Review rev_ab3671483deb41af9abccd141e2ecadc

{
  "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/secp256k1/secp256k1_jmixadd_alt.S",
      "hash": "blake3:c38c15ca2530bc0c58fdada0bf7b72ff9376e825541e9986ba5dcda16d97b765",
      "summary": "Reviewed this ARM assembly implementation of secp256k1 mixed-point addition, including its macro-expanded arithmetic path and final conditional copy-back logic. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/sha3/sha3_keccak2_f1600.S",
      "hash": "blake3:24ed73976d8877b547c493c1a726a57356713b961e0759456f88fae90aef05fc",
      "summary": "AArch64 assembly implementing the Keccak-f1600 permutation for SHA3 on two independent states; I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/sha3/sha3_keccak2_f1600_alt.S",
      "hash": "blake3:f2eb132c15223280ee96eeb78507b9efa19ae16dde86f2681ff1c95130fe0ce0",
      "summary": "Reviewed the ARMv8.4-A SHA3/Keccak-f1600 assembly implementation for two parallel states. It consists of fixed vector/register operations to load, permute, and store the Keccak state, and I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}