Review rev_70d74b64ca984fee88c262f011029a17

{
  "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/bn/random.c",
      "hash": "blake3:8cb60935ef23f85344cab98b3fe27cf89f0de827285121941c6aff6f37f0c9a4",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/random.c`, which implements BIGNUM random generation and range-selection helpers using `RAND_bytes` under FIPS service-indicator locks. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain malicious behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/bn/rsaz_exp.c",
      "hash": "blake3:f7453d46f96fbc20f58bfc431a7fa7073b46c4893f62cec7da3d72887a72d6f4",
      "summary": "This file implements the AVX2 RSAZ 1024-bit modular exponentiation path, including precomputation of powers, windowed exponent processing, and cleanup of temporary buffers. I checked it 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/bn/rsaz_exp.h",
      "hash": "blake3:6a31b643ac0cfe8185bf7f37e52ce328394dc2915320cb9c62a4a542cc32354d",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/rsaz_exp.h`, which is a C header of RSAZ/AMM modular-exponentiation declarations and CPU-capability helpers for AWS-LC's BN/FIPS path. I checked it for install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}