Review rev_495c515244934d33beeb64fdb8956175

{
  "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/arm/p384/bignum_littleendian_6.S",
      "hash": "blake3:b7e631086c9673d6774798fbacfeaca9e248e86dc1e497f3a6c5fb5b45d3df9b",
      "summary": "Reviewed this ARM assembly routine that converts 384-bit bignums between byte and word little-endian forms by loading 48 input bytes and storing six 64-bit words. I checked for install-time hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_mod_n384.S",
      "hash": "blake3:4a7d7c7666bd612a317a12fe50f415bdd775c25c318d77585ba41ce780a6ead3",
      "summary": "Reviewed the ARM assembly implementation of P-384 modular reduction in `bignum_mod_n384`, including its constant loading, arithmetic loops, and copy/writeback paths. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence tampering.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_mod_n384_6.S",
      "hash": "blake3:c0ace5540e61570029b39766e5802124fd9593fc56f9c9a93f06ba0f8367b93f",
      "summary": "Reviewed the ARM assembly implementation of `bignum_mod_n384_6`, which performs fixed-input modular reduction for P-384 field elements and only loads constants, does arithmetic, conditionally selects results, and stores the output. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_mod_p384.S",
      "hash": "blake3:717ebaa12c8297bc96fa608fc5439b9b99ddde603e2b1debe770ac79a7e336d6",
      "summary": "Reviewed the ARM assembly implementation of `bignum_mod_p384`, which performs in-place modular reduction and a short zero-padded copy path for 384-bit big integers. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution; none were present in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_mod_p384_6.S",
      "hash": "blake3:ccb7ebaaaf3bd7c80a2b80929231d390381d523460f8816e69cc529d71a18fab",
      "summary": "Reviewed the ARM64 assembly implementation of `bignum_mod_p384_6`, which performs a fixed P-384 modular reduction by loading constants, subtracting the modulus, conditionally selecting the reduced or original limbs, and storing the result. I checked for install-time hooks, network or credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}