Review rev_b85b707906ab4acd83a38e7cbd1df374

{
  "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/arm/p384/bignum_littleendian_6.S",
      "hash": "blake3:bfe0dcf6a710ffddb1a31da952bdcab1a5522532bd5aafff14a44b07d3b958a2",
      "summary": "This ARM assembly file implements a fixed 48-byte to 6-word little-endian bignum conversion routine with direct byte loads/stores and symbol aliases. I checked it for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p384/bignum_mod_n384.S",
      "hash": "blake3:e65e41e96e772c33dcf1f36e89593eb76c60303e140cc890f0223bbf78f69657",
      "summary": "Reviewed the ARM64 assembly in `bignum_mod_n384.S`, which implements constant-time modular reduction for P-384 using register arithmetic and conditional moves. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p384/bignum_mod_n384_6.S",
      "hash": "blake3:60cc916ae645bc9ad5bb66475ab685205d1d15aaf2e5228c9f460ee84aaa0e43",
      "summary": "Reviewed this ARM64 assembly routine for P-384 modular reduction. It only loads constants, subtracts the curve order, conditionally restores the input, and stores the result; I found no concrete indicators of install-time execution, network or credential access, dynamic code loading, obfuscation, or persistence behavior in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p384/bignum_mod_p384.S",
      "hash": "blake3:80582427bb3fcffcf6bc550894e8773e19a58b12d331b4fdc3b8b538ce7abd84",
      "summary": "Reviewed the ARM assembly implementation of `bignum_mod_p384`, which performs fixed P-384 modular reduction and short-input zero-padding/copy logic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p384/bignum_mod_p384_6.S",
      "hash": "blake3:4d3af7ffabd694fbb371bcf3adf9ac5c3a664c3807197ac998a271e212de4b1b",
      "summary": "Reviewed the ARM assembly implementation of `bignum_mod_p384_6`, which performs an in-place reduction modulo the P-384 field prime using fixed-register arithmetic and conditional selects. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}