Review rev_d66d6095afbb4ed28b9c54c5ea67c78b

{
  "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_montmul_sm2.S",
      "hash": "blake3:cd0b73d22bc150b0a4d7ebda4b8c0a9508b5a7c3567b129b88d36e24604bae96",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_montmul_sm2.S`, which is a hand-written x86-64 assembly implementation of SM2 Montgomery multiplication and reduction. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation/deobfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_montmul_sm2_alt.S",
      "hash": "blake3:2f96dbd869010eca77993a60ee0cdff614c6b2cbf076a6cff842e3ea7c48f22b",
      "summary": "Reviewed the target x86-64 assembly routine implementing SM2 Montgomery multiplication. It consists only of arithmetic, register save/restore, and ABI glue; I found no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_montsqr_sm2.S",
      "hash": "blake3:0f93688b23c4288fc04cde89e038176807c554bab7b2d3ba2d713faf8866c189",
      "summary": "Reviewed this x86-64 assembly implementation of `bignum_montsqr_sm2`, which performs a constant-time Montgomery square and conditional reduction for SM2 field elements. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence mechanisms, 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/x86_att/sm2/bignum_montsqr_sm2_alt.S",
      "hash": "blake3:1a5987ba76b30facb7b85158ebca31d1b0fca46bee2bf44aa56dd2045a7b72f6",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_montsqr_sm2_alt`, which performs Montgomery squaring and reduction for the SM2 field using միայն register arithmetic and direct memory loads/stores. I found no concrete supply-chain indicators in this file: no install hooks, subprocess launches, 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_neg_sm2.S",
      "hash": "blake3:cc6c2a2d1d111b28cc5b9e2067cfff346ef4a82ed06b57d9e9367d2b42dd7dab",
      "summary": "Reviewed a small x86-64 assembly routine that computes modular negation modulo the SM2 prime, including Windows ABI shims and constant-time arithmetic. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}