Review rev_0bc46e3cb851465cafb4cb1847b5cf5f

{
  "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/hash_to_curve.c",
      "hash": "blake3:bfefaee81545be7d40d8d3b520fc3bdd43174df9a3ecc13a072c6c208a05638a",
      "summary": "`aws-lc/crypto/ec_extra/hash_to_curve.c` implements RFC 9380 hash-to-curve and hash-to-scalar routines for P-256 and P-384 using fixed-domain, deterministic XMD/SWU logic. I checked this target file for install hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ec_extra/internal.h",
      "hash": "blake3:d5fa1d45e7ac68c05cbc9560c7aaa9979a9b75016e7dd545ca4bf4301ea64cbc",
      "summary": "Reviewed this internal EC header, which only declares hash-to-curve/hash-to-scalar APIs and an EC parameter parser plus a small enum. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload indicators, and found none.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ecdh_extra/ecdh_extra.c",
      "hash": "blake3:1622ddc98b0a97b88b4144d5bd644153b9c3120a527a685c29a6fdd37dde597c",
      "summary": "Reviewed `aws-lc/crypto/ecdh_extra/ecdh_extra.c`, which contains a straightforward `ECDH_compute_key` implementation that derives a shared secret, optionally runs a caller-supplied KDF, or copies the raw bytes into the output buffer. I checked for install-time hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ecdh_extra/ecdh_test.cc",
      "hash": "blake3:4aec284b6f9fca759360d32e99c08915d74a1ca72bee93e7b950df5299029fef",
      "summary": "Reviewed `aws-lc/crypto/ecdh_extra/ecdh_test.cc`, a C++ gtest suite that exercises ECDH test vectors, Wycheproof cases, and curve-mismatch validation. I found no concrete supply-chain indicators in this file: no install hooks, subprocess execution, network or exfiltration behavior, credential or secret access, dynamic code loading, obfuscation, or persistence/tampering logic.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ecdsa_extra/ecdsa_asn1.c",
      "hash": "blake3:7c0f9cf179bac170b6673da5a5839ef423809e7d32fc1ee0265dd4c437ac0f4a",
      "summary": "Reviewed `aws-lc/crypto/ecdsa_extra/ecdsa_asn1.c`, which implements ECDSA signature size calculation plus ASN.1 DER parse/marshal helpers (`ECDSA_SIG_parse`, `ECDSA_SIG_from_bytes`, `ECDSA_SIG_marshal`, `d2i_ECDSA_SIG`, `i2d_ECDSA_SIG`). I found no concrete malicious or supply-chain indicators: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}