Review rev_dee5682e4c5243a89ed9e7083d90c146

{
  "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/mlkem/native/aarch64/src/ntt.S",
      "hash": "blake3:c32589287b4bb8eeaf6cbe15f2a5851889727687d8e432d6f2e9c37fbcdcac15",
      "summary": "AArch64 assembly implementing `mlkem_ntt_asm`, a forward NTT over a polynomial buffer using caller-supplied twiddle tables and saved NEON registers. I checked for install-time hooks, hidden subprocess execution, network or credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_mulcache_compute_asm.S",
      "hash": "blake3:12dd7a4e1965558ea752a499718dc931102cb56a2b4fc8a223ed5a562e4eee8c",
      "summary": "Reviewed the AArch64 assembly in `aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_mulcache_compute_asm.S`, which is an auto-derived deterministic routine for computing the ML-KEM polynomial multiplication cache. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_reduce_asm.S",
      "hash": "blake3:bfeb59164d6de04ea55615ea95ce6a0da9df2248668b7feffbc802aa08f5b0c1",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_reduce_asm.S`, which is a small AArch64 assembly routine for Barrett reduction of ML-KEM polynomial coefficients. I checked for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior; no concrete malicious or supply-chain indicators were found.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_tobytes_asm.S",
      "hash": "blake3:005175e500eea1c252825144638bb58dac85bf3fb7983e06451c372cd21cf33c",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_tobytes_asm.S`, an auto-derived AArch64 assembly routine that packs a polynomial into its byte representation using fixed loads, vector shuffles, and stores. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_tomont_asm.S",
      "hash": "blake3:11d008a699355d8135d9eecc3b8668fa2d0d5ec211dd790c93226a7583e4ef48",
      "summary": "Reviewed the AArch64 assembly routine in `aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/src/poly_tomont_asm.S`, which implements an in-place Montgomery-domain conversion for 256-element polynomials. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}