Review rev_4f99280187414893bd87a6fd84065bef

{
  "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/kyber/pqcrystals_kyber_ref_common/api.h",
      "hash": "blake3:d34098e464526997e151b2a17e3cc4ee301fbe25a91c0fd481ee59fc94c90281",
      "summary": "Reviewed `aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/api.h`, which is a C header that only declares Kyber 512/768/1024 keypair, encapsulation, and decapsulation entry points. I checked for install-time execution, network or exfiltration logic, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and this file contains none of those behaviors.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.c",
      "hash": "blake3:d58f8724f8881a39a1b8f64db724b4c078a04c0b2d73f516a291c5c4d745fec8",
      "summary": "Reviewed the Kyber centered-binomial sampling implementation in `aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.c`. It only performs fixed little-endian byte loading and compile-time selection between `eta1`/`eta2` samplers, and I found no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.h",
      "hash": "blake3:16d21840a1a6651992095318b3b75644664a48fc66b9be8bf3c7f699b42b7340",
      "summary": "Reviewed this header-only Kyber implementation interface, which only declares `poly_cbd_eta1` and `poly_cbd_eta2` and maps them through the `KYBER_NAMESPACE` macro. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, or persistence in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/fips202.c",
      "hash": "blake3:3d424c3b6dc6045f51de5bdcfe05bd43eaa5359178de078606fd236c18c950e1",
      "summary": "The reviewed file is a conventional Keccak/SHAKE/SHA3 implementation with state permutation, absorb/finalize, and squeeze routines. I checked it for install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/fips202.h",
      "hash": "blake3:091bbb279d7d7c0701aa2e54f31ae02eaa7f3cad1b6d4ed2addba4f417b29747",
      "summary": "Reviewed `aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/fips202.h`, which is a small C header that only defines SHAKE/SHA3 constants, a Keccak state struct, and namespaced function prototypes. 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"
    }
  ]
}