Review rev_f8d43d24ebb34985abe5b627d67cbb48

{
  "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/p384/bignum_deamont_p384_alt.S",
      "hash": "blake3:fb19159a38a1d36a3cad67132c7c48a411fc08fb4e5b4cdfcbfa531b5aff0127",
      "summary": "This target file is x86-64 assembly for `bignum_deamont_p384_alt`, a P-384 almost-Montgomery reduction routine that only performs fixed arithmetic and register shuffling. I checked for install-time hooks, network or exfiltration paths, 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/p384/bignum_demont_p384.S",
      "hash": "blake3:8c28db53aaf59325d37bf58abe0d16bd87d5e33328b1e0aa481d4e5c3c55ddcd",
      "summary": "Reviewed an x86-64 assembly routine that performs Montgomery-domain reduction for P-384 and writes the reduced 6-word result back to the caller. I checked for install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior; none are present in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p384/bignum_demont_p384_alt.S",
      "hash": "blake3:56997110ef0f3f927d237849c8c97c03a744316bde5db24cfdfdb50c6a7514af",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_demont_p384_alt`, which only performs fixed Montgomery-style arithmetic on six 64-bit limbs and writes the transformed value back to the output buffer. I checked for install hooks, subprocess execution, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p384/bignum_double_p384.S",
      "hash": "blake3:7f0598b31fc0906bf1a81a540a32b11c6b13fcb030d1b0f0b3fe1019b8a56cca",
      "summary": "Reviewed this x86-64 assembly routine for `bignum_double_p384`, which performs a fixed modular doubling/reduction on six 64-bit limbs. I found no concrete indicators of install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p384/bignum_half_p384.S",
      "hash": "blake3:a27b21915ea68b19b25a5bcdafd1cb02bf4ecb7076ee2e4c9cbf1b5c5bec2327",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_half_p384`, which performs a constant-time halve-modulo-p384 operation on six 64-bit limbs with optional Windows ABI register shuffling. I checked 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 in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}