Review rev_41b25948a9484bf8b020c43844442927

{
  "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/fastmul/bignum_sqr_4_8_alt.S",
      "hash": "blake3:de7536e67b038f47de8564bf1644a7f6460c68e3451c07c58006b75d8947c2f1",
      "summary": "This file is a handwritten x86-64 assembly routine for 4-limb bignum squaring with standard and Windows x64 ABI shims. I checked it for install-time execution, subprocesses, network or exfiltration, secret access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/fastmul/bignum_sqr_6_12.S",
      "hash": "blake3:ad96b46300de6a9f34429ed8823245254143806344bcd313fed23eb30b71014c",
      "summary": "Reviewed the hand-written x86-64 assembly implementation of `bignum_sqr_6_12`, which performs a fixed-size 6-limb big-integer square with ABI-specific register setup/teardown and no embedded install hooks, network/exfiltration, 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/fastmul/bignum_sqr_6_12_alt.S",
      "hash": "blake3:9e41612fda93a0c14c22aa5325ae1d2f217af4e1262a90b1792361c04fbc6335",
      "summary": "Reviewed this x86-64 assembly source for a 6-limb bignum squaring routine and checked for install hooks, subprocess spawning, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior. No concrete malicious or supply-chain indicators were found; the file is straight-line arithmetic with ABI setup and result storage only.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/fastmul/bignum_sqr_8_16.S",
      "hash": "blake3:fd7076efcdd87d36d61241a59d622ece6cd801d5eda28afbc290fd186f1140b3",
      "summary": "The target file is x86-64 assembly for `bignum_sqr_8_16`, implementing a fixed-size big-number squaring routine with register arithmetic and memory stores only. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/fastmul/bignum_sqr_8_16_alt.S",
      "hash": "blake3:0d440fc0c3681f0d478c55e188bf83883a56ae742a718ff89a16e9420d99e23c",
      "summary": "Reviewed this target x86-64 assembly routine for `bignum_sqr_8_16_alt`, which implements a fixed-size 8-limb big-number square and writes 16 output limbs. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}