Review rev_1306131cd203432b8f3ad470cce6b869

{
  "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_ref/reduce.c",
      "hash": "blake3:eb1c3a6a689e3a515f31bb2c05525082950d95fb1a926665c21decc042e31e9e",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/reduce.c`, which contains two small integer-reduction helpers (`montgomery_reduce` and `barrett_reduce`) for ML-KEM arithmetic. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/reduce.h",
      "hash": "blake3:65f1739c162983259dcfcdcbd1f691e65716c8e23810a76c72a6c4b117968e69",
      "summary": "Reviewed the `reduce.h` header, which only defines Kyber reduction constants and declares two reduction functions. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/symmetric-shake.c",
      "hash": "blake3:5e3df3fc9fb834574800b0e9d81db188ba4301eb247f1f9cd853808dcc85c702",
      "summary": "This file contains ML-KEM/Kyber SHAKE128 and SHAKE256 helper routines that copy fixed-size seed/key material into local buffers and pass it to Keccak/SHAKE APIs. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/symmetric.h",
      "hash": "blake3:e4941e0c260bdd0a739c17abdb35ae5508d20d528979ac206512d149d74876e8",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/symmetric.h`, which only contains include guards, cryptographic function declarations, and macro aliases for Kyber/ML-KEM SHA3 and SHAKE helpers. 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 in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/verify.c",
      "hash": "blake3:5b7824d7e52e606c11094947ec6788359e5075077288b409d82ad9346c2414f5",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/verify.c`, which contains two small constant-time helpers: `verify` for byte-array equality and `cmov` for conditional byte-array copying. I checked for install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}