Review rev_5bb29fb2983446ad83b9537eb024a7e7

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/sqrt.c`, which implements big-number square root routines (`BN_mod_sqrt` and `BN_sqrt`) using Tonelli-Shanks-style modular arithmetic and Newton iteration. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or subprocess execution paths.\nReviewed `aws-lc/crypto/fipsmodule/ec/ec_nistp.c`, which implements constant-time elliptic-curve point addition, doubling, and scalar multiplication for NIST P-256/P-384/P-521 using fixed tables and regular-wNAF recoding. I checked for install-time execution, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "aws-lc/crypto/fipsmodule/bn/sqrt.c",
      "hash": "blake3:fef746b492806f05d82bf29fcedc78e23c35e6303f30888c85628736a679743e",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/sqrt.c`, which implements big-number square root routines (`BN_mod_sqrt` and `BN_sqrt`) using Tonelli-Shanks-style modular arithmetic and Newton iteration. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or subprocess execution paths.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ec/ec_nistp.c",
      "hash": "blake3:9550bb468dd19be470f2ef5bcdd6534267cafd325869c4840c2463c205e0db59",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ec/ec_nistp.c`, which implements constant-time elliptic-curve point addition, doubling, and scalar multiplication for NIST P-256/P-384/P-521 using fixed tables and regular-wNAF recoding. I checked for install-time execution, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}