Review rev_f3c4bc3fb18b447eb26c0f007675f49f

{
  "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/chacha/chacha.c",
      "hash": "blake3:6249a2d705eb32fdfe8ccb9c43593a51d1f9c02973ca708ae523e0cac354749b",
      "summary": "Reviewed `aws-lc/crypto/chacha/chacha.c`, which contains the ChaCha20/HChaCha20 core and byte-order handling for standard symmetric encryption. I found no concrete supply-chain or malicious indicators: no install-time hooks, network or exfiltration paths, credential harvesting, dynamic code loading, obfuscation, persistence, or unrelated system probing in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/chacha/chacha_test.cc",
      "hash": "blake3:352251d191814288a054dd6bf3993a4c281bcc724bb32ed9a830ad5e6b5da694",
      "summary": "Reviewed `aws-lc/crypto/chacha/chacha_test.cc`, which is a deterministic ChaCha20 test/ABI verification file with fixed keys, nonces, vectors, and in-process assertions. 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.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/chacha/internal.h",
      "hash": "blake3:7e4471271dc99a5e5cb47e96382b6497d9dc9a922a4c50ed94f9b13d2559988a",
      "summary": "Reviewed `aws-lc/crypto/chacha/internal.h`, a C header that only declares ChaCha20/HChaCha20 interfaces and architecture-specific capability helpers for assembly implementations. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}