Review rev_5f0e7fcd3dce44c9a3d57d6ba947d1af

{
  "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/crypto/fipsmodule/kdf/sskdf.c",
      "hash": "blake3:fef8e8f13dbe505ae140c07e8dd9f86afb7ee634cacbc09fa665da93d1ca0f4d",
      "summary": "Reviewed the SSKDF digest/HMAC implementation in `aws-lc/crypto/fipsmodule/kdf/sskdf.c`, including context setup, the counter-based derivation loop, input bounds, and stack/output cleansing. I found no concrete supply-chain or malicious indicators: there were no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/kem/internal.h",
      "hash": "blake3:71ec3b0dc1d5065fdb5584e2effc36dd1b895d53e7cc67fa9d99104bf6d9e24a",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/kem/internal.h`, which only defines KEM-related structs, function-pointer interfaces, and helper API declarations. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/kem/kem.c",
      "hash": "blake3:a7dd302512aed78ead379f67e109d3ba153f88327d36901af7b5523f371a8837",
      "summary": "Reviewed the KEM registry and key helper implementation in `aws-lc/crypto/fipsmodule/kem/kem.c`. It only wires ML-KEM/Kyber method tables and allocates/copies local key buffers; I found no concrete indicators of install-time execution, network exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/md4/md4.c",
      "hash": "blake3:bd6567bebcad1d7afec73e30537f58edb725fc432eb13cac503a7ee5ac4f7a99",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/md4/md4.c`, which is a straightforward MD4 digest implementation with init/update/final routines and the block compression function. I checked for install-time execution, network or exfiltration behavior, 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"
    }
  ]
}