Review rev_65daa0bac9f74e7b94d298bb953723b8

{
  "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/x86_att/p384/bignum_deamont_p384_alt.S",
      "hash": "blake3:ffdcc7384000b58ddc73f32c3d12ef7bb70e36081085a154ea0ee9045270b47b",
      "summary": "Reviewed the x86-64 assembly routine that performs P-384 almost-Montgomery deconversion and final conditional subtraction. I found no concrete indicators of install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, or other supply-chain abuse in this file; it is a direct arithmetic implementation with fixed constants and register moves.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_demont_p384.S",
      "hash": "blake3:7177af5b1374335783bc3e835dccae1aee2e042c066e73f19ccd1633486a3048",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_demont_p384.S`, a straight-line x86-64 assembly routine for P-384 Montgomery deconversion with ABI register shims and fixed arithmetic on input/output buffers. 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"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_demont_p384_alt.S",
      "hash": "blake3:593f75350d4fa1b557179421e3f8007282f3194544e53d79360d72f9e8b2807b",
      "summary": "This x86-64 assembly file implements `bignum_demont_p384_alt`, a P-384 Montgomery de-reduction routine with ABI-specific register setup and a fixed sequence of arithmetic operations. I checked it for install-time execution, subprocess spawning, 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/x86_att/p384/bignum_double_p384.S",
      "hash": "blake3:04504225fdf724d9e5e62a9f713d0c3a93bef293049a88cf6518e987db7e81f1",
      "summary": "Reviewed this x86-64 assembly routine for `bignum_double_p384`, which performs a constant-time modular doubling of a 384-bit field element and writes the reduced result back to the output buffer. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_half_p384.S",
      "hash": "blake3:55fcb1be3304ad8bc9b10d35c012c65e37dd5b28355c27f9c9874eda0bca3e70",
      "summary": "The target file is a small x86-64 assembly routine that halves a 384-bit field element modulo p_384, with separate ABI handling for Windows and ELF stack metadata. I checked it for install-time hooks, subprocess execution, network or credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}