Review rev_d3d789c7c9cd4d3fb1d098d7765381cb

{
  "summary": "Reviewed `aws-lc/crypto/asn1/internal.h`, which is a C internal header declaring ASN.1/time helper APIs, data structures, and constants for AWS-LC. It contains no executable logic and I found no concrete indicators of install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms in this target file.\nReviewed `aws-lc/crypto/x509/t_req.c`, which is a certificate-request pretty-printer for X.509 requests. I checked for install-time hooks, subprocess 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.\nReviewed `aws-lc/crypto/obj/obj_test.cc`, a C++ unit test for ASN.1/OID conversion helpers (`OBJ_cbs2nid`, `OBJ_txt2nid`, `OBJ_obj2txt`, and signature-algorithm lookup) using fixed byte arrays and expected strings. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration calls, credential or secret access, dynamic code loading, obfuscation/decoding pipelines, or persistence behavior.\nReviewed `bignum_mod_n25519.S`, an ARM64 assembly routine that reduces an input big integer modulo the Curve25519 basepoint order and writes the result back to the caller-provided buffer. I checked for install-time hooks, hidden subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior in this file.\nReviewed the x86_64 AVX2 assembly implementation of `mlkem_nttfrombytes_avx2`, which is an auto-derived straight-line transform routine that loads, shuffles, masks, and stores polynomial data. I found no concrete malicious or supply-chain indicators in this file, and no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
  "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/asn1/internal.h",
      "hash": "blake3:fbb4f4e5e73dfe18ae9a821e0048fc529fa7ec301ca26a806575242386e6c91f",
      "summary": "Reviewed `aws-lc/crypto/asn1/internal.h`, which is a C internal header declaring ASN.1/time helper APIs, data structures, and constants for AWS-LC. It contains no executable logic and I found no concrete indicators of install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/x509/t_req.c",
      "hash": "blake3:1b19a36310db72bba68e24089c81912a238091137bb432dc3f985b73f05e277c",
      "summary": "Reviewed `aws-lc/crypto/x509/t_req.c`, which is a certificate-request pretty-printer for X.509 requests. I checked for install-time hooks, subprocess 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"
    },
    {
      "path": "aws-lc/crypto/obj/obj_test.cc",
      "hash": "blake3:ca84eacd796ed45f13e28b0bf851f7dd2d675607ef914b6385487f4da4cc7170",
      "summary": "Reviewed `aws-lc/crypto/obj/obj_test.cc`, a C++ unit test for ASN.1/OID conversion helpers (`OBJ_cbs2nid`, `OBJ_txt2nid`, `OBJ_obj2txt`, and signature-algorithm lookup) using fixed byte arrays and expected strings. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration calls, credential or secret access, dynamic code loading, obfuscation/decoding pipelines, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/curve25519/bignum_mod_n25519.S",
      "hash": "blake3:8a46485ecf091a1e0f31d4c173e78a8e0d3396adb358268775506f9099472ee7",
      "summary": "Reviewed `bignum_mod_n25519.S`, an ARM64 assembly routine that reduces an input big integer modulo the Curve25519 basepoint order and writes the result back to the caller-provided buffer. I checked for install-time hooks, hidden subprocesses, network/exfiltration, 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"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/x86_64/src/nttfrombytes.S",
      "hash": "blake3:9d273a3596513442aa214ebca7202ce345f3cbbb3886f943034cda08087493d9",
      "summary": "Reviewed the x86_64 AVX2 assembly implementation of `mlkem_nttfrombytes_avx2`, which is an auto-derived straight-line transform routine that loads, shuffles, masks, and stores polynomial data. I found no concrete malicious or supply-chain indicators in this file, and no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}