Review rev_1b068b72f0444570bd1054a7d2f01070

{
  "summary": "This target is ARM64 assembly for `bignum_cdiv`, implementing a bounded big-number division/remainder routine in AWS-LC's s2n-bignum code. I checked for install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.\nReviewed `aws-lc/crypto/bio/file.c`, which implements the BIO file backend for opening, reading, writing, seeking, and closing local `FILE*` streams. I checked for install-time hooks, network or exfiltration behavior, credential or secret harvesting, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.\nReviewed the Perl perlasm generator for SSSE3 GHASH assembly emission. It only defines labels, tables, and code-generation steps for `gcm_gmult_ssse3` and `gcm_ghash_ssse3`; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.\nReviewed `aws-lc/crypto/ocsp/ocsp_print.c`, which contains OCSP request/response pretty-printers and string-table helpers for certificate status fields. I checked for install-time hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/generic/bignum_cdiv.S",
      "hash": "blake3:6329e1bc69a787e1a54907ac2b79889879a51739ce07db73b91ed8ac44f4578d",
      "summary": "This target is ARM64 assembly for `bignum_cdiv`, implementing a bounded big-number division/remainder routine in AWS-LC's s2n-bignum code. I checked for install-time execution, 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/crypto/bio/file.c",
      "hash": "blake3:cc973df3712d6044da9d3cb150a1eac32be78b9a75e845eb5ed55f3fa0f7f6d1",
      "summary": "Reviewed `aws-lc/crypto/bio/file.c`, which implements the BIO file backend for opening, reading, writing, seeking, and closing local `FILE*` streams. I checked for install-time hooks, network or exfiltration behavior, credential or secret harvesting, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/modes/asm/ghash-ssse3-x86.pl",
      "hash": "blake3:e6813b20f7e3cb80eef4ac4f70b46f38ff277799408bcc396b14231e3bb217d4",
      "summary": "Reviewed the Perl perlasm generator for SSSE3 GHASH assembly emission. It only defines labels, tables, and code-generation steps for `gcm_gmult_ssse3` and `gcm_ghash_ssse3`; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/ocsp/ocsp_print.c",
      "hash": "blake3:5e943424acfa8b667e3d24eab74d6c6cba1132ab09f2fe51152050f4cc3bc533",
      "summary": "Reviewed `aws-lc/crypto/ocsp/ocsp_print.c`, which contains OCSP request/response pretty-printers and string-table helpers for certificate status fields. I checked for install-time hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}