Review rev_6107dfc37d5e445fa529e6f332b5f6f8

{
  "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/third_party/s2n-bignum/s2n-bignum-imported/arm/curve25519/bignum_sqrt_p25519_alt.S",
      "hash": "blake3:bc30e0f8d5bbe347c3c614684bfb1d07dfb5bd1165006699513e001ee891b368",
      "summary": "This file is a standalone ARM64 assembly implementation of modular square root over p_25519 using fixed exponentiation, conditional selection, and Legendre-symbol return logic. I reviewed it for install-time hooks, network or credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/curve25519/bignum_sub_p25519.S",
      "hash": "blake3:00ea4957f98ef1c629b064a613de769c11cdd0a8f25e25f4dd966855362b1369",
      "summary": "This file is a small AArch64 assembly routine that computes modular subtraction for Curve25519 field elements, with a conditional correction by 19 and a 255-bit mask. I checked for install-time 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"
    }
  ]
}