Review rev_6428b0d01c4d48fd99ed444262725243

{
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "high"
  },
  "files": [
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem.h",
      "hash": "blake3:8c6869798770068343b4b79d6d01558811e0a795819812f45803f23f5e60dd64",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem.h`, which only declares ML-KEM keygen/encapsulate/decapsulate APIs and size constants for 512/768/1024 variants. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/cbd.c",
      "hash": "blake3:80aca3719a0dc4b45b297d8d8147661a2480eaf81113d80ba84c3b8e1ecc5017",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/cbd.c`, which implements centered binomial sampling helpers for ML-KEM/Kyber (`load24/32_littleendian`, `cbd2`, `cbd3`, and the `poly_cbd_*` wrappers). I checked for install-time hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/cbd.h",
      "hash": "blake3:c204233ea86728e0a4cb73e6aca3a4fafe4f9ef50d08536b3ac6bd59cd9e0ba2",
      "summary": "The target file is a small C header that declares two Kyber CBD helper functions (`poly_cbd_eta1` and `poly_cbd_eta2`) and includes parameter/poly types. I reviewed it for install-time execution, network or 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/ml_kem/ml_kem_ref/indcpa.c",
      "hash": "blake3:1757ecc6f2c30b40356789916f7e0f2b9b7e59de53de3f620897ee525031bad1",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/indcpa.c`, which implements ML-KEM/Kyber IND-CPA key generation, encapsulation, decapsulation, packing/unpacking, and rejection sampling. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload execution in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/indcpa.h",
      "hash": "blake3:cd440493a8d10a77a1a531575e2f56483425a99741240d2ce4fe1503f463aeb7",
      "summary": "Reviewed the C header declarations in `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/indcpa.h`, which only exposes namespace-mapped prototypes for ML-KEM IND-CPA matrix generation, keypair derivation, encryption, and decryption. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}