`) behind a C++ extern guard. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior here.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/x509/v3_akeya.c",
      "hash": "blake3:7179f9db299f552f523679510bf45d57cb43a76fe6e1c49f75dc82a6071bdbfa",
      "summary": "Reviewed `aws-lc/crypto/x509/v3_akeya.c`, which only defines the `AUTHORITY_KEYID` ASN.1 structure and generates its standard parse/encode functions via OpenSSL-style macros. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/fips_empty_main.c",
      "hash": "blake3:ddd796a55e1f59efa01e5d96c290d8a8009eba56dc8dccadb495efa361a6f228",
      "summary": "Reviewed the C helper in `aws-lc/crypto/fipsmodule/fips_empty_main.c`, which is a minimal Windows FIPS build executable that prints a status message, calls `FIPS_mode()` to force libcrypto linkage and trigger power-on self-tests, then exits. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/verify.c",
      "hash": "blake3:1e08ef8117d738e8bb0cd1708dd27675c46c268dbeceb18b8ac2d636ff8d9f14",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem/verify.c`, which only defines a volatile constant-time optimization blocker or compiles to an empty translation unit under feature flags. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain malicious behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}