Review rev_bf89785297534f3186af12ad3213b6e5

{
  "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/gcc_fips_shared.lds",
      "hash": "blake3:b9bad942bf8cbe674958c92017eb1df0ced695bc840db42741c0cca8eaddf3b7",
      "summary": "Reviewed the linker script in `aws-lc/crypto/fipsmodule/gcc_fips_shared.lds`, which only defines `.text` and `.rodata` section layout and discards a few relocation/data sections for the FIPS module. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/hkdf/hkdf.c",
      "hash": "blake3:8099103449cca9a74df5f22391a9f86a50e626273dc41d5e2b3f6930457a6841",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/hkdf/hkdf.c`, which implements HKDF extract/expand/combine routines using OpenSSL HMAC primitives and FIPS service-indicator locking. I found no concrete supply-chain or malicious indicators in the target file: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/hkdf/hkdf_test.cc",
      "hash": "blake3:4545439f1e3bc33a4b56b414fab58109706dc4ad1be43da108d2d2b8f77128db",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/hkdf/hkdf_test.cc`, which is a HKDF test suite covering RFC 5869 vectors, Wycheproof cases, and NIST CAVP feedback-mode vectors. I checked for install-time hooks, 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"
    }
  ]
}