Review rev_2a4add783ea84e1d8ba1bf6178c4fa40

{
  "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/ec_extra/ec_asn1.c",
      "hash": "blake3:e59274f1e99a570f7bd7b169a4184fac68656f44c959577fc8cb810b20d9b703",
      "summary": "`aws-lc/crypto/ec_extra/ec_asn1.c` is a set of EC ASN.1 parsing and marshaling helpers for private keys, public keys, and curve parameters. I checked it for install hooks, subprocess execution, network or secret access, dynamic code loading, obfuscation, and persistence behavior and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ec_extra/ec_derive.c",
      "hash": "blake3:617665b3f6b7386ae9fec1d4c2018e3ffc114cd6d486f976223ab609a74230fb",
      "summary": "Reviewed `aws-lc/crypto/ec_extra/ec_derive.c`, which implements local EC private/public key derivation from an input secret using HKDF-SHA256 and Montgomery reduction, then cleanses temporary buffers. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential harvesting, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}