Review rev_2b2acea95b5e46b4a8b28df004523c29

{
  "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/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mlkem/mlkem_frombytes.S",
      "hash": "blake3:1ace4f1b3cfa16cf4185665aa92fffee80e0825ff83c1d1ee8fa1864dd9aa704",
      "summary": "The target file is a hand-written x86-64 assembly routine that unpacks 384 input bytes into 256 ML-KEM coefficients using SIMD shuffles and bit-masks. I checked it for install-time hooks, subprocess spawning, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mlkem/mlkem_intt.S",
      "hash": "blake3:fabd32afb53156c47363481040b74421ef3427fce03c1deda42b94a14ea36820",
      "summary": "Reviewed this x86-64 assembly implementation of `mlkem_intt_x86`, which performs an in-place ML-KEM inverse NTT using SIMD arithmetic and table lookups from the caller-provided `qdata` buffer. I checked for install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mlkem/mlkem_mulcache_compute.S",
      "hash": "blake3:5343287b7df77d756257bec8070466131342729975c6a0c42b980896d595dabb",
      "summary": "This file is a hand-written x86-64/AVX2 assembly routine for `mlkem_mulcache_compute_x86`, moving polynomial data from the `a` and `qdata` inputs into a computed `x` output buffer. I checked it for install-time hooks, subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}