Review rev_34713dbdd1f24a50bda85216a8d125d2

{
  "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/p256/bignum_cmul_p256.S",
      "hash": "blake3:cb9f2d5ffb170280939d646e376f7af9712077ce886b649c13d9af18f48166f6",
      "summary": "This file is x86-64 assembly for `bignum_cmul_p256`, implementing a modular multiply modulo the P-256 prime in AWS-LC. I checked for install hooks, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p256/bignum_cmul_p256_alt.S",
      "hash": "blake3:f434a15607429bfe6a9d38b01a87292c3b3f658402c0c4f84d1beed73281743f",
      "summary": "Reviewed the x86-64 assembly routine `bignum_cmul_p256_alt`, which implements a P-256 modular multiply and conditional reduction. I found no install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other concrete supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p256/bignum_deamont_p256.S",
      "hash": "blake3:dd878117927c9ca1997902113cb1b646fabbbe13db70f3e60da3016664873f51",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_deamont_p256`, which performs P-256 Montgomery de-reduction and writes the result back to the output buffer. I checked for install-time hooks, subprocess launches, network or credential access, dynamic code loading, obfuscation, and persistence behavior, 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/p256/bignum_deamont_p256_alt.S",
      "hash": "blake3:3ce791b911ac2660fa68be708e88dfeff3aa38d80b2e1c909fc349c7f3e81196",
      "summary": "This file is a hand-written x86-64 assembly routine that converts a 4-word P-256 value out of almost-Montgomery form, with ABI shims and constant-time limb arithmetic. I checked it for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload indicators, 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/p256/bignum_demont_p256.S",
      "hash": "blake3:0113a5f39904a5ddd065f1f53e908448bbadea0e8ac804e65a811cd53b294afc",
      "summary": "Reviewed the x86-64 assembly routine implementing Montgomery-domain to standard-domain reduction for P-256. It is a fixed arithmetic routine with no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior visible in the target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}