Review rev_04e8a48d683d4e4897e677ff3b7c2e90

{
  "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/arm/p521/bignum_mul_p521.S",
      "hash": "blake3:52cb11277a4d7f47c57b946fdc5f94aa76f7a6b7216e515bd45cc675aa25c307",
      "summary": "Reviewed the ARM64 assembly implementation of P-521 modular multiplication in `bignum_mul_p521.S`. It consists of register saves, limb arithmetic, and result writes only; I found no install hooks, subprocess or network activity, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p521/bignum_mul_p521_alt.S",
      "hash": "blake3:8d639d4b2acc64389cab9889585f102006e2728eaf4ff9198ec9674fe983c70e",
      "summary": "Reviewed a hand-written AArch64 assembly routine for modular multiplication modulo p_521. It only performs register arithmetic, temporary stack storage, reduction, and register restore; I found no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}