Review rev_843340de4d1b44e2b9c85cf205e240bc

{
  "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/x86_att/sm2/bignum_optneg_sm2.S",
      "hash": "blake3:01d66948c5da18e2f28bfc319f2913f99525325a8b9b9815e7281280f3638a84",
      "summary": "Reviewed an x86-64 assembly routine that conditionally negates a 4-limb SM2 field element in constant time, with Windows ABI shims and no install hooks, subprocess launches, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior. The file appears to be a self-contained arithmetic primitive with only local register/memory operations and platform-specific prologue/epilogue handling.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_sub_sm2.S",
      "hash": "blake3:52ea92ed658c99fade577c20174d9f09e6ac05e9d7ba90b61de227c51b64ff2e",
      "summary": "Reviewed this x86-64 assembly implementation of `bignum_sub_sm2`, which performs a fixed modular subtraction for SM2 field elements with ABI shims and stack-safety directives. I found no concrete signs of install hooks, network or credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_tomont_sm2.S",
      "hash": "blake3:d890aa58214b772cfb4a4aa001206c760c3f972ebb72d4aa9e8af214f6718b1c",
      "summary": "This file is an x86-64 assembly routine that converts a 256-bit SM2 field element into Montgomery form using fixed-register arithmetic and ABI shims. I checked for install hooks, subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence; none are present in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_triple_sm2.S",
      "hash": "blake3:4d95945bf7689fe4cb23ed4271606f3028d9bdd513103c46e3c7e30187146aa4",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_triple_sm2`, which performs a constant-time SM2 field triple and final conditional correction on four 64-bit limbs. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_triple_sm2_alt.S",
      "hash": "blake3:5326401426df27a37a071dcfa565d38bc495653f442c34dbfaf86dbaa4d0eb9d",
      "summary": "This file is a standalone x86-64 assembly implementation of `bignum_triple_sm2_alt`, computing `(3 * x) mod p_sm2` with ABI shims and masked reduction logic. I checked it for install-time execution, subprocess spawning, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence hooks, and found no concrete malicious indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}