Review rev_232644be08f64caa92a8ef3207bd3299

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/indcpa.c`, which implements the ML-KEM/Kyber IND-CPA keypair, encryption, and decryption routines plus packing, rejection sampling, and matrix generation helpers. I checked for install 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 in this file.\nReviewed `aws-lc/crypto/fipsmodule/bn/random.c`, which implements BIGNUM random generation and range sampling using `RAND_bytes`/`RAND_bytes_with_additional_data` under FIPS service-indicator locking. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration code, credential/secret access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.\nReviewed aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/poly.c, which contains ML-KEM polynomial compression/decompression, byte serialization, message conversion, and deterministic noise sampling. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence tampering, or hidden payload execution in this target file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "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 the ML-KEM/Kyber IND-CPA keypair, encryption, and decryption routines plus packing, rejection sampling, and matrix generation helpers. I checked for install 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 in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/bn/random.c",
      "hash": "blake3:8cb60935ef23f85344cab98b3fe27cf89f0de827285121941c6aff6f37f0c9a4",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/random.c`, which implements BIGNUM random generation and range sampling using `RAND_bytes`/`RAND_bytes_with_additional_data` under FIPS service-indicator locking. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration code, credential/secret access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/poly.c",
      "hash": "blake3:7d8d543d9c54fc5afc5d76f6fc635b781ac50ab47423b1552ba4edd5de72145e",
      "summary": "Reviewed aws-lc/crypto/fipsmodule/ml_kem/ml_kem_ref/poly.c, which contains ML-KEM polynomial compression/decompression, byte serialization, message conversion, and deterministic noise sampling. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence tampering, or hidden payload execution in this target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}